1 /* 2 BLAKE2 reference source code package - optimized C implementations 3 4 Written in 2012 by Samuel Neves <sneves@dei.uc.pt> 5 6 To the extent possible under law, the author(s) have dedicated all copyright 7 and related and neighboring rights to this software to the public domain 8 worldwide. This software is distributed without any warranty. 9 10 You should have received a copy of the CC0 Public Domain Dedication along with 11 this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>. 12 */ 13 #pragma once 14 #ifndef __BLAKE2_H__ 15 #define __BLAKE2_H__ 16 17 #include <stddef.h> 18 #include <stdint.h> 19 20 #if defined(_WIN32) || defined(__CYGWIN__) 21 #define BLAKE2_DLL_IMPORT __declspec(dllimport) 22 #define BLAKE2_DLL_EXPORT __declspec(dllexport) 23 #define BLAKE2_DLL_PRIVATE 24 #elif __GNUC__ >= 4 25 #define BLAKE2_DLL_IMPORT __attribute__ ((visibility ("default"))) 26 #define BLAKE2_DLL_EXPORT __attribute__ ((visibility ("default"))) 27 #define BLAKE2_DLL_PRIVATE __attribute__ ((visibility ("hidden"))) 28 #else 29 #define BLAKE2_DLL_IMPORT 30 #define BLAKE2_DLL_EXPORT 31 #define BLAKE2_DLL_PRIVATE 32 #endif 33 34 #if defined(BLAKE2_DLL) 35 #if defined(BLAKE2_DLL_EXPORTS) // defined if we are building the DLL 36 #define BLAKE2_API BLAKE2_DLL_EXPORT 37 #else 38 #define BLAKE2_API BLAKE2_DLL_IMPORT 39 #endif 40 #define BLAKE2_PRIVATE BLAKE2_DLL_PRIVATE // must only be used by hidden logic 41 #else 42 #define BLAKE2_API 43 #define BLAKE2_PRIVATE 44 #endif 45 46 #if defined(__cplusplus) 47 extern "C" { 48 #elif defined(_MSC_VER) && !defined(inline) 49 #define inline __inline 50 #endif 51 52 enum blake2s_constant 53 { 54 BLAKE2S_BLOCKBYTES = 64, 55 BLAKE2S_OUTBYTES = 32, 56 BLAKE2S_KEYBYTES = 32, 57 BLAKE2S_SALTBYTES = 8, 58 BLAKE2S_PERSONALBYTES = 8 59 }; 60 61 enum blake2b_constant 62 { 63 BLAKE2B_BLOCKBYTES = 128, 64 BLAKE2B_OUTBYTES = 64, 65 BLAKE2B_KEYBYTES = 64, 66 BLAKE2B_SALTBYTES = 16, 67 BLAKE2B_PERSONALBYTES = 16 68 }; 69 70 #pragma pack(push, 1) 71 typedef struct __blake2s_param 72 { 73 uint8_t digest_length; // 1 74 uint8_t key_length; // 2 75 uint8_t fanout; // 3 76 uint8_t depth; // 4 77 uint32_t leaf_length; // 8 78 uint8_t node_offset[6];// 14 79 uint8_t node_depth; // 15 80 uint8_t inner_length; // 16 81 // uint8_t reserved[0]; 82 uint8_t salt[BLAKE2S_SALTBYTES]; // 24 83 uint8_t personal[BLAKE2S_PERSONALBYTES]; // 32 84 } blake2s_param; 85 86 typedef struct __blake2s_state 87 { 88 uint32_t h[8]; 89 uint32_t t[2]; 90 uint32_t f[2]; 91 uint8_t buf[2 * BLAKE2S_BLOCKBYTES]; 92 uint32_t buflen; 93 uint8_t outlen; 94 uint8_t last_node; 95 } blake2s_state; 96 97 typedef struct __blake2b_param 98 { 99 uint8_t digest_length; // 1 100 uint8_t key_length; // 2 101 uint8_t fanout; // 3 102 uint8_t depth; // 4 103 uint32_t leaf_length; // 8 104 uint64_t node_offset; // 16 105 uint8_t node_depth; // 17 106 uint8_t inner_length; // 18 107 uint8_t reserved[14]; // 32 108 uint8_t salt[BLAKE2B_SALTBYTES]; // 48 109 uint8_t personal[BLAKE2B_PERSONALBYTES]; // 64 110 } blake2b_param; 111 112 typedef struct __blake2b_state 113 { 114 uint64_t h[8]; 115 uint64_t t[2]; 116 uint64_t f[2]; 117 uint8_t buf[2 * BLAKE2B_BLOCKBYTES]; 118 uint32_t buflen; 119 uint8_t outlen; 120 uint8_t last_node; 121 } blake2b_state; 122 123 typedef struct __blake2sp_state 124 { 125 blake2s_state S[8][1]; 126 blake2s_state R[1]; 127 uint8_t buf[8 * BLAKE2S_BLOCKBYTES]; 128 uint32_t buflen; 129 uint8_t outlen; 130 } blake2sp_state; 131 132 typedef struct __blake2bp_state 133 { 134 blake2b_state S[4][1]; 135 blake2b_state R[1]; 136 uint8_t buf[4 * BLAKE2B_BLOCKBYTES]; 137 uint32_t buflen; 138 uint8_t outlen; 139 } blake2bp_state; 140 #pragma pack(pop) 141 142 // Streaming API 143 BLAKE2_API int blake2s_init( blake2s_state *S, size_t outlen ); 144 BLAKE2_API int blake2s_init_key( blake2s_state *S, size_t outlen, const void *key, size_t keylen ); 145 BLAKE2_API int blake2s_init_param( blake2s_state *S, const blake2s_param *P ); 146 BLAKE2_API int blake2s_update( blake2s_state *S, const uint8_t *in, size_t inlen ); 147 BLAKE2_API int blake2s_final( blake2s_state *S, uint8_t *out, size_t outlen ); 148 149 BLAKE2_API int blake2b_init( blake2b_state *S, size_t outlen ); 150 BLAKE2_API int blake2b_init_key( blake2b_state *S, size_t outlen, const void *key, size_t keylen ); 151 BLAKE2_API int blake2b_init_param( blake2b_state *S, const blake2b_param *P ); 152 BLAKE2_API int blake2b_update( blake2b_state *S, const uint8_t *in, size_t inlen ); 153 BLAKE2_API int blake2b_final( blake2b_state *S, uint8_t *out, size_t outlen ); 154 155 BLAKE2_API int blake2sp_init( blake2sp_state *S, size_t outlen ); 156 BLAKE2_API int blake2sp_init_key( blake2sp_state *S, size_t outlen, const void *key, size_t keylen ); 157 BLAKE2_API int blake2sp_update( blake2sp_state *S, const uint8_t *in, size_t inlen ); 158 BLAKE2_API int blake2sp_final( blake2sp_state *S, uint8_t *out, size_t outlen ); 159 160 BLAKE2_API int blake2bp_init( blake2bp_state *S, size_t outlen ); 161 BLAKE2_API int blake2bp_init_key( blake2bp_state *S, size_t outlen, const void *key, size_t keylen ); 162 BLAKE2_API int blake2bp_update( blake2bp_state *S, const uint8_t *in, size_t inlen ); 163 BLAKE2_API int blake2bp_final( blake2bp_state *S, uint8_t *out, size_t outlen ); 164 165 // Simple API 166 BLAKE2_API int blake2s( uint8_t *out, const void *in, const void *key, size_t outlen, size_t inlen, size_t keylen ); 167 BLAKE2_API int blake2b( uint8_t *out, const void *in, const void *key, size_t outlen, size_t inlen, size_t keylen ); 168 169 BLAKE2_API int blake2sp( uint8_t *out, const void *in, const void *key, size_t outlen, size_t inlen, size_t keylen ); 170 BLAKE2_API int blake2bp( uint8_t *out, const void *in, const void *key, size_t outlen, size_t inlen, size_t keylen ); 171 172 static inline int blake2( uint8_t *out, const void *in, const void *key, size_t outlen, size_t inlen, size_t keylen ) 173 { 174 return blake2b( out, in, key, outlen, inlen, keylen ); 175 } 176 177 #if defined(__cplusplus) 178 } 179 #endif 180 181 #endif 182 183