Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
Jan Glauber | 5265eeb | 2007-10-09 22:43:13 +0800 | [diff] [blame] | 2 | /* |
| 3 | * Common values for SHA algorithms |
| 4 | */ |
| 5 | |
| 6 | #ifndef _CRYPTO_SHA_H |
| 7 | #define _CRYPTO_SHA_H |
| 8 | |
Herbert Xu | e2a7ce4 | 2009-07-09 21:27:13 +0800 | [diff] [blame] | 9 | #include <linux/types.h> |
| 10 | |
Jan Glauber | 5265eeb | 2007-10-09 22:43:13 +0800 | [diff] [blame] | 11 | #define SHA1_DIGEST_SIZE 20 |
| 12 | #define SHA1_BLOCK_SIZE 64 |
| 13 | |
Jonathan Lynch | cd12fb9 | 2007-11-10 20:08:25 +0800 | [diff] [blame] | 14 | #define SHA224_DIGEST_SIZE 28 |
| 15 | #define SHA224_BLOCK_SIZE 64 |
| 16 | |
Jan Glauber | 5265eeb | 2007-10-09 22:43:13 +0800 | [diff] [blame] | 17 | #define SHA256_DIGEST_SIZE 32 |
| 18 | #define SHA256_BLOCK_SIZE 64 |
| 19 | |
| 20 | #define SHA384_DIGEST_SIZE 48 |
| 21 | #define SHA384_BLOCK_SIZE 128 |
| 22 | |
| 23 | #define SHA512_DIGEST_SIZE 64 |
| 24 | #define SHA512_BLOCK_SIZE 128 |
| 25 | |
| 26 | #define SHA1_H0 0x67452301UL |
| 27 | #define SHA1_H1 0xefcdab89UL |
| 28 | #define SHA1_H2 0x98badcfeUL |
| 29 | #define SHA1_H3 0x10325476UL |
| 30 | #define SHA1_H4 0xc3d2e1f0UL |
| 31 | |
Jonathan Lynch | cd12fb9 | 2007-11-10 20:08:25 +0800 | [diff] [blame] | 32 | #define SHA224_H0 0xc1059ed8UL |
| 33 | #define SHA224_H1 0x367cd507UL |
| 34 | #define SHA224_H2 0x3070dd17UL |
| 35 | #define SHA224_H3 0xf70e5939UL |
| 36 | #define SHA224_H4 0xffc00b31UL |
| 37 | #define SHA224_H5 0x68581511UL |
| 38 | #define SHA224_H6 0x64f98fa7UL |
| 39 | #define SHA224_H7 0xbefa4fa4UL |
| 40 | |
Jan Glauber | 5265eeb | 2007-10-09 22:43:13 +0800 | [diff] [blame] | 41 | #define SHA256_H0 0x6a09e667UL |
| 42 | #define SHA256_H1 0xbb67ae85UL |
| 43 | #define SHA256_H2 0x3c6ef372UL |
| 44 | #define SHA256_H3 0xa54ff53aUL |
| 45 | #define SHA256_H4 0x510e527fUL |
| 46 | #define SHA256_H5 0x9b05688cUL |
| 47 | #define SHA256_H6 0x1f83d9abUL |
| 48 | #define SHA256_H7 0x5be0cd19UL |
| 49 | |
| 50 | #define SHA384_H0 0xcbbb9d5dc1059ed8ULL |
| 51 | #define SHA384_H1 0x629a292a367cd507ULL |
| 52 | #define SHA384_H2 0x9159015a3070dd17ULL |
| 53 | #define SHA384_H3 0x152fecd8f70e5939ULL |
| 54 | #define SHA384_H4 0x67332667ffc00b31ULL |
| 55 | #define SHA384_H5 0x8eb44a8768581511ULL |
| 56 | #define SHA384_H6 0xdb0c2e0d64f98fa7ULL |
| 57 | #define SHA384_H7 0x47b5481dbefa4fa4ULL |
| 58 | |
| 59 | #define SHA512_H0 0x6a09e667f3bcc908ULL |
| 60 | #define SHA512_H1 0xbb67ae8584caa73bULL |
| 61 | #define SHA512_H2 0x3c6ef372fe94f82bULL |
| 62 | #define SHA512_H3 0xa54ff53a5f1d36f1ULL |
| 63 | #define SHA512_H4 0x510e527fade682d1ULL |
| 64 | #define SHA512_H5 0x9b05688c2b3e6c1fULL |
| 65 | #define SHA512_H6 0x1f83d9abfb41bd6bULL |
| 66 | #define SHA512_H7 0x5be0cd19137e2179ULL |
| 67 | |
LABBE Corentin | 0c4c78d | 2015-12-17 13:45:39 +0100 | [diff] [blame] | 68 | extern const u8 sha1_zero_message_hash[SHA1_DIGEST_SIZE]; |
| 69 | |
| 70 | extern const u8 sha224_zero_message_hash[SHA224_DIGEST_SIZE]; |
| 71 | |
| 72 | extern const u8 sha256_zero_message_hash[SHA256_DIGEST_SIZE]; |
| 73 | |
Antoine Tenart | 26f7120 | 2018-05-29 14:13:49 +0200 | [diff] [blame] | 74 | extern const u8 sha384_zero_message_hash[SHA384_DIGEST_SIZE]; |
| 75 | |
Antoine Tenart | 30c217e | 2018-05-29 14:13:45 +0200 | [diff] [blame] | 76 | extern const u8 sha512_zero_message_hash[SHA512_DIGEST_SIZE]; |
| 77 | |
Herbert Xu | e2a7ce4 | 2009-07-09 21:27:13 +0800 | [diff] [blame] | 78 | struct sha1_state { |
Herbert Xu | e2a7ce4 | 2009-07-09 21:27:13 +0800 | [diff] [blame] | 79 | u32 state[SHA1_DIGEST_SIZE / 4]; |
Ard Biesheuvel | c4d5b9f | 2015-04-09 12:55:33 +0200 | [diff] [blame] | 80 | u64 count; |
Herbert Xu | e2a7ce4 | 2009-07-09 21:27:13 +0800 | [diff] [blame] | 81 | u8 buffer[SHA1_BLOCK_SIZE]; |
| 82 | }; |
| 83 | |
Herbert Xu | 9b2fda7 | 2009-07-10 13:00:27 +0800 | [diff] [blame] | 84 | struct sha256_state { |
Herbert Xu | 9b2fda7 | 2009-07-10 13:00:27 +0800 | [diff] [blame] | 85 | u32 state[SHA256_DIGEST_SIZE / 4]; |
Ard Biesheuvel | 11b8d5e | 2015-04-09 12:55:34 +0200 | [diff] [blame] | 86 | u64 count; |
Herbert Xu | 9b2fda7 | 2009-07-10 13:00:27 +0800 | [diff] [blame] | 87 | u8 buf[SHA256_BLOCK_SIZE]; |
| 88 | }; |
| 89 | |
Herbert Xu | 1f38ad8 | 2009-07-22 11:48:18 +0800 | [diff] [blame] | 90 | struct sha512_state { |
Herbert Xu | 13887ed | 2009-07-22 12:22:43 +0800 | [diff] [blame] | 91 | u64 state[SHA512_DIGEST_SIZE / 8]; |
Ard Biesheuvel | b84a2a0b | 2015-04-09 12:55:35 +0200 | [diff] [blame] | 92 | u64 count[2]; |
Herbert Xu | 13887ed | 2009-07-22 12:22:43 +0800 | [diff] [blame] | 93 | u8 buf[SHA512_BLOCK_SIZE]; |
Herbert Xu | 1f38ad8 | 2009-07-22 11:48:18 +0800 | [diff] [blame] | 94 | }; |
| 95 | |
Herbert Xu | 4619b6b | 2011-08-16 14:03:05 +0800 | [diff] [blame] | 96 | struct shash_desc; |
| 97 | |
Mathias Krause | 7c39017 | 2011-08-04 20:19:24 +0200 | [diff] [blame] | 98 | extern int crypto_sha1_update(struct shash_desc *desc, const u8 *data, |
| 99 | unsigned int len); |
| 100 | |
Ard Biesheuvel | 7c71f0f | 2015-04-09 12:55:36 +0200 | [diff] [blame] | 101 | extern int crypto_sha1_finup(struct shash_desc *desc, const u8 *data, |
| 102 | unsigned int len, u8 *hash); |
| 103 | |
Tim Chen | 35d2c9d | 2013-03-26 13:58:49 -0700 | [diff] [blame] | 104 | extern int crypto_sha256_update(struct shash_desc *desc, const u8 *data, |
| 105 | unsigned int len); |
Tim Chen | bf70fa9 | 2013-03-26 13:59:25 -0700 | [diff] [blame] | 106 | |
Ard Biesheuvel | a2e5ba4 | 2015-04-09 12:55:37 +0200 | [diff] [blame] | 107 | extern int crypto_sha256_finup(struct shash_desc *desc, const u8 *data, |
| 108 | unsigned int len, u8 *hash); |
| 109 | |
Tim Chen | bf70fa9 | 2013-03-26 13:59:25 -0700 | [diff] [blame] | 110 | extern int crypto_sha512_update(struct shash_desc *desc, const u8 *data, |
| 111 | unsigned int len); |
Ard Biesheuvel | ca14258 | 2015-04-09 12:55:38 +0200 | [diff] [blame] | 112 | |
| 113 | extern int crypto_sha512_finup(struct shash_desc *desc, const u8 *data, |
| 114 | unsigned int len, u8 *hash); |
Hans de Goede | 34d6245 | 2019-09-01 22:35:31 +0200 | [diff] [blame] | 115 | |
| 116 | /* |
| 117 | * Stand-alone implementation of the SHA256 algorithm. It is designed to |
| 118 | * have as little dependencies as possible so it can be used in the |
| 119 | * kexec_file purgatory. In other cases you should generally use the |
| 120 | * hash APIs from include/crypto/hash.h. Especially when hashing large |
| 121 | * amounts of data as those APIs may be hw-accelerated. |
| 122 | * |
| 123 | * For details see lib/crypto/sha256.c |
| 124 | */ |
| 125 | |
Hans de Goede | c75c66b | 2019-09-01 22:35:32 +0200 | [diff] [blame] | 126 | static inline int sha256_init(struct sha256_state *sctx) |
| 127 | { |
| 128 | sctx->state[0] = SHA256_H0; |
| 129 | sctx->state[1] = SHA256_H1; |
| 130 | sctx->state[2] = SHA256_H2; |
| 131 | sctx->state[3] = SHA256_H3; |
| 132 | sctx->state[4] = SHA256_H4; |
| 133 | sctx->state[5] = SHA256_H5; |
| 134 | sctx->state[6] = SHA256_H6; |
| 135 | sctx->state[7] = SHA256_H7; |
| 136 | sctx->count = 0; |
| 137 | |
| 138 | return 0; |
| 139 | } |
Hans de Goede | 34d6245 | 2019-09-01 22:35:31 +0200 | [diff] [blame] | 140 | extern int sha256_update(struct sha256_state *sctx, const u8 *input, |
| 141 | unsigned int length); |
| 142 | extern int sha256_final(struct sha256_state *sctx, u8 *hash); |
| 143 | |
Hans de Goede | c75c66b | 2019-09-01 22:35:32 +0200 | [diff] [blame] | 144 | static inline int sha224_init(struct sha256_state *sctx) |
| 145 | { |
| 146 | sctx->state[0] = SHA224_H0; |
| 147 | sctx->state[1] = SHA224_H1; |
| 148 | sctx->state[2] = SHA224_H2; |
| 149 | sctx->state[3] = SHA224_H3; |
| 150 | sctx->state[4] = SHA224_H4; |
| 151 | sctx->state[5] = SHA224_H5; |
| 152 | sctx->state[6] = SHA224_H6; |
| 153 | sctx->state[7] = SHA224_H7; |
| 154 | sctx->count = 0; |
| 155 | |
| 156 | return 0; |
| 157 | } |
Hans de Goede | 34d6245 | 2019-09-01 22:35:31 +0200 | [diff] [blame] | 158 | extern int sha224_update(struct sha256_state *sctx, const u8 *input, |
| 159 | unsigned int length); |
| 160 | extern int sha224_final(struct sha256_state *sctx, u8 *hash); |
| 161 | |
Jan Glauber | 5265eeb | 2007-10-09 22:43:13 +0800 | [diff] [blame] | 162 | #endif |