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Commit | Line | Data |
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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
5265eeb2 | 2 | /* |
a24d22b2 | 3 | * Common values for SHA-2 algorithms |
5265eeb2 JG |
4 | */ |
5 | ||
a24d22b2 EB |
6 | #ifndef _CRYPTO_SHA2_H |
7 | #define _CRYPTO_SHA2_H | |
5265eeb2 | 8 | |
e2a7ce4e HX |
9 | #include <linux/types.h> |
10 | ||
cd12fb90 JL |
11 | #define SHA224_DIGEST_SIZE 28 |
12 | #define SHA224_BLOCK_SIZE 64 | |
13 | ||
5265eeb2 JG |
14 | #define SHA256_DIGEST_SIZE 32 |
15 | #define SHA256_BLOCK_SIZE 64 | |
16 | ||
17 | #define SHA384_DIGEST_SIZE 48 | |
18 | #define SHA384_BLOCK_SIZE 128 | |
19 | ||
20 | #define SHA512_DIGEST_SIZE 64 | |
21 | #define SHA512_BLOCK_SIZE 128 | |
22 | ||
cd12fb90 JL |
23 | #define SHA224_H0 0xc1059ed8UL |
24 | #define SHA224_H1 0x367cd507UL | |
25 | #define SHA224_H2 0x3070dd17UL | |
26 | #define SHA224_H3 0xf70e5939UL | |
27 | #define SHA224_H4 0xffc00b31UL | |
28 | #define SHA224_H5 0x68581511UL | |
29 | #define SHA224_H6 0x64f98fa7UL | |
30 | #define SHA224_H7 0xbefa4fa4UL | |
31 | ||
5265eeb2 JG |
32 | #define SHA256_H0 0x6a09e667UL |
33 | #define SHA256_H1 0xbb67ae85UL | |
34 | #define SHA256_H2 0x3c6ef372UL | |
35 | #define SHA256_H3 0xa54ff53aUL | |
36 | #define SHA256_H4 0x510e527fUL | |
37 | #define SHA256_H5 0x9b05688cUL | |
38 | #define SHA256_H6 0x1f83d9abUL | |
39 | #define SHA256_H7 0x5be0cd19UL | |
40 | ||
41 | #define SHA384_H0 0xcbbb9d5dc1059ed8ULL | |
42 | #define SHA384_H1 0x629a292a367cd507ULL | |
43 | #define SHA384_H2 0x9159015a3070dd17ULL | |
44 | #define SHA384_H3 0x152fecd8f70e5939ULL | |
45 | #define SHA384_H4 0x67332667ffc00b31ULL | |
46 | #define SHA384_H5 0x8eb44a8768581511ULL | |
47 | #define SHA384_H6 0xdb0c2e0d64f98fa7ULL | |
48 | #define SHA384_H7 0x47b5481dbefa4fa4ULL | |
49 | ||
50 | #define SHA512_H0 0x6a09e667f3bcc908ULL | |
51 | #define SHA512_H1 0xbb67ae8584caa73bULL | |
52 | #define SHA512_H2 0x3c6ef372fe94f82bULL | |
53 | #define SHA512_H3 0xa54ff53a5f1d36f1ULL | |
54 | #define SHA512_H4 0x510e527fade682d1ULL | |
55 | #define SHA512_H5 0x9b05688c2b3e6c1fULL | |
56 | #define SHA512_H6 0x1f83d9abfb41bd6bULL | |
57 | #define SHA512_H7 0x5be0cd19137e2179ULL | |
58 | ||
0c4c78de LC |
59 | extern const u8 sha224_zero_message_hash[SHA224_DIGEST_SIZE]; |
60 | ||
61 | extern const u8 sha256_zero_message_hash[SHA256_DIGEST_SIZE]; | |
62 | ||
26f7120b AT |
63 | extern const u8 sha384_zero_message_hash[SHA384_DIGEST_SIZE]; |
64 | ||
30c217ef AT |
65 | extern const u8 sha512_zero_message_hash[SHA512_DIGEST_SIZE]; |
66 | ||
9b2fda7b | 67 | struct sha256_state { |
9b2fda7b | 68 | u32 state[SHA256_DIGEST_SIZE / 4]; |
11b8d5ef | 69 | u64 count; |
9b2fda7b HX |
70 | u8 buf[SHA256_BLOCK_SIZE]; |
71 | }; | |
72 | ||
1f38ad83 | 73 | struct sha512_state { |
13887ed6 | 74 | u64 state[SHA512_DIGEST_SIZE / 8]; |
b84a2a0b | 75 | u64 count[2]; |
13887ed6 | 76 | u8 buf[SHA512_BLOCK_SIZE]; |
1f38ad83 HX |
77 | }; |
78 | ||
4619b6bd HX |
79 | struct shash_desc; |
80 | ||
35d2c9d0 TC |
81 | extern int crypto_sha256_update(struct shash_desc *desc, const u8 *data, |
82 | unsigned int len); | |
bf70fa9d | 83 | |
a2e5ba4f AB |
84 | extern int crypto_sha256_finup(struct shash_desc *desc, const u8 *data, |
85 | unsigned int len, u8 *hash); | |
86 | ||
bf70fa9d TC |
87 | extern int crypto_sha512_update(struct shash_desc *desc, const u8 *data, |
88 | unsigned int len); | |
ca142584 AB |
89 | |
90 | extern int crypto_sha512_finup(struct shash_desc *desc, const u8 *data, | |
91 | unsigned int len, u8 *hash); | |
34d6245f HG |
92 | |
93 | /* | |
94 | * Stand-alone implementation of the SHA256 algorithm. It is designed to | |
95 | * have as little dependencies as possible so it can be used in the | |
96 | * kexec_file purgatory. In other cases you should generally use the | |
97 | * hash APIs from include/crypto/hash.h. Especially when hashing large | |
98 | * amounts of data as those APIs may be hw-accelerated. | |
99 | * | |
100 | * For details see lib/crypto/sha256.c | |
101 | */ | |
102 | ||
13855fd8 | 103 | static inline void sha256_init(struct sha256_state *sctx) |
c75c66bb HG |
104 | { |
105 | sctx->state[0] = SHA256_H0; | |
106 | sctx->state[1] = SHA256_H1; | |
107 | sctx->state[2] = SHA256_H2; | |
108 | sctx->state[3] = SHA256_H3; | |
109 | sctx->state[4] = SHA256_H4; | |
110 | sctx->state[5] = SHA256_H5; | |
111 | sctx->state[6] = SHA256_H6; | |
112 | sctx->state[7] = SHA256_H7; | |
113 | sctx->count = 0; | |
c75c66bb | 114 | } |
13855fd8 EB |
115 | void sha256_update(struct sha256_state *sctx, const u8 *data, unsigned int len); |
116 | void sha256_final(struct sha256_state *sctx, u8 *out); | |
9ea9c58b | 117 | void sha256(const u8 *data, unsigned int len, u8 *out); |
34d6245f | 118 | |
13855fd8 | 119 | static inline void sha224_init(struct sha256_state *sctx) |
c75c66bb HG |
120 | { |
121 | sctx->state[0] = SHA224_H0; | |
122 | sctx->state[1] = SHA224_H1; | |
123 | sctx->state[2] = SHA224_H2; | |
124 | sctx->state[3] = SHA224_H3; | |
125 | sctx->state[4] = SHA224_H4; | |
126 | sctx->state[5] = SHA224_H5; | |
127 | sctx->state[6] = SHA224_H6; | |
128 | sctx->state[7] = SHA224_H7; | |
129 | sctx->count = 0; | |
c75c66bb | 130 | } |
13855fd8 EB |
131 | void sha224_update(struct sha256_state *sctx, const u8 *data, unsigned int len); |
132 | void sha224_final(struct sha256_state *sctx, u8 *out); | |
34d6245f | 133 | |
a24d22b2 | 134 | #endif /* _CRYPTO_SHA2_H */ |