diff options
Diffstat (limited to 'external/nettle-3.3/nettle/sha2.h')
| -rw-r--r-- | external/nettle-3.3/nettle/sha2.h | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/external/nettle-3.3/nettle/sha2.h b/external/nettle-3.3/nettle/sha2.h new file mode 100644 index 0000000..d0426d7 --- /dev/null +++ b/external/nettle-3.3/nettle/sha2.h @@ -0,0 +1,206 @@ +/* sha2.h + + The sha2 family of hash functions. + + Copyright (C) 2001, 2012 Niels Möller + + This file is part of GNU Nettle. + + GNU Nettle is free software: you can redistribute it and/or + modify it under the terms of either: + + * the GNU Lesser General Public License as published by the Free + Software Foundation; either version 3 of the License, or (at your + option) any later version. + + or + + * the GNU General Public License as published by the Free + Software Foundation; either version 3 of the License, or (at your + option) any later version. + + or both in parallel, as here. + + GNU Nettle is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received copies of the GNU General Public License and + the GNU Lesser General Public License along with this program. If + not, see http://www.gnu.org/licenses/. +*/ + +#ifndef NETTLE_SHA2_H_INCLUDED +#define NETTLE_SHA2_H_INCLUDED + +#include "nettle-types.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* Name mangling */ +#define sha224_init nettle_sha224_init +#define sha224_digest nettle_sha224_digest +#define sha256_init nettle_sha256_init +#define sha256_update nettle_sha256_update +#define sha256_digest nettle_sha256_digest +#define sha384_init nettle_sha384_init +#define sha384_digest nettle_sha384_digest +#define sha512_init nettle_sha512_init +#define sha512_update nettle_sha512_update +#define sha512_digest nettle_sha512_digest +#define sha512_224_init nettle_sha512_224_init +#define sha512_224_digest nettle_sha512_224_digest +#define sha512_256_init nettle_sha512_256_init +#define sha512_256_digest nettle_sha512_256_digest + +/* For backwards compatibility */ +#define SHA224_DATA_SIZE SHA256_BLOCK_SIZE +#define SHA256_DATA_SIZE SHA256_BLOCK_SIZE +#define SHA512_DATA_SIZE SHA512_BLOCK_SIZE +#define SHA384_DATA_SIZE SHA512_BLOCK_SIZE + +/* SHA256 */ + +#define SHA256_DIGEST_SIZE 32 +#define SHA256_BLOCK_SIZE 64 + +/* Digest is kept internally as 8 32-bit words. */ +#define _SHA256_DIGEST_LENGTH 8 + +struct sha256_ctx +{ + uint32_t state[_SHA256_DIGEST_LENGTH]; /* State variables */ + uint64_t count; /* 64-bit block count */ + uint8_t block[SHA256_BLOCK_SIZE]; /* SHA256 data buffer */ + unsigned int index; /* index into buffer */ +}; + +void +sha256_init(struct sha256_ctx *ctx); + +void +sha256_update(struct sha256_ctx *ctx, + size_t length, + const uint8_t *data); + +void +sha256_digest(struct sha256_ctx *ctx, + size_t length, + uint8_t *digest); + +/* Internal compression function. STATE points to 8 uint32_t words, + DATA points to 64 bytes of input data, possibly unaligned, and K + points to the table of constants. */ +void +_nettle_sha256_compress(uint32_t *state, const uint8_t *data, const uint32_t *k); + + +/* SHA224, a truncated SHA256 with different initial state. */ + +#define SHA224_DIGEST_SIZE 28 +#define SHA224_BLOCK_SIZE SHA256_BLOCK_SIZE +#define sha224_ctx sha256_ctx + +void +sha224_init(struct sha256_ctx *ctx); + +#define sha224_update nettle_sha256_update + +void +sha224_digest(struct sha256_ctx *ctx, + size_t length, + uint8_t *digest); + + +/* SHA512 */ + +#define SHA512_DIGEST_SIZE 64 +#define SHA512_BLOCK_SIZE 128 + +/* Digest is kept internally as 8 64-bit words. */ +#define _SHA512_DIGEST_LENGTH 8 + +struct sha512_ctx +{ + uint64_t state[_SHA512_DIGEST_LENGTH]; /* State variables */ + uint64_t count_low, count_high; /* 128-bit block count */ + uint8_t block[SHA512_BLOCK_SIZE]; /* SHA512 data buffer */ + unsigned int index; /* index into buffer */ +}; + +void +sha512_init(struct sha512_ctx *ctx); + +void +sha512_update(struct sha512_ctx *ctx, + size_t length, + const uint8_t *data); + +void +sha512_digest(struct sha512_ctx *ctx, + size_t length, + uint8_t *digest); + +/* Internal compression function. STATE points to 8 uint64_t words, + DATA points to 128 bytes of input data, possibly unaligned, and K + points to the table of constants. */ +void +_nettle_sha512_compress(uint64_t *state, const uint8_t *data, const uint64_t *k); + + +/* SHA384, a truncated SHA512 with different initial state. */ + +#define SHA384_DIGEST_SIZE 48 +#define SHA384_BLOCK_SIZE SHA512_BLOCK_SIZE +#define sha384_ctx sha512_ctx + +void +sha384_init(struct sha512_ctx *ctx); + +#define sha384_update nettle_sha512_update + +void +sha384_digest(struct sha512_ctx *ctx, + size_t length, + uint8_t *digest); + + +/* SHA512_224 and SHA512_256, two truncated versions of SHA512 + with different initial states. */ + +#define SHA512_224_DIGEST_SIZE 28 +#define SHA512_224_BLOCK_SIZE SHA512_BLOCK_SIZE +#define sha512_224_ctx sha512_ctx + +void +sha512_224_init(struct sha512_224_ctx *ctx); + +#define sha512_224_update nettle_sha512_update + +void +sha512_224_digest(struct sha512_224_ctx *ctx, + size_t length, + uint8_t *digest); + +#define SHA512_256_DIGEST_SIZE 32 +#define SHA512_256_BLOCK_SIZE SHA512_BLOCK_SIZE +#define sha512_256_ctx sha512_ctx + +void +sha512_256_init(struct sha512_256_ctx *ctx); + +#define sha512_256_update nettle_sha512_update + +void +sha512_256_digest(struct sha512_256_ctx *ctx, + size_t length, + uint8_t *digest); + +#ifdef __cplusplus +} +#endif + +#endif /* NETTLE_SHA2_H_INCLUDED */ |