/* * BIRD Library -- BLAKE2 Hash Functions * * Based on the code from BLAKE2 reference source code package * * Copyright 2012, Samuel Neves <sneves@dei.uc.pt> * * You may use this under the terms of the CC0, the OpenSSL Licence, or the * Apache Public License 2.0, at your option. The terms of these licenses * can be found at: * * - CC0 1.0 Universal : https://creativecommons.org/publicdomain/zero/1.0 * - OpenSSL license : https://www.openssl.org/source/license.html * - Apache 2.0 : https://www.apache.org/licenses/LICENSE-2.0 * * More information about the BLAKE2 hash function can be found at * https://blake2.net/ web. */ #ifndef _BIRD_BLAKE2_H_ #define _BIRD_BLAKE2_H_ #include "nest/bird.h" enum blake2s_constant { BLAKE2S_BLOCKBYTES = 64, BLAKE2S_OUTBYTES = 32, BLAKE2S_KEYBYTES = 32, BLAKE2S_SALTBYTES = 8, BLAKE2S_PERSONALBYTES = 8, }; enum blake2b_constant { BLAKE2B_BLOCKBYTES = 128, BLAKE2B_OUTBYTES = 64, BLAKE2B_KEYBYTES = 64, BLAKE2B_SALTBYTES = 16, BLAKE2B_PERSONALBYTES = 16, }; #define BLAKE2S_SIZE 32 // BLAKE2S_OUTBYTES #define BLAKE2S_BLOCK_SIZE 64 // BLAKE2S_BLOCKBYTES #define BLAKE2S_256_SIZE 32 #define BLAKE2B_SIZE 64 // BLAKE2B_OUTBYTES #define BLAKE2B_BLOCK_SIZE 128 // BLAKE2B_BLOCKBYTES #define BLAKE2B_512_SIZE 64 struct blake2s_state { u32 h[8]; u32 t[2]; u32 f[2]; byte buf[BLAKE2S_BLOCK_SIZE]; uint buflen; uint outlen; u8 last_node; }; struct blake2b_state { u64 h[8]; u64 t[2]; u64 f[2]; byte buf[BLAKE2B_BLOCK_SIZE]; uint buflen; uint outlen; u8 last_node; }; struct blake2s_param { u8 digest_length; /* 1 */ u8 key_length; /* 2 */ u8 fanout; /* 3 */ u8 depth; /* 4 */ u32 leaf_length; /* 8 */ u32 node_offset; /* 12 */ u16 xof_length; /* 14 */ u8 node_depth; /* 15 */ u8 inner_length; /* 16 */ /* byte reserved[0]; */ byte salt[BLAKE2S_SALTBYTES]; /* 24 */ byte personal[BLAKE2S_PERSONALBYTES]; /* 32 */ } PACKED; struct blake2b_param { u8 digest_length; /* 1 */ u8 key_length; /* 2 */ u8 fanout; /* 3 */ u8 depth; /* 4 */ u32 leaf_length; /* 8 */ u32 node_offset; /* 12 */ u32 xof_length; /* 16 */ u8 node_depth; /* 17 */ u8 inner_length; /* 18 */ byte reserved[14]; /* 32 */ byte salt[BLAKE2B_SALTBYTES]; /* 48 */ byte personal[BLAKE2B_PERSONALBYTES]; /* 64 */ } PACKED; /* Streaming API */ int blake2s_init(struct blake2s_state *s, size_t outlen); int blake2s_init_key(struct blake2s_state *s, size_t outlen, const void *key, size_t keylen); int blake2s_init_param(struct blake2s_state *s, const struct blake2s_param *p); int blake2s_update(struct blake2s_state *s, const void *in, size_t inlen); int blake2s_final(struct blake2s_state *s, void *out, size_t outlen); int blake2b_init(struct blake2b_state *s, size_t outlen); int blake2b_init_key(struct blake2b_state *s, size_t outlen, const void *key, size_t keylen); int blake2b_init_param(struct blake2b_state *s, const struct blake2b_param *p); int blake2b_update(struct blake2b_state *s, const void *in, size_t inlen); int blake2b_final(struct blake2b_state *s, void *out, size_t outlen); /* Wrapper functions for MAC class */ struct mac_desc; struct mac_context; struct blake2s_context { const struct mac_desc *type; struct blake2s_state state; byte buf[BLAKE2S_SIZE]; }; struct blake2b_context { const struct mac_desc *type; struct blake2b_state state; byte buf[BLAKE2B_SIZE]; }; void blake2s_mac_init(struct mac_context *ctx, const byte *key, uint keylen); void blake2s_mac_update(struct mac_context *ctx, const byte *data, uint datalen); byte *blake2s_mac_final(struct mac_context *ctx); void blake2b_mac_init(struct mac_context *ctx, const byte *key, uint keylen); void blake2b_mac_update(struct mac_context *ctx, const byte *data, uint datalen); byte *blake2b_mac_final(struct mac_context *ctx); #endif /* _BIRD_BLAKE2_H_ */