1 /* 2 BLAKE2 reference source code package - reference C implementations 3 4 Copyright 2012, Samuel Neves <sneves@dei.uc.pt>. You may use this under the 5 terms of the CC0, the OpenSSL Licence, or the Apache Public License 2.0, at 6 your option. The terms of these licenses can be found at: 7 8 - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0 9 - OpenSSL license : https://www.openssl.org/source/license.html 10 - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0 11 12 More information about the BLAKE2 hash function can be found at 13 https://blake2.net. 14 */ 15 #pragma once 16 #ifndef __BLAKE2_H__ 17 #define __BLAKE2_H__ 18 19 #include <stddef.h> 20 21 #include "blake2-config.h" 22 23 #ifdef BLAKE2_NO_INLINE 24 #define BLAKE2_LOCAL_INLINE(type) static type 25 #endif 26 27 #ifndef BLAKE2_LOCAL_INLINE 28 #define BLAKE2_LOCAL_INLINE(type) static inline type 29 #endif 30 31 #if defined(__cplusplus) 32 extern "C" { 33 #endif 34 35 enum blake2s_constant 36 { 37 BLAKE2S_BLOCKBYTES = 64, 38 BLAKE2S_OUTBYTES = 32, 39 BLAKE2S_KEYBYTES = 32, 40 BLAKE2S_SALTBYTES = 8, 41 BLAKE2S_PERSONALBYTES = 8 42 }; 43 44 enum blake2b_constant 45 { 46 BLAKE2B_BLOCKBYTES = 128, 47 BLAKE2B_OUTBYTES = 64, 48 BLAKE2B_KEYBYTES = 64, 49 BLAKE2B_SALTBYTES = 16, 50 BLAKE2B_PERSONALBYTES = 16 51 }; 52 53 typedef struct __blake2s_state 54 { 55 uint32_t h[8]; 56 uint32_t t[2]; 57 uint32_t f[2]; 58 uint8_t buf[2 * BLAKE2S_BLOCKBYTES]; 59 size_t buflen; 60 uint8_t last_node; 61 } blake2s_state; 62 63 typedef struct __blake2b_state 64 { 65 uint64_t h[8]; 66 uint64_t t[2]; 67 uint64_t f[2]; 68 uint8_t buf[2 * BLAKE2B_BLOCKBYTES]; 69 size_t buflen; 70 uint8_t last_node; 71 } blake2b_state; 72 73 typedef struct __blake2sp_state 74 { 75 blake2s_state S[8][1]; 76 blake2s_state R[1]; 77 uint8_t buf[8 * BLAKE2S_BLOCKBYTES]; 78 size_t buflen; 79 } blake2sp_state; 80 81 typedef struct __blake2bp_state 82 { 83 blake2b_state S[4][1]; 84 blake2b_state R[1]; 85 uint8_t buf[4 * BLAKE2B_BLOCKBYTES]; 86 size_t buflen; 87 } blake2bp_state; 88 89 90 #pragma pack(push, 1) 91 typedef struct __blake2s_param 92 { 93 uint8_t digest_length; /* 1 */ 94 uint8_t key_length; /* 2 */ 95 uint8_t fanout; /* 3 */ 96 uint8_t depth; /* 4 */ 97 uint32_t leaf_length; /* 8 */ 98 uint8_t node_offset[6];// 14 99 uint8_t node_depth; /* 15 */ 100 uint8_t inner_length; /* 16 */ 101 /* uint8_t reserved[0]; */ 102 uint8_t salt[BLAKE2S_SALTBYTES]; /* 24 */ 103 uint8_t personal[BLAKE2S_PERSONALBYTES]; /* 32 */ 104 } blake2s_param; 105 106 typedef struct __blake2b_param 107 { 108 uint8_t digest_length; /* 1 */ 109 uint8_t key_length; /* 2 */ 110 uint8_t fanout; /* 3 */ 111 uint8_t depth; /* 4 */ 112 uint32_t leaf_length; /* 8 */ 113 uint64_t node_offset; /* 16 */ 114 uint8_t node_depth; /* 17 */ 115 uint8_t inner_length; /* 18 */ 116 uint8_t reserved[14]; /* 32 */ 117 uint8_t salt[BLAKE2B_SALTBYTES]; /* 48 */ 118 uint8_t personal[BLAKE2B_PERSONALBYTES]; /* 64 */ 119 } blake2b_param; 120 #pragma pack(pop) 121 122 /* Streaming API */ 123 int blake2s_init( blake2s_state *S, const uint8_t outlen ); 124 int blake2s_init_key( blake2s_state *S, const uint8_t outlen, const void *key, const uint8_t keylen ); 125 int blake2s_init_param( blake2s_state *S, const blake2s_param *P ); 126 int blake2s_update( blake2s_state *S, const uint8_t *in, uint64_t inlen ); 127 int blake2s_final( blake2s_state *S, uint8_t *out, uint8_t outlen ); 128 129 int blake2b_init( blake2b_state *S, const uint8_t outlen ); 130 int blake2b_init_key( blake2b_state *S, const uint8_t outlen, const void *key, const uint8_t keylen ); 131 int blake2b_init_param( blake2b_state *S, const blake2b_param *P ); 132 int blake2b_update( blake2b_state *S, const uint8_t *in, uint64_t inlen ); 133 int blake2b_final( blake2b_state *S, uint8_t *out, uint8_t outlen ); 134 135 int blake2sp_init( blake2sp_state *S, const uint8_t outlen ); 136 int blake2sp_init_key( blake2sp_state *S, const uint8_t outlen, const void *key, const uint8_t keylen ); 137 int blake2sp_update( blake2sp_state *S, const uint8_t *in, uint64_t inlen ); 138 int blake2sp_final( blake2sp_state *S, uint8_t *out, uint8_t outlen ); 139 140 int blake2bp_init( blake2bp_state *S, const uint8_t outlen ); 141 int blake2bp_init_key( blake2bp_state *S, const uint8_t outlen, const void *key, const uint8_t keylen ); 142 int blake2bp_update( blake2bp_state *S, const uint8_t *in, uint64_t inlen ); 143 int blake2bp_final( blake2bp_state *S, uint8_t *out, uint8_t outlen ); 144 145 /* Simple API */ 146 int blake2s( uint8_t *out, const void *in, const void *key, const uint8_t outlen, const uint64_t inlen, uint8_t keylen ); 147 int blake2b( uint8_t *out, const void *in, const void *key, const uint8_t outlen, const uint64_t inlen, uint8_t keylen ); 148 149 int blake2sp( uint8_t *out, const void *in, const void *key, const uint8_t outlen, const uint64_t inlen, uint8_t keylen ); 150 int blake2bp( uint8_t *out, const void *in, const void *key, const uint8_t outlen, const uint64_t inlen, uint8_t keylen ); 151 blake2(uint8_t * out,const void * in,const void * key,const uint8_t outlen,const uint64_t inlen,uint8_t keylen)152 static inline int blake2( uint8_t *out, const void *in, const void *key, const uint8_t outlen, const uint64_t inlen, uint8_t keylen ) 153 { 154 return blake2b( out, in, key, outlen, inlen, keylen ); 155 } 156 157 #if defined(__cplusplus) 158 } 159 #endif 160 161 #endif 162 163