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Side by Side Diff: src/platform/vboot_reference/tests/signature_digest.c

Issue 579007: Add generic wrappers for performing message digest operations. (Closed)
Patch Set: Created 10 years, 10 months ago
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1 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved. 1 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
2 * Use of this source code is governed by a BSD-style license that can be 2 * Use of this source code is governed by a BSD-style license that can be
3 * found in the LICENSE file. 3 * found in the LICENSE file.
4 * 4 *
5 * Utility that outputs the message digest of the contents of a file in a 5 * Utility that outputs the message digest of the contents of a file in a
6 * format that can be used as input to OpenSSL for an RSA signature. 6 * format that can be used as input to OpenSSL for an RSA signature.
7 * Needed until the stable OpenSSL release supports SHA-256/512 digests for 7 * Needed until the stable OpenSSL release supports SHA-256/512 digests for
8 * RSA signatures. 8 * RSA signatures.
9 * Outputs DigestInfo || Digest where DigestInfo is the OID depending on the 9 * Outputs DigestInfo || Digest where DigestInfo is the OID depending on the
10 * choice of the hash algorithm (see padding.c). 10 * choice of the hash algorithm (see padding.c).
11 * 11 *
12 */ 12 */
13 13
14 #include "signature_digest.h" 14 #include "signature_digest.h"
15 15
16 #include <stdio.h> 16 #include <stdio.h>
17 #include <stdlib.h> 17 #include <stdlib.h>
18 #include <unistd.h> 18 #include <unistd.h>
19 19
20 #include "digest_utility.h"
21 #include "padding.h" 20 #include "padding.h"
22 #include "sha.h" 21 #include "sha.h"
22 #include "sha_utility.h"
23 23
24 uint8_t* prepend_digestinfo(int algorithm, uint8_t* digest) { 24 uint8_t* prepend_digestinfo(int algorithm, uint8_t* digest) {
25 const int digest_size = hash_size_map[algorithm]; 25 const int digest_size = hash_size_map[algorithm];
26 const int digestinfo_size = digestinfo_size_map[algorithm]; 26 const int digestinfo_size = digestinfo_size_map[algorithm];
27 const uint8_t* digestinfo = hash_digestinfo_map[algorithm]; 27 const uint8_t* digestinfo = hash_digestinfo_map[algorithm];
28 uint8_t* p = malloc(digestinfo_size + digest_size); 28 uint8_t* p = malloc(digestinfo_size + digest_size);
29 memcpy(p, digestinfo, digestinfo_size); 29 memcpy(p, digestinfo, digestinfo_size);
30 memcpy(p + digestinfo_size, digest, digest_size); 30 memcpy(p + digestinfo_size, digest, digest_size);
31 return p; 31 return p;
32 } 32 }
(...skipping 12 matching lines...) Expand all
45 fprintf(stderr, "\t%d for %s\n", i, algo_strings[i]); 45 fprintf(stderr, "\t%d for %s\n", i, algo_strings[i]);
46 return -1; 46 return -1;
47 } 47 }
48 48
49 algorithm = atoi(argv[1]); 49 algorithm = atoi(argv[1]);
50 if (algorithm >= kNumAlgorithms) { 50 if (algorithm >= kNumAlgorithms) {
51 fprintf(stderr, "Invalid Algorithm!\n"); 51 fprintf(stderr, "Invalid Algorithm!\n");
52 goto failure; 52 goto failure;
53 } 53 }
54 54
55 if (!(digest = calculate_digest(argv[2], algorithm))) 55 if (!(digest = DigestFile(argv[2], algorithm)))
56 goto failure; 56 goto failure;
57 57
58 info_digest = prepend_digestinfo(algorithm, digest); 58 info_digest = prepend_digestinfo(algorithm, digest);
59 write(1, info_digest, hash_size_map[algorithm] + 59 write(1, info_digest, hash_size_map[algorithm] +
60 digestinfo_size_map[algorithm]); 60 digestinfo_size_map[algorithm]);
61 61
62 failure: 62 failure:
63 free(digest); 63 free(digest);
64 free(info_digest); 64 free(info_digest);
65 free(signature); 65 free(signature);
66 66
67 return 0; 67 return 0;
68 } 68 }
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