--- /dev/null
+/*
+ * Verify SHA2 against FIPS test vectors.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <strings.h>
+#include <CommonCrypto/CommonDigest.h>
+
+static void usage(char **argv)
+{
+ printf("Usage: %s [q(uiet)]\n", argv[0]);
+ exit(1);
+}
+
+/*
+ * These test vectors came from FIPS Processing Standards Publication 180-2,
+ * 2002 August 1.
+ *
+ * http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
+ */
+
+/* SHA256 vectors */
+static const char *v1_256_text = "abc";
+static int v1_256_textLen=3;
+static unsigned const char v1_256_digest[] = {
+ 0xba, 0x78, 0x16, 0xbf, 0x8f, 0x01, 0xcf, 0xea,
+ 0x41, 0x41, 0x40, 0xde, 0x5d, 0xae, 0x22, 0x23,
+ 0xb0, 0x03, 0x61, 0xa3, 0x96, 0x17, 0x7a, 0x9c,
+ 0xb4, 0x10, 0xff, 0x61, 0xf2, 0x00, 0x15, 0xad
+};
+
+static const char *v2_256_text = "abcdbcdecdefdefgefghfghighijhi"
+ "jkijkljklmklmnlmnomnopnopq";
+#define v2_256_textLen strlen(v2_256_text)
+static unsigned const char v2_256_digest[] = {
+ 0x24, 0x8d, 0x6a, 0x61, 0xd2, 0x06, 0x38, 0xb8,
+ 0xe5, 0xc0, 0x26, 0x93, 0x0c, 0x3e, 0x60, 0x39,
+ 0xa3, 0x3c, 0xe4, 0x59, 0x64, 0xff, 0x21, 0x67,
+ 0xf6, 0xec, 0xed, 0xd4, 0x19, 0xdb, 0x06, 0xc1
+};
+
+/* Vector 3: text = one million 'a' characters */
+static unsigned const char v3_256_digest[] = {
+ 0xcd, 0xc7, 0x6e, 0x5c, 0x99, 0x14, 0xfb, 0x92,
+ 0x81, 0xa1, 0xc7, 0xe2, 0x84, 0xd7, 0x3e, 0x67,
+ 0xf1, 0x80, 0x9a, 0x48, 0xa4, 0x97, 0x20, 0x0e,
+ 0x04, 0x6d, 0x39, 0xcc, 0xc7, 0x11, 0x2c, 0xd0
+};
+
+/* SHA384 vectors */
+static const char *v1_384_text = "abc";
+static int v1_384_textLen=3;
+static unsigned const char v1_384_digest[] = {
+ 0xcb, 0x00, 0x75, 0x3f, 0x45, 0xa3, 0x5e, 0x8b,
+ 0xb5, 0xa0, 0x3d, 0x69, 0x9a, 0xc6, 0x50, 0x07,
+ 0x27, 0x2c, 0x32, 0xab, 0x0e, 0xde, 0xd1, 0x63,
+ 0x1a, 0x8b, 0x60, 0x5a, 0x43, 0xff, 0x5b, 0xed,
+ 0x80, 0x86, 0x07, 0x2b, 0xa1, 0xe7, 0xcc, 0x23,
+ 0x58, 0xba, 0xec, 0xa1, 0x34, 0xc8, 0x25, 0xa7
+};
+
+static const char *v2_384_text = "abcdefghbcdefghicdefghijdefghij"
+ "kefghijklfghijklmghijklmn"
+ "hijklmnoijklmnopjklmnopqklmnopqr"
+ "lmnopqrsmnopqrstnopqrstu";
+#define v2_384_textLen strlen(v2_384_text)
+static unsigned const char v2_384_digest[] = {
+ 0x09, 0x33, 0x0c, 0x33, 0xf7, 0x11, 0x47, 0xe8,
+ 0x3d, 0x19, 0x2f, 0xc7, 0x82, 0xcd, 0x1b, 0x47,
+ 0x53, 0x11, 0x1b, 0x17, 0x3b, 0x3b, 0x05, 0xd2,
+ 0x2f, 0xa0, 0x80, 0x86, 0xe3, 0xb0, 0xf7, 0x12,
+ 0xfc, 0xc7, 0xc7, 0x1a, 0x55, 0x7e, 0x2d, 0xb9,
+ 0x66, 0xc3, 0xe9, 0xfa, 0x91, 0x74, 0x60, 0x39
+};
+
+/* Vector 3: text = one million 'a' characters */
+static unsigned const char v3_384_digest[] = {
+ 0x9d, 0x0e, 0x18, 0x09, 0x71, 0x64, 0x74, 0xcb,
+ 0x08, 0x6e, 0x83, 0x4e, 0x31, 0x0a, 0x4a, 0x1c,
+ 0xed, 0x14, 0x9e, 0x9c, 0x00, 0xf2, 0x48, 0x52,
+ 0x79, 0x72, 0xce, 0xc5, 0x70, 0x4c, 0x2a, 0x5b,
+ 0x07, 0xb8, 0xb3, 0xdc, 0x38, 0xec, 0xc4, 0xeb,
+ 0xae, 0x97, 0xdd, 0xd8, 0x7f, 0x3d, 0x89, 0x85
+};
+
+/* SHA512 vectors */
+static const char *v1_512_text = "abc";
+static int v1_512_textLen=3;
+static unsigned const char v1_512_digest[] = {
+ 0xdd, 0xaf, 0x35, 0xa1, 0x93, 0x61, 0x7a, 0xba,
+ 0xcc, 0x41, 0x73, 0x49, 0xae, 0x20, 0x41, 0x31,
+ 0x12, 0xe6, 0xfa, 0x4e, 0x89, 0xa9, 0x7e, 0xa2,
+ 0x0a, 0x9e, 0xee, 0xe6, 0x4b, 0x55, 0xd3, 0x9a,
+ 0x21, 0x92, 0x99, 0x2a, 0x27, 0x4f, 0xc1, 0xa8,
+ 0x36, 0xba, 0x3c, 0x23, 0xa3, 0xfe, 0xeb, 0xbd,
+ 0x45, 0x4d, 0x44, 0x23, 0x64, 0x3c, 0xe8, 0x0e,
+ 0x2a, 0x9a, 0xc9, 0x4f, 0xa5, 0x4c, 0xa4, 0x9f
+};
+
+static const char *v2_512_text = "abcdefghbcdefghicdefghijdefgh"
+ "ijkefghijklfghijklmghijklmn"
+ "hijklmnoijklmnopjklmnopqklmn"
+ "opqrlmnopqrsmnopqrstnopqrstu";
+#define v2_512_textLen strlen(v2_512_text)
+static unsigned const char v2_512_digest[] = {
+ 0x8e, 0x95, 0x9b, 0x75, 0xda, 0xe3, 0x13, 0xda,
+ 0x8c, 0xf4, 0xf7, 0x28, 0x14, 0xfc, 0x14, 0x3f,
+ 0x8f, 0x77, 0x79, 0xc6, 0xeb, 0x9f, 0x7f, 0xa1,
+ 0x72, 0x99, 0xae, 0xad, 0xb6, 0x88, 0x90, 0x18,
+ 0x50, 0x1d, 0x28, 0x9e, 0x49, 0x00, 0xf7, 0xe4,
+ 0x33, 0x1b, 0x99, 0xde, 0xc4, 0xb5, 0x43, 0x3a,
+ 0xc7, 0xd3, 0x29, 0xee, 0xb6, 0xdd, 0x26, 0x54,
+ 0x5e, 0x96, 0xe5, 0x5b, 0x87, 0x4b, 0xe9, 0x09
+};
+
+/* Vector 3: one million 'a' characters */
+static unsigned const char v3_512_digest[] = {
+ 0xe7, 0x18, 0x48, 0x3d, 0x0c, 0xe7, 0x69, 0x64,
+ 0x4e, 0x2e, 0x42, 0xc7, 0xbc, 0x15, 0xb4, 0x63,
+ 0x8e, 0x1f, 0x98, 0xb1, 0x3b, 0x20, 0x44, 0x28,
+ 0x56, 0x32, 0xa8, 0x03, 0xaf, 0xa9, 0x73, 0xeb,
+ 0xde, 0x0f, 0xf2, 0x44, 0x87, 0x7e, 0xa6, 0x0a,
+ 0x4c, 0xb0, 0x43, 0x2c, 0xe5, 0x77, 0xc3, 0x1b,
+ 0xeb, 0x00, 0x9c, 0x5c, 0x2c, 0x49, 0xaa, 0x2e,
+ 0x4e, 0xad, 0xb2, 0x17, 0xad, 0x8c, 0xc0, 0x9b
+};
+
+/*
+ * SHA224 vectors, not part of the FIPS standard; these were obtained from RFC 3874.
+ */
+static const char *v1_224_text = "abc";
+static int v1_224_textLen=3;
+static unsigned const char v1_224_digest[] = {
+ 0x23, 0x09, 0x7d, 0x22, 0x34, 0x05, 0xd8, 0x22,
+ 0x86, 0x42, 0xa4, 0x77, 0xbd, 0xa2, 0x55, 0xb3,
+ 0x2a, 0xad, 0xbc, 0xe4, 0xbd, 0xa0, 0xb3, 0xf7,
+ 0xe3, 0x6c, 0x9d, 0xa7
+};
+
+static const char *v2_224_text = "abcdbcdecdefdefgefghfghighi"
+ "jhijkijkljklmklmnlmnomnopnopq";
+static int v2_224_textLen=56;
+static unsigned const char v2_224_digest[] = {
+ 0x75, 0x38, 0x8b, 0x16, 0x51, 0x27, 0x76, 0xcc,
+ 0x5d, 0xba, 0x5d, 0xa1, 0xfd, 0x89, 0x01, 0x50,
+ 0xb0, 0xc6, 0x45, 0x5c, 0xb4, 0xf5, 0x8b, 0x19,
+ 0x52, 0x52, 0x25, 0x25
+};
+
+/* Vector 3: one million 'a' characters */
+static unsigned const char v3_224_digest[] = {
+ 0x20, 0x79, 0x46, 0x55, 0x98, 0x0c, 0x91, 0xd8,
+ 0xbb, 0xb4, 0xc1, 0xea, 0x97, 0x61, 0x8a, 0x4b,
+ 0xf0, 0x3f, 0x42, 0x58, 0x19, 0x48, 0xb2, 0xee,
+ 0x4e, 0xe7, 0xad, 0x67
+};
+
+static void dumpBuffer(
+ const char *bufName, // optional
+ const unsigned char *buf,
+ unsigned len)
+{
+ unsigned i;
+
+ if(bufName) {
+ printf("%s\n", bufName);
+ }
+ printf(" ");
+ for(i=0; i<len; i++) {
+ printf("%02X", buf[i]);
+ if((i % 4) == 3) {
+ printf(" ");
+ }
+ if((i % 32) == 31) {
+ printf("\n ");
+ }
+ }
+ printf("\n");
+}
+
+static int doTest(
+ const char *title,
+ const unsigned char *digest, /* 2 * digestLen bytes, second half should be zero */
+ const unsigned char *expect,
+ unsigned digestLen)
+{
+ if(memcmp(digest, expect, digestLen)) {
+ printf("**Error on %s\n", title);
+ dumpBuffer("Expected", expect, digestLen);
+ dumpBuffer("Obtained", digest, digestLen);
+ return 1;
+ }
+ const unsigned char *cp = digest + digestLen;
+ for(unsigned dex=0; dex<digestLen; dex++) {
+ if(*cp++ != 0) {
+ printf("***%s: Buffer overwrite at byte %u\n", title, dex);
+ dumpBuffer("This should be all zeroes:", digest+digestLen, digestLen);
+ return 1;
+ }
+ }
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ bool quiet = false;
+
+ for(int arg=1; arg<argc; arg++) {
+ switch(argv[arg][0]) {
+ case 'q':
+ quiet = true;
+ break;
+ default:
+ usage(argv);
+ }
+ }
+
+ if(!quiet) {
+ printf("...testing SHA224\n");
+ }
+
+ CC_SHA256_CTX ctx224;
+ /* double the digest and check for mods at end */
+ unsigned char dig224[CC_SHA224_DIGEST_LENGTH * 2];
+
+ memset(dig224, 0, CC_SHA224_DIGEST_LENGTH * 2);
+ CC_SHA224_Init(&ctx224);
+ CC_SHA224_Update(&ctx224, v1_224_text, v1_224_textLen);
+ CC_SHA224_Final(dig224, &ctx224);
+ if(doTest("SHA224 Vector 1", dig224, v1_224_digest, CC_SHA224_DIGEST_LENGTH)) {
+ exit(1);
+ }
+
+ memset(dig224, 0, CC_SHA224_DIGEST_LENGTH);
+ CC_SHA224_Init(&ctx224);
+ CC_SHA224_Update(&ctx224, v2_224_text, v2_224_textLen);
+ CC_SHA224_Final(dig224, &ctx224);
+ if(doTest("SHA224 Vector 2", dig224, v2_224_digest, CC_SHA224_DIGEST_LENGTH)) {
+ exit(1);
+ }
+
+ memset(dig224, 0, CC_SHA224_DIGEST_LENGTH);
+ CC_SHA224_Init(&ctx224);
+ /* one million 'a' chars; do 100,000 loops of ten of 'em */
+ for(unsigned dex=0; dex<100000; dex++) {
+ CC_SHA224_Update(&ctx224, "aaaaaaaaaa", 10);
+ }
+ CC_SHA224_Final(dig224, &ctx224);
+ if(doTest("SHA224 Vector 3", dig224, v3_224_digest, CC_SHA224_DIGEST_LENGTH)) {
+ exit(1);
+ }
+
+ if(!quiet) {
+ printf("...testing SHA256\n");
+ }
+ CC_SHA256_CTX ctx256;
+
+ /* double the digest and check for mods at end */
+ unsigned char dig256[CC_SHA256_DIGEST_LENGTH * 2];
+
+ memset(dig256, 0, CC_SHA256_DIGEST_LENGTH * 2);
+ CC_SHA256_Init(&ctx256);
+ CC_SHA256_Update(&ctx256, v1_256_text, v1_256_textLen);
+ CC_SHA256_Final(dig256, &ctx256);
+ if(doTest("SHA256 Vector 1", dig256, v1_256_digest, CC_SHA256_DIGEST_LENGTH)) {
+ exit(1);
+ }
+
+ memset(dig256, 0, CC_SHA256_DIGEST_LENGTH);
+ CC_SHA256_Init(&ctx256);
+ CC_SHA256_Update(&ctx256, v2_256_text, v2_256_textLen);
+ CC_SHA256_Final(dig256, &ctx256);
+ if(doTest("SHA256 Vector 2", dig256, v2_256_digest, CC_SHA256_DIGEST_LENGTH)) {
+ exit(1);
+ }
+
+ memset(dig256, 0, CC_SHA256_DIGEST_LENGTH);
+ CC_SHA256_Init(&ctx256);
+ /* one million 'a' chars; do 100,000 loops of ten of 'em */
+ for(unsigned dex=0; dex<100000; dex++) {
+ CC_SHA256_Update(&ctx256, "aaaaaaaaaa", 10);
+ }
+ CC_SHA256_Final(dig256, &ctx256);
+ if(doTest("SHA256 Vector 3", dig256, v3_256_digest, CC_SHA256_DIGEST_LENGTH)) {
+ exit(1);
+ }
+
+ if(!quiet) {
+ printf("...testing SHA384\n");
+ }
+
+ CC_SHA512_CTX ctx384;
+ unsigned char dig384[CC_SHA384_DIGEST_LENGTH * 2];
+
+ memset(dig384, 0, CC_SHA384_DIGEST_LENGTH * 2);
+ CC_SHA384_Init(&ctx384);
+ CC_SHA384_Update(&ctx384, v1_384_text, v1_384_textLen);
+ CC_SHA384_Final(dig384, &ctx384);
+ if(doTest("SHA384 Vector 1", dig384, v1_384_digest, CC_SHA384_DIGEST_LENGTH)) {
+ exit(1);
+ }
+
+ memset(dig384, 0, CC_SHA384_DIGEST_LENGTH);
+ CC_SHA384_Init(&ctx384);
+ CC_SHA384_Update(&ctx384, v2_384_text, v2_384_textLen);
+ CC_SHA384_Final(dig384, &ctx384);
+ if(doTest("SHA384 Vector 2", dig384, v2_384_digest, CC_SHA384_DIGEST_LENGTH)) {
+ exit(1);
+ }
+
+ memset(dig384, 0, CC_SHA384_DIGEST_LENGTH);
+ CC_SHA384_Init(&ctx384);
+ /* one million 'a' chars; do 100,000 loops of ten of 'em */
+ for(unsigned dex=0; dex<100000; dex++) {
+ CC_SHA384_Update(&ctx384, "aaaaaaaaaa", 10);
+ }
+ CC_SHA384_Final(dig384, &ctx384);
+ if(doTest("SHA384 Vector 3", dig384, v3_384_digest, CC_SHA384_DIGEST_LENGTH)) {
+ exit(1);
+ }
+
+ if(!quiet) {
+ printf("...testing SHA512\n");
+ }
+
+ CC_SHA512_CTX ctx512;
+ unsigned char dig512[CC_SHA512_DIGEST_LENGTH * 2];
+
+ memset(dig512, 0, CC_SHA512_DIGEST_LENGTH * 2);
+ CC_SHA512_Init(&ctx512);
+ CC_SHA512_Update(&ctx512, v1_512_text, v1_512_textLen);
+ CC_SHA512_Final(dig512, &ctx512);
+ if(doTest("SHA512 Vector 1", dig512, v1_512_digest, CC_SHA512_DIGEST_LENGTH)) {
+ exit(1);
+ }
+
+ memset(dig512, 0, CC_SHA512_DIGEST_LENGTH);
+ CC_SHA512_Init(&ctx512);
+ CC_SHA512_Update(&ctx512, v2_512_text, v2_512_textLen);
+ CC_SHA512_Final(dig512, &ctx512);
+ if(doTest("SHA512 Vector 2", dig512, v2_512_digest, CC_SHA512_DIGEST_LENGTH)) {
+ exit(1);
+ }
+
+ memset(dig512, 0, CC_SHA512_DIGEST_LENGTH);
+ CC_SHA512_Init(&ctx512);
+ /* one million 'a' chars; do 100,000 loops of ten of 'em */
+ for(unsigned dex=0; dex<100000; dex++) {
+ CC_SHA512_Update(&ctx512, "aaaaaaaaaa", 10);
+ }
+ CC_SHA512_Final(dig512, &ctx512);
+ if(doTest("SHA512 Vector 3", dig512, v3_512_digest, CC_SHA512_DIGEST_LENGTH)) {
+ exit(1);
+ }
+
+ if(!quiet) {
+ printf("...SHA2 test vectors passed\n");
+ }
+ return 0;
+}