Support encrypted backup files
Also includes features merged from:
Update twrpTar by kokotas
Revised function entryExists().
Added function to get archive's uncompressed size.
Added option to exclude item(s) from the archive.
Revised forks()
http://review.teamw.in/#/c/590/
Change-Id: I01fa2c81643161984eff2625247af75990684bd9
diff --git a/openaes/Android.mk b/openaes/Android.mk
new file mode 100644
index 0000000..1beefda
--- /dev/null
+++ b/openaes/Android.mk
@@ -0,0 +1,26 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+ifneq ($(TW_EXCLUDE_ENCRYPTED_BACKUPS), true)
+ LOCAL_SRC_FILES:= src/oaes.c \
+ LOCAL_C_INCLUDES := \
+ bootable/recovery/openaes/src/isaac \
+ bootable/recovery/openaes/inc
+ LOCAL_CFLAGS:= -g -c -W
+ LOCAL_MODULE:=openaes
+ LOCAL_MODULE_TAGS:= eng
+ LOCAL_MODULE_CLASS := RECOVERY_EXECUTABLES
+ LOCAL_MODULE_PATH := $(TARGET_RECOVERY_ROOT_OUT)/sbin
+ LOCAL_SHARED_LIBRARIES = libopenaes libc
+ include $(BUILD_EXECUTABLE)
+
+ include $(CLEAR_VARS)
+ LOCAL_MODULE := libopenaes
+ LOCAL_MODULE_TAGS := eng
+ LOCAL_C_INCLUDES := \
+ bootable/recovery/openaes/src/isaac \
+ bootable/recovery/openaes/inc
+ LOCAL_SRC_FILES = src/oaes_lib.c src/isaac/rand.c
+ LOCAL_SHARED_LIBRARIES = libc
+ include $(BUILD_SHARED_LIBRARY)
+endif
diff --git a/openaes/CHANGELOG b/openaes/CHANGELOG
new file mode 100644
index 0000000..8ea94cf
--- /dev/null
+++ b/openaes/CHANGELOG
@@ -0,0 +1,43 @@
+---------------------------------------------------------------------------
+OpenAES-0.7.0
+Nabil S. Al Ramli
+www.nalramli.com
+---------------------------------------------------------------------------
+
+OpenAES-0.7.0
+-------------
+* implement oaes command line utility
+* defect: oaes_decrypt() does not have a way to tell if pad pattern is accidental
+
+OpenAES-0.6.0
+-------------
+* add stepping pause to vt_aes
+
+OpenAES-0.5.0
+-------------
+* defect: algorithm errors with ExpandKey for 192 bit and 256 bit keys
+
+OpenAES-0.4.0
+-------------
+* add vt_aes test program
+* defect: algorithm errors with ShiftRows and MixColumns
+* OAES_DEBUG config to step through encryption and decryption
+* defect: test_performance crash when printing results
+* allow user to specify iv by passing it to oaes_set_option()
+* oaes_key_import_data() and oaes_key_export_data() to operate on key data directly
+* defect: Access violation in oaes_key_export()
+
+OpenAES-0.3.0
+-------------
+* Add CMake support
+* platform independence fixes
+
+OpenAES-0.2.0
+-------------
+* Add performance tests
+* Implement CBC mode in AES algorithm
+* Performance improvements in oaes_shift_rows() and oaes_inv_shift_rows()
+
+OpenAES-0.1.0
+-------------
+* Implement AES algorithm
diff --git a/openaes/CMakeLists.txt b/openaes/CMakeLists.txt
new file mode 100644
index 0000000..251d5a3
--- /dev/null
+++ b/openaes/CMakeLists.txt
@@ -0,0 +1,74 @@
+# ---------------------------------------------------------------------------
+# OpenAES License
+# ---------------------------------------------------------------------------
+# Copyright (c) 2012, Nabil S. Al Ramli, www.nalramli.com
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+# - Redistributions of source code must retain the above copyright notice,
+# this list of conditions and the following disclaimer.
+# - Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+# ---------------------------------------------------------------------------
+
+cmake_minimum_required (VERSION 2.8.0)
+
+project ( "oaes" )
+
+include_directories (
+ ${CMAKE_CURRENT_SOURCE_DIR}/inc
+ ${CMAKE_CURRENT_SOURCE_DIR}/src/isaac
+ )
+
+set (SRC
+ ${CMAKE_CURRENT_SOURCE_DIR}/src/oaes_lib.c
+ ${CMAKE_CURRENT_SOURCE_DIR}/src/isaac/rand.c
+ )
+
+set (HDR
+ ${CMAKE_CURRENT_SOURCE_DIR}/inc/oaes_config.h
+ ${CMAKE_CURRENT_SOURCE_DIR}/inc/oaes_lib.h
+ ${CMAKE_CURRENT_SOURCE_DIR}/src/isaac/rand.h
+ ${CMAKE_CURRENT_SOURCE_DIR}/src/isaac/standard.h
+ )
+
+set (SRC_test_encrypt
+ ${CMAKE_CURRENT_SOURCE_DIR}/test/test_encrypt.c
+ )
+
+set (SRC_test_keys
+ ${CMAKE_CURRENT_SOURCE_DIR}/test/test_keys.c
+ )
+
+set (SRC_test_performance
+ ${CMAKE_CURRENT_SOURCE_DIR}/test/test_performance.c
+ )
+
+set (SRC_vt_aes
+ ${CMAKE_CURRENT_SOURCE_DIR}/test/vt_aes.c
+ )
+
+set (SRC_oaes
+ ${CMAKE_CURRENT_SOURCE_DIR}/src/oaes.c
+ )
+
+add_executable (test_encrypt ${SRC_test_encrypt} ${SRC} ${HDR})
+add_executable (test_keys ${SRC_test_keys} ${SRC} ${HDR})
+add_executable (test_performance ${SRC_test_performance} ${SRC} ${HDR})
+add_executable (vt_aes ${SRC_vt_aes} ${SRC} ${HDR})
+add_executable (oaes ${SRC_oaes} ${SRC} ${HDR})
diff --git a/openaes/LICENSE b/openaes/LICENSE
new file mode 100644
index 0000000..d824e13
--- /dev/null
+++ b/openaes/LICENSE
@@ -0,0 +1,27 @@
+---------------------------------------------------------------------------
+OpenAES Licence
+---------------------------------------------------------------------------
+Copyright (c) 2012, Nabil S. Al Ramli, www.nalramli.com
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ - Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+ - Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
diff --git a/openaes/README b/openaes/README
new file mode 100644
index 0000000..6fb957b
--- /dev/null
+++ b/openaes/README
@@ -0,0 +1,78 @@
+---------------------------------------------------------------------------
+OpenAES-0.7.0
+Nabil S. Al Ramli
+www.nalramli.com
+---------------------------------------------------------------------------
+
+License Terms
+-------------
+
+---------------------------------------------------------------------------
+OpenAES Licence
+---------------------------------------------------------------------------
+Copyright (c) 2012, Nabil S. Al Ramli, www.nalramli.com
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ - Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+ - Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+
+Introduction
+------------
+
+OpenAES is an open source implementation of the Advanced Encryption
+Standard. It is distributed as a portable, lightweight C library that can
+be easily integrated into applications.
+
+Compiling
+---------
+
+OpenAES has been tested with the GCC as well as VC compilers. It is
+necessary to compile the source files located in ./src, and to add ./inc to
+the include paths.
+
+If you are building with OAES_HAVE_ISAAC defined (true by default), then
+you also need to link in the source files under ./src/isaac and also add
+./src/isaac to the include paths.
+
+You may edit ./inc/oaes_config.h to modify build options.
+
+CMake 2.8.0 can be used to build the test programs on different platforms.
+
+In a Linux command line terminal type:
+
+cmake .
+make
+
+In Windows, in a Visual Studio command line window type:
+
+cmake . -G "NMake Makefiles"
+nmake
+
+Usage
+-----
+
+Usage is described in the header file ./inc/oaes_lib.h.
+
+Samples
+-------
+
+Samples applications are provided in the /test folder.
diff --git a/openaes/VERSION b/openaes/VERSION
new file mode 100644
index 0000000..831dbdd
--- /dev/null
+++ b/openaes/VERSION
@@ -0,0 +1 @@
+OpenAES-0.7.0
\ No newline at end of file
diff --git a/openaes/inc/oaes_config.h b/openaes/inc/oaes_config.h
new file mode 100644
index 0000000..d887f03
--- /dev/null
+++ b/openaes/inc/oaes_config.h
@@ -0,0 +1,50 @@
+/*
+ * ---------------------------------------------------------------------------
+ * OpenAES License
+ * ---------------------------------------------------------------------------
+ * Copyright (c) 2012, Nabil S. Al Ramli, www.nalramli.com
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ * ---------------------------------------------------------------------------
+ */
+
+#ifndef _OAES_CONFIG_H
+#define _OAES_CONFIG_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef OAES_HAVE_ISAAC
+#define OAES_HAVE_ISAAC 1
+#endif // OAES_HAVE_ISAAC
+
+#ifndef OAES_DEBUG
+#define OAES_DEBUG 0
+#endif // OAES_DEBUG
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _OAES_CONFIG_H
diff --git a/openaes/inc/oaes_lib.h b/openaes/inc/oaes_lib.h
new file mode 100644
index 0000000..fd89a70
--- /dev/null
+++ b/openaes/inc/oaes_lib.h
@@ -0,0 +1,172 @@
+/*
+ * ---------------------------------------------------------------------------
+ * OpenAES License
+ * ---------------------------------------------------------------------------
+ * Copyright (c) 2012, Nabil S. Al Ramli, www.nalramli.com
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ * ---------------------------------------------------------------------------
+ */
+
+#ifndef _OAES_LIB_H
+#define _OAES_LIB_H
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define OAES_VERSION "0.7.0"
+#define OAES_BLOCK_SIZE 16
+
+typedef void OAES_CTX;
+
+typedef enum
+{
+ OAES_RET_FIRST = 0,
+ OAES_RET_SUCCESS = 0,
+ OAES_RET_UNKNOWN,
+ OAES_RET_ARG1,
+ OAES_RET_ARG2,
+ OAES_RET_ARG3,
+ OAES_RET_ARG4,
+ OAES_RET_ARG5,
+ OAES_RET_NOKEY,
+ OAES_RET_MEM,
+ OAES_RET_BUF,
+ OAES_RET_HEADER,
+ OAES_RET_COUNT
+} OAES_RET;
+
+/*
+ * oaes_set_option() takes one of these values for its [option] parameter
+ * some options accept either an optional or a required [value] parameter
+ */
+// no option
+#define OAES_OPTION_NONE 0
+// enable ECB mode, disable CBC mode
+#define OAES_OPTION_ECB 1
+// enable CBC mode, disable ECB mode
+// value is optional, may pass uint8_t iv[OAES_BLOCK_SIZE] to specify
+// the value of the initialization vector, iv
+#define OAES_OPTION_CBC 2
+
+#ifdef OAES_DEBUG
+typedef int ( * oaes_step_cb ) (
+ const uint8_t state[OAES_BLOCK_SIZE],
+ const char * step_name,
+ int step_count,
+ void * user_data );
+// enable state stepping mode
+// value is required, must pass oaes_step_cb to receive the state at each step
+#define OAES_OPTION_STEP_ON 4
+// disable state stepping mode
+#define OAES_OPTION_STEP_OFF 8
+#endif // OAES_DEBUG
+
+typedef uint16_t OAES_OPTION;
+
+/*
+ * // usage:
+ *
+ * OAES_CTX * ctx = oaes_alloc();
+ * .
+ * .
+ * .
+ * {
+ * oaes_gen_key_xxx( ctx );
+ * {
+ * oaes_key_export( ctx, _buf, &_buf_len );
+ * // or
+ * oaes_key_export_data( ctx, _buf, &_buf_len );\
+ * }
+ * }
+ * // or
+ * {
+ * oaes_key_import( ctx, _buf, _buf_len );
+ * // or
+ * oaes_key_import_data( ctx, _buf, _buf_len );
+ * }
+ * .
+ * .
+ * .
+ * oaes_encrypt( ctx, m, m_len, c, &c_len );
+ * .
+ * .
+ * .
+ * oaes_decrypt( ctx, c, c_len, m, &m_len );
+ * .
+ * .
+ * .
+ * oaes_free( &ctx );
+ */
+
+OAES_CTX * oaes_alloc();
+
+OAES_RET oaes_free( OAES_CTX ** ctx );
+
+OAES_RET oaes_set_option( OAES_CTX * ctx,
+ OAES_OPTION option, const void * value );
+
+OAES_RET oaes_key_gen_128( OAES_CTX * ctx );
+
+OAES_RET oaes_key_gen_192( OAES_CTX * ctx );
+
+OAES_RET oaes_key_gen_256( OAES_CTX * ctx );
+
+// export key with header information
+// set data == NULL to get the required data_len
+OAES_RET oaes_key_export( OAES_CTX * ctx,
+ uint8_t * data, size_t * data_len );
+
+// directly export the data from key
+// set data == NULL to get the required data_len
+OAES_RET oaes_key_export_data( OAES_CTX * ctx,
+ uint8_t * data, size_t * data_len );
+
+// import key with header information
+OAES_RET oaes_key_import( OAES_CTX * ctx,
+ const uint8_t * data, size_t data_len );
+
+// directly import data into key
+OAES_RET oaes_key_import_data( OAES_CTX * ctx,
+ const uint8_t * data, size_t data_len );
+
+// set c == NULL to get the required c_len
+OAES_RET oaes_encrypt( OAES_CTX * ctx,
+ const uint8_t * m, size_t m_len, uint8_t * c, size_t * c_len );
+
+// set m == NULL to get the required m_len
+OAES_RET oaes_decrypt( OAES_CTX * ctx,
+ const uint8_t * c, size_t c_len, uint8_t * m, size_t * m_len );
+
+// set buf == NULL to get the required buf_len
+OAES_RET oaes_sprintf(
+ char * buf, size_t * buf_len, const uint8_t * data, size_t data_len );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _OAES_LIB_H
diff --git a/openaes/src/isaac/rand.c b/openaes/src/isaac/rand.c
new file mode 100644
index 0000000..63babc7
--- /dev/null
+++ b/openaes/src/isaac/rand.c
@@ -0,0 +1,137 @@
+/*
+------------------------------------------------------------------------------
+rand.c: By Bob Jenkins. My random number generator, ISAAC. Public Domain.
+MODIFIED:
+ 960327: Creation (addition of randinit, really)
+ 970719: use context, not global variables, for internal state
+ 980324: added main (ifdef'ed out), also rearranged randinit()
+ 010626: Note that this is public domain
+------------------------------------------------------------------------------
+*/
+#ifndef STANDARD
+#include "standard.h"
+#endif
+#ifndef RAND
+#include "rand.h"
+#endif
+
+
+#define ind(mm,x) (*(ub4 *)((ub1 *)(mm) + ((x) & ((RANDSIZ-1)<<2))))
+#define rngstep(mix,a,b,mm,m,m2,r,x) \
+{ \
+ x = *m; \
+ a = (a^(mix)) + *(m2++); \
+ *(m++) = y = ind(mm,x) + a + b; \
+ *(r++) = b = ind(mm,y>>RANDSIZL) + x; \
+}
+
+void isaac(ctx)
+randctx *ctx;
+{
+ register ub4 a,b,x,y,*m,*mm,*m2,*r,*mend;
+ mm=ctx->randmem; r=ctx->randrsl;
+ a = ctx->randa; b = ctx->randb + (++ctx->randc);
+ for (m = mm, mend = m2 = m+(RANDSIZ/2); m<mend; )
+ {
+ rngstep( a<<13, a, b, mm, m, m2, r, x);
+ rngstep( a>>6 , a, b, mm, m, m2, r, x);
+ rngstep( a<<2 , a, b, mm, m, m2, r, x);
+ rngstep( a>>16, a, b, mm, m, m2, r, x);
+ }
+ for (m2 = mm; m2<mend; )
+ {
+ rngstep( a<<13, a, b, mm, m, m2, r, x);
+ rngstep( a>>6 , a, b, mm, m, m2, r, x);
+ rngstep( a<<2 , a, b, mm, m, m2, r, x);
+ rngstep( a>>16, a, b, mm, m, m2, r, x);
+ }
+ ctx->randb = b; ctx->randa = a;
+}
+
+
+#define mix(a,b,c,d,e,f,g,h) \
+{ \
+ a^=b<<11; d+=a; b+=c; \
+ b^=c>>2; e+=b; c+=d; \
+ c^=d<<8; f+=c; d+=e; \
+ d^=e>>16; g+=d; e+=f; \
+ e^=f<<10; h+=e; f+=g; \
+ f^=g>>4; a+=f; g+=h; \
+ g^=h<<8; b+=g; h+=a; \
+ h^=a>>9; c+=h; a+=b; \
+}
+
+/* if (flag==TRUE), then use the contents of randrsl[] to initialize mm[]. */
+void randinit(ctx, flag)
+randctx *ctx;
+word flag;
+{
+ word i;
+ ub4 a,b,c,d,e,f,g,h;
+ ub4 *m,*r;
+ ctx->randa = ctx->randb = ctx->randc = 0;
+ m=ctx->randmem;
+ r=ctx->randrsl;
+ a=b=c=d=e=f=g=h=0x9e3779b9; /* the golden ratio */
+
+ for (i=0; i<4; ++i) /* scramble it */
+ {
+ mix(a,b,c,d,e,f,g,h);
+ }
+
+ if (flag)
+ {
+ /* initialize using the contents of r[] as the seed */
+ for (i=0; i<RANDSIZ; i+=8)
+ {
+ a+=r[i ]; b+=r[i+1]; c+=r[i+2]; d+=r[i+3];
+ e+=r[i+4]; f+=r[i+5]; g+=r[i+6]; h+=r[i+7];
+ mix(a,b,c,d,e,f,g,h);
+ m[i ]=a; m[i+1]=b; m[i+2]=c; m[i+3]=d;
+ m[i+4]=e; m[i+5]=f; m[i+6]=g; m[i+7]=h;
+ }
+ /* do a second pass to make all of the seed affect all of m */
+ for (i=0; i<RANDSIZ; i+=8)
+ {
+ a+=m[i ]; b+=m[i+1]; c+=m[i+2]; d+=m[i+3];
+ e+=m[i+4]; f+=m[i+5]; g+=m[i+6]; h+=m[i+7];
+ mix(a,b,c,d,e,f,g,h);
+ m[i ]=a; m[i+1]=b; m[i+2]=c; m[i+3]=d;
+ m[i+4]=e; m[i+5]=f; m[i+6]=g; m[i+7]=h;
+ }
+ }
+ else
+ {
+ /* fill in m[] with messy stuff */
+ for (i=0; i<RANDSIZ; i+=8)
+ {
+ mix(a,b,c,d,e,f,g,h);
+ m[i ]=a; m[i+1]=b; m[i+2]=c; m[i+3]=d;
+ m[i+4]=e; m[i+5]=f; m[i+6]=g; m[i+7]=h;
+ }
+ }
+
+ isaac(ctx); /* fill in the first set of results */
+ ctx->randcnt=RANDSIZ; /* prepare to use the first set of results */
+}
+
+
+#ifdef NEVER
+int main()
+{
+ ub4 i,j;
+ randctx ctx;
+ ctx.randa=ctx.randb=ctx.randc=(ub4)0;
+ for (i=0; i<256; ++i) ctx.randrsl[i]=(ub4)0;
+ randinit(&ctx, TRUE);
+ for (i=0; i<2; ++i)
+ {
+ isaac(&ctx);
+ for (j=0; j<256; ++j)
+ {
+ printf("%.8lx",ctx.randrsl[j]);
+ if ((j&7)==7) printf("\n");
+ }
+ }
+}
+#endif
diff --git a/openaes/src/isaac/rand.h b/openaes/src/isaac/rand.h
new file mode 100644
index 0000000..73f6e3e
--- /dev/null
+++ b/openaes/src/isaac/rand.h
@@ -0,0 +1,56 @@
+/*
+------------------------------------------------------------------------------
+rand.h: definitions for a random number generator
+By Bob Jenkins, 1996, Public Domain
+MODIFIED:
+ 960327: Creation (addition of randinit, really)
+ 970719: use context, not global variables, for internal state
+ 980324: renamed seed to flag
+ 980605: recommend RANDSIZL=4 for noncryptography.
+ 010626: note this is public domain
+------------------------------------------------------------------------------
+*/
+#ifndef STANDARD
+#include "standard.h"
+#endif
+
+#ifndef RAND
+#define RAND
+#define RANDSIZL (8)
+#define RANDSIZ (1<<RANDSIZL)
+
+/* context of random number generator */
+struct randctx
+{
+ ub4 randcnt;
+ ub4 randrsl[RANDSIZ];
+ ub4 randmem[RANDSIZ];
+ ub4 randa;
+ ub4 randb;
+ ub4 randc;
+};
+typedef struct randctx randctx;
+
+/*
+------------------------------------------------------------------------------
+ If (flag==TRUE), then use the contents of randrsl[0..RANDSIZ-1] as the seed.
+------------------------------------------------------------------------------
+*/
+void randinit(/*_ randctx *r, word flag _*/);
+
+void isaac(/*_ randctx *r _*/);
+
+
+/*
+------------------------------------------------------------------------------
+ Call rand(/o_ randctx *r _o/) to retrieve a single 32-bit random value
+------------------------------------------------------------------------------
+*/
+#define rand(r) \
+ (!(r)->randcnt-- ? \
+ (isaac(r), (r)->randcnt=RANDSIZ-1, (r)->randrsl[(r)->randcnt]) : \
+ (r)->randrsl[(r)->randcnt])
+
+#endif /* RAND */
+
+
diff --git a/openaes/src/isaac/standard.h b/openaes/src/isaac/standard.h
new file mode 100644
index 0000000..202a5d6
--- /dev/null
+++ b/openaes/src/isaac/standard.h
@@ -0,0 +1,57 @@
+/*
+------------------------------------------------------------------------------
+Standard definitions and types, Bob Jenkins
+------------------------------------------------------------------------------
+*/
+#ifndef STANDARD
+# define STANDARD
+# ifndef STDIO
+# include <stdio.h>
+# define STDIO
+# endif
+# ifndef STDDEF
+# include <stddef.h>
+# define STDDEF
+# endif
+typedef unsigned long long ub8;
+#define UB8MAXVAL 0xffffffffffffffffLL
+#define UB8BITS 64
+typedef signed long long sb8;
+#define SB8MAXVAL 0x7fffffffffffffffLL
+typedef unsigned long int ub4; /* unsigned 4-byte quantities */
+#define UB4MAXVAL 0xffffffff
+typedef signed long int sb4;
+#define UB4BITS 32
+#define SB4MAXVAL 0x7fffffff
+typedef unsigned short int ub2;
+#define UB2MAXVAL 0xffff
+#define UB2BITS 16
+typedef signed short int sb2;
+#define SB2MAXVAL 0x7fff
+typedef unsigned char ub1;
+#define UB1MAXVAL 0xff
+#define UB1BITS 8
+typedef signed char sb1; /* signed 1-byte quantities */
+#define SB1MAXVAL 0x7f
+typedef int word; /* fastest type available */
+
+#define bis(target,mask) ((target) |= (mask))
+#define bic(target,mask) ((target) &= ~(mask))
+#define bit(target,mask) ((target) & (mask))
+#ifndef min
+# define min(a,b) (((a)<(b)) ? (a) : (b))
+#endif /* min */
+#ifndef max
+# define max(a,b) (((a)<(b)) ? (b) : (a))
+#endif /* max */
+#ifndef align
+# define align(a) (((ub4)a+(sizeof(void *)-1))&(~(sizeof(void *)-1)))
+#endif /* align */
+#ifndef abs
+# define abs(a) (((a)>0) ? (a) : -(a))
+#endif
+#define TRUE 1
+#define FALSE 0
+#define SUCCESS 0 /* 1 on VAX */
+
+#endif /* STANDARD */
diff --git a/openaes/src/oaes.c b/openaes/src/oaes.c
new file mode 100644
index 0000000..9a5d268
--- /dev/null
+++ b/openaes/src/oaes.c
@@ -0,0 +1,317 @@
+/*
+ * ---------------------------------------------------------------------------
+ * OpenAES License
+ * ---------------------------------------------------------------------------
+ * Copyright (c) 2012, Nabil S. Al Ramli, www.nalramli.com
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ * ---------------------------------------------------------------------------
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define OAES_DEBUG 1
+#include "../inc/oaes_lib.h"
+
+#if defined(_WIN32) && !defined(__SYMBIAN32__)
+#include <io.h>
+#else
+__inline static int setmode(int a, int b)
+{
+ return 0;
+}
+#endif
+
+#ifndef __max
+ #define __max(a,b) (((a) > (b)) ? (a) : (b))
+#endif // __max
+
+#ifndef __min
+ #define __min(a,b) (((a) < (b)) ? (a) : (b))
+#endif // __min
+
+#define OAES_BUF_LEN_ENC 4096 - 2 * OAES_BLOCK_SIZE
+#define OAES_BUF_LEN_DEC 4096
+
+static void usage( const char * exe_name )
+{
+ if( NULL == exe_name )
+ return;
+
+ fprintf( stderr,
+ "Usage:\n"
+ " %s <command> --key <key_data> [options]\n"
+ "\n"
+ " command:\n"
+ " enc: encrypt\n"
+ " dec: decrypt\n"
+ "\n"
+ " options:\n"
+ " --ecb: use ecb mode instead of cbc\n"
+ " --in <path_in>\n"
+ " --out <path_out>\n"
+ "\n",
+ exe_name
+ );
+}
+
+int main(int argc, char** argv)
+{
+ size_t _i = 0, _j = 0;
+ OAES_CTX * ctx = NULL;
+ uint8_t _buf_in[OAES_BUF_LEN_DEC];
+ uint8_t *_buf_out = NULL, _key_data[32] = "";
+ size_t _buf_in_len = 0, _buf_out_len = 0, _read_len = 0;
+ size_t _key_data_len = 0;
+ short _is_ecb = 0;
+ char *_file_in = NULL, *_file_out = NULL;
+ int _op = 0;
+ FILE *_f_in = stdin, *_f_out = stdout;
+
+ fprintf( stderr, "\n"
+ "*******************************************************************************\n"
+ "* OpenAES %-10s *\n"
+ "* Copyright (c) 2012, Nabil S. Al Ramli, www.nalramli.com *\n"
+ "*******************************************************************************\n\n",
+ OAES_VERSION );
+
+ // pad the key
+ for( _j = 0; _j < 32; _j++ )
+ _key_data[_j] = _j + 1;
+
+ if( argc < 2 )
+ {
+ usage( argv[0] );
+ return EXIT_FAILURE;
+ }
+
+ if( 0 == strcmp( argv[1], "enc" ) )
+ {
+ _op = 0;
+ _read_len = OAES_BUF_LEN_ENC;
+ }
+ else if( 0 == strcmp( argv[1], "dec" ) )
+ {
+ _op = 1;
+ _read_len = OAES_BUF_LEN_DEC;
+ }
+ else
+ {
+ fprintf(stderr, "Error: Unknown command '%s'.", argv[1]);
+ usage( argv[0] );
+ return EXIT_FAILURE;
+ }
+
+ for( _i = 2; _i < argc; _i++ )
+ {
+ int _found = 0;
+
+ if( 0 == strcmp( argv[_i], "--ecb" ) )
+ {
+ _found = 1;
+ _is_ecb = 1;
+ }
+
+ if( 0 == strcmp( argv[_i], "--key" ) )
+ {
+ _found = 1;
+ _i++; // key_data
+ if( _i >= argc )
+ {
+ fprintf(stderr, "Error: No value specified for '%s'.\n",
+ "--key");
+ usage( argv[0] );
+ return EXIT_FAILURE;
+ }
+ _key_data_len = strlen(argv[_i]);
+ if( 16 >= _key_data_len )
+ _key_data_len = 16;
+ else if( 24 >= _key_data_len )
+ _key_data_len = 24;
+ else
+ _key_data_len = 32;
+ memcpy(_key_data, argv[_i], __min(32, strlen(argv[_i])));
+ }
+
+ if( 0 == strcmp( argv[_i], "--in" ) )
+ {
+ _found = 1;
+ _i++; // path_in
+ if( _i >= argc )
+ {
+ fprintf(stderr, "Error: No value specified for '%s'.\n",
+ "--in");
+ usage( argv[0] );
+ return EXIT_FAILURE;
+ }
+ _file_in = argv[_i];
+ }
+
+ if( 0 == strcmp( argv[_i], "--out" ) )
+ {
+ _found = 1;
+ _i++; // path_out
+ if( _i >= argc )
+ {
+ fprintf(stderr, "Error: No value specified for '%s'.\n",
+ "--out");
+ usage( argv[0] );
+ return EXIT_FAILURE;
+ }
+ _file_out = argv[_i];
+ }
+
+ if( 0 == _found )
+ {
+ fprintf(stderr, "Error: Invalid option '%s'.\n", argv[_i]);
+ usage( argv[0] );
+ return EXIT_FAILURE;
+ }
+ }
+
+ if( 0 == _key_data_len )
+ {
+ fprintf(stderr, "Error: --key must be specified.\n");
+ return EXIT_FAILURE;
+ }
+
+ if( _file_in )
+ {
+ _f_in = fopen(_file_in, "rb");
+ if( NULL == _f_in )
+ {
+ fprintf(stderr,
+ "Error: Failed to open '-%s' for reading.\n", _file_in);
+ return EXIT_FAILURE;
+ }
+ }
+ else
+ {
+ if( setmode(fileno(stdin), 0x8000) < 0 )
+ fprintf(stderr,"Error: Failed in setmode().\n");
+ _f_in = stdin;
+ }
+
+ if( _file_out )
+ {
+ _f_out = fopen(_file_out, "wb");
+ if( NULL == _f_out )
+ {
+ fprintf(stderr,
+ "Error: Failed to open '-%s' for writing.\n", _file_out);
+ if( _file_in )
+ fclose(_f_in);
+ return EXIT_FAILURE;
+ }
+ }
+ else
+ {
+ if( setmode(fileno(stdout), 0x8000) < 0 )
+ fprintf(stderr, "Error: Failed in setmode().\n");
+ _f_out = stdout;
+ }
+
+ ctx = oaes_alloc();
+ if( NULL == ctx )
+ {
+ fprintf(stderr, "Error: Failed to initialize OAES.\n");
+ if( _file_in )
+ fclose(_f_in);
+ if( _file_out )
+ fclose(_f_out);
+ return EXIT_FAILURE;
+ }
+ if( _is_ecb )
+ if( OAES_RET_SUCCESS != oaes_set_option( ctx, OAES_OPTION_ECB, NULL ) )
+ fprintf(stderr, "Error: Failed to set OAES options.\n");
+
+ oaes_key_import_data( ctx, _key_data, _key_data_len );
+
+ while( _buf_in_len =
+ fread(_buf_in, sizeof(uint8_t), _read_len, _f_in) )
+ {
+ switch(_op)
+ {
+ case 0:
+ if( OAES_RET_SUCCESS != oaes_encrypt( ctx,
+ _buf_in, _buf_in_len, NULL, &_buf_out_len ) )
+ fprintf( stderr,
+ "Error: Failed to retrieve required buffer size for "
+ "encryption.\n" );
+ _buf_out = (uint8_t *) calloc( _buf_out_len, sizeof( char ) );
+ if( NULL == _buf_out )
+ {
+ fprintf(stderr, "Error: Failed to allocate memory.\n" );
+ if( _file_in )
+ fclose(_f_in);
+ if( _file_out )
+ fclose(_f_out);
+ return EXIT_FAILURE;
+ }
+ if( OAES_RET_SUCCESS != oaes_encrypt( ctx,
+ _buf_in, _buf_in_len, _buf_out, &_buf_out_len ) )
+ fprintf(stderr, "Error: Encryption failed.\n");
+ fwrite(_buf_out, sizeof(uint8_t), _buf_out_len, _f_out);
+ free(_buf_out);
+ break;
+ case 1:
+ if( OAES_RET_SUCCESS != oaes_decrypt( ctx,
+ _buf_in, _buf_in_len, NULL, &_buf_out_len ) )
+ fprintf( stderr,
+ "Error: Failed to retrieve required buffer size for "
+ "encryption.\n" );
+ _buf_out = (uint8_t *) calloc( _buf_out_len, sizeof( char ) );
+ if( NULL == _buf_out )
+ {
+ fprintf(stderr, "Error: Failed to allocate memory.\n" );
+ free( _buf_out );
+ if( _file_in )
+ fclose(_f_in);
+ if( _file_out )
+ fclose(_f_out);
+ return EXIT_FAILURE;
+ }
+ if( OAES_RET_SUCCESS != oaes_decrypt( ctx,
+ _buf_in, _buf_in_len, _buf_out, &_buf_out_len ) )
+ fprintf(stderr, "Error: Decryption failed.\n");
+ fwrite(_buf_out, sizeof(uint8_t), _buf_out_len, _f_out);
+ free(_buf_out);
+ break;
+ default:
+ break;
+ }
+ }
+
+
+ if( OAES_RET_SUCCESS != oaes_free( &ctx ) )
+ fprintf(stderr, "Error: Failed to uninitialize OAES.\n");
+
+ if( _file_in )
+ fclose(_f_in);
+ if( _file_out )
+ fclose(_f_out);
+
+ return (EXIT_SUCCESS);
+}
diff --git a/openaes/src/oaes_lib.c b/openaes/src/oaes_lib.c
new file mode 100644
index 0000000..7cfdc1c
--- /dev/null
+++ b/openaes/src/oaes_lib.c
@@ -0,0 +1,1429 @@
+/*
+ * ---------------------------------------------------------------------------
+ * OpenAES License
+ * ---------------------------------------------------------------------------
+ * Copyright (c) 2012, Nabil S. Al Ramli, www.nalramli.com
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ * ---------------------------------------------------------------------------
+ */
+static const char _NR[] = {
+ 0x4e,0x61,0x62,0x69,0x6c,0x20,0x53,0x2e,0x20,
+ 0x41,0x6c,0x20,0x52,0x61,0x6d,0x6c,0x69,0x00 };
+
+#include <stddef.h>
+#include <time.h>
+#include <sys/timeb.h>
+#include <malloc.h>
+#include <string.h>
+
+#ifdef WIN32
+#include <process.h>
+#endif
+
+#include "oaes_config.h"
+#include "oaes_lib.h"
+
+#ifdef OAES_HAVE_ISAAC
+#include "rand.h"
+#endif // OAES_HAVE_ISAAC
+
+#define OAES_RKEY_LEN 4
+#define OAES_COL_LEN 4
+#define OAES_ROUND_BASE 7
+
+// the block is padded
+#define OAES_FLAG_PAD 0x01
+
+#ifndef min
+# define min(a,b) (((a)<(b)) ? (a) : (b))
+#endif /* min */
+
+typedef struct _oaes_key
+{
+ size_t data_len;
+ uint8_t *data;
+ size_t exp_data_len;
+ uint8_t *exp_data;
+ size_t num_keys;
+ size_t key_base;
+} oaes_key;
+
+typedef struct _oaes_ctx
+{
+#ifdef OAES_HAVE_ISAAC
+ randctx * rctx;
+#endif // OAES_HAVE_ISAAC
+
+#ifdef OAES_DEBUG
+ oaes_step_cb step_cb;
+#endif // OAES_DEBUG
+
+ oaes_key * key;
+ OAES_OPTION options;
+ uint8_t iv[OAES_BLOCK_SIZE];
+} oaes_ctx;
+
+// "OAES<8-bit header version><8-bit type><16-bit options><8-bit flags><56-bit reserved>"
+static uint8_t oaes_header[OAES_BLOCK_SIZE] = {
+ // 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, a, b, c, d, e, f,
+ /*0*/ 0x4f, 0x41, 0x45, 0x53, 0x01, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+};
+static uint8_t oaes_gf_8[] = {
+ 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36 };
+
+static uint8_t oaes_sub_byte_value[16][16] = {
+ // 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, a, b, c, d, e, f,
+ /*0*/ 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,
+ /*1*/ 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,
+ /*2*/ 0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
+ /*3*/ 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,
+ /*4*/ 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84,
+ /*5*/ 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
+ /*6*/ 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8,
+ /*7*/ 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2,
+ /*8*/ 0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
+ /*9*/ 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb,
+ /*a*/ 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,
+ /*b*/ 0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
+ /*c*/ 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a,
+ /*d*/ 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e,
+ /*e*/ 0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
+ /*f*/ 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16,
+};
+
+static uint8_t oaes_inv_sub_byte_value[16][16] = {
+ // 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, a, b, c, d, e, f,
+ /*0*/ 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb,
+ /*1*/ 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb,
+ /*2*/ 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,
+ /*3*/ 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25,
+ /*4*/ 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92,
+ /*5*/ 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,
+ /*6*/ 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06,
+ /*7*/ 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b,
+ /*8*/ 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,
+ /*9*/ 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e,
+ /*a*/ 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b,
+ /*b*/ 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,
+ /*c*/ 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f,
+ /*d*/ 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef,
+ /*e*/ 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,
+ /*f*/ 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d,
+};
+
+static uint8_t oaes_gf_mul_2[16][16] = {
+ // 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, a, b, c, d, e, f,
+ /*0*/ 0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e, 0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e,
+ /*1*/ 0x20, 0x22, 0x24, 0x26, 0x28, 0x2a, 0x2c, 0x2e, 0x30, 0x32, 0x34, 0x36, 0x38, 0x3a, 0x3c, 0x3e,
+ /*2*/ 0x40, 0x42, 0x44, 0x46, 0x48, 0x4a, 0x4c, 0x4e, 0x50, 0x52, 0x54, 0x56, 0x58, 0x5a, 0x5c, 0x5e,
+ /*3*/ 0x60, 0x62, 0x64, 0x66, 0x68, 0x6a, 0x6c, 0x6e, 0x70, 0x72, 0x74, 0x76, 0x78, 0x7a, 0x7c, 0x7e,
+ /*4*/ 0x80, 0x82, 0x84, 0x86, 0x88, 0x8a, 0x8c, 0x8e, 0x90, 0x92, 0x94, 0x96, 0x98, 0x9a, 0x9c, 0x9e,
+ /*5*/ 0xa0, 0xa2, 0xa4, 0xa6, 0xa8, 0xaa, 0xac, 0xae, 0xb0, 0xb2, 0xb4, 0xb6, 0xb8, 0xba, 0xbc, 0xbe,
+ /*6*/ 0xc0, 0xc2, 0xc4, 0xc6, 0xc8, 0xca, 0xcc, 0xce, 0xd0, 0xd2, 0xd4, 0xd6, 0xd8, 0xda, 0xdc, 0xde,
+ /*7*/ 0xe0, 0xe2, 0xe4, 0xe6, 0xe8, 0xea, 0xec, 0xee, 0xf0, 0xf2, 0xf4, 0xf6, 0xf8, 0xfa, 0xfc, 0xfe,
+ /*8*/ 0x1b, 0x19, 0x1f, 0x1d, 0x13, 0x11, 0x17, 0x15, 0x0b, 0x09, 0x0f, 0x0d, 0x03, 0x01, 0x07, 0x05,
+ /*9*/ 0x3b, 0x39, 0x3f, 0x3d, 0x33, 0x31, 0x37, 0x35, 0x2b, 0x29, 0x2f, 0x2d, 0x23, 0x21, 0x27, 0x25,
+ /*a*/ 0x5b, 0x59, 0x5f, 0x5d, 0x53, 0x51, 0x57, 0x55, 0x4b, 0x49, 0x4f, 0x4d, 0x43, 0x41, 0x47, 0x45,
+ /*b*/ 0x7b, 0x79, 0x7f, 0x7d, 0x73, 0x71, 0x77, 0x75, 0x6b, 0x69, 0x6f, 0x6d, 0x63, 0x61, 0x67, 0x65,
+ /*c*/ 0x9b, 0x99, 0x9f, 0x9d, 0x93, 0x91, 0x97, 0x95, 0x8b, 0x89, 0x8f, 0x8d, 0x83, 0x81, 0x87, 0x85,
+ /*d*/ 0xbb, 0xb9, 0xbf, 0xbd, 0xb3, 0xb1, 0xb7, 0xb5, 0xab, 0xa9, 0xaf, 0xad, 0xa3, 0xa1, 0xa7, 0xa5,
+ /*e*/ 0xdb, 0xd9, 0xdf, 0xdd, 0xd3, 0xd1, 0xd7, 0xd5, 0xcb, 0xc9, 0xcf, 0xcd, 0xc3, 0xc1, 0xc7, 0xc5,
+ /*f*/ 0xfb, 0xf9, 0xff, 0xfd, 0xf3, 0xf1, 0xf7, 0xf5, 0xeb, 0xe9, 0xef, 0xed, 0xe3, 0xe1, 0xe7, 0xe5,
+};
+
+static uint8_t oaes_gf_mul_3[16][16] = {
+ // 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, a, b, c, d, e, f,
+ /*0*/ 0x00, 0x03, 0x06, 0x05, 0x0c, 0x0f, 0x0a, 0x09, 0x18, 0x1b, 0x1e, 0x1d, 0x14, 0x17, 0x12, 0x11,
+ /*1*/ 0x30, 0x33, 0x36, 0x35, 0x3c, 0x3f, 0x3a, 0x39, 0x28, 0x2b, 0x2e, 0x2d, 0x24, 0x27, 0x22, 0x21,
+ /*2*/ 0x60, 0x63, 0x66, 0x65, 0x6c, 0x6f, 0x6a, 0x69, 0x78, 0x7b, 0x7e, 0x7d, 0x74, 0x77, 0x72, 0x71,
+ /*3*/ 0x50, 0x53, 0x56, 0x55, 0x5c, 0x5f, 0x5a, 0x59, 0x48, 0x4b, 0x4e, 0x4d, 0x44, 0x47, 0x42, 0x41,
+ /*4*/ 0xc0, 0xc3, 0xc6, 0xc5, 0xcc, 0xcf, 0xca, 0xc9, 0xd8, 0xdb, 0xde, 0xdd, 0xd4, 0xd7, 0xd2, 0xd1,
+ /*5*/ 0xf0, 0xf3, 0xf6, 0xf5, 0xfc, 0xff, 0xfa, 0xf9, 0xe8, 0xeb, 0xee, 0xed, 0xe4, 0xe7, 0xe2, 0xe1,
+ /*6*/ 0xa0, 0xa3, 0xa6, 0xa5, 0xac, 0xaf, 0xaa, 0xa9, 0xb8, 0xbb, 0xbe, 0xbd, 0xb4, 0xb7, 0xb2, 0xb1,
+ /*7*/ 0x90, 0x93, 0x96, 0x95, 0x9c, 0x9f, 0x9a, 0x99, 0x88, 0x8b, 0x8e, 0x8d, 0x84, 0x87, 0x82, 0x81,
+ /*8*/ 0x9b, 0x98, 0x9d, 0x9e, 0x97, 0x94, 0x91, 0x92, 0x83, 0x80, 0x85, 0x86, 0x8f, 0x8c, 0x89, 0x8a,
+ /*9*/ 0xab, 0xa8, 0xad, 0xae, 0xa7, 0xa4, 0xa1, 0xa2, 0xb3, 0xb0, 0xb5, 0xb6, 0xbf, 0xbc, 0xb9, 0xba,
+ /*a*/ 0xfb, 0xf8, 0xfd, 0xfe, 0xf7, 0xf4, 0xf1, 0xf2, 0xe3, 0xe0, 0xe5, 0xe6, 0xef, 0xec, 0xe9, 0xea,
+ /*b*/ 0xcb, 0xc8, 0xcd, 0xce, 0xc7, 0xc4, 0xc1, 0xc2, 0xd3, 0xd0, 0xd5, 0xd6, 0xdf, 0xdc, 0xd9, 0xda,
+ /*c*/ 0x5b, 0x58, 0x5d, 0x5e, 0x57, 0x54, 0x51, 0x52, 0x43, 0x40, 0x45, 0x46, 0x4f, 0x4c, 0x49, 0x4a,
+ /*d*/ 0x6b, 0x68, 0x6d, 0x6e, 0x67, 0x64, 0x61, 0x62, 0x73, 0x70, 0x75, 0x76, 0x7f, 0x7c, 0x79, 0x7a,
+ /*e*/ 0x3b, 0x38, 0x3d, 0x3e, 0x37, 0x34, 0x31, 0x32, 0x23, 0x20, 0x25, 0x26, 0x2f, 0x2c, 0x29, 0x2a,
+ /*f*/ 0x0b, 0x08, 0x0d, 0x0e, 0x07, 0x04, 0x01, 0x02, 0x13, 0x10, 0x15, 0x16, 0x1f, 0x1c, 0x19, 0x1a,
+};
+
+static uint8_t oaes_gf_mul_9[16][16] = {
+ // 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, a, b, c, d, e, f,
+ /*0*/ 0x00, 0x09, 0x12, 0x1b, 0x24, 0x2d, 0x36, 0x3f, 0x48, 0x41, 0x5a, 0x53, 0x6c, 0x65, 0x7e, 0x77,
+ /*1*/ 0x90, 0x99, 0x82, 0x8b, 0xb4, 0xbd, 0xa6, 0xaf, 0xd8, 0xd1, 0xca, 0xc3, 0xfc, 0xf5, 0xee, 0xe7,
+ /*2*/ 0x3b, 0x32, 0x29, 0x20, 0x1f, 0x16, 0x0d, 0x04, 0x73, 0x7a, 0x61, 0x68, 0x57, 0x5e, 0x45, 0x4c,
+ /*3*/ 0xab, 0xa2, 0xb9, 0xb0, 0x8f, 0x86, 0x9d, 0x94, 0xe3, 0xea, 0xf1, 0xf8, 0xc7, 0xce, 0xd5, 0xdc,
+ /*4*/ 0x76, 0x7f, 0x64, 0x6d, 0x52, 0x5b, 0x40, 0x49, 0x3e, 0x37, 0x2c, 0x25, 0x1a, 0x13, 0x08, 0x01,
+ /*5*/ 0xe6, 0xef, 0xf4, 0xfd, 0xc2, 0xcb, 0xd0, 0xd9, 0xae, 0xa7, 0xbc, 0xb5, 0x8a, 0x83, 0x98, 0x91,
+ /*6*/ 0x4d, 0x44, 0x5f, 0x56, 0x69, 0x60, 0x7b, 0x72, 0x05, 0x0c, 0x17, 0x1e, 0x21, 0x28, 0x33, 0x3a,
+ /*7*/ 0xdd, 0xd4, 0xcf, 0xc6, 0xf9, 0xf0, 0xeb, 0xe2, 0x95, 0x9c, 0x87, 0x8e, 0xb1, 0xb8, 0xa3, 0xaa,
+ /*8*/ 0xec, 0xe5, 0xfe, 0xf7, 0xc8, 0xc1, 0xda, 0xd3, 0xa4, 0xad, 0xb6, 0xbf, 0x80, 0x89, 0x92, 0x9b,
+ /*9*/ 0x7c, 0x75, 0x6e, 0x67, 0x58, 0x51, 0x4a, 0x43, 0x34, 0x3d, 0x26, 0x2f, 0x10, 0x19, 0x02, 0x0b,
+ /*a*/ 0xd7, 0xde, 0xc5, 0xcc, 0xf3, 0xfa, 0xe1, 0xe8, 0x9f, 0x96, 0x8d, 0x84, 0xbb, 0xb2, 0xa9, 0xa0,
+ /*b*/ 0x47, 0x4e, 0x55, 0x5c, 0x63, 0x6a, 0x71, 0x78, 0x0f, 0x06, 0x1d, 0x14, 0x2b, 0x22, 0x39, 0x30,
+ /*c*/ 0x9a, 0x93, 0x88, 0x81, 0xbe, 0xb7, 0xac, 0xa5, 0xd2, 0xdb, 0xc0, 0xc9, 0xf6, 0xff, 0xe4, 0xed,
+ /*d*/ 0x0a, 0x03, 0x18, 0x11, 0x2e, 0x27, 0x3c, 0x35, 0x42, 0x4b, 0x50, 0x59, 0x66, 0x6f, 0x74, 0x7d,
+ /*e*/ 0xa1, 0xa8, 0xb3, 0xba, 0x85, 0x8c, 0x97, 0x9e, 0xe9, 0xe0, 0xfb, 0xf2, 0xcd, 0xc4, 0xdf, 0xd6,
+ /*f*/ 0x31, 0x38, 0x23, 0x2a, 0x15, 0x1c, 0x07, 0x0e, 0x79, 0x70, 0x6b, 0x62, 0x5d, 0x54, 0x4f, 0x46,
+};
+
+static uint8_t oaes_gf_mul_b[16][16] = {
+ // 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, a, b, c, d, e, f,
+ /*0*/ 0x00, 0x0b, 0x16, 0x1d, 0x2c, 0x27, 0x3a, 0x31, 0x58, 0x53, 0x4e, 0x45, 0x74, 0x7f, 0x62, 0x69,
+ /*1*/ 0xb0, 0xbb, 0xa6, 0xad, 0x9c, 0x97, 0x8a, 0x81, 0xe8, 0xe3, 0xfe, 0xf5, 0xc4, 0xcf, 0xd2, 0xd9,
+ /*2*/ 0x7b, 0x70, 0x6d, 0x66, 0x57, 0x5c, 0x41, 0x4a, 0x23, 0x28, 0x35, 0x3e, 0x0f, 0x04, 0x19, 0x12,
+ /*3*/ 0xcb, 0xc0, 0xdd, 0xd6, 0xe7, 0xec, 0xf1, 0xfa, 0x93, 0x98, 0x85, 0x8e, 0xbf, 0xb4, 0xa9, 0xa2,
+ /*4*/ 0xf6, 0xfd, 0xe0, 0xeb, 0xda, 0xd1, 0xcc, 0xc7, 0xae, 0xa5, 0xb8, 0xb3, 0x82, 0x89, 0x94, 0x9f,
+ /*5*/ 0x46, 0x4d, 0x50, 0x5b, 0x6a, 0x61, 0x7c, 0x77, 0x1e, 0x15, 0x08, 0x03, 0x32, 0x39, 0x24, 0x2f,
+ /*6*/ 0x8d, 0x86, 0x9b, 0x90, 0xa1, 0xaa, 0xb7, 0xbc, 0xd5, 0xde, 0xc3, 0xc8, 0xf9, 0xf2, 0xef, 0xe4,
+ /*7*/ 0x3d, 0x36, 0x2b, 0x20, 0x11, 0x1a, 0x07, 0x0c, 0x65, 0x6e, 0x73, 0x78, 0x49, 0x42, 0x5f, 0x54,
+ /*8*/ 0xf7, 0xfc, 0xe1, 0xea, 0xdb, 0xd0, 0xcd, 0xc6, 0xaf, 0xa4, 0xb9, 0xb2, 0x83, 0x88, 0x95, 0x9e,
+ /*9*/ 0x47, 0x4c, 0x51, 0x5a, 0x6b, 0x60, 0x7d, 0x76, 0x1f, 0x14, 0x09, 0x02, 0x33, 0x38, 0x25, 0x2e,
+ /*a*/ 0x8c, 0x87, 0x9a, 0x91, 0xa0, 0xab, 0xb6, 0xbd, 0xd4, 0xdf, 0xc2, 0xc9, 0xf8, 0xf3, 0xee, 0xe5,
+ /*b*/ 0x3c, 0x37, 0x2a, 0x21, 0x10, 0x1b, 0x06, 0x0d, 0x64, 0x6f, 0x72, 0x79, 0x48, 0x43, 0x5e, 0x55,
+ /*c*/ 0x01, 0x0a, 0x17, 0x1c, 0x2d, 0x26, 0x3b, 0x30, 0x59, 0x52, 0x4f, 0x44, 0x75, 0x7e, 0x63, 0x68,
+ /*d*/ 0xb1, 0xba, 0xa7, 0xac, 0x9d, 0x96, 0x8b, 0x80, 0xe9, 0xe2, 0xff, 0xf4, 0xc5, 0xce, 0xd3, 0xd8,
+ /*e*/ 0x7a, 0x71, 0x6c, 0x67, 0x56, 0x5d, 0x40, 0x4b, 0x22, 0x29, 0x34, 0x3f, 0x0e, 0x05, 0x18, 0x13,
+ /*f*/ 0xca, 0xc1, 0xdc, 0xd7, 0xe6, 0xed, 0xf0, 0xfb, 0x92, 0x99, 0x84, 0x8f, 0xbe, 0xb5, 0xa8, 0xa3,
+};
+
+static uint8_t oaes_gf_mul_d[16][16] = {
+ // 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, a, b, c, d, e, f,
+ /*0*/ 0x00, 0x0d, 0x1a, 0x17, 0x34, 0x39, 0x2e, 0x23, 0x68, 0x65, 0x72, 0x7f, 0x5c, 0x51, 0x46, 0x4b,
+ /*1*/ 0xd0, 0xdd, 0xca, 0xc7, 0xe4, 0xe9, 0xfe, 0xf3, 0xb8, 0xb5, 0xa2, 0xaf, 0x8c, 0x81, 0x96, 0x9b,
+ /*2*/ 0xbb, 0xb6, 0xa1, 0xac, 0x8f, 0x82, 0x95, 0x98, 0xd3, 0xde, 0xc9, 0xc4, 0xe7, 0xea, 0xfd, 0xf0,
+ /*3*/ 0x6b, 0x66, 0x71, 0x7c, 0x5f, 0x52, 0x45, 0x48, 0x03, 0x0e, 0x19, 0x14, 0x37, 0x3a, 0x2d, 0x20,
+ /*4*/ 0x6d, 0x60, 0x77, 0x7a, 0x59, 0x54, 0x43, 0x4e, 0x05, 0x08, 0x1f, 0x12, 0x31, 0x3c, 0x2b, 0x26,
+ /*5*/ 0xbd, 0xb0, 0xa7, 0xaa, 0x89, 0x84, 0x93, 0x9e, 0xd5, 0xd8, 0xcf, 0xc2, 0xe1, 0xec, 0xfb, 0xf6,
+ /*6*/ 0xd6, 0xdb, 0xcc, 0xc1, 0xe2, 0xef, 0xf8, 0xf5, 0xbe, 0xb3, 0xa4, 0xa9, 0x8a, 0x87, 0x90, 0x9d,
+ /*7*/ 0x06, 0x0b, 0x1c, 0x11, 0x32, 0x3f, 0x28, 0x25, 0x6e, 0x63, 0x74, 0x79, 0x5a, 0x57, 0x40, 0x4d,
+ /*8*/ 0xda, 0xd7, 0xc0, 0xcd, 0xee, 0xe3, 0xf4, 0xf9, 0xb2, 0xbf, 0xa8, 0xa5, 0x86, 0x8b, 0x9c, 0x91,
+ /*9*/ 0x0a, 0x07, 0x10, 0x1d, 0x3e, 0x33, 0x24, 0x29, 0x62, 0x6f, 0x78, 0x75, 0x56, 0x5b, 0x4c, 0x41,
+ /*a*/ 0x61, 0x6c, 0x7b, 0x76, 0x55, 0x58, 0x4f, 0x42, 0x09, 0x04, 0x13, 0x1e, 0x3d, 0x30, 0x27, 0x2a,
+ /*b*/ 0xb1, 0xbc, 0xab, 0xa6, 0x85, 0x88, 0x9f, 0x92, 0xd9, 0xd4, 0xc3, 0xce, 0xed, 0xe0, 0xf7, 0xfa,
+ /*c*/ 0xb7, 0xba, 0xad, 0xa0, 0x83, 0x8e, 0x99, 0x94, 0xdf, 0xd2, 0xc5, 0xc8, 0xeb, 0xe6, 0xf1, 0xfc,
+ /*d*/ 0x67, 0x6a, 0x7d, 0x70, 0x53, 0x5e, 0x49, 0x44, 0x0f, 0x02, 0x15, 0x18, 0x3b, 0x36, 0x21, 0x2c,
+ /*e*/ 0x0c, 0x01, 0x16, 0x1b, 0x38, 0x35, 0x22, 0x2f, 0x64, 0x69, 0x7e, 0x73, 0x50, 0x5d, 0x4a, 0x47,
+ /*f*/ 0xdc, 0xd1, 0xc6, 0xcb, 0xe8, 0xe5, 0xf2, 0xff, 0xb4, 0xb9, 0xae, 0xa3, 0x80, 0x8d, 0x9a, 0x97,
+};
+
+static uint8_t oaes_gf_mul_e[16][16] = {
+ // 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, a, b, c, d, e, f,
+ /*0*/ 0x00, 0x0e, 0x1c, 0x12, 0x38, 0x36, 0x24, 0x2a, 0x70, 0x7e, 0x6c, 0x62, 0x48, 0x46, 0x54, 0x5a,
+ /*1*/ 0xe0, 0xee, 0xfc, 0xf2, 0xd8, 0xd6, 0xc4, 0xca, 0x90, 0x9e, 0x8c, 0x82, 0xa8, 0xa6, 0xb4, 0xba,
+ /*2*/ 0xdb, 0xd5, 0xc7, 0xc9, 0xe3, 0xed, 0xff, 0xf1, 0xab, 0xa5, 0xb7, 0xb9, 0x93, 0x9d, 0x8f, 0x81,
+ /*3*/ 0x3b, 0x35, 0x27, 0x29, 0x03, 0x0d, 0x1f, 0x11, 0x4b, 0x45, 0x57, 0x59, 0x73, 0x7d, 0x6f, 0x61,
+ /*4*/ 0xad, 0xa3, 0xb1, 0xbf, 0x95, 0x9b, 0x89, 0x87, 0xdd, 0xd3, 0xc1, 0xcf, 0xe5, 0xeb, 0xf9, 0xf7,
+ /*5*/ 0x4d, 0x43, 0x51, 0x5f, 0x75, 0x7b, 0x69, 0x67, 0x3d, 0x33, 0x21, 0x2f, 0x05, 0x0b, 0x19, 0x17,
+ /*6*/ 0x76, 0x78, 0x6a, 0x64, 0x4e, 0x40, 0x52, 0x5c, 0x06, 0x08, 0x1a, 0x14, 0x3e, 0x30, 0x22, 0x2c,
+ /*7*/ 0x96, 0x98, 0x8a, 0x84, 0xae, 0xa0, 0xb2, 0xbc, 0xe6, 0xe8, 0xfa, 0xf4, 0xde, 0xd0, 0xc2, 0xcc,
+ /*8*/ 0x41, 0x4f, 0x5d, 0x53, 0x79, 0x77, 0x65, 0x6b, 0x31, 0x3f, 0x2d, 0x23, 0x09, 0x07, 0x15, 0x1b,
+ /*9*/ 0xa1, 0xaf, 0xbd, 0xb3, 0x99, 0x97, 0x85, 0x8b, 0xd1, 0xdf, 0xcd, 0xc3, 0xe9, 0xe7, 0xf5, 0xfb,
+ /*a*/ 0x9a, 0x94, 0x86, 0x88, 0xa2, 0xac, 0xbe, 0xb0, 0xea, 0xe4, 0xf6, 0xf8, 0xd2, 0xdc, 0xce, 0xc0,
+ /*b*/ 0x7a, 0x74, 0x66, 0x68, 0x42, 0x4c, 0x5e, 0x50, 0x0a, 0x04, 0x16, 0x18, 0x32, 0x3c, 0x2e, 0x20,
+ /*c*/ 0xec, 0xe2, 0xf0, 0xfe, 0xd4, 0xda, 0xc8, 0xc6, 0x9c, 0x92, 0x80, 0x8e, 0xa4, 0xaa, 0xb8, 0xb6,
+ /*d*/ 0x0c, 0x02, 0x10, 0x1e, 0x34, 0x3a, 0x28, 0x26, 0x7c, 0x72, 0x60, 0x6e, 0x44, 0x4a, 0x58, 0x56,
+ /*e*/ 0x37, 0x39, 0x2b, 0x25, 0x0f, 0x01, 0x13, 0x1d, 0x47, 0x49, 0x5b, 0x55, 0x7f, 0x71, 0x63, 0x6d,
+ /*f*/ 0xd7, 0xd9, 0xcb, 0xc5, 0xef, 0xe1, 0xf3, 0xfd, 0xa7, 0xa9, 0xbb, 0xb5, 0x9f, 0x91, 0x83, 0x8d,
+};
+
+static OAES_RET oaes_sub_byte( uint8_t * byte )
+{
+ size_t _x, _y;
+
+ if( NULL == byte )
+ return OAES_RET_ARG1;
+
+ _x = _y = *byte;
+ _x &= 0x0f;
+ _y &= 0xf0;
+ _y >>= 4;
+ *byte = oaes_sub_byte_value[_y][_x];
+
+ return OAES_RET_SUCCESS;
+}
+
+static OAES_RET oaes_inv_sub_byte( uint8_t * byte )
+{
+ size_t _x, _y;
+
+ if( NULL == byte )
+ return OAES_RET_ARG1;
+
+ _x = _y = *byte;
+ _x &= 0x0f;
+ _y &= 0xf0;
+ _y >>= 4;
+ *byte = oaes_inv_sub_byte_value[_y][_x];
+
+ return OAES_RET_SUCCESS;
+}
+
+static OAES_RET oaes_word_rot_right( uint8_t word[OAES_COL_LEN] )
+{
+ uint8_t _temp[OAES_COL_LEN];
+
+ if( NULL == word )
+ return OAES_RET_ARG1;
+
+ memcpy( _temp + 1, word, OAES_COL_LEN - 1 );
+ _temp[0] = word[OAES_COL_LEN - 1];
+ memcpy( word, _temp, OAES_COL_LEN );
+
+ return OAES_RET_SUCCESS;
+}
+
+static OAES_RET oaes_word_rot_left( uint8_t word[OAES_COL_LEN] )
+{
+ uint8_t _temp[OAES_COL_LEN];
+
+ if( NULL == word )
+ return OAES_RET_ARG1;
+
+ memcpy( _temp, word + 1, OAES_COL_LEN - 1 );
+ _temp[OAES_COL_LEN - 1] = word[0];
+ memcpy( word, _temp, OAES_COL_LEN );
+
+ return OAES_RET_SUCCESS;
+}
+
+static OAES_RET oaes_shift_rows( uint8_t block[OAES_BLOCK_SIZE] )
+{
+ uint8_t _temp[OAES_BLOCK_SIZE];
+
+ if( NULL == block )
+ return OAES_RET_ARG1;
+
+ _temp[0x00] = block[0x00];
+ _temp[0x01] = block[0x05];
+ _temp[0x02] = block[0x0a];
+ _temp[0x03] = block[0x0f];
+ _temp[0x04] = block[0x04];
+ _temp[0x05] = block[0x09];
+ _temp[0x06] = block[0x0e];
+ _temp[0x07] = block[0x03];
+ _temp[0x08] = block[0x08];
+ _temp[0x09] = block[0x0d];
+ _temp[0x0a] = block[0x02];
+ _temp[0x0b] = block[0x07];
+ _temp[0x0c] = block[0x0c];
+ _temp[0x0d] = block[0x01];
+ _temp[0x0e] = block[0x06];
+ _temp[0x0f] = block[0x0b];
+ memcpy( block, _temp, OAES_BLOCK_SIZE );
+
+ return OAES_RET_SUCCESS;
+}
+
+static OAES_RET oaes_inv_shift_rows( uint8_t block[OAES_BLOCK_SIZE] )
+{
+ uint8_t _temp[OAES_BLOCK_SIZE];
+
+ if( NULL == block )
+ return OAES_RET_ARG1;
+
+ _temp[0x00] = block[0x00];
+ _temp[0x01] = block[0x0d];
+ _temp[0x02] = block[0x0a];
+ _temp[0x03] = block[0x07];
+ _temp[0x04] = block[0x04];
+ _temp[0x05] = block[0x01];
+ _temp[0x06] = block[0x0e];
+ _temp[0x07] = block[0x0b];
+ _temp[0x08] = block[0x08];
+ _temp[0x09] = block[0x05];
+ _temp[0x0a] = block[0x02];
+ _temp[0x0b] = block[0x0f];
+ _temp[0x0c] = block[0x0c];
+ _temp[0x0d] = block[0x09];
+ _temp[0x0e] = block[0x06];
+ _temp[0x0f] = block[0x03];
+ memcpy( block, _temp, OAES_BLOCK_SIZE );
+
+ return OAES_RET_SUCCESS;
+}
+
+static uint8_t oaes_gf_mul(uint8_t left, uint8_t right)
+{
+ size_t _x, _y;
+
+ _x = _y = left;
+ _x &= 0x0f;
+ _y &= 0xf0;
+ _y >>= 4;
+
+ switch( right )
+ {
+ case 0x02:
+ return oaes_gf_mul_2[_y][_x];
+ break;
+ case 0x03:
+ return oaes_gf_mul_3[_y][_x];
+ break;
+ case 0x09:
+ return oaes_gf_mul_9[_y][_x];
+ break;
+ case 0x0b:
+ return oaes_gf_mul_b[_y][_x];
+ break;
+ case 0x0d:
+ return oaes_gf_mul_d[_y][_x];
+ break;
+ case 0x0e:
+ return oaes_gf_mul_e[_y][_x];
+ break;
+ default:
+ return left;
+ break;
+ }
+}
+
+static OAES_RET oaes_mix_cols( uint8_t word[OAES_COL_LEN] )
+{
+ uint8_t _temp[OAES_COL_LEN];
+
+ if( NULL == word )
+ return OAES_RET_ARG1;
+
+ _temp[0] = oaes_gf_mul(word[0], 0x02) ^ oaes_gf_mul( word[1], 0x03 ) ^
+ word[2] ^ word[3];
+ _temp[1] = word[0] ^ oaes_gf_mul( word[1], 0x02 ) ^
+ oaes_gf_mul( word[2], 0x03 ) ^ word[3];
+ _temp[2] = word[0] ^ word[1] ^
+ oaes_gf_mul( word[2], 0x02 ) ^ oaes_gf_mul( word[3], 0x03 );
+ _temp[3] = oaes_gf_mul( word[0], 0x03 ) ^ word[1] ^
+ word[2] ^ oaes_gf_mul( word[3], 0x02 );
+ memcpy( word, _temp, OAES_COL_LEN );
+
+ return OAES_RET_SUCCESS;
+}
+
+static OAES_RET oaes_inv_mix_cols( uint8_t word[OAES_COL_LEN] )
+{
+ uint8_t _temp[OAES_COL_LEN];
+
+ if( NULL == word )
+ return OAES_RET_ARG1;
+
+ _temp[0] = oaes_gf_mul( word[0], 0x0e ) ^ oaes_gf_mul( word[1], 0x0b ) ^
+ oaes_gf_mul( word[2], 0x0d ) ^ oaes_gf_mul( word[3], 0x09 );
+ _temp[1] = oaes_gf_mul( word[0], 0x09 ) ^ oaes_gf_mul( word[1], 0x0e ) ^
+ oaes_gf_mul( word[2], 0x0b ) ^ oaes_gf_mul( word[3], 0x0d );
+ _temp[2] = oaes_gf_mul( word[0], 0x0d ) ^ oaes_gf_mul( word[1], 0x09 ) ^
+ oaes_gf_mul( word[2], 0x0e ) ^ oaes_gf_mul( word[3], 0x0b );
+ _temp[3] = oaes_gf_mul( word[0], 0x0b ) ^ oaes_gf_mul( word[1], 0x0d ) ^
+ oaes_gf_mul( word[2], 0x09 ) ^ oaes_gf_mul( word[3], 0x0e );
+ memcpy( word, _temp, OAES_COL_LEN );
+
+ return OAES_RET_SUCCESS;
+}
+
+OAES_RET oaes_sprintf(
+ char * buf, size_t * buf_len, const uint8_t * data, size_t data_len )
+{
+ size_t _i, _buf_len_in;
+ char _temp[4];
+
+ if( NULL == buf_len )
+ return OAES_RET_ARG2;
+
+ _buf_len_in = *buf_len;
+ *buf_len = data_len * 3 + data_len / OAES_BLOCK_SIZE + 1;
+
+ if( NULL == buf )
+ return OAES_RET_SUCCESS;
+
+ if( *buf_len > _buf_len_in )
+ return OAES_RET_BUF;
+
+ if( NULL == data )
+ return OAES_RET_ARG3;
+
+ strcpy( buf, "" );
+
+ for( _i = 0; _i < data_len; _i++ )
+ {
+ sprintf( _temp, "%02x ", data[_i] );
+ strcat( buf, _temp );
+ if( _i && 0 == ( _i + 1 ) % OAES_BLOCK_SIZE )
+ strcat( buf, "\n" );
+ }
+
+ return OAES_RET_SUCCESS;
+}
+
+#ifdef OAES_HAVE_ISAAC
+static void oaes_get_seed( char buf[RANDSIZ + 1] )
+{
+ struct timeb timer;
+ struct tm *gmTimer;
+ char * _test = NULL;
+
+ ftime (&timer);
+ gmTimer = gmtime( &timer.time );
+ _test = (char *) calloc( sizeof( char ), timer.millitm );
+ sprintf( buf, "%04d%02d%02d%02d%02d%02d%03d%p%d",
+ gmTimer->tm_year + 1900, gmTimer->tm_mon + 1, gmTimer->tm_mday,
+ gmTimer->tm_hour, gmTimer->tm_min, gmTimer->tm_sec, timer.millitm,
+ _test + timer.millitm, getpid() );
+
+ if( _test )
+ free( _test );
+}
+#else
+static uint32_t oaes_get_seed()
+{
+ struct timeb timer;
+ struct tm *gmTimer;
+ char * _test = NULL;
+ uint32_t _ret = 0;
+
+ ftime (&timer);
+ gmTimer = gmtime( &timer.time );
+ _test = (char *) calloc( sizeof( char ), timer.millitm );
+ _ret = gmTimer->tm_year + 1900 + gmTimer->tm_mon + 1 + gmTimer->tm_mday +
+ gmTimer->tm_hour + gmTimer->tm_min + gmTimer->tm_sec + timer.millitm +
+ (uint32_t) ( _test + timer.millitm ) + getpid();
+
+ if( _test )
+ free( _test );
+
+ return _ret;
+}
+#endif // OAES_HAVE_ISAAC
+
+static OAES_RET oaes_key_destroy( oaes_key ** key )
+{
+ if( NULL == *key )
+ return OAES_RET_SUCCESS;
+
+ if( (*key)->data )
+ {
+ free( (*key)->data );
+ (*key)->data = NULL;
+ }
+
+ if( (*key)->exp_data )
+ {
+ free( (*key)->exp_data );
+ (*key)->exp_data = NULL;
+ }
+
+ (*key)->data_len = 0;
+ (*key)->exp_data_len = 0;
+ (*key)->num_keys = 0;
+ (*key)->key_base = 0;
+ free( *key );
+ *key = NULL;
+
+ return OAES_RET_SUCCESS;
+}
+
+static OAES_RET oaes_key_expand( OAES_CTX * ctx )
+{
+ size_t _i, _j;
+ oaes_ctx * _ctx = (oaes_ctx *) ctx;
+
+ if( NULL == _ctx )
+ return OAES_RET_ARG1;
+
+ if( NULL == _ctx->key )
+ return OAES_RET_NOKEY;
+
+ _ctx->key->key_base = _ctx->key->data_len / OAES_RKEY_LEN;
+ _ctx->key->num_keys = _ctx->key->key_base + OAES_ROUND_BASE;
+
+ _ctx->key->exp_data_len = _ctx->key->num_keys * OAES_RKEY_LEN * OAES_COL_LEN;
+ _ctx->key->exp_data = (uint8_t *)
+ calloc( _ctx->key->exp_data_len, sizeof( uint8_t ));
+
+ if( NULL == _ctx->key->exp_data )
+ return OAES_RET_MEM;
+
+ // the first _ctx->key->data_len are a direct copy
+ memcpy( _ctx->key->exp_data, _ctx->key->data, _ctx->key->data_len );
+
+ // apply ExpandKey algorithm for remainder
+ for( _i = _ctx->key->key_base; _i < _ctx->key->num_keys * OAES_RKEY_LEN; _i++ )
+ {
+ uint8_t _temp[OAES_COL_LEN];
+
+ memcpy( _temp,
+ _ctx->key->exp_data + ( _i - 1 ) * OAES_RKEY_LEN, OAES_COL_LEN );
+
+ // transform key column
+ if( 0 == _i % _ctx->key->key_base )
+ {
+ oaes_word_rot_left( _temp );
+
+ for( _j = 0; _j < OAES_COL_LEN; _j++ )
+ oaes_sub_byte( _temp + _j );
+
+ _temp[0] = _temp[0] ^ oaes_gf_8[ _i / _ctx->key->key_base - 1 ];
+ }
+ else if( _ctx->key->key_base > 6 && 4 == _i % _ctx->key->key_base )
+ {
+ for( _j = 0; _j < OAES_COL_LEN; _j++ )
+ oaes_sub_byte( _temp + _j );
+ }
+
+ for( _j = 0; _j < OAES_COL_LEN; _j++ )
+ {
+ _ctx->key->exp_data[ _i * OAES_RKEY_LEN + _j ] =
+ _ctx->key->exp_data[ ( _i - _ctx->key->key_base ) *
+ OAES_RKEY_LEN + _j ] ^ _temp[_j];
+ }
+ }
+
+ return OAES_RET_SUCCESS;
+}
+
+static OAES_RET oaes_key_gen( OAES_CTX * ctx, size_t key_size )
+{
+ size_t _i;
+ oaes_key * _key = NULL;
+ oaes_ctx * _ctx = (oaes_ctx *) ctx;
+ OAES_RET _rc = OAES_RET_SUCCESS;
+
+ if( NULL == _ctx )
+ return OAES_RET_ARG1;
+
+ _key = (oaes_key *) calloc( sizeof( oaes_key ), 1 );
+
+ if( NULL == _key )
+ return OAES_RET_MEM;
+
+ if( _ctx->key )
+ oaes_key_destroy( &(_ctx->key) );
+
+ _key->data_len = key_size;
+ _key->data = (uint8_t *) calloc( key_size, sizeof( uint8_t ));
+
+ if( NULL == _key->data )
+ return OAES_RET_MEM;
+
+ for( _i = 0; _i < key_size; _i++ )
+#ifdef OAES_HAVE_ISAAC
+ _key->data[_i] = (uint8_t) rand( _ctx->rctx );
+#else
+ _key->data[_i] = (uint8_t) rand();
+#endif // OAES_HAVE_ISAAC
+
+ _ctx->key = _key;
+ _rc = _rc || oaes_key_expand( ctx );
+
+ if( _rc != OAES_RET_SUCCESS )
+ {
+ oaes_key_destroy( &(_ctx->key) );
+ return _rc;
+ }
+
+ return OAES_RET_SUCCESS;
+}
+
+OAES_RET oaes_key_gen_128( OAES_CTX * ctx )
+{
+ return oaes_key_gen( ctx, 16 );
+}
+
+OAES_RET oaes_key_gen_192( OAES_CTX * ctx )
+{
+ return oaes_key_gen( ctx, 24 );
+}
+
+OAES_RET oaes_key_gen_256( OAES_CTX * ctx )
+{
+ return oaes_key_gen( ctx, 32 );
+}
+
+OAES_RET oaes_key_export( OAES_CTX * ctx,
+ uint8_t * data, size_t * data_len )
+{
+ size_t _data_len_in;
+ oaes_ctx * _ctx = (oaes_ctx *) ctx;
+
+ if( NULL == _ctx )
+ return OAES_RET_ARG1;
+
+ if( NULL == _ctx->key )
+ return OAES_RET_NOKEY;
+
+ if( NULL == data_len )
+ return OAES_RET_ARG3;
+
+ _data_len_in = *data_len;
+ // data + header
+ *data_len = _ctx->key->data_len + OAES_BLOCK_SIZE;
+
+ if( NULL == data )
+ return OAES_RET_SUCCESS;
+
+ if( _data_len_in < *data_len )
+ return OAES_RET_BUF;
+
+ // header
+ memcpy( data, oaes_header, OAES_BLOCK_SIZE );
+ data[5] = 0x01;
+ data[7] = _ctx->key->data_len;
+ memcpy( data + OAES_BLOCK_SIZE, _ctx->key->data, _ctx->key->data_len );
+
+ return OAES_RET_SUCCESS;
+}
+
+OAES_RET oaes_key_export_data( OAES_CTX * ctx,
+ uint8_t * data, size_t * data_len )
+{
+ size_t _data_len_in;
+ oaes_ctx * _ctx = (oaes_ctx *) ctx;
+
+ if( NULL == _ctx )
+ return OAES_RET_ARG1;
+
+ if( NULL == _ctx->key )
+ return OAES_RET_NOKEY;
+
+ if( NULL == data_len )
+ return OAES_RET_ARG3;
+
+ _data_len_in = *data_len;
+ *data_len = _ctx->key->data_len;
+
+ if( NULL == data )
+ return OAES_RET_SUCCESS;
+
+ if( _data_len_in < *data_len )
+ return OAES_RET_BUF;
+
+ memcpy( data, _ctx->key->data, *data_len );
+
+ return OAES_RET_SUCCESS;
+}
+
+OAES_RET oaes_key_import( OAES_CTX * ctx,
+ const uint8_t * data, size_t data_len )
+{
+ oaes_ctx * _ctx = (oaes_ctx *) ctx;
+ OAES_RET _rc = OAES_RET_SUCCESS;
+ int _key_length;
+
+ if( NULL == _ctx )
+ return OAES_RET_ARG1;
+
+ if( NULL == data )
+ return OAES_RET_ARG2;
+
+ switch( data_len )
+ {
+ case 16 + OAES_BLOCK_SIZE:
+ case 24 + OAES_BLOCK_SIZE:
+ case 32 + OAES_BLOCK_SIZE:
+ break;
+ default:
+ return OAES_RET_ARG3;
+ }
+
+ // header
+ if( 0 != memcmp( data, oaes_header, 4 ) )
+ return OAES_RET_HEADER;
+
+ // header version
+ switch( data[4] )
+ {
+ case 0x01:
+ break;
+ default:
+ return OAES_RET_HEADER;
+ }
+
+ // header type
+ switch( data[5] )
+ {
+ case 0x01:
+ break;
+ default:
+ return OAES_RET_HEADER;
+ }
+
+ // options
+ _key_length = data[7];
+ switch( _key_length )
+ {
+ case 16:
+ case 24:
+ case 32:
+ break;
+ default:
+ return OAES_RET_HEADER;
+ }
+
+ if( data_len != _key_length + OAES_BLOCK_SIZE )
+ return OAES_RET_ARG3;
+
+ if( _ctx->key )
+ oaes_key_destroy( &(_ctx->key) );
+
+ _ctx->key = (oaes_key *) calloc( sizeof( oaes_key ), 1 );
+
+ if( NULL == _ctx->key )
+ return OAES_RET_MEM;
+
+ _ctx->key->data_len = _key_length;
+ _ctx->key->data = (uint8_t *)
+ calloc( _key_length, sizeof( uint8_t ));
+
+ if( NULL == _ctx->key->data )
+ {
+ oaes_key_destroy( &(_ctx->key) );
+ return OAES_RET_MEM;
+ }
+
+ memcpy( _ctx->key->data, data + OAES_BLOCK_SIZE, _key_length );
+ _rc = _rc || oaes_key_expand( ctx );
+
+ if( _rc != OAES_RET_SUCCESS )
+ {
+ oaes_key_destroy( &(_ctx->key) );
+ return _rc;
+ }
+
+ return OAES_RET_SUCCESS;
+}
+
+OAES_RET oaes_key_import_data( OAES_CTX * ctx,
+ const uint8_t * data, size_t data_len )
+{
+ oaes_ctx * _ctx = (oaes_ctx *) ctx;
+ OAES_RET _rc = OAES_RET_SUCCESS;
+
+ if( NULL == _ctx )
+ return OAES_RET_ARG1;
+
+ if( NULL == data )
+ return OAES_RET_ARG2;
+
+ switch( data_len )
+ {
+ case 16:
+ case 24:
+ case 32:
+ break;
+ default:
+ return OAES_RET_ARG3;
+ }
+
+ if( _ctx->key )
+ oaes_key_destroy( &(_ctx->key) );
+
+ _ctx->key = (oaes_key *) calloc( sizeof( oaes_key ), 1 );
+
+ if( NULL == _ctx->key )
+ return OAES_RET_MEM;
+
+ _ctx->key->data_len = data_len;
+ _ctx->key->data = (uint8_t *)
+ calloc( data_len, sizeof( uint8_t ));
+
+ if( NULL == _ctx->key->data )
+ {
+ oaes_key_destroy( &(_ctx->key) );
+ return OAES_RET_MEM;
+ }
+
+ memcpy( _ctx->key->data, data, data_len );
+ _rc = _rc || oaes_key_expand( ctx );
+
+ if( _rc != OAES_RET_SUCCESS )
+ {
+ oaes_key_destroy( &(_ctx->key) );
+ return _rc;
+ }
+
+ return OAES_RET_SUCCESS;
+}
+
+OAES_CTX * oaes_alloc()
+{
+ oaes_ctx * _ctx = (oaes_ctx *) calloc( sizeof( oaes_ctx ), 1 );
+
+ if( NULL == _ctx )
+ return NULL;
+
+#ifdef OAES_HAVE_ISAAC
+ {
+ ub4 _i = 0;
+ char _seed[RANDSIZ + 1];
+
+ _ctx->rctx = (randctx *) calloc( sizeof( randctx ), 1 );
+
+ if( NULL == _ctx->rctx )
+ {
+ free( _ctx );
+ return NULL;
+ }
+
+ oaes_get_seed( _seed );
+ memset( _ctx->rctx->randrsl, 0, RANDSIZ );
+ memcpy( _ctx->rctx->randrsl, _seed, RANDSIZ );
+ randinit( _ctx->rctx, TRUE);
+ }
+#else
+ srand( oaes_get_seed() );
+#endif // OAES_HAVE_ISAAC
+
+ _ctx->key = NULL;
+ oaes_set_option( _ctx, OAES_OPTION_CBC, NULL );
+
+#ifdef OAES_DEBUG
+ _ctx->step_cb = NULL;
+ oaes_set_option( _ctx, OAES_OPTION_STEP_OFF, NULL );
+#endif // OAES_DEBUG
+
+ return (OAES_CTX *) _ctx;
+}
+
+OAES_RET oaes_free( OAES_CTX ** ctx )
+{
+ oaes_ctx ** _ctx = (oaes_ctx **) ctx;
+
+ if( NULL == _ctx )
+ return OAES_RET_ARG1;
+
+ if( NULL == *_ctx )
+ return OAES_RET_SUCCESS;
+
+ if( (*_ctx)->key )
+ oaes_key_destroy( &((*_ctx)->key) );
+
+#ifdef OAES_HAVE_ISAAC
+ if( (*_ctx)->rctx )
+ {
+ free( (*_ctx)->rctx );
+ (*_ctx)->rctx = NULL;
+ }
+#endif // OAES_HAVE_ISAAC
+
+ free( *_ctx );
+ *_ctx = NULL;
+
+ return OAES_RET_SUCCESS;
+}
+
+OAES_RET oaes_set_option( OAES_CTX * ctx,
+ OAES_OPTION option, const void * value )
+{
+ size_t _i;
+ oaes_ctx * _ctx = (oaes_ctx *) ctx;
+
+ if( NULL == _ctx )
+ return OAES_RET_ARG1;
+
+ switch( option )
+ {
+ case OAES_OPTION_ECB:
+ _ctx->options &= ~OAES_OPTION_CBC;
+ memset( _ctx->iv, 0, OAES_BLOCK_SIZE );
+ break;
+
+ case OAES_OPTION_CBC:
+ _ctx->options &= ~OAES_OPTION_ECB;
+ if( value )
+ memcpy( _ctx->iv, value, OAES_BLOCK_SIZE );
+ else
+ {
+ for( _i = 0; _i < OAES_BLOCK_SIZE; _i++ )
+#ifdef OAES_HAVE_ISAAC
+ _ctx->iv[_i] = (uint8_t) rand( _ctx->rctx );
+#else
+ _ctx->iv[_i] = (uint8_t) rand();
+#endif // OAES_HAVE_ISAAC
+ }
+ break;
+
+#ifdef OAES_DEBUG
+
+ case OAES_OPTION_STEP_ON:
+ if( value )
+ {
+ _ctx->options &= ~OAES_OPTION_STEP_OFF;
+ _ctx->step_cb = value;
+ }
+ else
+ {
+ _ctx->options &= ~OAES_OPTION_STEP_ON;
+ _ctx->options |= OAES_OPTION_STEP_OFF;
+ _ctx->step_cb = NULL;
+ return OAES_RET_ARG3;
+ }
+ break;
+
+ case OAES_OPTION_STEP_OFF:
+ _ctx->options &= ~OAES_OPTION_STEP_ON;
+ _ctx->step_cb = NULL;
+ break;
+
+#endif // OAES_DEBUG
+
+ default:
+ return OAES_RET_ARG2;
+ }
+
+ _ctx->options |= option;
+
+ return OAES_RET_SUCCESS;
+}
+
+static OAES_RET oaes_encrypt_block(
+ OAES_CTX * ctx, uint8_t * c, size_t c_len )
+{
+ size_t _i, _j;
+ oaes_ctx * _ctx = (oaes_ctx *) ctx;
+
+ if( NULL == _ctx )
+ return OAES_RET_ARG1;
+
+ if( NULL == c )
+ return OAES_RET_ARG2;
+
+ if( c_len != OAES_BLOCK_SIZE )
+ return OAES_RET_ARG3;
+
+ if( NULL == _ctx->key )
+ return OAES_RET_NOKEY;
+
+#ifdef OAES_DEBUG
+ if( _ctx->step_cb )
+ _ctx->step_cb( c, "input", 1, NULL );
+#endif // OAES_DEBUG
+
+ // AddRoundKey(State, K0)
+ for( _i = 0; _i < c_len; _i++ )
+ c[_i] = c[_i] ^ _ctx->key->exp_data[_i];
+
+#ifdef OAES_DEBUG
+ if( _ctx->step_cb )
+ {
+ _ctx->step_cb( _ctx->key->exp_data, "k_sch", 1, NULL );
+ _ctx->step_cb( c, "k_add", 1, NULL );
+ }
+#endif // OAES_DEBUG
+
+ // for round = 1 step 1 to Nr–1
+ for( _i = 1; _i < _ctx->key->num_keys - 1; _i++ )
+ {
+ // SubBytes(state)
+ for( _j = 0; _j < c_len; _j++ )
+ oaes_sub_byte( c + _j );
+
+#ifdef OAES_DEBUG
+ if( _ctx->step_cb )
+ _ctx->step_cb( c, "s_box", _i, NULL );
+#endif // OAES_DEBUG
+
+ // ShiftRows(state)
+ oaes_shift_rows( c );
+
+#ifdef OAES_DEBUG
+ if( _ctx->step_cb )
+ _ctx->step_cb( c, "s_row", _i, NULL );
+#endif // OAES_DEBUG
+
+ // MixColumns(state)
+ oaes_mix_cols( c );
+ oaes_mix_cols( c + 4 );
+ oaes_mix_cols( c + 8 );
+ oaes_mix_cols( c + 12 );
+
+#ifdef OAES_DEBUG
+ if( _ctx->step_cb )
+ _ctx->step_cb( c, "m_col", _i, NULL );
+#endif // OAES_DEBUG
+
+ // AddRoundKey(state, w[round*Nb, (round+1)*Nb-1])
+ for( _j = 0; _j < c_len; _j++ )
+ c[_j] = c[_j] ^
+ _ctx->key->exp_data[_i * OAES_RKEY_LEN * OAES_COL_LEN + _j];
+
+#ifdef OAES_DEBUG
+ if( _ctx->step_cb )
+ {
+ _ctx->step_cb( _ctx->key->exp_data + _i * OAES_RKEY_LEN * OAES_COL_LEN,
+ "k_sch", _i, NULL );
+ _ctx->step_cb( c, "k_add", _i, NULL );
+ }
+#endif // OAES_DEBUG
+
+ }
+
+ // SubBytes(state)
+ for( _i = 0; _i < c_len; _i++ )
+ oaes_sub_byte( c + _i );
+
+#ifdef OAES_DEBUG
+ if( _ctx->step_cb )
+ _ctx->step_cb( c, "s_box", _ctx->key->num_keys - 1, NULL );
+#endif // OAES_DEBUG
+
+ // ShiftRows(state)
+ oaes_shift_rows( c );
+
+#ifdef OAES_DEBUG
+ if( _ctx->step_cb )
+ _ctx->step_cb( c, "s_row", _ctx->key->num_keys - 1, NULL );
+#endif // OAES_DEBUG
+
+ // AddRoundKey(state, w[Nr*Nb, (Nr+1)*Nb-1])
+ for( _i = 0; _i < c_len; _i++ )
+ c[_i] = c[_i] ^ _ctx->key->exp_data[
+ ( _ctx->key->num_keys - 1 ) * OAES_RKEY_LEN * OAES_COL_LEN + _i ];
+
+#ifdef OAES_DEBUG
+ if( _ctx->step_cb )
+ {
+ _ctx->step_cb( _ctx->key->exp_data +
+ ( _ctx->key->num_keys - 1 ) * OAES_RKEY_LEN * OAES_COL_LEN,
+ "k_sch", _ctx->key->num_keys - 1, NULL );
+ _ctx->step_cb( c, "output", _ctx->key->num_keys - 1, NULL );
+ }
+#endif // OAES_DEBUG
+
+ return OAES_RET_SUCCESS;
+}
+
+static OAES_RET oaes_decrypt_block(
+ OAES_CTX * ctx, uint8_t * c, size_t c_len )
+{
+ size_t _i, _j;
+ oaes_ctx * _ctx = (oaes_ctx *) ctx;
+
+ if( NULL == _ctx )
+ return OAES_RET_ARG1;
+
+ if( NULL == c )
+ return OAES_RET_ARG2;
+
+ if( c_len != OAES_BLOCK_SIZE )
+ return OAES_RET_ARG3;
+
+ if( NULL == _ctx->key )
+ return OAES_RET_NOKEY;
+
+#ifdef OAES_DEBUG
+ if( _ctx->step_cb )
+ _ctx->step_cb( c, "iinput", _ctx->key->num_keys - 1, NULL );
+#endif // OAES_DEBUG
+
+ // AddRoundKey(state, w[Nr*Nb, (Nr+1)*Nb-1])
+ for( _i = 0; _i < c_len; _i++ )
+ c[_i] = c[_i] ^ _ctx->key->exp_data[
+ ( _ctx->key->num_keys - 1 ) * OAES_RKEY_LEN * OAES_COL_LEN + _i ];
+
+#ifdef OAES_DEBUG
+ if( _ctx->step_cb )
+ {
+ _ctx->step_cb( _ctx->key->exp_data +
+ ( _ctx->key->num_keys - 1 ) * OAES_RKEY_LEN * OAES_COL_LEN,
+ "ik_sch", _ctx->key->num_keys - 1, NULL );
+ _ctx->step_cb( c, "ik_add", _ctx->key->num_keys - 1, NULL );
+ }
+#endif // OAES_DEBUG
+
+ for( _i = _ctx->key->num_keys - 2; _i > 0; _i-- )
+ {
+ // InvShiftRows(state)
+ oaes_inv_shift_rows( c );
+
+#ifdef OAES_DEBUG
+ if( _ctx->step_cb )
+ _ctx->step_cb( c, "is_row", _i, NULL );
+#endif // OAES_DEBUG
+
+ // InvSubBytes(state)
+ for( _j = 0; _j < c_len; _j++ )
+ oaes_inv_sub_byte( c + _j );
+
+#ifdef OAES_DEBUG
+ if( _ctx->step_cb )
+ _ctx->step_cb( c, "is_box", _i, NULL );
+#endif // OAES_DEBUG
+
+ // AddRoundKey(state, w[round*Nb, (round+1)*Nb-1])
+ for( _j = 0; _j < c_len; _j++ )
+ c[_j] = c[_j] ^
+ _ctx->key->exp_data[_i * OAES_RKEY_LEN * OAES_COL_LEN + _j];
+
+#ifdef OAES_DEBUG
+ if( _ctx->step_cb )
+ {
+ _ctx->step_cb( _ctx->key->exp_data + _i * OAES_RKEY_LEN * OAES_COL_LEN,
+ "ik_sch", _i, NULL );
+ _ctx->step_cb( c, "ik_add", _i, NULL );
+ }
+#endif // OAES_DEBUG
+
+ // InvMixColums(state)
+ oaes_inv_mix_cols( c );
+ oaes_inv_mix_cols( c + 4 );
+ oaes_inv_mix_cols( c + 8 );
+ oaes_inv_mix_cols( c + 12 );
+
+#ifdef OAES_DEBUG
+ if( _ctx->step_cb )
+ _ctx->step_cb( c, "im_col", _i, NULL );
+#endif // OAES_DEBUG
+
+ }
+
+ // InvShiftRows(state)
+ oaes_inv_shift_rows( c );
+
+#ifdef OAES_DEBUG
+ if( _ctx->step_cb )
+ _ctx->step_cb( c, "is_row", 1, NULL );
+#endif // OAES_DEBUG
+
+ // InvSubBytes(state)
+ for( _i = 0; _i < c_len; _i++ )
+ oaes_inv_sub_byte( c + _i );
+
+#ifdef OAES_DEBUG
+ if( _ctx->step_cb )
+ _ctx->step_cb( c, "is_box", 1, NULL );
+#endif // OAES_DEBUG
+
+ // AddRoundKey(state, w[0, Nb-1])
+ for( _i = 0; _i < c_len; _i++ )
+ c[_i] = c[_i] ^ _ctx->key->exp_data[_i];
+
+#ifdef OAES_DEBUG
+ if( _ctx->step_cb )
+ {
+ _ctx->step_cb( _ctx->key->exp_data, "ik_sch", 1, NULL );
+ _ctx->step_cb( c, "ioutput", 1, NULL );
+ }
+#endif // OAES_DEBUG
+
+ return OAES_RET_SUCCESS;
+}
+
+OAES_RET oaes_encrypt( OAES_CTX * ctx,
+ const uint8_t * m, size_t m_len, uint8_t * c, size_t * c_len )
+{
+ size_t _i, _j, _c_len_in, _c_data_len;
+ size_t _pad_len = m_len % OAES_BLOCK_SIZE == 0 ?
+ 0 : OAES_BLOCK_SIZE - m_len % OAES_BLOCK_SIZE;
+ oaes_ctx * _ctx = (oaes_ctx *) ctx;
+ OAES_RET _rc = OAES_RET_SUCCESS;
+ uint8_t _flags = _pad_len ? OAES_FLAG_PAD : 0;
+
+ if( NULL == _ctx )
+ return OAES_RET_ARG1;
+
+ if( NULL == m )
+ return OAES_RET_ARG2;
+
+ if( NULL == c_len )
+ return OAES_RET_ARG5;
+
+ _c_len_in = *c_len;
+ // data + pad
+ _c_data_len = m_len + _pad_len;
+ // header + iv + data + pad
+ *c_len = 2 * OAES_BLOCK_SIZE + m_len + _pad_len;
+
+ if( NULL == c )
+ return OAES_RET_SUCCESS;
+
+ if( _c_len_in < *c_len )
+ return OAES_RET_BUF;
+
+ if( NULL == _ctx->key )
+ return OAES_RET_NOKEY;
+
+ // header
+ memcpy(c, oaes_header, OAES_BLOCK_SIZE );
+ memcpy(c + 6, &_ctx->options, sizeof(_ctx->options));
+ memcpy(c + 8, &_flags, sizeof(_flags));
+ // iv
+ memcpy(c + OAES_BLOCK_SIZE, _ctx->iv, OAES_BLOCK_SIZE );
+ // data
+ memcpy(c + 2 * OAES_BLOCK_SIZE, m, m_len );
+
+ for( _i = 0; _i < _c_data_len; _i += OAES_BLOCK_SIZE )
+ {
+ uint8_t _block[OAES_BLOCK_SIZE];
+ size_t _block_size = min( m_len - _i, OAES_BLOCK_SIZE );
+
+ memcpy( _block, c + 2 * OAES_BLOCK_SIZE + _i, _block_size );
+
+ // insert pad
+ for( _j = 0; _j < OAES_BLOCK_SIZE - _block_size; _j++ )
+ _block[ _block_size + _j ] = _j + 1;
+
+ // CBC
+ if( _ctx->options & OAES_OPTION_CBC )
+ {
+ for( _j = 0; _j < OAES_BLOCK_SIZE; _j++ )
+ _block[_j] = _block[_j] ^ _ctx->iv[_j];
+ }
+
+ _rc = _rc ||
+ oaes_encrypt_block( ctx, _block, OAES_BLOCK_SIZE );
+ memcpy( c + 2 * OAES_BLOCK_SIZE + _i, _block, OAES_BLOCK_SIZE );
+
+ if( _ctx->options & OAES_OPTION_CBC )
+ memcpy( _ctx->iv, _block, OAES_BLOCK_SIZE );
+ }
+
+ return _rc;
+}
+
+OAES_RET oaes_decrypt( OAES_CTX * ctx,
+ const uint8_t * c, size_t c_len, uint8_t * m, size_t * m_len )
+{
+ size_t _i, _j, _m_len_in;
+ oaes_ctx * _ctx = (oaes_ctx *) ctx;
+ OAES_RET _rc = OAES_RET_SUCCESS;
+ uint8_t _iv[OAES_BLOCK_SIZE];
+ uint8_t _flags;
+ OAES_OPTION _options;
+
+ if( NULL == ctx )
+ return OAES_RET_ARG1;
+
+ if( NULL == c )
+ return OAES_RET_ARG2;
+
+ if( c_len % OAES_BLOCK_SIZE )
+ return OAES_RET_ARG3;
+
+ if( NULL == m_len )
+ return OAES_RET_ARG5;
+
+ _m_len_in = *m_len;
+ *m_len = c_len - 2 * OAES_BLOCK_SIZE;
+
+ if( NULL == m )
+ return OAES_RET_SUCCESS;
+
+ if( _m_len_in < *m_len )
+ return OAES_RET_BUF;
+
+ if( NULL == _ctx->key )
+ return OAES_RET_NOKEY;
+
+ // header
+ if( 0 != memcmp( c, oaes_header, 4 ) )
+ return OAES_RET_HEADER;
+
+ // header version
+ switch( c[4] )
+ {
+ case 0x01:
+ break;
+ default:
+ return OAES_RET_HEADER;
+ }
+
+ // header type
+ switch( c[5] )
+ {
+ case 0x02:
+ break;
+ default:
+ return OAES_RET_HEADER;
+ }
+
+ // options
+ memcpy(&_options, c + 6, sizeof(_options));
+ // validate that all options are valid
+ if( _options & ~(
+ OAES_OPTION_ECB
+ | OAES_OPTION_CBC
+#ifdef OAES_DEBUG
+ | OAES_OPTION_STEP_ON
+ | OAES_OPTION_STEP_OFF
+#endif // OAES_DEBUG
+ ) )
+ return OAES_RET_HEADER;
+ if( ( _options & OAES_OPTION_ECB ) &&
+ ( _options & OAES_OPTION_CBC ) )
+ return OAES_RET_HEADER;
+ if( _options == OAES_OPTION_NONE )
+ return OAES_RET_HEADER;
+
+ // flags
+ memcpy(&_flags, c + 8, sizeof(_flags));
+ // validate that all flags are valid
+ if( _flags & ~(
+ OAES_FLAG_PAD
+ ) )
+ return OAES_RET_HEADER;
+
+ // iv
+ memcpy( _iv, c + OAES_BLOCK_SIZE, OAES_BLOCK_SIZE);
+ // data + pad
+ memcpy( m, c + 2 * OAES_BLOCK_SIZE, *m_len );
+
+ for( _i = 0; _i < *m_len; _i += OAES_BLOCK_SIZE )
+ {
+ if( ( _options & OAES_OPTION_CBC ) && _i > 0 )
+ memcpy( _iv, c + OAES_BLOCK_SIZE + _i, OAES_BLOCK_SIZE );
+
+ _rc = _rc ||
+ oaes_decrypt_block( ctx, m + _i, min( *m_len - _i, OAES_BLOCK_SIZE ) );
+
+ // CBC
+ if( _options & OAES_OPTION_CBC )
+ {
+ for( _j = 0; _j < OAES_BLOCK_SIZE; _j++ )
+ m[ _i + _j ] = m[ _i + _j ] ^ _iv[_j];
+ }
+ }
+
+ // remove pad
+ if( _flags & OAES_FLAG_PAD )
+ {
+ int _is_pad = 1;
+ size_t _temp = (size_t) m[*m_len - 1];
+
+ if( _temp <= 0x00 || _temp > 0x0f )
+ return OAES_RET_HEADER;
+ for( _i = 0; _i < _temp; _i++ )
+ if( m[*m_len - 1 - _i] != _temp - _i )
+ _is_pad = 0;
+ if( _is_pad )
+ {
+ memset( m + *m_len - _temp, 0, _temp );
+ *m_len -= _temp;
+ }
+ else
+ return OAES_RET_HEADER;
+ }
+
+ return OAES_RET_SUCCESS;
+}
diff --git a/openaes/test/test_encrypt.c b/openaes/test/test_encrypt.c
new file mode 100644
index 0000000..b229f2d
--- /dev/null
+++ b/openaes/test/test_encrypt.c
@@ -0,0 +1,229 @@
+/*
+ * ---------------------------------------------------------------------------
+ * OpenAES License
+ * ---------------------------------------------------------------------------
+ * Copyright (c) 2012, Nabil S. Al Ramli, www.nalramli.com
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ * ---------------------------------------------------------------------------
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "oaes_lib.h"
+
+void usage(const char * exe_name)
+{
+ if( NULL == exe_name )
+ return;
+
+ printf(
+ "Usage:\n"
+ "\t%s [-ecb] [-key < 128 | 192 | 256 >] <text>\n",
+ exe_name
+ );
+}
+
+int main(int argc, char** argv)
+{
+ size_t _i;
+ OAES_CTX * ctx = NULL;
+ uint8_t *_encbuf, *_decbuf;
+ size_t _encbuf_len, _decbuf_len, _buf_len;
+ char *_buf;
+ short _is_ecb = 0;
+ char * _text = NULL;
+ int _key_len = 128;
+
+ if( argc < 2 )
+ {
+ usage( argv[0] );
+ return EXIT_FAILURE;
+ }
+
+ for( _i = 1; _i < argc; _i++ )
+ {
+ int _found = 0;
+
+ if( 0 == strcmp( argv[_i], "-ecb" ) )
+ {
+ _found = 1;
+ _is_ecb = 1;
+ }
+
+ if( 0 == strcmp( argv[_i], "-key" ) )
+ {
+ _found = 1;
+ _i++; // len
+ if( _i >= argc )
+ {
+ printf("Error: No value specified for '-%s'.\n",
+ "key");
+ usage( argv[0] );
+ return EXIT_FAILURE;
+ }
+ _key_len = atoi( argv[_i] );
+ switch( _key_len )
+ {
+ case 128:
+ case 192:
+ case 256:
+ break;
+ default:
+ printf("Error: Invalid value [%d] specified for '-%s'.\n",
+ _key_len, "key");
+ usage( argv[0] );
+ return EXIT_FAILURE;
+ }
+ }
+
+ if( 0 == _found )
+ {
+ if( _text )
+ {
+ printf("Error: Invalid option '%s'.\n", argv[_i]);
+ usage( argv[0] );
+ return EXIT_FAILURE;
+ }
+ else
+ {
+ _text = (char *) calloc(strlen( argv[_i] ) + 1, sizeof(char));
+ if( NULL == _text )
+ {
+ printf("Error: Failed to allocate memory.\n", argv[_i]);
+ return EXIT_FAILURE;
+ }
+ strcpy( _text, argv[_i] );
+ }
+ }
+ }
+
+ if( NULL == _text )
+ {
+ usage( argv[0] );
+ return EXIT_FAILURE;
+ }
+
+ oaes_sprintf( NULL, &_buf_len,
+ (const uint8_t *)_text, strlen( _text ) );
+ _buf = (char *) calloc(_buf_len, sizeof(char));
+ printf( "\n***** plaintext *****\n" );
+ if( _buf )
+ {
+ oaes_sprintf( _buf, &_buf_len,
+ (const uint8_t *)_text, strlen( _text ) );
+ printf( "%s", _buf );
+ }
+ printf( "\n**********************\n" );
+ free( _buf );
+
+ ctx = oaes_alloc();
+ if( NULL == ctx )
+ {
+ printf("Error: Failed to initialize OAES.\n");
+ free( _text );
+ return EXIT_FAILURE;
+ }
+ if( _is_ecb )
+ if( OAES_RET_SUCCESS != oaes_set_option( ctx, OAES_OPTION_ECB, NULL ) )
+ printf("Error: Failed to set OAES options.\n");
+ switch( _key_len )
+ {
+ case 128:
+ if( OAES_RET_SUCCESS != oaes_key_gen_128(ctx) )
+ printf("Error: Failed to generate OAES %d bit key.\n", _key_len);
+ break;
+ case 192:
+ if( OAES_RET_SUCCESS != oaes_key_gen_192(ctx) )
+ printf("Error: Failed to generate OAES %d bit key.\n", _key_len);
+ break;
+ case 256:
+ if( OAES_RET_SUCCESS != oaes_key_gen_256(ctx) )
+ printf("Error: Failed to generate OAES %d bit key.\n", _key_len);
+ break;
+ default:
+ break;
+ }
+
+ if( OAES_RET_SUCCESS != oaes_encrypt( ctx,
+ (const uint8_t *)_text, strlen( _text ), NULL, &_encbuf_len ) )
+ printf("Error: Failed to retrieve required buffer size for encryption.\n");
+ _encbuf = (uint8_t *) calloc( _encbuf_len, sizeof(uint8_t) );
+ if( NULL == _encbuf )
+ {
+ printf( "Error: Failed to allocate memory.\n" );
+ free( _text );
+ return EXIT_FAILURE;
+ }
+ if( OAES_RET_SUCCESS != oaes_encrypt( ctx,
+ (const uint8_t *)_text, strlen( _text ), _encbuf, &_encbuf_len ) )
+ printf("Error: Encryption failed.\n");
+
+ if( OAES_RET_SUCCESS != oaes_decrypt( ctx,
+ _encbuf, _encbuf_len, NULL, &_decbuf_len ) )
+ printf("Error: Failed to retrieve required buffer size for encryption.\n");
+ _decbuf = (uint8_t *) calloc( _decbuf_len, sizeof(uint8_t) );
+ if( NULL == _decbuf )
+ {
+ printf( "Error: Failed to allocate memory.\n" );
+ free( _text );
+ free( _encbuf );
+ return EXIT_FAILURE;
+ }
+ if( OAES_RET_SUCCESS != oaes_decrypt( ctx,
+ _encbuf, _encbuf_len, _decbuf, &_decbuf_len ) )
+ printf("Error: Decryption failed.\n");
+
+ if( OAES_RET_SUCCESS != oaes_free( &ctx ) )
+ printf("Error: Failed to uninitialize OAES.\n");
+
+ oaes_sprintf( NULL, &_buf_len, _encbuf, _encbuf_len );
+ _buf = (char *) calloc(_buf_len, sizeof(char));
+ printf( "\n***** cyphertext *****\n" );
+ if( _buf )
+ {
+ oaes_sprintf( _buf, &_buf_len, _encbuf, _encbuf_len );
+ printf( "%s", _buf );
+ }
+ printf( "\n**********************\n" );
+ free( _buf );
+
+ oaes_sprintf( NULL, &_buf_len, _decbuf, _decbuf_len );
+ _buf = (char *) calloc(_buf_len, sizeof( char));
+ printf( "\n***** plaintext *****\n" );
+ if( _buf )
+ {
+ oaes_sprintf( _buf, &_buf_len, _decbuf, _decbuf_len );
+ printf( "%s", _buf );
+ }
+ printf( "\n**********************\n\n" );
+ free( _buf );
+
+ free( _encbuf );
+ free( _decbuf );
+ free( _text );
+
+ return (EXIT_SUCCESS);
+}
diff --git a/openaes/test/test_keys.c b/openaes/test/test_keys.c
new file mode 100644
index 0000000..6a8d625
--- /dev/null
+++ b/openaes/test/test_keys.c
@@ -0,0 +1,248 @@
+/*
+ * ---------------------------------------------------------------------------
+ * OpenAES License
+ * ---------------------------------------------------------------------------
+ * Copyright (c) 2012, Nabil S. Al Ramli, www.nalramli.com
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ * ---------------------------------------------------------------------------
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "oaes_lib.h"
+
+/*
+ *
+ */
+int main(int argc, char** argv) {
+
+ OAES_CTX * ctx = NULL;
+ uint8_t * _buf;
+ size_t _data_len;
+ FILE * f = NULL;
+ OAES_RET _rc;
+
+ if( NULL == ( ctx = oaes_alloc() ) )
+ {
+ printf( "Error: Initialization failed.\n" );
+ return 1;
+ }
+
+ /* ************** Generate 128-bit key and export it **************
+ * ****************************************************************/
+ if( OAES_RET_SUCCESS != ( _rc = oaes_key_gen_128(ctx) ) )
+ {
+ printf( "Error: Failed to generate 128-bit key [%d].\n", _rc );
+ oaes_free(&ctx);
+ return 1;
+ }
+
+ if( OAES_RET_SUCCESS != ( _rc = oaes_key_export(ctx, NULL, &_data_len) ) )
+ {
+ printf( "Error: Failed to retrieve key length [%d].\n", _rc );
+ oaes_free(&ctx);
+ return 1;
+ }
+
+ _buf = (uint8_t *) calloc(_data_len, sizeof(uint8_t));
+ if( _buf )
+ {
+ if( OAES_RET_SUCCESS != ( _rc = oaes_key_export(ctx, _buf, &_data_len) ) )
+ {
+ printf("Error: Failed to export key [%d].\n", _rc);
+ free(_buf);
+ oaes_free(&ctx);
+ return 1;
+ }
+
+ f = fopen( "key_128", "wb" );
+ if( f )
+ {
+ fwrite(_buf, _data_len, sizeof(uint8_t), f);
+ fclose(f);
+ }
+ free(_buf);
+ }
+
+ /* ************** Generate 192-bit key and export it **************
+ * ****************************************************************/
+ if( OAES_RET_SUCCESS != ( _rc = oaes_key_gen_192(ctx) ) )
+ {
+ printf( "Error: Failed to generate 192-bit key [%d].\n", _rc );
+ oaes_free(&ctx);
+ return 1;
+ }
+
+ if( OAES_RET_SUCCESS != ( _rc = oaes_key_export(ctx, NULL, &_data_len) ) )
+ {
+ printf( "Error: Failed to retrieve key length [%d].\n", _rc );
+ oaes_free(&ctx);
+ return 1;
+ }
+
+ _buf = (uint8_t *) calloc(_data_len, sizeof(uint8_t));
+ if( _buf )
+ {
+ if( OAES_RET_SUCCESS != ( _rc = oaes_key_export(ctx, _buf, &_data_len) ) )
+ {
+ printf("Error: Failed to export key [%d].\n", _rc);
+ free(_buf);
+ oaes_free(&ctx);
+ return 1;
+ }
+
+ f = fopen("key_192", "wb");
+ if( f )
+ {
+ fwrite(_buf, _data_len, sizeof(uint8_t), f);
+ fclose(f);
+ }
+ free(_buf);
+ }
+
+ /* ************** Generate 256-bit key and export it **************
+ * ****************************************************************/
+ if( OAES_RET_SUCCESS != ( _rc = oaes_key_gen_256(ctx) ) )
+ {
+ printf("Error: Failed to generate 256-bit key [%d].\n", _rc);
+ oaes_free(&ctx);
+ return 1;
+ }
+
+ if( OAES_RET_SUCCESS != ( _rc = oaes_key_export(ctx, NULL, &_data_len) ) )
+ {
+ printf("Error: Failed to retrieve key length [%d].\n", _rc);
+ oaes_free(&ctx);
+ return 1;
+ }
+
+ _buf = (uint8_t *) calloc(_data_len, sizeof(uint8_t));
+ if( _buf )
+ {
+ if( OAES_RET_SUCCESS != ( _rc = oaes_key_export(ctx, _buf, &_data_len) ) )
+ {
+ printf("Error: Failed to export key [%d].\n", _rc);
+ free(_buf);
+ oaes_free(&ctx);
+ return 1;
+ }
+
+ f = fopen("key_256", "wb");
+ if( f )
+ {
+ fwrite(_buf, _data_len, sizeof(uint8_t), f);
+ fclose(f);
+ }
+ free(_buf);
+ }
+
+ /* ********************** Import 128-bit key **********************
+ * ****************************************************************/
+ f = fopen("key_128", "rb");
+ if( f )
+ {
+ fseek(f, 0L, SEEK_END);
+ _data_len = ftell(f);
+ fseek(f, 0L, SEEK_SET);
+ _buf = (uint8_t *) calloc(_data_len, sizeof(uint8_t));
+ if( _buf )
+ {
+ fread(_buf, _data_len, sizeof(uint8_t), f);
+
+ if( OAES_RET_SUCCESS !=
+ ( _rc = oaes_key_import(ctx, _buf, _data_len) ) )
+ {
+ printf( "Error: Failed to import key [%d].\n", _rc );
+ free(_buf);
+ fclose(f);
+ oaes_free(&ctx);
+ return 1;
+ }
+
+ free(_buf);
+ }
+ fclose(f);
+ }
+
+ /* ********************** Import 192-bit key **********************
+ * ****************************************************************/
+ f = fopen("key_192", "rb");
+ if( f )
+ {
+ fseek(f, 0L, SEEK_END);
+ _data_len = ftell(f);
+ fseek(f, 0L, SEEK_SET);
+ _buf = (uint8_t *) calloc(_data_len, sizeof(uint8_t));
+ if( _buf )
+ {
+ fread(_buf, _data_len, sizeof(uint8_t), f);
+
+ if( OAES_RET_SUCCESS !=
+ ( _rc = oaes_key_import(ctx, _buf, _data_len) ) )
+ {
+ printf("Error: Failed to import key [%d].\n", _rc);
+ free(_buf);
+ fclose(f);
+ oaes_free(&ctx);
+ return 1;
+ }
+
+ free(_buf);
+ }
+ fclose(f);
+ }
+
+ /* ********************** Import 256-bit key **********************
+ * ****************************************************************/
+ f = fopen("key_256", "rb");
+ if( f )
+ {
+ fseek(f, 0L, SEEK_END);
+ _data_len = ftell(f);
+ fseek(f, 0L, SEEK_SET);
+ _buf = (uint8_t *) calloc(_data_len, sizeof(uint8_t));
+ if( _buf )
+ {
+ fread(_buf, _data_len, sizeof(uint8_t), f);
+
+ if( OAES_RET_SUCCESS !=
+ ( _rc = oaes_key_import(ctx, _buf, _data_len) ) )
+ {
+ printf("Error: Failed to import key [%d].\n", _rc);
+ free(_buf);
+ fclose(f);
+ oaes_free(&ctx);
+ return 1;
+ }
+
+ free(_buf);
+ }
+ fclose(f);
+ }
+
+ oaes_free(&ctx);
+
+ return (EXIT_SUCCESS);
+}
diff --git a/openaes/test/test_performance.c b/openaes/test/test_performance.c
new file mode 100644
index 0000000..a005c58
--- /dev/null
+++ b/openaes/test/test_performance.c
@@ -0,0 +1,200 @@
+/*
+ * ---------------------------------------------------------------------------
+ * OpenAES License
+ * ---------------------------------------------------------------------------
+ * Copyright (c) 2012, Nabil S. Al Ramli, www.nalramli.com
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ * ---------------------------------------------------------------------------
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include "oaes_lib.h"
+
+void usage(const char * exe_name)
+{
+ if( NULL == exe_name )
+ return;
+
+ printf(
+ "Usage:\n"
+ "\t%s [-ecb] [-key < 128 | 192 | 256 >] [-data <data_len>]\n",
+ exe_name
+ );
+}
+
+/*
+ *
+ */
+int main(int argc, char** argv) {
+
+ size_t _i, _j;
+ time_t _time_start, _time_end;
+ OAES_CTX * ctx = NULL;
+ uint8_t *_encbuf, *_decbuf;
+ size_t _encbuf_len, _decbuf_len;
+ uint8_t _buf[1024 * 1024];
+ short _is_ecb = 0;
+ int _key_len = 128;
+ size_t _data_len = 64;
+
+ for( _i = 1; _i < argc; _i++ )
+ {
+ int _found = 0;
+
+ if( 0 == strcmp( argv[_i], "-ecb" ) )
+ {
+ _found = 1;
+ _is_ecb = 1;
+ }
+
+ if( 0 == strcmp( argv[_i], "-key" ) )
+ {
+ _found = 1;
+ _i++; // key_len
+ if( _i >= argc )
+ {
+ printf("Error: No value specified for '-%s'.\n",
+ "key");
+ usage( argv[0] );
+ return 1;
+ }
+ _key_len = atoi( argv[_i] );
+ switch( _key_len )
+ {
+ case 128:
+ case 192:
+ case 256:
+ break;
+ default:
+ printf("Error: Invalid value [%d] specified for '-%s'.\n",
+ _key_len, "key");
+ usage( argv[0] );
+ return 1;
+ }
+ }
+
+ if( 0 == strcmp( argv[_i], "-data" ) )
+ {
+ _found = 1;
+ _i++; // data_len
+ if( _i >= argc )
+ {
+ printf("Error: No value specified for '-%s'.\n",
+ "data");
+ usage( argv[0] );
+ return 1;
+ }
+ _data_len = atoi( argv[_i] );
+ }
+
+ if( 0 == _found )
+ {
+ printf("Error: Invalid option '%s'.\n", argv[_i]);
+ usage( argv[0] );
+ return 1;
+ }
+ }
+
+ // generate random test data
+ time( &_time_start );
+ srand( _time_start );
+ for( _i = 0; _i < 1024 * 1024; _i++ )
+ _buf[_i] = rand();
+
+ ctx = oaes_alloc();
+ if( NULL == ctx )
+ {
+ printf("Error: Failed to initialize OAES.\n");
+ return EXIT_FAILURE;
+ }
+ if( _is_ecb )
+ if( OAES_RET_SUCCESS != oaes_set_option( ctx, OAES_OPTION_ECB, NULL ) )
+ printf("Error: Failed to set OAES options.\n");
+ switch( _key_len )
+ {
+ case 128:
+ if( OAES_RET_SUCCESS != oaes_key_gen_128(ctx) )
+ printf("Error: Failed to generate OAES %d bit key.\n", _key_len);
+ break;
+ case 192:
+ if( OAES_RET_SUCCESS != oaes_key_gen_192(ctx) )
+ printf("Error: Failed to generate OAES %d bit key.\n", _key_len);
+ break;
+ case 256:
+ if( OAES_RET_SUCCESS != oaes_key_gen_256(ctx) )
+ printf("Error: Failed to generate OAES %d bit key.\n", _key_len);
+ break;
+ default:
+ break;
+ }
+
+ if( OAES_RET_SUCCESS != oaes_encrypt( ctx,
+ (const uint8_t *)_buf, 1024 * 1024, NULL, &_encbuf_len ) )
+ printf("Error: Failed to retrieve required buffer size for encryption.\n");
+ _encbuf = (uint8_t *) calloc( _encbuf_len, sizeof( char ) );
+ if( NULL == _encbuf )
+ {
+ printf( "Error: Failed to allocate memory.\n" );
+ return EXIT_FAILURE;
+ }
+
+ if( OAES_RET_SUCCESS != oaes_decrypt( ctx,
+ _encbuf, _encbuf_len, NULL, &_decbuf_len ) )
+ printf("Error: Failed to retrieve required buffer size for encryption.\n");
+ _decbuf = (uint8_t *) calloc( _decbuf_len, sizeof( char ) );
+ if( NULL == _decbuf )
+ {
+ free( _encbuf );
+ printf( "Error: Failed to allocate memory.\n" );
+ return EXIT_FAILURE;
+ }
+
+ time( &_time_start );
+
+ for( _i = 0; _i < _data_len; _i++ )
+ {
+ if( OAES_RET_SUCCESS != oaes_encrypt( ctx,
+ (const uint8_t *)_buf, 1024 * 1024, _encbuf, &_encbuf_len ) )
+ printf("Error: Encryption failed.\n");
+ if( OAES_RET_SUCCESS != oaes_decrypt( ctx,
+ _encbuf, _encbuf_len, _decbuf, &_decbuf_len ) )
+ printf("Error: Decryption failed.\n");
+ }
+
+ time( &_time_end );
+ printf( "Test encrypt and decrypt:\n\ttime: %lld seconds\n\tdata: %ld MB"
+ "\n\tkey: %d bits\n\tmode: %s\n",
+ _time_end - _time_start, _data_len,
+ _key_len, _is_ecb? "EBC" : "CBC" );
+ free( _encbuf );
+ free( _decbuf );
+ if( OAES_RET_SUCCESS != oaes_free( &ctx ) )
+ printf("Error: Failed to uninitialize OAES.\n");
+
+ return (EXIT_SUCCESS);
+}
diff --git a/openaes/test/vt_aes.c b/openaes/test/vt_aes.c
new file mode 100644
index 0000000..1ba755e
--- /dev/null
+++ b/openaes/test/vt_aes.c
@@ -0,0 +1,405 @@
+/*
+ * ---------------------------------------------------------------------------
+ * OpenAES License
+ * ---------------------------------------------------------------------------
+ * Copyright (c) 2012, Nabil S. Al Ramli, www.nalramli.com
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ * ---------------------------------------------------------------------------
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define OAES_DEBUG 1
+#include "oaes_lib.h"
+
+static int _is_step = 1;
+
+static int step_cb(
+ const uint8_t state[OAES_BLOCK_SIZE],
+ const char * step_name,
+ int step_count,
+ void * user_data )
+{
+ size_t _buf_len;
+ char * _buf;
+
+
+ if( NULL == state )
+ return 1;
+
+ oaes_sprintf( NULL, &_buf_len, state, OAES_BLOCK_SIZE );
+ _buf = (char *) calloc( _buf_len, sizeof( char ) );
+
+ if( _buf )
+ {
+ oaes_sprintf( _buf, &_buf_len, state, OAES_BLOCK_SIZE );
+ printf( "round[%2d].%-7s --> %s", step_count, step_name, _buf );
+ free( _buf );
+ }
+
+ if( 1 == _is_step && '\n' != getchar( ) )
+ _is_step = 0;
+
+ return 0;
+}
+
+static int to_binary(uint8_t * buf, size_t * buf_len, const char * data)
+{
+ size_t _i, _buf_len_in;
+
+ if( NULL == buf_len )
+ return 1;
+
+ if( NULL == data )
+ return 1;
+
+ _buf_len_in = *buf_len;
+ *buf_len = strlen( data ) / 2;
+
+ if( NULL == buf )
+ return 0;
+
+ if( *buf_len > _buf_len_in )
+ return 1;
+
+ memset( buf, 0, strlen( data ) / 2 );
+
+ // lookup ascii table
+ for( _i = 0; _i < strlen( data ); _i++ )
+ {
+ // 0-9
+ if( data[_i] >= 0x30 && data[_i] <= 0x39 )
+ buf[_i / 2] += ( data[_i] - 0x30 ) << ( 4 * ( ( _i + 1 ) % 2 ) ) ;
+ // a-f
+ else if( data[_i] >= 0x41 && data[_i] <= 0x46 )
+ buf[_i / 2] += ( data[_i] - 0x37 ) << ( 4 * ( ( _i + 1 ) % 2 ) );
+ // A-F
+ else if( data[_i] >= 0x61 && data[_i] <= 0x66 )
+ buf[_i / 2] += ( data[_i] - 0x57 ) << ( 4 * ( ( _i + 1 ) % 2 ) );
+ // invalid character
+ else
+ return 1;
+ }
+
+ return 0;
+}
+
+static void usage(const char * exe_name)
+{
+ if( NULL == exe_name )
+ return;
+
+ printf(
+ "Usage:\n"
+ " %s [-step] [-ecb] [[-key < 128 | 192 | 256 | key_data >] [-bin] <text>\n",
+ exe_name
+ );
+}
+
+int main(int argc, char** argv)
+{
+ size_t _i;
+ OAES_CTX * ctx = NULL;
+ uint8_t *_encbuf, *_decbuf, *_key_data = NULL, *_bin_data = NULL;
+ size_t _encbuf_len, _decbuf_len, _buf_len;
+ size_t _key_data_len = 0, _bin_data_len = 0;
+ char *_buf;
+ short _is_ecb = 0, _is_bin = 0;
+ char * _text = NULL, * _key_text = NULL;
+ int _key_len = 128;
+
+ if( argc < 2 )
+ {
+ usage( argv[0] );
+ return EXIT_FAILURE;
+ }
+
+ for( _i = 1; _i < argc; _i++ )
+ {
+ int _found = 0;
+
+ if( 0 == strcmp( argv[_i], "-nostep" ) )
+ {
+ _found = 1;
+ _is_step = 0;
+ }
+
+ if( 0 == strcmp( argv[_i], "-ecb" ) )
+ {
+ _found = 1;
+ _is_ecb = 1;
+ }
+
+ if( 0 == strcmp( argv[_i], "-bin" ) )
+ {
+ _found = 1;
+ _is_bin = 1;
+ }
+
+ if( 0 == strcmp( argv[_i], "-key" ) )
+ {
+ _found = 1;
+ _i++; // len
+ if( _i >= argc )
+ {
+ printf("Error: No value specified for '-%s'.\n",
+ "key");
+ usage( argv[0] );
+ return EXIT_FAILURE;
+ }
+ _key_len = atoi( argv[_i] );
+ switch( _key_len )
+ {
+ case 128:
+ case 192:
+ case 256:
+ break;
+ default:
+ _key_text = argv[_i];
+ if( to_binary( NULL, &_key_data_len, _key_text ) )
+ {
+ printf( "Error: Invalid value [%s] specified for '-%s'.\n",
+ argv[_i], "key" );
+ return EXIT_FAILURE;
+ }
+ switch( _key_data_len )
+ {
+ case 16:
+ case 24:
+ case 32:
+ break;
+ default:
+ printf("Error: key_data [%s] specified for '-%s' has an invalid "
+ "size.\n", argv[_i], "key");
+ usage( argv[0] );
+ return EXIT_FAILURE;
+ }
+ }
+ }
+
+ if( 0 == _found )
+ {
+ if( _text )
+ {
+ printf("Error: Invalid option '%s'.\n", argv[_i]);
+ usage( argv[0] );
+ return EXIT_FAILURE;
+ }
+ else
+ {
+ _text = argv[_i];
+ if( _is_bin && to_binary( NULL, &_bin_data_len, _text ) )
+ {
+ printf( "Error: Invalid value [%s] specified for '-%s'.\n",
+ argv[_i], "bin" );
+ return EXIT_FAILURE;
+ }
+ }
+ }
+ }
+
+ if( NULL == _text )
+ {
+ usage( argv[0] );
+ return EXIT_FAILURE;
+ }
+
+ if( _is_step )
+ printf( "\nEnabling step mode, press Return to step.\n\n" );
+
+ if( _is_bin )
+ {
+ _bin_data = (uint8_t *) calloc(_bin_data_len, sizeof(uint8_t));
+ if( NULL == _bin_data )
+ {
+ printf( "Error: Failed to allocate memory.\n" );
+ return EXIT_FAILURE;
+ }
+ if( to_binary( _bin_data, &_bin_data_len, _text ) )
+ {
+ printf( "Error: Could not load data [%s].\n", _text);
+ free( _bin_data );
+ return EXIT_FAILURE;
+ }
+ }
+ else
+ {
+ oaes_sprintf( NULL, &_buf_len, (const uint8_t *)_text, strlen(_text));
+ _buf = (char *) calloc(_buf_len, sizeof(char));
+ printf( "\n***** plaintext *****\n" );
+ if( _buf )
+ {
+ oaes_sprintf( _buf, &_buf_len,
+ (const uint8_t *)_text, strlen( _text ) );
+ printf( "%s", _buf );
+ }
+ printf( "\n**********************\n" );
+ free( _buf );
+ }
+
+ ctx = oaes_alloc();
+ if( NULL == ctx )
+ {
+ printf("Error: Failed to initialize OAES.\n");
+ if( _bin_data )
+ free( _bin_data );
+ return EXIT_FAILURE;
+ }
+ if( OAES_RET_SUCCESS != oaes_set_option( ctx, OAES_OPTION_STEP_ON, step_cb ) )
+ printf("Error: Failed to set OAES options.\n");
+ if( _is_ecb )
+ if( OAES_RET_SUCCESS != oaes_set_option( ctx, OAES_OPTION_ECB, NULL ) )
+ printf("Error: Failed to set OAES options.\n");
+
+ if( _key_text )
+ {
+ _key_data = (uint8_t *) calloc(_key_data_len, sizeof(uint8_t));
+ if( NULL == _key_data )
+ {
+ printf( "Error: Failed to allocate memory.\n" );
+ if( _bin_data )
+ free( _bin_data );
+ return EXIT_FAILURE;
+ }
+ if( to_binary( _key_data, &_key_data_len, _key_text ) )
+ {
+ printf( "Error: Could not load key [%s].\n", _key_text);
+ free( _key_data );
+ return EXIT_FAILURE;
+ }
+ oaes_key_import_data( ctx, _key_data, _key_data_len );
+ }
+ else
+ switch( _key_len )
+ {
+ case 128:
+ if( OAES_RET_SUCCESS != oaes_key_gen_128(ctx) )
+ printf("Error: Failed to generate OAES %d bit key.\n", _key_len);
+ break;
+ case 192:
+ if( OAES_RET_SUCCESS != oaes_key_gen_192(ctx) )
+ printf("Error: Failed to generate OAES %d bit key.\n", _key_len);
+ break;
+ case 256:
+ if( OAES_RET_SUCCESS != oaes_key_gen_256(ctx) )
+ printf("Error: Failed to generate OAES %d bit key.\n", _key_len);
+ break;
+ default:
+ break;
+ }
+
+ if( _bin_data )
+ {
+ if( OAES_RET_SUCCESS != oaes_encrypt( ctx,
+ _bin_data, _bin_data_len, NULL, &_encbuf_len ) )
+ printf("Error: Failed to retrieve required buffer size for encryption.\n");
+ _encbuf = (uint8_t *) calloc(_encbuf_len, sizeof(uint8_t));
+ if( NULL == _encbuf )
+ {
+ printf( "Error: Failed to allocate memory.\n" );
+ if( _key_data )
+ free( _key_data );
+ free( _bin_data );
+ return EXIT_FAILURE;
+ }
+ printf( "\n" );
+ if( OAES_RET_SUCCESS != oaes_encrypt( ctx,
+ _bin_data, _bin_data_len, _encbuf, &_encbuf_len ) )
+ printf("Error: Encryption failed.\n");
+ printf( "\n**********************\n\n" );
+ }
+ else
+ {
+ if( OAES_RET_SUCCESS != oaes_encrypt( ctx,
+ (const uint8_t *)_text, strlen( _text ), NULL, &_encbuf_len ) )
+ printf("Error: Failed to retrieve required buffer size for encryption.\n");
+ _encbuf = (uint8_t *) calloc(_encbuf_len, sizeof(uint8_t));
+ if( NULL == _encbuf )
+ {
+ printf( "Error: Failed to allocate memory.\n" );
+ if( _key_data )
+ free( _key_data );
+ return EXIT_FAILURE;
+ }
+ printf( "\n" );
+ if( OAES_RET_SUCCESS != oaes_encrypt( ctx,
+ (const uint8_t *)_text, strlen( _text ), _encbuf, &_encbuf_len ) )
+ printf("Error: Encryption failed.\n");
+ printf( "\n**********************\n\n" );
+ }
+
+ if( OAES_RET_SUCCESS != oaes_decrypt( ctx,
+ _encbuf, _encbuf_len, NULL, &_decbuf_len ) )
+ printf("Error: Failed to retrieve required buffer size for encryption.\n");
+ _decbuf = (uint8_t *) calloc(_decbuf_len, sizeof(uint8_t));
+ if( NULL == _decbuf )
+ {
+ printf( "Error: Failed to allocate memory.\n" );
+ if( _key_data )
+ free( _key_data );
+ if( _bin_data )
+ free( _bin_data );
+ free( _encbuf );
+ return EXIT_FAILURE;
+ }
+ if( OAES_RET_SUCCESS != oaes_decrypt( ctx,
+ _encbuf, _encbuf_len, _decbuf, &_decbuf_len ) )
+ printf("Error: Decryption failed.\n");
+
+ if( OAES_RET_SUCCESS != oaes_free( &ctx ) )
+ printf("Error: Failed to uninitialize OAES.\n");
+
+ oaes_sprintf( NULL, &_buf_len, _encbuf, _encbuf_len );
+ _buf = (char *) calloc(_buf_len, sizeof(char));
+ printf( "\n***** cyphertext *****\n" );
+ if( _buf )
+ {
+ oaes_sprintf( _buf, &_buf_len, _encbuf, _encbuf_len );
+ printf( "%s", _buf );
+ }
+ printf( "\n**********************\n" );
+ free( _buf );
+
+ oaes_sprintf( NULL, &_buf_len, _decbuf, _decbuf_len );
+ _buf = (char *) calloc(_buf_len, sizeof(char));
+ printf( "\n***** plaintext *****\n" );
+ if( _buf )
+ {
+ oaes_sprintf( _buf, &_buf_len, _decbuf, _decbuf_len );
+ printf( "%s", _buf );
+ }
+ printf( "\n**********************\n\n" );
+ free( _buf );
+
+ free( _encbuf );
+ free( _decbuf );
+ if( _key_data )
+ free( _key_data );
+ if( _bin_data )
+ free( _bin_data );
+
+ return (EXIT_SUCCESS);
+}