support version 2 (2048-bit e=65537) keys in recovery
Change-Id: I9849c69777d513bb12926c8c622d1c12d2da568a
diff --git a/install.cpp b/install.cpp
index 4d73aa9..819650e 100644
--- a/install.cpp
+++ b/install.cpp
@@ -180,6 +180,12 @@
//
// "{64,0xc926ad21,{1795090719,...,-695002876},{-857949815,...,1175080310}}"
//
+// For key versions newer than the original 2048-bit e=3 keys
+// supported by Android, the string is preceded by a version
+// identifier, eg:
+//
+// "v2 {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.)
@@ -206,7 +212,23 @@
++*numKeys;
out = (RSAPublicKey*)realloc(out, *numKeys * sizeof(RSAPublicKey));
RSAPublicKey* key = out + (*numKeys - 1);
- if (fscanf(f, " { %i , 0x%x , { %u",
+
+ char start_char;
+ if (fscanf(f, " %c", &start_char) != 1) goto exit;
+ if (start_char == '{') {
+ // a version 1 key has no version specifier.
+ key->exponent = 3;
+ } else if (start_char == 'v') {
+ int version;
+ if (fscanf(f, "%d {", &version) != 1) goto exit;
+ if (version == 2) {
+ key->exponent = 65537;
+ } else {
+ goto exit;
+ }
+ }
+
+ if (fscanf(f, " %i , 0x%x , { %u",
&(key->len), &(key->n0inv), &(key->n[0])) != 3) {
goto exit;
}
@@ -237,6 +259,8 @@
LOGE("unexpected character between keys\n");
goto exit;
}
+
+ LOGI("read key e=%d\n", key->exponent);
}
}
diff --git a/testdata/otasigned_f4.zip b/testdata/otasigned_f4.zip
new file mode 100644
index 0000000..dd1e4dd
--- /dev/null
+++ b/testdata/otasigned_f4.zip
Binary files differ
diff --git a/testdata/test_f4.pk8 b/testdata/test_f4.pk8
new file mode 100644
index 0000000..3052613
--- /dev/null
+++ b/testdata/test_f4.pk8
Binary files differ
diff --git a/testdata/test_f4.x509.pem b/testdata/test_f4.x509.pem
new file mode 100644
index 0000000..814abcf
--- /dev/null
+++ b/testdata/test_f4.x509.pem
@@ -0,0 +1,25 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/verifier_test.cpp b/verifier_test.cpp
index fe5519d..01d0926 100644
--- a/verifier_test.cpp
+++ b/verifier_test.cpp
@@ -56,7 +56,45 @@
9135381, 1625809335, -1490225159, -1342673351,
1117190829, -57654514, 1825108855, -1281819325,
1111251351, -1726129724, 1684324211, -1773988491,
- 367251975, 810756730, -1941182952, 1175080310 }
+ 367251975, 810756730, -1941182952, 1175080310 },
+ 3
+ };
+
+RSAPublicKey test_f4_key =
+ { 64, 0xc9bd1f21,
+ { 293133087u, 3210546773u, 865313125u, 250921607u,
+ 3158780490u, 943703457u, 1242806226u, 2986289859u,
+ 2942743769u, 2457906415u, 2719374299u, 1783459420u,
+ 149579627u, 3081531591u, 3440738617u, 2788543742u,
+ 2758457512u, 1146764939u, 3699497403u, 2446203424u,
+ 1744968926u, 1159130537u, 2370028300u, 3978231572u,
+ 3392699980u, 1487782451u, 1180150567u, 2841334302u,
+ 3753960204u, 961373345u, 3333628321u, 748825784u,
+ 2978557276u, 1566596926u, 1613056060u, 2600292737u,
+ 1847226629u, 50398611u, 1890374404u, 2878700735u,
+ 2286201787u, 1401186359u, 619285059u, 731930817u,
+ 2340993166u, 1156490245u, 2992241729u, 151498140u,
+ 318782170u, 3480838990u, 2100383433u, 4223552555u,
+ 3628927011u, 4247846280u, 1759029513u, 4215632601u,
+ 2719154626u, 3490334597u, 1751299340u, 3487864726u,
+ 3668753795u, 4217506054u, 3748782284u, 3150295088u },
+ { 1772626313u, 445326068u, 3477676155u, 1758201194u,
+ 2986784722u, 491035581u, 3922936562u, 702212696u,
+ 2979856666u, 3324974564u, 2488428922u, 3056318590u,
+ 1626954946u, 664714029u, 398585816u, 3964097931u,
+ 3356701905u, 2298377729u, 2040082097u, 3025491477u,
+ 539143308u, 3348777868u, 2995302452u, 3602465520u,
+ 212480763u, 2691021393u, 1307177300u, 704008044u,
+ 2031136606u, 1054106474u, 3838318865u, 2441343869u,
+ 1477566916u, 700949900u, 2534790355u, 3353533667u,
+ 336163563u, 4106790558u, 2701448228u, 1571536379u,
+ 1103842411u, 3623110423u, 1635278839u, 1577828979u,
+ 910322800u, 715583630u, 138128831u, 1017877531u,
+ 2289162787u, 447994798u, 1897243165u, 4121561445u,
+ 4150719842u, 2131821093u, 2262395396u, 3305771534u,
+ 980753571u, 3256525190u, 3128121808u, 1072869975u,
+ 3507939515u, 4229109952u, 118381341u, 2209831334u },
+ 65537
};
RecoveryUI* ui = NULL;
@@ -91,14 +129,21 @@
};
int main(int argc, char **argv) {
- if (argc != 2) {
- fprintf(stderr, "Usage: %s <package>\n", argv[0]);
+ if (argc != 2 && argc != 3) {
+ fprintf(stderr, "Usage: %s [-f4] <package>\n", argv[0]);
return 2;
}
+ RSAPublicKey* key = &test_key;
+ ++argv;
+ if (strcmp(argv[0], "-f4") == 0) {
+ ++argv;
+ key = &test_f4_key;
+ }
+
ui = new FakeUI();
- int result = verify_file(argv[1], &test_key, 1);
+ int result = verify_file(*argv, key, 1);
if (result == VERIFY_SUCCESS) {
printf("SUCCESS\n");
return 0;
diff --git a/verifier_test.sh b/verifier_test.sh
index a1de5c5..378b0e5 100755
--- a/verifier_test.sh
+++ b/verifier_test.sh
@@ -73,9 +73,24 @@
run_command $WORK_DIR/verifier_test $WORK_DIR/package.zip && fail
}
+expect_succeed_f4() {
+ testname "$1 (should succeed)"
+ $ADB push $DATA_DIR/$1 $WORK_DIR/package.zip
+ run_command $WORK_DIR/verifier_test -f4 $WORK_DIR/package.zip || fail
+}
+
+expect_fail_f4() {
+ testname "$1 (should fail)"
+ $ADB push $DATA_DIR/$1 $WORK_DIR/package.zip
+ run_command $WORK_DIR/verifier_test -f4 $WORK_DIR/package.zip && fail
+}
+
expect_fail unsigned.zip
expect_fail jarsigned.zip
expect_succeed otasigned.zip
+expect_fail_f4 otasigned.zip
+expect_succeed_f4 otasigned_f4.zip
+expect_fail otasigned_f4.zip
expect_fail random.zip
expect_fail fake-eocd.zip
expect_fail alter-metadata.zip