2 * Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of the
7 * License, or any later version.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
20 FILE_LICENCE ( GPL2_OR_LATER );
29 #include <ipxe/sha256.h>
30 #include <ipxe/test.h>
31 #include "digest_test.h"
33 /** An SHA-256 test vector */
34 struct sha256_test_vector {
37 /** Test data length */
39 /** Expected digest */
40 uint8_t digest[SHA256_DIGEST_SIZE];
43 /** SHA-256 test vectors */
44 static struct sha256_test_vector sha256_test_vectors[] = {
47 * Expected digest value obtained from "sha256sum /dev/null"
50 { 0xe3, 0xb0, 0xc4, 0x42, 0x98, 0xfc, 0x1c, 0x14, 0x9a, 0xfb, 0xf4,
51 0xc8, 0x99, 0x6f, 0xb9, 0x24, 0x27, 0xae, 0x41, 0xe4, 0x64, 0x9b,
52 0x93, 0x4c, 0xa4, 0x95, 0x99, 0x1b, 0x78, 0x52, 0xb8, 0x55 } },
53 /* Test data and expected digests taken from the NIST
54 * Cryptographic Toolkit Algorithm Examples at
55 * http://csrc.nist.gov/groups/ST/toolkit/documents/Examples/SHA256.pdf
58 { 0xba, 0x78, 0x16, 0xbf, 0x8f, 0x01, 0xcf, 0xea, 0x41, 0x41, 0x40,
59 0xde, 0x5d, 0xae, 0x22, 0x23, 0xb0, 0x03, 0x61, 0xa3, 0x96, 0x17,
60 0x7a, 0x9c, 0xb4, 0x10, 0xff, 0x61, 0xf2, 0x00, 0x15, 0xad } },
61 { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq", 56,
62 { 0x24, 0x8d, 0x6a, 0x61, 0xd2, 0x06, 0x38, 0xb8, 0xe5, 0xc0, 0x26,
63 0x93, 0x0c, 0x3e, 0x60, 0x39, 0xa3, 0x3c, 0xe4, 0x59, 0x64, 0xff,
64 0x21, 0x67, 0xf6, 0xec, 0xed, 0xd4, 0x19, 0xdb, 0x06, 0xc1 } },
67 /** SHA-256 test fragment lists */
68 static struct digest_test_fragments sha256_test_fragments[] = {
70 { { 1, 1, 1, 1, 1, 1, 1, 1 } },
71 { { 2, 0, 23, 4, 6, 1, 0 } },
75 * Perform SHA-256 self-test
78 static void sha256_test_exec ( void ) {
79 struct digest_algorithm *digest = &sha256_algorithm;
80 struct sha256_test_vector *test;
85 /* Correctness test */
86 for ( i = 0 ; i < ( sizeof ( sha256_test_vectors ) /
87 sizeof ( sha256_test_vectors[0] ) ) ; i++ ) {
88 test = &sha256_test_vectors[i];
89 /* Test with a single pass */
90 digest_ok ( digest, NULL, test->data, test->len, test->digest );
91 /* Test with fragment lists */
92 for ( j = 0 ; j < ( sizeof ( sha256_test_fragments ) /
93 sizeof ( sha256_test_fragments[0] )); j++ ){
94 digest_ok ( digest, &sha256_test_fragments[j],
95 test->data, test->len, test->digest );
100 cost = digest_cost ( digest );
101 DBG ( "SHA256 required %ld cycles per byte\n", cost );
104 /** SHA-256 self-test */
105 struct self_test sha256_test __self_test = {
107 .exec = sha256_test_exec,