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usr
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src
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linux-headers-6.8.0-36-generic
/
include
/
crypto
/ [
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sha2.h
/* SPDX-License-Identifier: GPL-2.0 */ /* * Common values for SHA-2 algorithms */ #ifndef _CRYPTO_SHA2_H #define _CRYPTO_SHA2_H #include <linux/types.h> #define SHA224_DIGEST_SIZE 28 #define SHA224_BLOCK_SIZE 64 #define SHA256_DIGEST_SIZE 32 #define SHA256_BLOCK_SIZE 64 #define SHA384_DIGEST_SIZE 48 #define SHA384_BLOCK_SIZE 128 #define SHA512_DIGEST_SIZE 64 #define SHA512_BLOCK_SIZE 128 #define SHA224_H0 0xc1059ed8UL #define SHA224_H1 0x367cd507UL #define SHA224_H2 0x3070dd17UL #define SHA224_H3 0xf70e5939UL #define SHA224_H4 0xffc00b31UL #define SHA224_H5 0x68581511UL #define SHA224_H6 0x64f98fa7UL #define SHA224_H7 0xbefa4fa4UL #define SHA256_H0 0x6a09e667UL #define SHA256_H1 0xbb67ae85UL #define SHA256_H2 0x3c6ef372UL #define SHA256_H3 0xa54ff53aUL #define SHA256_H4 0x510e527fUL #define SHA256_H5 0x9b05688cUL #define SHA256_H6 0x1f83d9abUL #define SHA256_H7 0x5be0cd19UL #define SHA384_H0 0xcbbb9d5dc1059ed8ULL #define SHA384_H1 0x629a292a367cd507ULL #define SHA384_H2 0x9159015a3070dd17ULL #define SHA384_H3 0x152fecd8f70e5939ULL #define SHA384_H4 0x67332667ffc00b31ULL #define SHA384_H5 0x8eb44a8768581511ULL #define SHA384_H6 0xdb0c2e0d64f98fa7ULL #define SHA384_H7 0x47b5481dbefa4fa4ULL #define SHA512_H0 0x6a09e667f3bcc908ULL #define SHA512_H1 0xbb67ae8584caa73bULL #define SHA512_H2 0x3c6ef372fe94f82bULL #define SHA512_H3 0xa54ff53a5f1d36f1ULL #define SHA512_H4 0x510e527fade682d1ULL #define SHA512_H5 0x9b05688c2b3e6c1fULL #define SHA512_H6 0x1f83d9abfb41bd6bULL #define SHA512_H7 0x5be0cd19137e2179ULL extern const u8 sha224_zero_message_hash[SHA224_DIGEST_SIZE]; extern const u8 sha256_zero_message_hash[SHA256_DIGEST_SIZE]; extern const u8 sha384_zero_message_hash[SHA384_DIGEST_SIZE]; extern const u8 sha512_zero_message_hash[SHA512_DIGEST_SIZE]; struct sha256_state { u32 state[SHA256_DIGEST_SIZE / 4]; u64 count; u8 buf[SHA256_BLOCK_SIZE]; }; struct sha512_state { u64 state[SHA512_DIGEST_SIZE / 8]; u64 count[2]; u8 buf[SHA512_BLOCK_SIZE]; }; struct shash_desc; extern int crypto_sha256_update(struct shash_desc *desc, const u8 *data, unsigned int len); extern int crypto_sha256_finup(struct shash_desc *desc, const u8 *data, unsigned int len, u8 *hash); extern int crypto_sha512_update(struct shash_desc *desc, const u8 *data, unsigned int len); extern int crypto_sha512_finup(struct shash_desc *desc, const u8 *data, unsigned int len, u8 *hash); /* * Stand-alone implementation of the SHA256 algorithm. It is designed to * have as little dependencies as possible so it can be used in the * kexec_file purgatory. In other cases you should generally use the * hash APIs from include/crypto/hash.h. Especially when hashing large * amounts of data as those APIs may be hw-accelerated. * * For details see lib/crypto/sha256.c */ static inline void sha256_init(struct sha256_state *sctx) { sctx->state[0] = SHA256_H0; sctx->state[1] = SHA256_H1; sctx->state[2] = SHA256_H2; sctx->state[3] = SHA256_H3; sctx->state[4] = SHA256_H4; sctx->state[5] = SHA256_H5; sctx->state[6] = SHA256_H6; sctx->state[7] = SHA256_H7; sctx->count = 0; } void sha256_update(struct sha256_state *sctx, const u8 *data, unsigned int len); void sha256_final(struct sha256_state *sctx, u8 *out); void sha256(const u8 *data, unsigned int len, u8 *out); static inline void sha224_init(struct sha256_state *sctx) { sctx->state[0] = SHA224_H0; sctx->state[1] = SHA224_H1; sctx->state[2] = SHA224_H2; sctx->state[3] = SHA224_H3; sctx->state[4] = SHA224_H4; sctx->state[5] = SHA224_H5; sctx->state[6] = SHA224_H6; sctx->state[7] = SHA224_H7; sctx->count = 0; } /* Simply use sha256_update as it is equivalent to sha224_update. */ void sha224_final(struct sha256_state *sctx, u8 *out); #endif /* _CRYPTO_SHA2_H */
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