// Copyright (c) 2014-2018 Zano Project // Copyright (c) 2014-2018 The Louisdor Project // Copyright (c) 2012-2013 The Boolberry developers // Copyright (c) 2017-2025 Lethean (https://lt.hn) // // Licensed under the European Union Public Licence (EUPL) version 1.2. // You may obtain a copy of the licence at: // // https://joinup.ec.europa.eu/software/page/eupl/licence-eupl // // The EUPL is a copyleft licence that is compatible with the MIT/X11 // licence used by the original projects; the MIT terms are therefore // considered “grandfathered” under the EUPL for this code. // // SPDX‑License‑Identifier: EUPL-1.2 // #ifndef BLAKE2_H #define BLAKE2_H #include #include #if defined(_MSC_VER) #define BLAKE2_PACKED(x) __pragma(pack(push, 1)) x __pragma(pack(pop)) #else #define BLAKE2_PACKED(x) x __attribute__((packed)) #endif #if defined(__cplusplus) extern "C" { #endif 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 }; typedef struct blake2s_state__ { uint32_t h[8]; uint32_t t[2]; uint32_t f[2]; uint8_t buf[BLAKE2S_BLOCKBYTES]; size_t buflen; size_t outlen; uint8_t last_node; } blake2s_state; typedef struct blake2b_state__ { uint64_t h[8]; uint64_t t[2]; uint64_t f[2]; uint8_t buf[BLAKE2B_BLOCKBYTES]; size_t buflen; size_t outlen; uint8_t last_node; } blake2b_state; typedef struct blake2sp_state__ { blake2s_state S[8][1]; blake2s_state R[1]; uint8_t buf[8 * BLAKE2S_BLOCKBYTES]; size_t buflen; size_t outlen; } blake2sp_state; typedef struct blake2bp_state__ { blake2b_state S[4][1]; blake2b_state R[1]; uint8_t buf[4 * BLAKE2B_BLOCKBYTES]; size_t buflen; size_t outlen; } blake2bp_state; BLAKE2_PACKED(struct blake2s_param__ { uint8_t digest_length; /* 1 */ uint8_t key_length; /* 2 */ uint8_t fanout; /* 3 */ uint8_t depth; /* 4 */ uint32_t leaf_length; /* 8 */ uint32_t node_offset; /* 12 */ uint16_t xof_length; /* 14 */ uint8_t node_depth; /* 15 */ uint8_t inner_length; /* 16 */ /* uint8_t reserved[0]; */ uint8_t salt[BLAKE2S_SALTBYTES]; /* 24 */ uint8_t personal[BLAKE2S_PERSONALBYTES]; /* 32 */ }); typedef struct blake2s_param__ blake2s_param; BLAKE2_PACKED(struct blake2b_param__ { uint8_t digest_length; /* 1 */ uint8_t key_length; /* 2 */ uint8_t fanout; /* 3 */ uint8_t depth; /* 4 */ uint32_t leaf_length; /* 8 */ uint32_t node_offset; /* 12 */ uint32_t xof_length; /* 16 */ uint8_t node_depth; /* 17 */ uint8_t inner_length; /* 18 */ uint8_t reserved[14]; /* 32 */ uint8_t salt[BLAKE2B_SALTBYTES]; /* 48 */ uint8_t personal[BLAKE2B_PERSONALBYTES]; /* 64 */ }); typedef struct blake2b_param__ blake2b_param; typedef struct blake2xs_state__ { blake2s_state S[1]; blake2s_param P[1]; } blake2xs_state; typedef struct blake2xb_state__ { blake2b_state S[1]; blake2b_param P[1]; } blake2xb_state; /* Padded structs result in a compile-time error */ enum { BLAKE2_DUMMY_1 = 1/(sizeof(blake2s_param) == BLAKE2S_OUTBYTES), BLAKE2_DUMMY_2 = 1/(sizeof(blake2b_param) == BLAKE2B_OUTBYTES) }; // static_assert(sizeof(blake2s_param) == BLAKE2S_OUTBYTES, "Wrong size of blake2s_param"); // static_assert(sizeof(blake2b_param) == BLAKE2B_OUTBYTES, "Wrong size of blake2b_param"); /* Streaming API */ int blake2s_init( blake2s_state *S, size_t outlen ); int blake2s_init_key( blake2s_state *S, size_t outlen, const void *key, size_t keylen ); int blake2s_init_param( blake2s_state *S, const blake2s_param *P ); int blake2s_update( blake2s_state *S, const void *in, size_t inlen ); int blake2s_final( blake2s_state *S, void *out, size_t outlen ); int blake2b_init( blake2b_state *S, size_t outlen ); int blake2b_init_key( blake2b_state *S, size_t outlen, const void *key, size_t keylen ); int blake2b_init_param( blake2b_state *S, const blake2b_param *P ); int blake2b_update( blake2b_state *S, const void *in, size_t inlen ); int blake2b_final( blake2b_state *S, void *out, size_t outlen ); int blake2sp_init( blake2sp_state *S, size_t outlen ); int blake2sp_init_key( blake2sp_state *S, size_t outlen, const void *key, size_t keylen ); int blake2sp_update( blake2sp_state *S, const void *in, size_t inlen ); int blake2sp_final( blake2sp_state *S, void *out, size_t outlen ); int blake2bp_init( blake2bp_state *S, size_t outlen ); int blake2bp_init_key( blake2bp_state *S, size_t outlen, const void *key, size_t keylen ); int blake2bp_update( blake2bp_state *S, const void *in, size_t inlen ); int blake2bp_final( blake2bp_state *S, void *out, size_t outlen ); /* Variable output length API */ int blake2xs_init( blake2xs_state *S, const size_t outlen ); int blake2xs_init_key( blake2xs_state *S, const size_t outlen, const void *key, size_t keylen ); int blake2xs_update( blake2xs_state *S, const void *in, size_t inlen ); int blake2xs_final(blake2xs_state *S, void *out, size_t outlen); int blake2xb_init( blake2xb_state *S, const size_t outlen ); int blake2xb_init_key( blake2xb_state *S, const size_t outlen, const void *key, size_t keylen ); int blake2xb_update( blake2xb_state *S, const void *in, size_t inlen ); int blake2xb_final(blake2xb_state *S, void *out, size_t outlen); /* Simple API */ int blake2s( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen ); int blake2b( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen ); int blake2sp( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen ); int blake2bp( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen ); int blake2xs( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen ); int blake2xb( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen ); /* This is simply an alias for blake2b */ int blake2( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen ); #if defined(__cplusplus) } #endif #endif