Make text appear in GUI console, Zip install works.
Move TW zip install code to C++ so that it can use the
ui->functions.
Bring in mincrypt code to fix a crash during signature
checking.
diff --git a/Android.mk b/Android.mk
index c8f453a..6d3be1d 100644
--- a/Android.mk
+++ b/Android.mk
@@ -35,7 +35,10 @@
firmware.c \
partition.cpp \
partitionmanager.cpp \
- mtdutils/mtdutils.c
+ mtdutils/mtdutils.c \
+ twinstall.cpp \
+ twmincrypt/twrsa.c \
+ twmincrypt/twsha.c
ifeq ($(TARGET_RECOVERY_REBOOT_SRC),)
LOCAL_SRC_FILES += reboot.c
@@ -64,7 +67,7 @@
LOCAL_SHARED_LIBRARIES :=
LOCAL_STATIC_LIBRARIES += libmtdutils
-LOCAL_STATIC_LIBRARIES += libext4_utils libminadbd libminzip libunz libmincrypt
+LOCAL_STATIC_LIBRARIES += libext4_utils libminadbd libminzip libunz
LOCAL_STATIC_LIBRARIES += libminuitwrp libpixelflinger_static libpng libjpegtwrp libgui
LOCAL_SHARED_LIBRARIES += libz libc libstlport libcutils libstdc++
diff --git a/common.h b/common.h
index 4122e40..37c0e4c 100644
--- a/common.h
+++ b/common.h
@@ -23,11 +23,12 @@
extern "C" {
#endif
-#define ui_print(...) fprintf(stdout, __VA_ARGS__)
-#define ui_print_overwrite(...) fprintf(stdout, __VA_ARGS__)
+#define ui_print(...) gui_print(__VA_ARGS__)
+#define ui_print_overwrite(...) gui_print_overwrite(__VA_ARGS__)
+#include "gui/gui.h"
// TODO: restore ui_print for LOGE
-#define LOGE(...) fprintf(stdout, "E:" __VA_ARGS__)
+#define LOGE(...) gui_print("E:" __VA_ARGS__)
#define LOGW(...) fprintf(stdout, "W:" __VA_ARGS__)
#define LOGI(...) fprintf(stdout, "I:" __VA_ARGS__)
diff --git a/extra-functions.c b/extra-functions.c
index 9157e23..e01ab83 100644
--- a/extra-functions.c
+++ b/extra-functions.c
@@ -222,487 +222,6 @@
return (pid == -1 ? -1 : pstat);
}
-char* get_path (char* path) {
- char *s;
-
- /* Go to the end of the string. */
- s = path + strlen(path) - 1;
-
- /* Strip off trailing /s (unless it is also the leading /). */
- while (path < s && s[0] == '/')
- s--;
-
- /* Strip the last component. */
- while (path <= s && s[0] != '/')
- s--;
-
- while (path < s && s[0] == '/')
- s--;
-
- if (s < path)
- return ".";
-
- s[1] = '\0';
- return path;
-}
-
-char* basename(char* name) {
- const char* base;
- for (base = name; *name; name++)
- {
- if(*name == '/')
- {
- base = name + 1;
- }
- }
- return (char *) base;
-}
-
-/*
- Checks md5 for a path
- Return values:
- -1 : MD5 does not exist
- 0 : Failed
- 1 : Success
-*/
-int check_md5(char* path) {
- int o;
- char cmd[PATH_MAX + 30];
- char md5file[PATH_MAX + 40];
- strcpy(md5file, path);
- strcat(md5file, ".md5");
- char dirpath[PATH_MAX];
- char* file;
- if (access(md5file, F_OK ) != -1) {
- strcpy(dirpath, md5file);
- get_path(dirpath);
- chdir(dirpath);
- file = basename(md5file);
- sprintf(cmd, "/sbin/busybox md5sum -c '%s'", file);
- FILE * cs = __popen(cmd, "r");
- char cs_s[PATH_MAX + 50];
- fgets(cs_s, PATH_MAX + 50, cs);
- char* OK = strstr(cs_s, "OK");
- if (OK != NULL) {
- printf("MD5 is good. returning 1\n");
- o = 1;
- }
- else {
- printf("MD5 is bad. return -2\n");
- o = -2;
- }
-
- __pclose(cs);
- }
- else {
- //No md5 file
- printf("setting o to -1\n");
- o = -1;
- }
-
- return o;
-}
-
-int TWtry_update_binary(const char *path, ZipArchive *zip, int* wipe_cache) {
- const ZipEntry* binary_entry =
- mzFindZipEntry(zip, ASSUMED_UPDATE_BINARY_NAME);
- if (binary_entry == NULL) {
- mzCloseZipArchive(zip);
- return INSTALL_CORRUPT;
- }
- const char* binary = "/tmp/update_binary";
- unlink(binary);
- int fd = creat(binary, 0755);
- if (fd < 0) {
- mzCloseZipArchive(zip);
- LOGE("Can't make %s\n", binary);
- return INSTALL_ERROR;
- }
- bool ok = mzExtractZipEntryToFile(zip, binary_entry, fd);
- close(fd);
- mzCloseZipArchive(zip);
-
- if (!ok) {
- LOGE("Can't copy %s\n", ASSUMED_UPDATE_BINARY_NAME);
- return INSTALL_ERROR;
- }
-
- int pipefd[2];
- pipe(pipefd);
-
- // When executing the update binary contained in the package, the
- // arguments passed are:
- //
- // - the version number for this interface
- //
- // - an fd to which the program can write in order to update the
- // progress bar. The program can write single-line commands:
- //
- // progress <frac> <secs>
- // fill up the next <frac> part of of the progress bar
- // over <secs> seconds. If <secs> is zero, use
- // set_progress commands to manually control the
- // progress of this segment of the bar
- //
- // set_progress <frac>
- // <frac> should be between 0.0 and 1.0; sets the
- // progress bar within the segment defined by the most
- // recent progress command.
- //
- // firmware <"hboot"|"radio"> <filename>
- // arrange to install the contents of <filename> in the
- // given partition on reboot.
- //
- // (API v2: <filename> may start with "PACKAGE:" to
- // indicate taking a file from the OTA package.)
- //
- // (API v3: this command no longer exists.)
- //
- // ui_print <string>
- // display <string> on the screen.
- //
- // - the name of the package zip file.
- //
-
- const char** args = (const char**)malloc(sizeof(char*) * 5);
- args[0] = binary;
- args[1] = EXPAND(RECOVERY_API_VERSION); // defined in Android.mk
- char* temp = (char*)malloc(10);
- sprintf(temp, "%d", pipefd[1]);
- args[2] = temp;
- args[3] = (char*)path;
- args[4] = NULL;
-
- pid_t pid = fork();
- if (pid == 0) {
- close(pipefd[0]);
- execv(binary, (char* const*)args);
- fprintf(stdout, "E:Can't run %s (error)\n", binary);
- _exit(-1);
- }
- close(pipefd[1]);
- *wipe_cache = 0;
-
- char buffer[1024];
- FILE* from_child = fdopen(pipefd[0], "r");
- LOGI("8\n");
- while (fgets(buffer, sizeof(buffer), from_child) != NULL) {
- char* command = strtok(buffer, " \n");
- if (command == NULL) {
- continue;
- } else if (strcmp(command, "progress") == 0) {
- char* fraction_s = strtok(NULL, " \n");
- char* seconds_s = strtok(NULL, " \n");
-
- float fraction = strtof(fraction_s, NULL);
- int seconds = strtol(seconds_s, NULL, 10);
-
- //ui->ShowProgress(fraction * (1-VERIFICATION_PROGRESS_FRACTION), seconds);
- } else if (strcmp(command, "set_progress") == 0) {
- char* fraction_s = strtok(NULL, " \n");
- float fraction = strtof(fraction_s, NULL);
- //ui->SetProgress(fraction);
- } else if (strcmp(command, "ui_print") == 0) {
- char* str = strtok(NULL, "\n");
- if (str) {
- //ui->Print("%s", str);
- } else {
- //ui->Print("\n");
- }
- } else if (strcmp(command, "wipe_cache") == 0) {
- *wipe_cache = 1;
- } else if (strcmp(command, "clear_display") == 0) {
- //ui->SetBackground(RecoveryUI::NONE);
- } else {
- LOGE("unknown command [%s]\n", command);
- }
- }
- fclose(from_child);
-
- int status;
- waitpid(pid, &status, 0);
- if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
- LOGE("Error in %s\n(Status %d)\n", path, WEXITSTATUS(status));
- return INSTALL_ERROR;
- }
- return INSTALL_SUCCESS;
-}
-
-// Look for an RSA signature embedded in the .ZIP file comment given
-// the path to the zip. Verify it matches one of the given public
-// keys.
-//
-// Return VERIFY_SUCCESS, VERIFY_FAILURE (if any error is encountered
-// or no key matches the signature).
-
-int TWverify_file(const char* path, const RSAPublicKey *pKeys, unsigned int numKeys) {
- //ui->SetProgress(0.0);
-
- FILE* f = fopen(path, "rb");
- if (f == NULL) {
- LOGE("failed to open %s (%s)\n", path, strerror(errno));
- return VERIFY_FAILURE;
- }
-
- // An archive with a whole-file signature will end in six bytes:
- //
- // (2-byte signature start) $ff $ff (2-byte comment size)
- //
- // (As far as the ZIP format is concerned, these are part of the
- // archive comment.) We start by reading this footer, this tells
- // us how far back from the end we have to start reading to find
- // the whole comment.
-
-#define FOOTER_SIZE 6
-
- if (fseek(f, -FOOTER_SIZE, SEEK_END) != 0) {
- LOGE("failed to seek in %s (%s)\n", path, strerror(errno));
- fclose(f);
- return VERIFY_FAILURE;
- }
-
- unsigned char footer[FOOTER_SIZE];
- if (fread(footer, 1, FOOTER_SIZE, f) != FOOTER_SIZE) {
- LOGE("failed to read footer from %s (%s)\n", path, strerror(errno));
- fclose(f);
- return VERIFY_FAILURE;
- }
-
- if (footer[2] != 0xff || footer[3] != 0xff) {
- fclose(f);
- return VERIFY_FAILURE;
- }
-
- size_t comment_size = footer[4] + (footer[5] << 8);
- size_t signature_start = footer[0] + (footer[1] << 8);
- LOGI("comment is %d bytes; signature %d bytes from end\n",
- comment_size, signature_start);
-
- if (signature_start - FOOTER_SIZE < RSANUMBYTES) {
- // "signature" block isn't big enough to contain an RSA block.
- LOGE("signature is too short\n");
- fclose(f);
- return VERIFY_FAILURE;
- }
-
-#define EOCD_HEADER_SIZE 22
-
- // The end-of-central-directory record is 22 bytes plus any
- // comment length.
- size_t eocd_size = comment_size + EOCD_HEADER_SIZE;
-
- if (fseek(f, -eocd_size, SEEK_END) != 0) {
- LOGE("failed to seek in %s (%s)\n", path, strerror(errno));
- fclose(f);
- return VERIFY_FAILURE;
- }
-
- // Determine how much of the file is covered by the signature.
- // This is everything except the signature data and length, which
- // includes all of the EOCD except for the comment length field (2
- // bytes) and the comment data.
- size_t signed_len = ftell(f) + EOCD_HEADER_SIZE - 2;
-
- unsigned char* eocd = (unsigned char*)malloc(eocd_size);
- if (eocd == NULL) {
- LOGE("malloc for EOCD record failed\n");
- fclose(f);
- return VERIFY_FAILURE;
- }
- if (fread(eocd, 1, eocd_size, f) != eocd_size) {
- LOGE("failed to read eocd from %s (%s)\n", path, strerror(errno));
- fclose(f);
- return VERIFY_FAILURE;
- }
-
- // If this is really is the EOCD record, it will begin with the
- // magic number $50 $4b $05 $06.
- if (eocd[0] != 0x50 || eocd[1] != 0x4b ||
- eocd[2] != 0x05 || eocd[3] != 0x06) {
- LOGE("signature length doesn't match EOCD marker\n");
- fclose(f);
- return VERIFY_FAILURE;
- }
-
- size_t i;
- for (i = 4; i < eocd_size-3; ++i) {
- if (eocd[i ] == 0x50 && eocd[i+1] == 0x4b &&
- eocd[i+2] == 0x05 && eocd[i+3] == 0x06) {
- // if the sequence $50 $4b $05 $06 appears anywhere after
- // the real one, minzip will find the later (wrong) one,
- // which could be exploitable. Fail verification if
- // this sequence occurs anywhere after the real one.
- LOGE("EOCD marker occurs after start of EOCD\n");
- fclose(f);
- return VERIFY_FAILURE;
- }
- }
-
-#define BUFFER_SIZE 4096
-
- SHA_CTX ctx;
- SHA_init(&ctx);
- unsigned char* buffer = (unsigned char*)malloc(BUFFER_SIZE);
- if (buffer == NULL) {
- LOGE("failed to alloc memory for sha1 buffer\n");
- fclose(f);
- return VERIFY_FAILURE;
- }
-
- double frac = -1.0;
- size_t so_far = 0;
- fseek(f, 0, SEEK_SET);
- while (so_far < signed_len) {
- size_t size = BUFFER_SIZE;
- if (signed_len - so_far < size) size = signed_len - so_far;
- if (fread(buffer, 1, size, f) != size) {
- LOGE("failed to read data from %s (%s)\n", path, strerror(errno));
- fclose(f);
- return VERIFY_FAILURE;
- }
- SHA_update(&ctx, buffer, size);
- so_far += size;
- double f = so_far / (double)signed_len;
- if (f > frac + 0.02 || size == so_far) {
- //ui->SetProgress(f);
- frac = f;
- }
- }
- fclose(f);
- free(buffer);
-
- const uint8_t* sha1 = SHA_final(&ctx);
- for (i = 0; i < numKeys; ++i) {
- // The 6 bytes is the "(signature_start) $ff $ff (comment_size)" that
- // the signing tool appends after the signature itself.
- if (RSA_verify(pKeys+i, eocd + eocd_size - 6 - RSANUMBYTES,
- RSANUMBYTES, sha1)) {
- LOGI("whole-file signature verified against key %d\n", i);
- free(eocd);
- return VERIFY_SUCCESS;
- }
- }
- free(eocd);
- LOGE("failed to verify whole-file signature\n");
- return VERIFY_FAILURE;
-}
-
-// Reads a file containing one or more public keys as produced by
-// DumpPublicKey: this is an RSAPublicKey struct as it would appear
-// as a C source literal, eg:
-//
-// "{64,0xc926ad21,{1795090719,...,-695002876},{-857949815,...,1175080310}}"
-//
-// (Note that the braces and commas in this example are actual
-// characters the parser expects to find in the file; the ellipses
-// indicate more numbers omitted from this example.)
-//
-// The file may contain multiple keys in this format, separated by
-// commas. The last key must not be followed by a comma.
-//
-// Returns NULL if the file failed to parse, or if it contain zero keys.
-static RSAPublicKey*
-TWload_keys(const char* filename, int* numKeys) {
- RSAPublicKey* out = NULL;
- *numKeys = 0;
-
- FILE* f = fopen(filename, "r");
- if (f == NULL) {
- LOGE("opening %s: ERROR\n", filename);
- goto exit;
- }
-
- {
- int i;
- bool done = false;
- while (!done) {
- ++*numKeys;
- out = (RSAPublicKey*)realloc(out, *numKeys * sizeof(RSAPublicKey));
- RSAPublicKey* key = out + (*numKeys - 1);
- if (fscanf(f, " { %i , 0x%x , { %u",
- &(key->len), &(key->n0inv), &(key->n[0])) != 3) {
- goto exit;
- }
- if (key->len != RSANUMWORDS) {
- LOGE("key length (%d) does not match expected size\n", key->len);
- goto exit;
- }
- for (i = 1; i < key->len; ++i) {
- if (fscanf(f, " , %u", &(key->n[i])) != 1) goto exit;
- }
- if (fscanf(f, " } , { %u", &(key->rr[0])) != 1) goto exit;
- for (i = 1; i < key->len; ++i) {
- if (fscanf(f, " , %u", &(key->rr[i])) != 1) goto exit;
- }
- fscanf(f, " } } ");
-
- // if the line ends in a comma, this file has more keys.
- switch (fgetc(f)) {
- case ',':
- // more keys to come.
- break;
-
- case EOF:
- done = true;
- break;
-
- default:
- LOGE("unexpected character between keys\n");
- goto exit;
- }
- }
- }
-
- fclose(f);
- return out;
-
-exit:
- if (f) fclose(f);
- free(out);
- *numKeys = 0;
- return NULL;
-}
-
-int TWinstall_zip(const char* path, int* wipe_cache) {
- int err;
-
- if (DataManager_GetIntValue(TW_SIGNED_ZIP_VERIFY_VAR)) {
- int numKeys;
- RSAPublicKey* loadedKeys = TWload_keys(PUBLIC_KEYS_FILE, &numKeys);
- if (loadedKeys == NULL) {
- LOGE("Failed to load keys\n");
- return -1;
- }
- LOGI("%d key(s) loaded from %s\n", numKeys, PUBLIC_KEYS_FILE);
-
- // Give verification half the progress bar...
- //ui->Print("Verifying update package...\n");
- //ui->SetProgressType(RecoveryUI::DETERMINATE);
- //ui->ShowProgress(VERIFICATION_PROGRESS_FRACTION, VERIFICATION_PROGRESS_TIME);
-
- err = TWverify_file(path, loadedKeys, numKeys);
- free(loadedKeys);
- LOGI("verify_file returned %d\n", err);
- if (err != VERIFY_SUCCESS) {
- LOGE("signature verification failed\n");
- return -1;
- }
- }
- /* Try to open the package.
- */
- ZipArchive zip;
- err = mzOpenZipArchive(path, &zip);
- if (err != 0) {
- LOGE("Can't open %s\n(%s)\n", path, err != -1 ? strerror(err) : "bad");
- return INSTALL_CORRUPT;
- }
-
- /* Verify and install the contents of the package.
- */
- //ui->Print("Installing update...\n");
- return TWtry_update_binary(path, &zip, wipe_cache);
-}
-
//partial kangbang from system/vold
#ifndef CUSTOM_LUN_FILE
#define CUSTOM_LUN_FILE "/sys/devices/platform/usb_mass_storage/lun%d/file"
diff --git a/extra-functions.h b/extra-functions.h
index d3a43cd..6145e77 100644
--- a/extra-functions.h
+++ b/extra-functions.h
@@ -8,12 +8,6 @@
FILE * __popen(const char *program, const char *type);
int __pclose(FILE *iop);
-// Install Zip functions
-int TWtry_update_binary(const char *path, ZipArchive *zip, int* wipe_cache);
-static RSAPublicKey* TWload_keys(const char* filename, int* numKeys);
-int TWverify_file(const char* path, const RSAPublicKey *pKeys, unsigned int numKeys);
-int TWinstall_zip(const char* path, int* wipe_cache);
-
void wipe_dalvik_cache();
void wipe_battery_stats();
void wipe_rotate_data();
diff --git a/gui/action.cpp b/gui/action.cpp
index 3e19a61..a1f7dd3 100644
--- a/gui/action.cpp
+++ b/gui/action.cpp
@@ -28,7 +28,9 @@
#include "../recovery_ui.h"
#include "../extra-functions.h"
#include "../variables.h"
+#include "../twinstall.h"
+int TWinstall_zip(const char* path, int* wipe_cache);
void fix_perms();
void wipe_dalvik_cache(void);
int check_backup_name(int show_error);
@@ -656,6 +658,7 @@
ui_print("TWRP injection complete.\n");
}
}
+ PartitionManager.Update_System_Details();
operation_end(ret_val, simulate);
return 0;
}
diff --git a/gui/console.cpp b/gui/console.cpp
index 6d53ed1..b7713c7 100644
--- a/gui/console.cpp
+++ b/gui/console.cpp
@@ -38,6 +38,8 @@
vsnprintf(buf, 512, fmt, ap);
va_end(ap);
+ fputs(buf, stdout);
+
char *start, *next;
if (buf[0] == '\n' && strlen(buf) < 2) {
@@ -75,6 +77,8 @@
vsnprintf(buf, 512, fmt, ap);
va_end(ap);
+ fputs(buf, stdout);
+
// Pop the last line, and we can continue
if (!gConsole.empty()) gConsole.pop_back();
diff --git a/gui/gui.h b/gui/gui.h
index f6745d7..948e11b 100644
--- a/gui/gui.h
+++ b/gui/gui.h
@@ -5,6 +5,8 @@
int gui_init();
int gui_loadResources();
int gui_start();
+void gui_print(const char *fmt, ...);
+void gui_print_overwrite(const char *fmt, ...);
#endif // _GUI_HEADER
diff --git a/install.cpp b/install.cpp
index 8d36cb5..4d73aa9 100644
--- a/install.cpp
+++ b/install.cpp
@@ -46,7 +46,7 @@
static const float DEFAULT_IMAGE_PROGRESS_FRACTION = 0.1;
// If the package contains an update binary, extract it and run it.
-extern "C" int
+static int
try_update_binary(const char *path, ZipArchive *zip, int* wipe_cache) {
const ZipEntry* binary_entry =
mzFindZipEntry(zip, ASSUMED_UPDATE_BINARY_NAME);
diff --git a/partitionmanager.cpp b/partitionmanager.cpp
index 47cc847..21752a0 100644
--- a/partitionmanager.cpp
+++ b/partitionmanager.cpp
@@ -629,7 +629,7 @@
std::vector<TWPartition*>::iterator iter;
int data_size = 0;
- LOGI("Updating system details...\n");
+ ui_print("Updating partition details...\n");
for (iter = Partitions.begin(); iter != Partitions.end(); iter++) {
if ((*iter)->Can_Be_Mounted) {
(*iter)->Update_Size(true);
@@ -696,7 +696,7 @@
DataManager::SetValue(TW_IS_DECRYPTED, 1);
dat->Is_Decrypted = true;
dat->Decrypted_Block_Device = crypto_blkdev;
- LOGI("Data successfully decrypted, new block device: '%s'\n", crypto_blkdev);
+ ui_print("Data successfully decrypted, new block device: '%s'\n", crypto_blkdev);
// Sleep for a bit so that the device will be ready
sleep(1);
Update_System_Details();
diff --git a/prebuilt/bbinstall.sh b/prebuilt/bbinstall.sh
index c59fec2..2aab969 100755
--- a/prebuilt/bbinstall.sh
+++ b/prebuilt/bbinstall.sh
@@ -1,5 +1,10 @@
#!/sbin/sh
+if [ -f "/sbin/[" ];
+then
+exit
+fi
+
for cmd in $(/sbin/busybox --list); do
/sbin/busybox ln -s /sbin/busybox /sbin/$cmd
done
diff --git a/recovery.cpp b/recovery.cpp
index 450f363..567a42e 100644
--- a/recovery.cpp
+++ b/recovery.cpp
@@ -54,7 +54,6 @@
#include "variables.h"
TWPartitionManager PartitionManager;
-char device_id[64];
struct selabel_handle *sehandle;
@@ -793,8 +792,8 @@
// set by init
umask(0);
- //Device* device = make_device();
- //ui = device->GetUI();
+ Device* device = make_device();
+ ui = device->GetUI();
//ui->Init();
//ui->SetBackground(RecoveryUI::NONE);
diff --git a/screen_ui.cpp b/screen_ui.cpp
index 60a0ad4..4441f7a 100644
--- a/screen_ui.cpp
+++ b/screen_ui.cpp
@@ -36,7 +36,9 @@
extern "C" {
#include "minuitwrp/minui.h"
int twgr_text(int x, int y, const char *s);
+#include "gui/gui.h"
}
+#include "data.hpp"
#define CHAR_WIDTH 10
#define CHAR_HEIGHT 18
@@ -220,7 +222,7 @@
// Updates only the progress bar, if possible, otherwise redraws the screen.
// Should only be called with updateMutex locked.
void ScreenRecoveryUI::update_progress_locked()
-{
+{return;
if (show_text || !pagesIdentical) {
draw_screen_locked(); // Must redraw the whole screen
pagesIdentical = true;
@@ -364,6 +366,9 @@
void ScreenRecoveryUI::ShowProgress(float portion, float seconds)
{
+ DataManager::SetValue("ui_progress_portion", (float)(portion * 100.0));
+ DataManager::SetValue("ui_progress_frames", seconds * 30);
+
pthread_mutex_lock(&updateMutex);
progressBarType = DETERMINATE;
progressScopeStart += progressScopeSize;
@@ -377,6 +382,8 @@
void ScreenRecoveryUI::SetProgress(float fraction)
{
+ DataManager::SetValue("ui_progress", (float) (fraction * 100.0)); return;
+
pthread_mutex_lock(&updateMutex);
if (fraction < 0.0) fraction = 0.0;
if (fraction > 1.0) fraction = 1.0;
@@ -400,6 +407,9 @@
vsnprintf(buf, 256, fmt, ap);
va_end(ap);
+ gui_print("%s", buf);
+ return;
+
fputs(buf, stdout);
// This can get called before ui_init(), so be careful.
diff --git a/twinstall.cpp b/twinstall.cpp
new file mode 100644
index 0000000..0c3d837
--- /dev/null
+++ b/twinstall.cpp
@@ -0,0 +1,580 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include <string.h>
+#include <stdio.h>
+
+#include "common.h"
+#include "twmincrypt/twrsa.h"
+#include "twmincrypt/twsha.h"
+#include "minui/minui.h"
+#include "minzip/SysUtil.h"
+#include "minzip/Zip.h"
+#include "mtdutils/mounts.h"
+#include "mtdutils/mtdutils.h"
+#include "roots.h"
+#include "verifier.h"
+#include "ui.h"
+#include "variables.h"
+#include "data.hpp"
+#include "partitions.hpp"
+
+extern "C" {
+#include "extra-functions.h"
+int __system(const char *command);
+};
+
+extern RecoveryUI* ui;
+
+#define ASSUMED_UPDATE_BINARY_NAME "META-INF/com/google/android/update-binary"
+#define PUBLIC_KEYS_FILE "/res/keys"
+
+// Default allocation of progress bar segments to operations
+static const int VERIFICATION_PROGRESS_TIME = 60;
+static const float VERIFICATION_PROGRESS_FRACTION = 0.25;
+static const float DEFAULT_FILES_PROGRESS_FRACTION = 0.4;
+static const float DEFAULT_IMAGE_PROGRESS_FRACTION = 0.1;
+
+enum { INSTALL_SUCCESS, INSTALL_ERROR, INSTALL_CORRUPT };
+
+// Look for an RSA signature embedded in the .ZIP file comment given
+// the path to the zip. Verify it matches one of the given public
+// keys.
+//
+// Return VERIFY_SUCCESS, VERIFY_FAILURE (if any error is encountered
+// or no key matches the signature).
+
+int TWverify_file(const char* path, const RSAPublicKey *pKeys, unsigned int numKeys) {
+ ui->SetProgress(0.0);
+
+ FILE* f = fopen(path, "rb");
+ if (f == NULL) {
+ LOGE("failed to open %s (%s)\n", path, strerror(errno));
+ return VERIFY_FAILURE;
+ }
+
+ // An archive with a whole-file signature will end in six bytes:
+ //
+ // (2-byte signature start) $ff $ff (2-byte comment size)
+ //
+ // (As far as the ZIP format is concerned, these are part of the
+ // archive comment.) We start by reading this footer, this tells
+ // us how far back from the end we have to start reading to find
+ // the whole comment.
+
+#define FOOTER_SIZE 6
+
+ if (fseek(f, -FOOTER_SIZE, SEEK_END) != 0) {
+ LOGE("failed to seek in %s (%s)\n", path, strerror(errno));
+ fclose(f);
+ return VERIFY_FAILURE;
+ }
+
+ unsigned char footer[FOOTER_SIZE];
+ if (fread(footer, 1, FOOTER_SIZE, f) != FOOTER_SIZE) {
+ LOGE("failed to read footer from %s (%s)\n", path, strerror(errno));
+ fclose(f);
+ return VERIFY_FAILURE;
+ }
+
+ if (footer[2] != 0xff || footer[3] != 0xff) {
+ fclose(f);
+ return VERIFY_FAILURE;
+ }
+
+ size_t comment_size = footer[4] + (footer[5] << 8);
+ size_t signature_start = footer[0] + (footer[1] << 8);
+ LOGI("comment is %d bytes; signature %d bytes from end\n",
+ comment_size, signature_start);
+
+ if (signature_start - FOOTER_SIZE < RSANUMBYTES) {
+ // "signature" block isn't big enough to contain an RSA block.
+ LOGE("signature is too short\n");
+ fclose(f);
+ return VERIFY_FAILURE;
+ }
+
+#define EOCD_HEADER_SIZE 22
+
+ // The end-of-central-directory record is 22 bytes plus any
+ // comment length.
+ size_t eocd_size = comment_size + EOCD_HEADER_SIZE;
+
+ if (fseek(f, -eocd_size, SEEK_END) != 0) {
+ LOGE("failed to seek in %s (%s)\n", path, strerror(errno));
+ fclose(f);
+ return VERIFY_FAILURE;
+ }
+
+ // Determine how much of the file is covered by the signature.
+ // This is everything except the signature data and length, which
+ // includes all of the EOCD except for the comment length field (2
+ // bytes) and the comment data.
+ size_t signed_len = ftell(f) + EOCD_HEADER_SIZE - 2;
+
+ unsigned char* eocd = (unsigned char*)malloc(eocd_size);
+ if (eocd == NULL) {
+ LOGE("malloc for EOCD record failed\n");
+ fclose(f);
+ return VERIFY_FAILURE;
+ }
+ if (fread(eocd, 1, eocd_size, f) != eocd_size) {
+ LOGE("failed to read eocd from %s (%s)\n", path, strerror(errno));
+ fclose(f);
+ return VERIFY_FAILURE;
+ }
+
+ // If this is really is the EOCD record, it will begin with the
+ // magic number $50 $4b $05 $06.
+ if (eocd[0] != 0x50 || eocd[1] != 0x4b ||
+ eocd[2] != 0x05 || eocd[3] != 0x06) {
+ LOGE("signature length doesn't match EOCD marker\n");
+ fclose(f);
+ return VERIFY_FAILURE;
+ }
+
+ size_t i;
+ for (i = 4; i < eocd_size-3; ++i) {
+ if (eocd[i ] == 0x50 && eocd[i+1] == 0x4b &&
+ eocd[i+2] == 0x05 && eocd[i+3] == 0x06) {
+ // if the sequence $50 $4b $05 $06 appears anywhere after
+ // the real one, minzip will find the later (wrong) one,
+ // which could be exploitable. Fail verification if
+ // this sequence occurs anywhere after the real one.
+ LOGE("EOCD marker occurs after start of EOCD\n");
+ fclose(f);
+ return VERIFY_FAILURE;
+ }
+ }
+
+#define BUFFER_SIZE 4096
+
+ SHA_CTX ctx;
+ SHA_init(&ctx);
+ unsigned char* buffer = (unsigned char*)malloc(BUFFER_SIZE);
+ if (buffer == NULL) {
+ LOGE("failed to alloc memory for sha1 buffer\n");
+ fclose(f);
+ return VERIFY_FAILURE;
+ }
+
+ double frac = -1.0;
+ size_t so_far = 0;
+ fseek(f, 0, SEEK_SET);
+ while (so_far < signed_len) {
+ size_t size = BUFFER_SIZE;
+ if (signed_len - so_far < size) size = signed_len - so_far;
+ if (fread(buffer, 1, size, f) != size) {
+ LOGE("failed to read data from %s (%s)\n", path, strerror(errno));
+ fclose(f);
+ return VERIFY_FAILURE;
+ }
+ SHA_update(&ctx, buffer, size);
+ so_far += size;
+ double f = so_far / (double)signed_len;
+ if (f > frac + 0.02 || size == so_far) {
+ ui->SetProgress(f);
+ frac = f;
+ }
+ }
+ fclose(f);
+ free(buffer);
+
+ const uint8_t* sha1 = SHA_final(&ctx);
+ for (i = 0; i < numKeys; ++i) {
+ // The 6 bytes is the "(signature_start) $ff $ff (comment_size)" that
+ // the signing tool appends after the signature itself.
+ if (RSA_verify(pKeys+i, eocd + eocd_size - 6 - RSANUMBYTES,
+ RSANUMBYTES, sha1)) {
+ LOGI("whole-file signature verified against key %d\n", i);
+ free(eocd);
+ return VERIFY_SUCCESS;
+ }
+ }
+ free(eocd);
+ LOGE("failed to verify whole-file signature\n");
+ return VERIFY_FAILURE;
+}
+
+// If the package contains an update binary, extract it and run it.
+static int
+try_update_binary(const char *path, ZipArchive *zip, int* wipe_cache) {
+ const ZipEntry* binary_entry =
+ mzFindZipEntry(zip, ASSUMED_UPDATE_BINARY_NAME);
+ if (binary_entry == NULL) {
+ mzCloseZipArchive(zip);
+ return INSTALL_CORRUPT;
+ }
+
+ const char* binary = "/tmp/update_binary";
+ unlink(binary);
+ int fd = creat(binary, 0755);
+ if (fd < 0) {
+ mzCloseZipArchive(zip);
+ LOGE("Can't make %s\n", binary);
+ return INSTALL_ERROR;
+ }
+ bool ok = mzExtractZipEntryToFile(zip, binary_entry, fd);
+ close(fd);
+ mzCloseZipArchive(zip);
+
+ if (!ok) {
+ LOGE("Can't copy %s\n", ASSUMED_UPDATE_BINARY_NAME);
+ return INSTALL_ERROR;
+ }
+
+ int pipefd[2];
+ pipe(pipefd);
+
+ // When executing the update binary contained in the package, the
+ // arguments passed are:
+ //
+ // - the version number for this interface
+ //
+ // - an fd to which the program can write in order to update the
+ // progress bar. The program can write single-line commands:
+ //
+ // progress <frac> <secs>
+ // fill up the next <frac> part of of the progress bar
+ // over <secs> seconds. If <secs> is zero, use
+ // set_progress commands to manually control the
+ // progress of this segment of the bar
+ //
+ // set_progress <frac>
+ // <frac> should be between 0.0 and 1.0; sets the
+ // progress bar within the segment defined by the most
+ // recent progress command.
+ //
+ // firmware <"hboot"|"radio"> <filename>
+ // arrange to install the contents of <filename> in the
+ // given partition on reboot.
+ //
+ // (API v2: <filename> may start with "PACKAGE:" to
+ // indicate taking a file from the OTA package.)
+ //
+ // (API v3: this command no longer exists.)
+ //
+ // ui_print <string>
+ // display <string> on the screen.
+ //
+ // - the name of the package zip file.
+ //
+
+ const char** args = (const char**)malloc(sizeof(char*) * 5);
+ args[0] = binary;
+ args[1] = EXPAND(RECOVERY_API_VERSION); // defined in Android.mk
+ char* temp = (char*)malloc(10);
+ sprintf(temp, "%d", pipefd[1]);
+ args[2] = temp;
+ args[3] = (char*)path;
+ args[4] = NULL;
+
+ pid_t pid = fork();
+ if (pid == 0) {
+ close(pipefd[0]);
+ execv(binary, (char* const*)args);
+ fprintf(stdout, "E:Can't run %s (%s)\n", binary, strerror(errno));
+ _exit(-1);
+ }
+ close(pipefd[1]);
+
+ *wipe_cache = 0;
+
+ char buffer[1024];
+ FILE* from_child = fdopen(pipefd[0], "r");
+ while (fgets(buffer, sizeof(buffer), from_child) != NULL) {
+ char* command = strtok(buffer, " \n");
+ if (command == NULL) {
+ continue;
+ } else if (strcmp(command, "progress") == 0) {
+ char* fraction_s = strtok(NULL, " \n");
+ char* seconds_s = strtok(NULL, " \n");
+
+ float fraction = strtof(fraction_s, NULL);
+ int seconds = strtol(seconds_s, NULL, 10);
+
+ ui->ShowProgress(fraction * (1-VERIFICATION_PROGRESS_FRACTION), seconds);
+ } else if (strcmp(command, "set_progress") == 0) {
+ char* fraction_s = strtok(NULL, " \n");
+ float fraction = strtof(fraction_s, NULL);
+ ui->SetProgress(fraction);
+ } else if (strcmp(command, "ui_print") == 0) {
+ char* str = strtok(NULL, "\n");
+ if (str) {
+ ui->Print("%s", str);
+ } else {
+ ui->Print("\n");
+ }
+ } else if (strcmp(command, "wipe_cache") == 0) {
+ *wipe_cache = 1;
+ } else if (strcmp(command, "clear_display") == 0) {
+ //ui->SetBackground(RecoveryUI::NONE);
+ } else {
+ LOGE("unknown command [%s]\n", command);
+ }
+ }
+ fclose(from_child);
+
+ int status;
+ waitpid(pid, &status, 0);
+ if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
+ LOGE("Error in %s\n(Status %d)\n", path, WEXITSTATUS(status));
+ return INSTALL_ERROR;
+ }
+
+ return INSTALL_SUCCESS;
+}
+
+// Reads a file containing one or more public keys as produced by
+// DumpPublicKey: this is an RSAPublicKey struct as it would appear
+// as a C source literal, eg:
+//
+// "{64,0xc926ad21,{1795090719,...,-695002876},{-857949815,...,1175080310}}"
+//
+// (Note that the braces and commas in this example are actual
+// characters the parser expects to find in the file; the ellipses
+// indicate more numbers omitted from this example.)
+//
+// The file may contain multiple keys in this format, separated by
+// commas. The last key must not be followed by a comma.
+//
+// Returns NULL if the file failed to parse, or if it contain zero keys.
+static RSAPublicKey*
+load_keys(const char* filename, int* numKeys) {
+ RSAPublicKey* out = NULL;
+ *numKeys = 0;
+
+ FILE* f = fopen(filename, "r");
+ if (f == NULL) {
+ LOGE("opening %s: %s\n", filename, strerror(errno));
+ goto exit;
+ }
+
+ {
+ int i;
+ bool done = false;
+ while (!done) {
+ ++*numKeys;
+ out = (RSAPublicKey*)realloc(out, *numKeys * sizeof(RSAPublicKey));
+ RSAPublicKey* key = out + (*numKeys - 1);
+ if (fscanf(f, " { %i , 0x%x , { %u",
+ &(key->len), &(key->n0inv), &(key->n[0])) != 3) {
+ goto exit;
+ }
+ if (key->len != RSANUMWORDS) {
+ LOGE("key length (%d) does not match expected size\n", key->len);
+ goto exit;
+ }
+ for (i = 1; i < key->len; ++i) {
+ if (fscanf(f, " , %u", &(key->n[i])) != 1) goto exit;
+ }
+ if (fscanf(f, " } , { %u", &(key->rr[0])) != 1) goto exit;
+ for (i = 1; i < key->len; ++i) {
+ if (fscanf(f, " , %u", &(key->rr[i])) != 1) goto exit;
+ }
+ fscanf(f, " } } ");
+
+ // if the line ends in a comma, this file has more keys.
+ switch (fgetc(f)) {
+ case ',':
+ // more keys to come.
+ break;
+
+ case EOF:
+ done = true;
+ break;
+
+ default:
+ LOGE("unexpected character between keys\n");
+ goto exit;
+ }
+ }
+ }
+
+ fclose(f);
+ return out;
+
+exit:
+ if (f) fclose(f);
+ free(out);
+ *numKeys = 0;
+ return NULL;
+}
+
+char* get_path (char* path) {
+ char *s;
+
+ /* Go to the end of the string. */
+ s = path + strlen(path) - 1;
+
+ /* Strip off trailing /s (unless it is also the leading /). */
+ while (path < s && s[0] == '/')
+ s--;
+
+ /* Strip the last component. */
+ while (path <= s && s[0] != '/')
+ s--;
+
+ while (path < s && s[0] == '/')
+ s--;
+
+ if (s < path)
+ return (char*)(".");
+
+ s[1] = '\0';
+ return path;
+}
+
+/*
+ Checks md5 for a path
+ Return values:
+ -1 : MD5 does not exist
+ 0 : Failed
+ 1 : Success
+*/
+int check_md5(const char* path) {
+ FILE* fp;
+ char command[255], line[512], actual_md5[512], md5[512];
+ char md5file[PATH_MAX + 40];
+ char *ptr;
+ unsigned int line_len, index = 0;
+ struct stat st;
+
+ // Check to see if the filename.zip.md5 file exists
+ strcpy(md5file, path);
+ strcat(md5file, ".md5");
+ if (stat(md5file, &st) != 0)
+ return -1; // no MD5 file found
+
+ // Dump the md5 of the zip to a text file for reading
+ sprintf(command, "md5sum '%s' > /tmp/md5output.txt", path);
+ __system(command);
+ fp = fopen("/tmp/md5output.txt", "rt");
+ if (fp == NULL) {
+ LOGI("Unable to open /tmp/md5output.txt.\n");
+ return false;
+ }
+
+ while (fgets(line, sizeof(line), fp) != NULL)
+ {
+ line_len = strlen(line);
+ for (index = 0; index < line_len; index++) {
+ if (line[index] <= 32)
+ line[index] = '\0';
+ }
+ strcpy(actual_md5, line);
+ break;
+ }
+ fclose(fp);
+
+ // Read the filename.zip.md5 file
+ fp = fopen(md5file, "rt");
+ if (fp == NULL) {
+ LOGI("Unable to open '%s'.\n", md5file);
+ return false;
+ }
+
+ while (fgets(line, sizeof(line), fp) != NULL)
+ {
+ line_len = strlen(line);
+ for (index = 0; index < line_len; index++) {
+ if (line[index] <= 32)
+ line[index] = '\0';
+ }
+ strcpy(md5, line);
+ break;
+ }
+ fclose(fp);
+
+ // Comare the 2 MD5 values
+ if (strcmp(actual_md5, md5) == 0)
+ return 1;
+ LOGI("MD5 did not match: '%s' != '%s'\n", actual_md5, md5);
+ return 0;
+}
+
+extern "C" int TWinstall_zip(const char* path, int* wipe_cache) {
+ int err, zip_verify, md5_return, md5_verify;
+
+ ui_print("Installing '%s'...\n", path);
+
+ if (!PartitionManager.Mount_By_Path(path, 0)) {
+ LOGE("Failed to mount '%s'\n", path);
+ return -1;
+ }
+
+ ui_print("Checking for MD5 file...\n");
+ md5_return = check_md5(path);
+ if (md5_return == 0) {
+ // MD5 did not match.
+ LOGE("Zip MD5 does not match.\nUnable to install zip.\n");
+ return INSTALL_CORRUPT;
+ } else if (md5_return == -1) {
+ DataManager::GetValue(TW_FORCE_MD5_CHECK_VAR, md5_verify);
+ if (md5_verify == 1) {
+ // Forced MD5 checking is on and no MD5 file found.
+ LOGE("No MD5 file found for '%s'.\nDisable force MD5 check to avoid this error.\n", path);
+ return INSTALL_CORRUPT;
+ } else
+ ui_print("No MD5 file found, this is not an error.\n");
+ } else if (md5_return == 1)
+ ui_print("Zip MD5 matched.\n"); // MD5 found and matched.
+
+ DataManager::GetValue(TW_SIGNED_ZIP_VERIFY_VAR, zip_verify);
+ if (zip_verify) {
+ ui_print("Verifying zip signature...\n");
+ int numKeys;
+ RSAPublicKey* loadedKeys = load_keys(PUBLIC_KEYS_FILE, &numKeys);
+ if (loadedKeys == NULL) {
+ LOGE("Failed to load keys\n");
+ return -1;
+ }
+ LOGI("%d key(s) loaded from %s\n", numKeys, PUBLIC_KEYS_FILE);
+
+ // Give verification half the progress bar...
+ ui->Print("Verifying update package...\n");
+ ui->SetProgressType(RecoveryUI::DETERMINATE);
+ ui->ShowProgress(VERIFICATION_PROGRESS_FRACTION, VERIFICATION_PROGRESS_TIME);
+
+ err = TWverify_file(path, loadedKeys, numKeys);
+ free(loadedKeys);
+ LOGI("verify_file returned %d\n", err);
+ if (err != VERIFY_SUCCESS) {
+ LOGE("signature verification failed\n");
+ return -1;
+ }
+ }
+ /* Try to open the package.
+ */
+ ZipArchive zip;
+ err = mzOpenZipArchive(path, &zip);
+ if (err != 0) {
+ LOGE("Can't open %s\n(%s)\n", path, err != -1 ? strerror(err) : "bad");
+ return INSTALL_CORRUPT;
+ }
+
+ /* Verify and install the contents of the package.
+ */
+ return try_update_binary(path, &zip, wipe_cache);
+}
diff --git a/twinstall.h b/twinstall.h
new file mode 100644
index 0000000..8fd940e
--- /dev/null
+++ b/twinstall.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef RECOVERY_INSTALL_H_
+#define RECOVERY_INSTALL_H_
+
+#include "common.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int TWinstall_zip(const char* path, int* wipe_cache);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // RECOVERY_INSTALL_H_
diff --git a/twmincrypt/twrsa.c b/twmincrypt/twrsa.c
new file mode 100644
index 0000000..52d6bfb
--- /dev/null
+++ b/twmincrypt/twrsa.c
@@ -0,0 +1,199 @@
+/* rsa.c
+**
+** Copyright 2008, The Android Open Source Project
+**
+** 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.
+** * Neither the name of Google Inc. nor the names of its contributors may
+** be used to endorse or promote products derived from this software
+** without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY Google Inc. ``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 Google Inc. 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 "twrsa.h"
+#include "twsha.h"
+#include "common.h"
+
+/* a[] -= mod */
+static void subM(const RSAPublicKey *key, uint32_t *a) {
+ int64_t A = 0;
+ int i;
+ for (i = 0; i < key->len; ++i) {
+ A += (uint64_t)a[i] - key->n[i];
+ a[i] = (uint32_t)A;
+ A >>= 32;
+ }
+}
+
+/* return a[] >= mod */
+static int geM(const RSAPublicKey *key, const uint32_t *a) {
+ int i;
+ for (i = key->len; i;) {
+ --i;
+ if (a[i] < key->n[i]) return 0;
+ if (a[i] > key->n[i]) return 1;
+ }
+ return 1; /* equal */
+}
+
+/* montgomery c[] += a * b[] / R % mod */
+static void montMulAdd(const RSAPublicKey *key,
+ uint32_t* c,
+ const uint32_t a,
+ const uint32_t* b) {
+ uint64_t A = (uint64_t)a * b[0] + c[0];
+ uint32_t d0 = (uint32_t)A * key->n0inv;
+ uint64_t B = (uint64_t)d0 * key->n[0] + (uint32_t)A;
+ int i;
+
+ for (i = 1; i < key->len; ++i) {
+ A = (A >> 32) + (uint64_t)a * b[i] + c[i];
+ B = (B >> 32) + (uint64_t)d0 * key->n[i] + (uint32_t)A;
+ c[i - 1] = (uint32_t)B;
+ }
+
+ A = (A >> 32) + (B >> 32);
+
+ c[i - 1] = (uint32_t)A;
+
+ if (A >> 32) {
+ subM(key, c);
+ }
+}
+
+/* montgomery c[] = a[] * b[] / R % mod */
+static void montMul(const RSAPublicKey *key,
+ uint32_t* c,
+ const uint32_t* a,
+ const uint32_t* b) {
+ int i;
+ for (i = 0; i < key->len; ++i) {
+ c[i] = 0;
+ }
+ for (i = 0; i < key->len; ++i) {
+ montMulAdd(key, c, a[i], b);
+ }
+}
+
+/* In-place public exponentiation.
+** Input and output big-endian byte array in inout.
+*/
+static void modpow3(const RSAPublicKey *key,
+ uint8_t* inout) {
+ uint32_t a[RSANUMWORDS];
+ uint32_t aR[RSANUMWORDS];
+ uint32_t aaR[RSANUMWORDS];
+ uint32_t *aaa = aR; /* Re-use location. */
+ int i;
+
+ /* Convert from big endian byte array to little endian word array. */
+ for (i = 0; i < key->len; ++i) {
+ uint32_t tmp =
+ (inout[((key->len - 1 - i) * 4) + 0] << 24) |
+ (inout[((key->len - 1 - i) * 4) + 1] << 16) |
+ (inout[((key->len - 1 - i) * 4) + 2] << 8) |
+ (inout[((key->len - 1 - i) * 4) + 3] << 0);
+ a[i] = tmp;
+ }
+
+ montMul(key, aR, a, key->rr); /* aR = a * RR / R mod M */
+ montMul(key, aaR, aR, aR); /* aaR = aR * aR / R mod M */
+ montMul(key, aaa, aaR, a); /* aaa = aaR * a / R mod M */
+
+ /* Make sure aaa < mod; aaa is at most 1x mod too large. */
+ if (geM(key, aaa)) {
+ subM(key, aaa);
+ }
+
+ /* Convert to bigendian byte array */
+ for (i = key->len - 1; i >= 0; --i) {
+ uint32_t tmp = aaa[i];
+ *inout++ = tmp >> 24;
+ *inout++ = tmp >> 16;
+ *inout++ = tmp >> 8;
+ *inout++ = tmp >> 0;
+ }
+}
+
+/* Expected PKCS1.5 signature padding bytes, for a keytool RSA signature.
+** Has the 0-length optional parameter encoded in the ASN1 (as opposed to the
+** other flavor which omits the optional parameter entirely). This code does not
+** accept signatures without the optional parameter.
+*/
+static const uint8_t padding[RSANUMBYTES - SHA_DIGEST_SIZE] = {
+ 0x00,0x01,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+ 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+ 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+ 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+ 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+ 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+ 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+ 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+ 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+ 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+ 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+ 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+ 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+ 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+ 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+ 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+ 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,
+ 0x30,0x21,0x30,0x09,0x06,0x05,0x2b,0x0e,0x03,0x02,0x1a,0x05,0x00,
+ 0x04,0x14
+};
+
+/* Verify a 2048 bit RSA PKCS1.5 signature against an expected SHA-1 hash.
+** Returns 0 on failure, 1 on success.
+*/
+int RSA_verify(const RSAPublicKey *key,
+ const uint8_t *signature,
+ const int len,
+ const uint8_t *sha) {
+ uint8_t buf[RSANUMBYTES];
+ int i;
+
+ if (key->len != RSANUMWORDS) {
+ return 0; /* Wrong key passed in. */
+ }
+
+ if (len != sizeof(buf)) {
+ return 0; /* Wrong input length. */
+ }
+
+ for (i = 0; i < len; ++i) {
+ buf[i] = signature[i];
+ }
+
+ modpow3(key, buf);
+
+ /* Check pkcs1.5 padding bytes. */
+ for (i = 0; i < (int) sizeof(padding); ++i) {
+ if (buf[i] != padding[i]) {
+ return 0;
+ }
+ }
+
+ /* Check sha digest matches. */
+ for (; i < len; ++i) {
+ if (buf[i] != *sha++) {
+ return 0;
+ }
+ }
+
+ return 1;
+}
diff --git a/twmincrypt/twrsa.h b/twmincrypt/twrsa.h
new file mode 100644
index 0000000..7d7d571
--- /dev/null
+++ b/twmincrypt/twrsa.h
@@ -0,0 +1,56 @@
+/* rsa.h
+**
+** Copyright 2008, The Android Open Source Project
+**
+** 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.
+** * Neither the name of Google Inc. nor the names of its contributors may
+** be used to endorse or promote products derived from this software
+** without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY Google Inc. ``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 Google Inc. 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 _EMBEDDED_RSA_H_
+#define _EMBEDDED_RSA_H_
+
+#include <inttypes.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define RSANUMBYTES 256 /* 2048 bit key length */
+#define RSANUMWORDS (RSANUMBYTES / sizeof(uint32_t))
+
+typedef struct RSAPublicKey {
+ int len; /* Length of n[] in number of uint32_t */
+ uint32_t n0inv; /* -1 / n[0] mod 2^32 */
+ uint32_t n[RSANUMWORDS]; /* modulus as little endian array */
+ uint32_t rr[RSANUMWORDS]; /* R^2 as little endian array */
+} RSAPublicKey;
+
+int RSA_verify(const RSAPublicKey *key,
+ const uint8_t* signature,
+ const int len,
+ const uint8_t* sha);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/twmincrypt/twsha.c b/twmincrypt/twsha.c
new file mode 100644
index 0000000..ac712c2
--- /dev/null
+++ b/twmincrypt/twsha.c
@@ -0,0 +1,307 @@
+/* sha.c
+**
+** Copyright 2008, The Android Open Source Project
+**
+** 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.
+** * Neither the name of Google Inc. nor the names of its contributors may
+** be used to endorse or promote products derived from this software
+** without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY Google Inc. ``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 Google Inc. 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 "twsha.h"
+
+// Some machines lack byteswap.h and endian.h. These have to use the
+// slower code, even if they're little-endian.
+
+#if defined(HAVE_ENDIAN_H) && defined(HAVE_LITTLE_ENDIAN)
+
+#include <byteswap.h>
+#include <memory.h>
+
+// This version is about 28% faster than the generic version below,
+// but assumes little-endianness.
+
+static inline uint32_t ror27(uint32_t val) {
+ return (val >> 27) | (val << 5);
+}
+static inline uint32_t ror2(uint32_t val) {
+ return (val >> 2) | (val << 30);
+}
+static inline uint32_t ror31(uint32_t val) {
+ return (val >> 31) | (val << 1);
+}
+
+static void SHA1_Transform(SHA_CTX* ctx) {
+ uint32_t W[80];
+ register uint32_t A, B, C, D, E;
+ int t;
+
+ A = ctx->state[0];
+ B = ctx->state[1];
+ C = ctx->state[2];
+ D = ctx->state[3];
+ E = ctx->state[4];
+
+#define SHA_F1(A,B,C,D,E,t) \
+ E += ror27(A) + \
+ (W[t] = bswap_32(ctx->buf.w[t])) + \
+ (D^(B&(C^D))) + 0x5A827999; \
+ B = ror2(B);
+
+ for (t = 0; t < 15; t += 5) {
+ SHA_F1(A,B,C,D,E,t + 0);
+ SHA_F1(E,A,B,C,D,t + 1);
+ SHA_F1(D,E,A,B,C,t + 2);
+ SHA_F1(C,D,E,A,B,t + 3);
+ SHA_F1(B,C,D,E,A,t + 4);
+ }
+ SHA_F1(A,B,C,D,E,t + 0); // 16th one, t == 15
+
+#undef SHA_F1
+
+#define SHA_F1(A,B,C,D,E,t) \
+ E += ror27(A) + \
+ (W[t] = ror31(W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16])) + \
+ (D^(B&(C^D))) + 0x5A827999; \
+ B = ror2(B);
+
+ SHA_F1(E,A,B,C,D,t + 1);
+ SHA_F1(D,E,A,B,C,t + 2);
+ SHA_F1(C,D,E,A,B,t + 3);
+ SHA_F1(B,C,D,E,A,t + 4);
+
+#undef SHA_F1
+
+#define SHA_F2(A,B,C,D,E,t) \
+ E += ror27(A) + \
+ (W[t] = ror31(W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16])) + \
+ (B^C^D) + 0x6ED9EBA1; \
+ B = ror2(B);
+
+ for (t = 20; t < 40; t += 5) {
+ SHA_F2(A,B,C,D,E,t + 0);
+ SHA_F2(E,A,B,C,D,t + 1);
+ SHA_F2(D,E,A,B,C,t + 2);
+ SHA_F2(C,D,E,A,B,t + 3);
+ SHA_F2(B,C,D,E,A,t + 4);
+ }
+
+#undef SHA_F2
+
+#define SHA_F3(A,B,C,D,E,t) \
+ E += ror27(A) + \
+ (W[t] = ror31(W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16])) + \
+ ((B&C)|(D&(B|C))) + 0x8F1BBCDC; \
+ B = ror2(B);
+
+ for (; t < 60; t += 5) {
+ SHA_F3(A,B,C,D,E,t + 0);
+ SHA_F3(E,A,B,C,D,t + 1);
+ SHA_F3(D,E,A,B,C,t + 2);
+ SHA_F3(C,D,E,A,B,t + 3);
+ SHA_F3(B,C,D,E,A,t + 4);
+ }
+
+#undef SHA_F3
+
+#define SHA_F4(A,B,C,D,E,t) \
+ E += ror27(A) + \
+ (W[t] = ror31(W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16])) + \
+ (B^C^D) + 0xCA62C1D6; \
+ B = ror2(B);
+
+ for (; t < 80; t += 5) {
+ SHA_F4(A,B,C,D,E,t + 0);
+ SHA_F4(E,A,B,C,D,t + 1);
+ SHA_F4(D,E,A,B,C,t + 2);
+ SHA_F4(C,D,E,A,B,t + 3);
+ SHA_F4(B,C,D,E,A,t + 4);
+ }
+
+#undef SHA_F4
+
+ ctx->state[0] += A;
+ ctx->state[1] += B;
+ ctx->state[2] += C;
+ ctx->state[3] += D;
+ ctx->state[4] += E;
+}
+
+void SHA_update(SHA_CTX* ctx, const void* data, int len) {
+ int i = ctx->count % sizeof(ctx->buf);
+ const uint8_t* p = (const uint8_t*)data;
+
+ ctx->count += len;
+
+ while (len > sizeof(ctx->buf) - i) {
+ memcpy(&ctx->buf.b[i], p, sizeof(ctx->buf) - i);
+ len -= sizeof(ctx->buf) - i;
+ p += sizeof(ctx->buf) - i;
+ SHA1_Transform(ctx);
+ i = 0;
+ }
+
+ while (len--) {
+ ctx->buf.b[i++] = *p++;
+ if (i == sizeof(ctx->buf)) {
+ SHA1_Transform(ctx);
+ i = 0;
+ }
+ }
+}
+
+
+const uint8_t* SHA_final(SHA_CTX* ctx) {
+ uint64_t cnt = ctx->count * 8;
+ int i;
+
+ SHA_update(ctx, (uint8_t*)"\x80", 1);
+ while ((ctx->count % sizeof(ctx->buf)) != (sizeof(ctx->buf) - 8)) {
+ SHA_update(ctx, (uint8_t*)"\0", 1);
+ }
+ for (i = 0; i < 8; ++i) {
+ uint8_t tmp = cnt >> ((7 - i) * 8);
+ SHA_update(ctx, &tmp, 1);
+ }
+
+ for (i = 0; i < 5; i++) {
+ ctx->buf.w[i] = bswap_32(ctx->state[i]);
+ }
+
+ return ctx->buf.b;
+}
+
+#else // #if defined(HAVE_ENDIAN_H) && defined(HAVE_LITTLE_ENDIAN)
+
+#define rol(bits, value) (((value) << (bits)) | ((value) >> (32 - (bits))))
+
+static void SHA1_transform(SHA_CTX *ctx) {
+ uint32_t W[80];
+ uint32_t A, B, C, D, E;
+ uint8_t *p = ctx->buf;
+ int t;
+
+ for(t = 0; t < 16; ++t) {
+ uint32_t tmp = *p++ << 24;
+ tmp |= *p++ << 16;
+ tmp |= *p++ << 8;
+ tmp |= *p++;
+ W[t] = tmp;
+ }
+
+ for(; t < 80; t++) {
+ W[t] = rol(1,W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16]);
+ }
+
+ A = ctx->state[0];
+ B = ctx->state[1];
+ C = ctx->state[2];
+ D = ctx->state[3];
+ E = ctx->state[4];
+
+ for(t = 0; t < 80; t++) {
+ uint32_t tmp = rol(5,A) + E + W[t];
+
+ if (t < 20)
+ tmp += (D^(B&(C^D))) + 0x5A827999;
+ else if ( t < 40)
+ tmp += (B^C^D) + 0x6ED9EBA1;
+ else if ( t < 60)
+ tmp += ((B&C)|(D&(B|C))) + 0x8F1BBCDC;
+ else
+ tmp += (B^C^D) + 0xCA62C1D6;
+
+ E = D;
+ D = C;
+ C = rol(30,B);
+ B = A;
+ A = tmp;
+ }
+
+ ctx->state[0] += A;
+ ctx->state[1] += B;
+ ctx->state[2] += C;
+ ctx->state[3] += D;
+ ctx->state[4] += E;
+}
+
+void SHA_update(SHA_CTX *ctx, const void *data, int len) {
+ int i = ctx->count % sizeof(ctx->buf);
+ const uint8_t* p = (const uint8_t*)data;
+
+ ctx->count += len;
+
+ while (len--) {
+ ctx->buf[i++] = *p++;
+ if (i == sizeof(ctx->buf)) {
+ SHA1_transform(ctx);
+ i = 0;
+ }
+ }
+}
+const uint8_t *SHA_final(SHA_CTX *ctx) {
+ uint8_t *p = ctx->buf;
+ uint64_t cnt = ctx->count * 8;
+ int i;
+
+ SHA_update(ctx, (uint8_t*)"\x80", 1);
+ while ((ctx->count % sizeof(ctx->buf)) != (sizeof(ctx->buf) - 8)) {
+ SHA_update(ctx, (uint8_t*)"\0", 1);
+ }
+ for (i = 0; i < 8; ++i) {
+ uint8_t tmp = cnt >> ((7 - i) * 8);
+ SHA_update(ctx, &tmp, 1);
+ }
+
+ for (i = 0; i < 5; i++) {
+ uint32_t tmp = ctx->state[i];
+ *p++ = tmp >> 24;
+ *p++ = tmp >> 16;
+ *p++ = tmp >> 8;
+ *p++ = tmp >> 0;
+ }
+
+ return ctx->buf;
+}
+
+#endif // endianness
+
+void SHA_init(SHA_CTX* ctx) {
+ ctx->state[0] = 0x67452301;
+ ctx->state[1] = 0xEFCDAB89;
+ ctx->state[2] = 0x98BADCFE;
+ ctx->state[3] = 0x10325476;
+ ctx->state[4] = 0xC3D2E1F0;
+ ctx->count = 0;
+}
+
+/* Convenience function */
+const uint8_t* SHA(const void *data, int len, uint8_t *digest) {
+ const uint8_t *p;
+ int i;
+ SHA_CTX ctx;
+ SHA_init(&ctx);
+ SHA_update(&ctx, data, len);
+ p = SHA_final(&ctx);
+ for (i = 0; i < SHA_DIGEST_SIZE; ++i) {
+ digest[i] = *p++;
+ }
+ return digest;
+}
diff --git a/twmincrypt/twsha.h b/twmincrypt/twsha.h
new file mode 100644
index 0000000..af63e87
--- /dev/null
+++ b/twmincrypt/twsha.h
@@ -0,0 +1,63 @@
+/* sha.h
+**
+** Copyright 2008, The Android Open Source Project
+**
+** 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.
+** * Neither the name of Google Inc. nor the names of its contributors may
+** be used to endorse or promote products derived from this software
+** without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY Google Inc. ``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 Google Inc. 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 _EMBEDDED_SHA_H_
+#define _EMBEDDED_SHA_H_
+
+#include <inttypes.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct SHA_CTX {
+ uint64_t count;
+ uint32_t state[5];
+#if defined(HAVE_ENDIAN_H) && defined(HAVE_LITTLE_ENDIAN)
+ union {
+ uint8_t b[64];
+ uint32_t w[16];
+ } buf;
+#else
+ uint8_t buf[64];
+#endif
+} SHA_CTX;
+
+void SHA_init(SHA_CTX* ctx);
+void SHA_update(SHA_CTX* ctx, const void* data, int len);
+const uint8_t* SHA_final(SHA_CTX* ctx);
+
+/* Convenience method. Returns digest parameter value. */
+const uint8_t* SHA(const void* data, int len, uint8_t* digest);
+
+#define SHA_DIGEST_SIZE 20
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif