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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 * Common functions between firmware and kernel verified boot. | 5 * Common functions between firmware and kernel verified boot. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef VBOOT_REFERENCE_VBOOT_COMMON_H_ | 8 #ifndef VBOOT_REFERENCE_VBOOT_COMMON_H_ |
9 #define VBOOT_REFERENCE_VBOOT_COMMON_H_ | 9 #define VBOOT_REFERENCE_VBOOT_COMMON_H_ |
10 | 10 |
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63 int PublicKeyCopy(VbPublicKey* dest, const VbPublicKey* src); | 63 int PublicKeyCopy(VbPublicKey* dest, const VbPublicKey* src); |
64 | 64 |
65 | 65 |
66 /* Converts a public key to RsaPublicKey format. The returned key must | 66 /* Converts a public key to RsaPublicKey format. The returned key must |
67 * be freed using RSAPublicKeyFree(). | 67 * be freed using RSAPublicKeyFree(). |
68 * | 68 * |
69 * Returns NULL if error. */ | 69 * Returns NULL if error. */ |
70 RSAPublicKey* PublicKeyToRSA(const VbPublicKey* key); | 70 RSAPublicKey* PublicKeyToRSA(const VbPublicKey* key); |
71 | 71 |
72 | 72 |
73 /* Verifies [data] matches signature [sig] using [key]. */ | 73 /* Verifies [data] matches signature [sig] using [key]. [size] is the size |
74 int VerifyData(const uint8_t* data, const VbSignature* sig, | 74 * of the data buffer; the amount of data to be validated is contained in |
| 75 * sig->data_size. */ |
| 76 int VerifyData(const uint8_t* data, uint64_t size, const VbSignature* sig, |
75 const RSAPublicKey* key); | 77 const RSAPublicKey* key); |
76 | 78 |
77 | 79 |
78 /* Verifies a secure hash digest from DigestBuf() or DigestFinal(), | 80 /* Verifies a secure hash digest from DigestBuf() or DigestFinal(), |
79 * using [key]. */ | 81 * using [key]. */ |
80 int VerifyDigest(const uint8_t* digest, const VbSignature *sig, | 82 int VerifyDigest(const uint8_t* digest, const VbSignature *sig, |
81 const RSAPublicKey* key); | 83 const RSAPublicKey* key); |
82 | 84 |
83 | 85 |
84 /* Checks the sanity of a key block of size [size] bytes, using public | 86 /* Checks the sanity of a key block of size [size] bytes, using public |
85 * key [key]. If [key]==NULL, uses only the block checksum to verify | 87 * key [key]. If [key]==NULL, uses only the block checksum to verify |
86 * the key block. Header fields are also checked for sanity. Does not | 88 * the key block. Header fields are also checked for sanity. Does not |
87 * verify key index or key block flags. */ | 89 * verify key index or key block flags. */ |
88 int KeyBlockVerify(const VbKeyBlockHeader* block, uint64_t size, | 90 int KeyBlockVerify(const VbKeyBlockHeader* block, uint64_t size, |
89 const VbPublicKey *key); | 91 const VbPublicKey *key); |
90 | 92 |
91 | 93 |
92 /* Checks the sanity of a firmware preamble of size [size] bytes, | 94 /* Checks the sanity of a firmware preamble of size [size] bytes, |
93 * using public key [key]. | 95 * using public key [key]. |
94 * | 96 * |
95 * Returns VBOOT_SUCCESS if successful. */ | 97 * Returns VBOOT_SUCCESS if successful. */ |
96 int VerifyFirmwarePreamble2(const VbFirmwarePreambleHeader* preamble, | 98 int VerifyFirmwarePreamble(const VbFirmwarePreambleHeader* preamble, |
97 uint64_t size, const RSAPublicKey* key); | 99 uint64_t size, const RSAPublicKey* key); |
98 | 100 |
99 | 101 |
100 /* Checks the sanity of a kernel preamble of size [size] bytes, | 102 /* Checks the sanity of a kernel preamble of size [size] bytes, |
101 * using public key [key]. | 103 * using public key [key]. |
102 * | 104 * |
103 * Returns VBOOT_SUCCESS if successful. */ | 105 * Returns VBOOT_SUCCESS if successful. */ |
104 int VerifyKernelPreamble2(const VbKernelPreambleHeader* preamble, | 106 int VerifyKernelPreamble(const VbKernelPreambleHeader* preamble, |
105 uint64_t size, const RSAPublicKey* key); | 107 uint64_t size, const RSAPublicKey* key); |
106 | 108 |
107 | 109 |
108 | 110 |
109 | 111 |
110 #endif /* VBOOT_REFERENCE_VBOOT_COMMON_H_ */ | 112 #endif /* VBOOT_REFERENCE_VBOOT_COMMON_H_ */ |
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