release/src/router/libsodium/src/libsodium/crypto_generichash/blake2/ref/blake2.h

   1 /*
   2    BLAKE2 reference source code package - reference 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
  14 #ifndef __BLAKE2_H__
  15 #define __BLAKE2_H__
  16
  17 #include <stddef.h>
  18 #include <stdint.h>
  19
  20 #include "crypto_generichash_blake2b.h"
  21
  22 #define blake2b_init_param crypto_generichash_blake2b__init_param
  23 #define blake2b_init       crypto_generichash_blake2b__init
  24 #define blake2b_init_key   crypto_generichash_blake2b__init_key
  25 #define blake2b_update     crypto_generichash_blake2b__update
  26 #define blake2b_final      crypto_generichash_blake2b__final
  27 #define blake2b            crypto_generichash_blake2b__blake2b
  28
  29 #if defined(_MSC_VER)
  30 #define ALIGN(x) __declspec(align(x))
  31 #else
  32 #define ALIGN(x) __attribute__((aligned(x)))
  33 #endif
  34
  35 #if defined(__cplusplus)
  36 extern "C" {
  37 #endif
  38
  39   enum blake2s_constant
  40   {
  41     BLAKE2S_BLOCKBYTES = 64,
  42     BLAKE2S_OUTBYTES   = 32,
  43     BLAKE2S_KEYBYTES   = 32,
  44     BLAKE2S_SALTBYTES  = 8,
  45     BLAKE2S_PERSONALBYTES = 8
  46   };
  47
  48   enum blake2b_constant
  49   {
  50     BLAKE2B_BLOCKBYTES = 128,
  51     BLAKE2B_OUTBYTES   = 64,
  52     BLAKE2B_KEYBYTES   = 64,
  53     BLAKE2B_SALTBYTES  = 16,
  54     BLAKE2B_PERSONALBYTES = 16
  55   };
  56
  57 #pragma pack(push, 1)
  58   typedef struct __blake2s_param
  59   {
  60     uint8_t  digest_length; // 1
  61     uint8_t  key_length;    // 2
  62     uint8_t  fanout;        // 3
  63     uint8_t  depth;         // 4
  64     uint32_t leaf_length;   // 8
  65     uint8_t  node_offset[6];// 14
  66     uint8_t  node_depth;    // 15
  67     uint8_t  inner_length;  // 16
  68     // uint8_t  reserved[0];
  69     uint8_t  salt[BLAKE2S_SALTBYTES]; // 24
  70     uint8_t  personal[BLAKE2S_PERSONALBYTES];  // 32
  71   } blake2s_param;
  72
  73   ALIGN( 64 ) typedef struct __blake2s_state
  74   {
  75     uint32_t h[8];
  76     uint32_t t[2];
  77     uint32_t f[2];
  78     uint8_t  buf[2 * BLAKE2S_BLOCKBYTES];
  79     size_t   buflen;
  80     uint8_t  last_node;
  81   } blake2s_state ;
  82
  83   typedef struct __blake2b_param
  84   {
  85     uint8_t  digest_length; // 1
  86     uint8_t  key_length;    // 2
  87     uint8_t  fanout;        // 3
  88     uint8_t  depth;         // 4
  89     uint32_t leaf_length;   // 8
  90     uint64_t node_offset;   // 16
  91     uint8_t  node_depth;    // 17
  92     uint8_t  inner_length;  // 18
  93     uint8_t  reserved[14];  // 32
  94     uint8_t  salt[BLAKE2B_SALTBYTES]; // 48
  95     uint8_t  personal[BLAKE2B_PERSONALBYTES];  // 64
  96   } blake2b_param;
  97
  98 #ifndef DEFINE_BLAKE2B_STATE
  99 typedef crypto_generichash_blake2b_state blake2b_state;
 100 #else
 101   ALIGN( 64 ) typedef struct __blake2b_state
 102   {
 103     uint64_t h[8];
 104     uint64_t t[2];
 105     uint64_t f[2];
 106     uint8_t  buf[2 * BLAKE2B_BLOCKBYTES];
 107     size_t   buflen;
 108     uint8_t  last_node;
 109   } blake2b_state;
 110 #endif
 111
 112   typedef struct __blake2sp_state
 113   {
 114     blake2s_state S[8][1];
 115     blake2s_state R[1];
 116     uint8_t buf[8 * BLAKE2S_BLOCKBYTES];
 117     size_t  buflen;
 118   } blake2sp_state;
 119
 120   typedef struct __blake2bp_state
 121   {
 122     blake2b_state S[4][1];
 123     blake2b_state R[1];
 124     uint8_t buf[4 * BLAKE2B_BLOCKBYTES];
 125     size_t  buflen;
 126   } blake2bp_state;
 127 #pragma pack(pop)
 128
 129   // Streaming API
 130   int blake2s_init( blake2s_state *S, const uint8_t outlen );
 131   int blake2s_init_key( blake2s_state *S, const uint8_t outlen, const void *key, const uint8_t keylen );
 132   int blake2s_init_param( blake2s_state *S, const blake2s_param *P );
 133   int blake2s_update( blake2s_state *S, const uint8_t *in, uint64_t inlen );
 134   int blake2s_final( blake2s_state *S, uint8_t *out, uint8_t outlen );
 135
 136   int blake2b_init( blake2b_state *S, const uint8_t outlen );
 137   int blake2b_init_key( blake2b_state *S, const uint8_t outlen, const void *key, const uint8_t keylen );
 138   int blake2b_init_param( blake2b_state *S, const blake2b_param *P );
 139   int blake2b_update( blake2b_state *S, const uint8_t *in, uint64_t inlen );
 140   int blake2b_final( blake2b_state *S, uint8_t *out, uint8_t outlen );
 141
 142   int blake2sp_init( blake2sp_state *S, const uint8_t outlen );
 143   int blake2sp_init_key( blake2sp_state *S, const uint8_t outlen, const void *key, const uint8_t keylen );
 144   int blake2sp_update( blake2sp_state *S, const uint8_t *in, uint64_t inlen );
 145   int blake2sp_final( blake2sp_state *S, uint8_t *out, uint8_t outlen );
 146
 147   int blake2bp_init( blake2bp_state *S, const uint8_t outlen );
 148   int blake2bp_init_key( blake2bp_state *S, const uint8_t outlen, const void *key, const uint8_t keylen );
 149   int blake2bp_update( blake2bp_state *S, const uint8_t *in, uint64_t inlen );
 150   int blake2bp_final( blake2bp_state *S, uint8_t *out, uint8_t outlen );
 151
 152   // Simple API
 153   int blake2s( uint8_t *out, const void *in, const void *key, const uint8_t outlen, const uint64_t inlen, uint8_t keylen );
 154   int blake2b( uint8_t *out, const void *in, const void *key, const uint8_t outlen, const uint64_t inlen, uint8_t keylen );
 155
 156   int blake2sp( uint8_t *out, const void *in, const void *key, const uint8_t outlen, const uint64_t inlen, uint8_t keylen );
 157   int blake2bp( uint8_t *out, const void *in, const void *key, const uint8_t outlen, const uint64_t inlen, uint8_t keylen );
 158
 159   static inline int blake2( uint8_t *out, const void *in, const void *key, const uint8_t outlen, const uint64_t inlen, uint8_t keylen )
 160   {
 161     return blake2b( out, in, key, outlen, inlen, keylen );
 162   }
 163
 164 #if defined(__cplusplus)
 165 }
 166 #endif
 167
 168 #endif
 169