Add a nicely licensed, table-driven test for SHA

This tests covers the NIST vectors for SHA-{1,224,256,384,256} and will
soon be able to replace the old SHA tests entirely.

From Joshua Sing <joshua () hypera ! dev>

2 files changed, 448 insertions, 0 deletions

diff --git a/src/regress/lib/libcrypto/sha/Makefile b/src/regress/lib/libcrypto/sha/Makefile
new file mode 100644
index 0000000000..6ec223116d
--- /dev/null
+++ b/src/regress/lib/libcrypto/sha/Makefile
@@ -0,0 +1,9 @@
+#       $OpenBSD: Makefile,v 1.5 2022/09/01 14:02:41 tb Exp $
+
+PROG =          sha_test
+LDADD =         -lcrypto
+DPADD =         ${LIBCRYPTO}
+WARNINGS =      Yes
+CFLAGS +=       -DLIBRESSL_INTERNAL -Werror
+
+.include <bsd.regress.mk>
diff --git a/src/regress/lib/libcrypto/sha/sha_test.c b/src/regress/lib/libcrypto/sha/sha_test.c
new file mode 100644
index 0000000000..cf954aa50c
--- /dev/null
+++ b/src/regress/lib/libcrypto/sha/sha_test.c
@@ -0,0 +1,439 @@
+/*      $OpenBSD: sha_test.c,v 1.1 2022/09/01 14:02:41 tb Exp $ */
+/*
+ * Copyright (c) 2022 Joshua Sing <joshua@hypera.dev>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <openssl/evp.h>
+#include <openssl/sha.h>
+
+#include <stdint.h>
+#include <string.h>
+
+struct sha_test {
+        const int algorithm;
+        const uint8_t in[128];
+        const size_t in_len;
+        const uint8_t out[EVP_MAX_MD_SIZE];
+};
+
+struct sha_test sha_tests[] = {
+        /* SHA-1 */
+        {
+                .algorithm = NID_sha1,
+                .in = "abc",
+                .in_len = 3,
+                .out = {
+                        0xa9, 0x99, 0x3e, 0x36, 0x47, 0x06, 0x81, 0x6a,
+                        0xba, 0x3e, 0x25, 0x71, 0x78, 0x50, 0xc2, 0x6c,
+                        0x9c, 0xd0, 0xd8, 0x9d,
+                }
+        },
+        {
+                .algorithm = NID_sha1,
+                .in = "",
+                .in_len = 0,
+                .out = {
+                        0xda, 0x39, 0xa3, 0xee, 0x5e, 0x6b, 0x4b, 0x0d,
+                        0x32, 0x55, 0xbf, 0xef, 0x95, 0x60, 0x18, 0x90,
+                        0xaf, 0xd8, 0x07, 0x09,
+                }
+        },
+        {
+                .algorithm = NID_sha1,
+                .in =
+                    "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmno"
+                    "mnopnopq",
+                .in_len = 56,
+                .out = {
+                        0x84, 0x98, 0x3e, 0x44, 0x1c, 0x3b, 0xd2, 0x6e,
+                        0xba, 0xae, 0x4a, 0xa1, 0xf9, 0x51, 0x29, 0xe5,
+                        0xe5, 0x46, 0x70, 0xf1,
+                }
+        },
+        {
+                .algorithm = NID_sha1,
+                .in =
+                    "abcdefghbcdefghicdefghijdefghijkefghijklfghijklm"
+                    "ghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrs"
+                    "mnopqrstnopqrstu",
+                .in_len = 112,
+                .out = {
+                        0xa4, 0x9b, 0x24, 0x46, 0xa0, 0x2c, 0x64, 0x5b,
+                        0xf4, 0x19, 0xf9, 0x95, 0xb6, 0x70, 0x91, 0x25,
+                        0x3a, 0x04, 0xa2, 0x59,
+                }
+        },
+
+        /* SHA-224 */
+        {
+                .algorithm = NID_sha224,
+                .in = "abc",
+                .in_len = 3,
+                .out = {
+                        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,
+                }
+        },
+        {
+                .algorithm = NID_sha224,
+                .in = "",
+                .in_len = 0,
+                .out = {
+                        0xd1, 0x4a, 0x02, 0x8c, 0x2a, 0x3a, 0x2b, 0xc9,
+                        0x47, 0x61, 0x02, 0xbb, 0x28, 0x82, 0x34, 0xc4,
+                        0x15, 0xa2, 0xb0, 0x1f, 0x82, 0x8e, 0xa6, 0x2a,
+                        0xc5, 0xb3, 0xe4, 0x2f,
+                }
+        },
+        {
+                .algorithm = NID_sha224,
+                .in = "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmno"
+                    "mnopnopq",
+                .in_len = 56,
+                .out = {
+                        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,
+                }
+        },
+        {
+                .algorithm = NID_sha224,
+                .in =
+                    "abcdefghbcdefghicdefghijdefghijkefghijklfghijklm"
+                    "ghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrs"
+                    "mnopqrstnopqrstu",
+                .in_len = 112,
+                .out = {
+                        0xc9, 0x7c, 0xa9, 0xa5, 0x59, 0x85, 0x0c, 0xe9,
+                        0x7a, 0x04, 0xa9, 0x6d, 0xef, 0x6d, 0x99, 0xa9,
+                        0xe0, 0xe0, 0xe2, 0xab, 0x14, 0xe6, 0xb8, 0xdf,
+                        0x26, 0x5f, 0xc0, 0xb3,
+                }
+        },
+
+        /* SHA-256 */
+        {
+                .algorithm = NID_sha256,
+                .in = "abc",
+                .in_len = 3,
+                .out = {
+                        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,
+                }
+        },
+        {
+                .algorithm = NID_sha256,
+                .in = "",
+                .in_len = 0,
+                .out = {
+                        0xe3, 0xb0, 0xc4, 0x42, 0x98, 0xfc, 0x1c, 0x14,
+                        0x9a, 0xfb, 0xf4, 0xc8, 0x99, 0x6f, 0xb9, 0x24,
+                        0x27, 0xae, 0x41, 0xe4, 0x64, 0x9b, 0x93, 0x4c,
+                        0xa4, 0x95, 0x99, 0x1b, 0x78, 0x52, 0xb8, 0x55,
+                }
+        },
+        {
+                .algorithm = NID_sha256,
+                .in =
+                    "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmno"
+                    "mnopnopq",
+                .in_len = 56,
+                .out = {
+                        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,
+                }
+        },
+        {
+                .algorithm = NID_sha256,
+                .in =
+                    "abcdefghbcdefghicdefghijdefghijkefghijklfghijklm"
+                    "ghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrs"
+                    "mnopqrstnopqrstu",
+                .in_len = 112,
+                .out = {
+                        0xcf, 0x5b, 0x16, 0xa7, 0x78, 0xaf, 0x83, 0x80,
+                        0x03, 0x6c, 0xe5, 0x9e, 0x7b, 0x04, 0x92, 0x37,
+                        0x0b, 0x24, 0x9b, 0x11, 0xe8, 0xf0, 0x7a, 0x51,
+                        0xaf, 0xac, 0x45, 0x03, 0x7a, 0xfe, 0xe9, 0xd1,
+                }
+        },
+
+        /* SHA-384 */
+        {
+                .algorithm = NID_sha384,
+                .in = "abc",
+                .in_len = 3,
+                .out = {
+                        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,
+                }
+        },
+        {
+                .algorithm = NID_sha384,
+                .in = "",
+                .in_len = 0,
+                .out = {
+                        0x38, 0xb0, 0x60, 0xa7, 0x51, 0xac, 0x96, 0x38,
+                        0x4c, 0xd9, 0x32, 0x7e, 0xb1, 0xb1, 0xe3, 0x6a,
+                        0x21, 0xfd, 0xb7, 0x11, 0x14, 0xbe, 0x07, 0x43,
+                        0x4c, 0x0c, 0xc7, 0xbf, 0x63, 0xf6, 0xe1, 0xda,
+                        0x27, 0x4e, 0xde, 0xbf, 0xe7, 0x6f, 0x65, 0xfb,
+                        0xd5, 0x1a, 0xd2, 0xf1, 0x48, 0x98, 0xb9, 0x5b,
+                }
+        },
+        {
+                .algorithm = NID_sha384,
+                .in =
+                    "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmno"
+                    "mnopnopq",
+                .in_len = 56,
+                .out = {
+                        0x33, 0x91, 0xfd, 0xdd, 0xfc, 0x8d, 0xc7, 0x39,
+                        0x37, 0x07, 0xa6, 0x5b, 0x1b, 0x47, 0x09, 0x39,
+                        0x7c, 0xf8, 0xb1, 0xd1, 0x62, 0xaf, 0x05, 0xab,
+                        0xfe, 0x8f, 0x45, 0x0d, 0xe5, 0xf3, 0x6b, 0xc6,
+                        0xb0, 0x45, 0x5a, 0x85, 0x20, 0xbc, 0x4e, 0x6f,
+                        0x5f, 0xe9, 0x5b, 0x1f, 0xe3, 0xc8, 0x45, 0x2b,
+                }
+        },
+        {
+                .algorithm = NID_sha384,
+                .in =
+                    "abcdefghbcdefghicdefghijdefghijkefghijklfghijklm"
+                    "ghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrs"
+                    "mnopqrstnopqrstu",
+                .in_len = 112,
+                .out = {
+                        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,
+                }
+        },
+
+        /* SHA-512 */
+        {
+                .algorithm = NID_sha512,
+                .in = "abc",
+                .in_len = 3,
+                .out = {
+                        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,
+                }
+        },
+        {
+                .algorithm = NID_sha512,
+                .in = "",
+                .in_len = 0,
+                .out = {
+                        0xcf, 0x83, 0xe1, 0x35, 0x7e, 0xef, 0xb8, 0xbd,
+                        0xf1, 0x54, 0x28, 0x50, 0xd6, 0x6d, 0x80, 0x07,
+                        0xd6, 0x20, 0xe4, 0x05, 0x0b, 0x57, 0x15, 0xdc,
+                        0x83, 0xf4, 0xa9, 0x21, 0xd3, 0x6c, 0xe9, 0xce,
+                        0x47, 0xd0, 0xd1, 0x3c, 0x5d, 0x85, 0xf2, 0xb0,
+                        0xff, 0x83, 0x18, 0xd2, 0x87, 0x7e, 0xec, 0x2f,
+                        0x63, 0xb9, 0x31, 0xbd, 0x47, 0x41, 0x7a, 0x81,
+                        0xa5, 0x38, 0x32, 0x7a, 0xf9, 0x27, 0xda, 0x3e,
+                }
+        },
+        {
+                .algorithm = NID_sha512,
+                .in =
+                    "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmno"
+                    "mnopnopq",
+                .in_len = 56,
+                .out = {
+                        0x20, 0x4a, 0x8f, 0xc6, 0xdd, 0xa8, 0x2f, 0x0a,
+                        0x0c, 0xed, 0x7b, 0xeb, 0x8e, 0x08, 0xa4, 0x16,
+                        0x57, 0xc1, 0x6e, 0xf4, 0x68, 0xb2, 0x28, 0xa8,
+                        0x27, 0x9b, 0xe3, 0x31, 0xa7, 0x03, 0xc3, 0x35,
+                        0x96, 0xfd, 0x15, 0xc1, 0x3b, 0x1b, 0x07, 0xf9,
+                        0xaa, 0x1d, 0x3b, 0xea, 0x57, 0x78, 0x9c, 0xa0,
+                        0x31, 0xad, 0x85, 0xc7, 0xa7, 0x1d, 0xd7, 0x03,
+                        0x54, 0xec, 0x63, 0x12, 0x38, 0xca, 0x34, 0x45,
+                }
+        },
+        {
+                .algorithm = NID_sha512,
+                .in =
+                    "abcdefghbcdefghicdefghijdefghijkefghijklfghijklm"
+                    "ghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrs"
+                    "mnopqrstnopqrstu",
+                .in_len = 112,
+                .out = {
+                        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,
+                }
+        },
+};
+
+#define N_SHA_TESTS (sizeof(sha_tests) / sizeof(sha_tests[0]))
+
+static int
+sha_test(void)
+{
+        unsigned char *(*sha_func)(const unsigned char *, size_t, unsigned char *);
+        struct sha_test *st;
+        EVP_MD_CTX *hash = NULL;
+        const EVP_MD *md;
+        uint8_t out[EVP_MAX_MD_SIZE];
+        size_t in_len, out_len;
+        size_t i;
+        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_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);
+                        goto failed;
+                }
+
+                /* Digest */
+                memset(out, 0, sizeof(out));
+                sha_func(st->in, st->in_len, out);
+                if (memcmp(st->out, out, out_len) != 0) {
+                        fprintf(stderr, "FAIL (%s): mismatch\n", label);
+                        goto failed;
+                }
+
+                /* 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);
+                        goto failed;
+                }
+
+                if (memcmp(st->out, out, out_len) != 0) {
+                        fprintf(stderr, "FAIL (%s): EVP single-shot mismatch\n",
+                            label);
+                        goto failed;
+                }
+
+                /* EVP digest */
+                memset(out, 0, sizeof(out));
+                if (!EVP_DigestInit_ex(hash, md, NULL)) {
+                        fprintf(stderr, "FAIL (%s): EVP_DigestInit_ex failed\n",
+                            label);
+                        goto failed;
+                }
+
+                in_len = st->in_len / 2;
+                if (!EVP_DigestUpdate(hash, st->in, in_len)) {
+                        fprintf(stderr,
+                            "FAIL (%s): EVP_DigestUpdate first half failed\n",
+                            label);
+                        goto failed;
+                }
+
+                if (!EVP_DigestUpdate(hash, st->in + in_len,
+                    st->in_len - in_len)) {
+                        fprintf(stderr,
+                            "FAIL (%s): EVP_DigestUpdate second half failed\n",
+                            label);
+                        goto failed;
+                }
+
+                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();
+
+        return failed;
+}