78 lines
2.4 KiB
C
78 lines
2.4 KiB
C
/*
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BLAKE2 reference source code package - reference C implementations
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Copyright 2012, Samuel Neves <sneves@dei.uc.pt>. You may use this under the
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terms of the CC0, the OpenSSL Licence, or the Apache Public License 2.0, at
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your option. The terms of these licenses can be found at:
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- CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
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- OpenSSL license : https://www.openssl.org/source/license.html
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- Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
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More information about the BLAKE2 hash function can be found at
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https://blake2.net.
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*/
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#ifndef PPR_BLAKE2S_H
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#define PPR_BLAKE2S_H
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#include <ppr_machdep.h>
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enum ppr_blake2s_constant {
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BLAKE2S_BLOCKBYTES = 64,
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BLAKE2S_OUTBYTES = 32,
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BLAKE2S_KEYBYTES = 32,
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BLAKE2S_SALTBYTES = 8,
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BLAKE2S_PERSONALBYTES = 8
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};
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typedef struct ppr_blake2s_state__ {
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ppr_uint32_t h[8];
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ppr_uint32_t t[2];
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ppr_uint32_t f[2];
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ppr_uint8_t buf[BLAKE2S_BLOCKBYTES];
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ppr_size_t buflen;
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ppr_size_t outlen;
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ppr_uint8_t last_node;
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} ppr_blake2s_state;
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#ifdef PPR_HAS_PACK
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#pragma pack(1)
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#endif
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struct ppr_blake2s_param__ {
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ppr_uint8_t digest_length; /* 1 */
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ppr_uint8_t key_length; /* 2 */
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ppr_uint8_t fanout; /* 3 */
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ppr_uint8_t depth; /* 4 */
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ppr_uint32_t leaf_length; /* 8 */
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ppr_uint32_t node_offset; /* 12 */
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ppr_uint16_t xof_length; /* 14 */
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ppr_uint8_t node_depth; /* 15 */
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ppr_uint8_t inner_length; /* 16 */
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/* ppr_uint8_t reserved[0]; */
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ppr_uint8_t salt[BLAKE2S_SALTBYTES]; /* 24 */
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ppr_uint8_t personal[BLAKE2S_PERSONALBYTES]; /* 32 */
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};
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#ifdef PPR_HAS_PACK
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#pragma pack()
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#endif
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typedef struct ppr_blake2s_param__ ppr_blake2s_param;
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#if 0
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/* Padded structs result in a compile-time error */
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enum {
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BLAKE2_DUMMY_1 = 1/(int)(sizeof(ppr_blake2s_param) == BLAKE2S_OUTBYTES)
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};
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#endif
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/* Streaming API */
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int ppr_blake2s_init(ppr_blake2s_state* S, ppr_size_t outlen);
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int ppr_blake2s_init_key(ppr_blake2s_state* S, ppr_size_t outlen, const void* key, ppr_size_t keylen);
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int ppr_blake2s_init_param(ppr_blake2s_state* S, const ppr_blake2s_param* P);
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int ppr_blake2s_update(ppr_blake2s_state* S, const void* in, ppr_size_t inlen);
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int ppr_blake2s_final(ppr_blake2s_state* S, void* out, ppr_size_t outlen);
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/* Simple API */
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int ppr_blake2s(void* out, ppr_size_t outlen, const void* in, ppr_size_t inlen, const void* key, ppr_size_t keylen);
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#endif
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