crypto/include/internal/blake2_locl.h

   1 /*
   2  * Copyright 2012, Samuel Neves <sneves@dei.uc.pt>.
   3  * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
   4  *
   5  * Licensed under the OpenSSL licenses, (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  * https://www.openssl.org/source/license.html
   9  * or in the file LICENSE in the source distribution.
  10  */
  11
  12 /*
  13  * Derived from the BLAKE2 reference implementation written by Samuel Neves.
  14  * More information about the BLAKE2 hash function and its implementations
  15  * can be found at https://blake2.net.
  16  */
  17
  18 #include <stddef.h>
  19 #include "e_os.h"
  20
  21 # ifdef OPENSSL_NO_BLAKE2
  22 #  error BLAKE2 is disabled.
  23 # endif
  24
  25 #define BLAKE2S_BLOCKBYTES    64
  26 #define BLAKE2S_OUTBYTES      32
  27 #define BLAKE2S_KEYBYTES      32
  28 #define BLAKE2S_SALTBYTES     8
  29 #define BLAKE2S_PERSONALBYTES 8
  30
  31 #define BLAKE2B_BLOCKBYTES    128
  32 #define BLAKE2B_OUTBYTES      64
  33 #define BLAKE2B_KEYBYTES      64
  34 #define BLAKE2B_SALTBYTES     16
  35 #define BLAKE2B_PERSONALBYTES 16
  36
  37 struct blake2s_param_st {
  38     uint8_t  digest_length; /* 1 */
  39     uint8_t  key_length;    /* 2 */
  40     uint8_t  fanout;        /* 3 */
  41     uint8_t  depth;         /* 4 */
  42     uint8_t  leaf_length[4];/* 8 */
  43     uint8_t  node_offset[6];/* 14 */
  44     uint8_t  node_depth;    /* 15 */
  45     uint8_t  inner_length;  /* 16 */
  46     uint8_t  salt[BLAKE2S_SALTBYTES]; /* 24 */
  47     uint8_t  personal[BLAKE2S_PERSONALBYTES];  /* 32 */
  48 };
  49
  50 typedef struct blake2s_param_st BLAKE2S_PARAM;
  51
  52 struct blake2s_ctx_st {
  53     uint32_t h[8];
  54     uint32_t t[2];
  55     uint32_t f[2];
  56     uint8_t  buf[BLAKE2S_BLOCKBYTES];
  57     size_t   buflen;
  58 };
  59
  60 struct blake2b_param_st {
  61     uint8_t  digest_length; /* 1 */
  62     uint8_t  key_length;    /* 2 */
  63     uint8_t  fanout;        /* 3 */
  64     uint8_t  depth;         /* 4 */
  65     uint8_t  leaf_length[4];/* 8 */
  66     uint8_t  node_offset[8];/* 16 */
  67     uint8_t  node_depth;    /* 17 */
  68     uint8_t  inner_length;  /* 18 */
  69     uint8_t  reserved[14];  /* 32 */
  70     uint8_t  salt[BLAKE2B_SALTBYTES]; /* 48 */
  71     uint8_t  personal[BLAKE2B_PERSONALBYTES];  /* 64 */
  72 };
  73
  74 typedef struct blake2b_param_st BLAKE2B_PARAM;
  75
  76 struct blake2b_ctx_st {
  77     uint64_t h[8];
  78     uint64_t t[2];
  79     uint64_t f[2];
  80     uint8_t  buf[BLAKE2B_BLOCKBYTES];
  81     size_t   buflen;
  82 };
  83
  84 #define BLAKE2B_DIGEST_LENGTH 64
  85 #define BLAKE2S_DIGEST_LENGTH 32
  86
  87 typedef struct blake2s_ctx_st BLAKE2S_CTX;
  88 typedef struct blake2b_ctx_st BLAKE2B_CTX;
  89
  90 int BLAKE2b_Init(BLAKE2B_CTX *c);
  91 int BLAKE2b_Update(BLAKE2B_CTX *c, const void *data, size_t datalen);
  92 int BLAKE2b_Final(unsigned char *md, BLAKE2B_CTX *c);
  93
  94 int BLAKE2s_Init(BLAKE2S_CTX *c);
  95 int BLAKE2s_Update(BLAKE2S_CTX *c, const void *data, size_t datalen);
  96 int BLAKE2s_Final(unsigned char *md, BLAKE2S_CTX *c);