-/* $OpenBSD: sha_test.c,v 1.1 2022/09/01 14:02:41 tb Exp $ */
+/* $OpenBSD: sha_test.c,v 1.2 2022/09/02 11:13:34 tb Exp $ */
/*
* Copyright (c) 2022 Joshua Sing <joshua@hypera.dev>
*
},
{
.algorithm = NID_sha224,
- .in = "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmno"
+ .in =
+ "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmno"
"mnopnopq",
.in_len = 56,
.out = {
},
};
+struct sha_repetition_test
+{
+ const int algorithm;
+ const uint8_t in;
+ const size_t in_repetitions;
+ const uint8_t out[EVP_MAX_MD_SIZE];
+};
+
+struct sha_repetition_test sha_repetition_tests[] = {
+ /* SHA-1 */
+ {
+ .algorithm = NID_sha1,
+ .in = 'a',
+ .in_repetitions = 1000000,
+ .out = {
+ 0x34, 0xaa, 0x97, 0x3c, 0xd4, 0xc4, 0xda, 0xa4,
+ 0xf6, 0x1e, 0xeb, 0x2b, 0xdb, 0xad, 0x27, 0x31,
+ 0x65, 0x34, 0x01, 0x6f,
+ }
+ },
+
+ /* SHA-224 */
+ {
+ .algorithm = NID_sha224,
+ .in = 'a',
+ .in_repetitions = 1000000,
+ .out = {
+ 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,
+ }
+ },
+
+ /* SHA-256 */
+ {
+ .algorithm = NID_sha256,
+ .in = 'a',
+ .in_repetitions = 1000000,
+ .out = {
+ 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,
+ }
+ },
+
+ /* SHA-384 */
+ {
+ .algorithm = NID_sha384,
+ .in = 'a',
+ .in_repetitions = 1000000,
+ .out = {
+ 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,
+ }
+ },
+
+ /* SHA-512 */
+ {
+ .algorithm = NID_sha512,
+ .in = 'a',
+ .in_repetitions = 1000000,
+ .out = {
+ 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,
+ }
+ },
+};
+
#define N_SHA_TESTS (sizeof(sha_tests) / sizeof(sha_tests[0]))
+#define N_SHA_REPETITION_TESTS (sizeof(sha_repetition_tests) / sizeof(sha_repetition_tests[0]))
+
+typedef unsigned char *(*sha_hash_func)(const unsigned char *, size_t,
+ unsigned char *);
+
+static int
+sha_hash_from_algorithm(int algorithm, const char **out_label,
+ sha_hash_func *out_func, const EVP_MD **out_md, size_t *out_len)
+{
+ const char *label;
+ sha_hash_func sha_func;
+ const EVP_MD *md;
+ size_t len;
+
+ switch (algorithm) {
+ case NID_sha1:
+ label = SN_sha1;
+ sha_func = SHA1;
+ md = EVP_sha1();
+ len = SHA_DIGEST_LENGTH;
+ break;
+ case NID_sha224:
+ label = SN_sha224;
+ sha_func = SHA224;
+ md = EVP_sha224();
+ len = SHA224_DIGEST_LENGTH;
+ break;
+ case NID_sha256:
+ label = SN_sha256;
+ sha_func = SHA256;
+ md = EVP_sha256();
+ len = SHA256_DIGEST_LENGTH;
+ break;
+ case NID_sha384:
+ label = SN_sha384;
+ sha_func = SHA384;
+ md = EVP_sha384();
+ len = SHA384_DIGEST_LENGTH;
+ break;
+ case NID_sha512:
+ label = SN_sha512;
+ sha_func = SHA512;
+ md = EVP_sha512();
+ len = SHA512_DIGEST_LENGTH;
+ break;
+ default:
+ fprintf(stderr, "FAIL: unknown algorithm (%d)\n",
+ algorithm);
+ return 0;
+ }
+
+ if (out_label != NULL)
+ *out_label = label;
+ if (out_func != NULL)
+ *out_func = sha_func;
+ if (out_md != NULL)
+ *out_md = md;
+ if (out_len != NULL)
+ *out_len = len;
+
+ return 1;
+}
static int
sha_test(void)
{
- unsigned char *(*sha_func)(const unsigned char *, size_t, unsigned char *);
+ sha_hash_func sha_func;
struct sha_test *st;
EVP_MD_CTX *hash = NULL;
const EVP_MD *md;
for (i = 0; i < N_SHA_TESTS; i++) {
st = &sha_tests[i];
- switch (st->algorithm) {
- case NID_sha1:
- sha_func = SHA1;
- md = EVP_sha1();
- out_len = SHA_DIGEST_LENGTH;
- label = SN_sha1;
- break;
- case NID_sha224:
- sha_func = SHA224;
- md = EVP_sha224();
- out_len = SHA224_DIGEST_LENGTH;
- label = SN_sha224;
- break;
- case NID_sha256:
- sha_func = SHA256;
- md = EVP_sha256();
- out_len = SHA256_DIGEST_LENGTH;
- label = SN_sha256;
- break;
- case NID_sha384:
- sha_func = SHA384;
- md = EVP_sha384();
- out_len = SHA384_DIGEST_LENGTH;
- label = SN_sha384;
- break;
- case NID_sha512:
- sha_func = SHA512;
- md = EVP_sha512();
- out_len = SHA512_DIGEST_LENGTH;
- label = SN_sha512;
- break;
- default:
- fprintf(stderr, "FAIL: unknown algorithm (%d)\n",
- st->algorithm);
+ if (!sha_hash_from_algorithm(st->algorithm, &label, &sha_func,
+ &md, &out_len))
goto failed;
- }
/* Digest */
memset(out, 0, sizeof(out));
/* EVP single-shot digest */
memset(out, 0, sizeof(out));
if (!EVP_Digest(st->in, st->in_len, out, NULL, md, NULL)) {
- fprintf(stderr, "FAIL (%s): EVP_Digest failed\n", label);
+ fprintf(stderr, "FAIL (%s): EVP_Digest failed\n",
+ label);
goto failed;
}
return failed;
}
+static int
+sha_repetition_test(void)
+{
+ struct sha_repetition_test *st;
+ EVP_MD_CTX *hash = NULL;
+ const EVP_MD *md;
+ uint8_t buf[1024];
+ uint8_t out[EVP_MAX_MD_SIZE];
+ size_t out_len, part_len;
+ size_t i, j;
+ const char *label;
+ int failed = 1;
+
+ if ((hash = EVP_MD_CTX_new()) == NULL) {
+ fprintf(stderr, "FAIL: EVP_MD_CTX_new() failed\n");
+ goto failed;
+ }
+
+ for (i = 0; i < N_SHA_REPETITION_TESTS; i++) {
+ st = &sha_repetition_tests[i];
+ if (!sha_hash_from_algorithm(st->algorithm, &label, NULL, &md,
+ &out_len))
+ goto failed;
+
+ /* EVP digest */
+ if (!EVP_DigestInit_ex(hash, md, NULL)) {
+ fprintf(stderr,
+ "FAIL (%s): EVP_DigestInit_ex failed\n",
+ label);
+ goto failed;
+ }
+
+ memset(buf, st->in, sizeof(buf));
+
+ for (j = 0; j < st->in_repetitions;) {
+ part_len = arc4random_uniform(sizeof(buf));
+ if (part_len > st->in_repetitions - j)
+ part_len = st->in_repetitions - j;
+
+ if (!EVP_DigestUpdate(hash, buf, part_len)) {
+ fprintf(stderr,
+ "FAIL (%s): EVP_DigestUpdate failed\n",
+ label);
+ goto failed;
+ }
+
+ j += part_len;
+ }
+
+ if (!EVP_DigestFinal_ex(hash, out, NULL)) {
+ fprintf(stderr,
+ "FAIL (%s): EVP_DigestFinal_ex failed\n",
+ label);
+ goto failed;
+ }
+
+ if (memcmp(st->out, out, out_len) != 0) {
+ fprintf(stderr, "FAIL (%s): EVP mismatch\n", label);
+ goto failed;
+ }
+ }
+
+ failed = 0;
+
+ failed:
+ EVP_MD_CTX_free(hash);
+ return failed;
+}
+
int
main(int argc, char **argv)
{
int failed = 0;
failed |= sha_test();
+ failed |= sha_repetition_test();
return failed;
}
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