| 1 | /*
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| 2 | * Copyright 2016-2017 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | /*
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| 11 | * Derived from the BLAKE2 reference implementation written by Samuel Neves.
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| 12 | * Copyright 2012, Samuel Neves <[email protected]>
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| 13 | * More information about the BLAKE2 hash function and its implementations
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| 14 | * can be found at https://blake2.net.
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| 15 | */
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| 16 |
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| 17 | #include <stddef.h>
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| 18 |
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| 19 | #define BLAKE2S_BLOCKBYTES 64
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| 20 | #define BLAKE2S_OUTBYTES 32
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| 21 | #define BLAKE2S_KEYBYTES 32
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| 22 | #define BLAKE2S_SALTBYTES 8
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| 23 | #define BLAKE2S_PERSONALBYTES 8
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| 24 |
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| 25 | #define BLAKE2B_BLOCKBYTES 128
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| 26 | #define BLAKE2B_OUTBYTES 64
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| 27 | #define BLAKE2B_KEYBYTES 64
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| 28 | #define BLAKE2B_SALTBYTES 16
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| 29 | #define BLAKE2B_PERSONALBYTES 16
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| 30 |
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| 31 | struct blake2s_param_st {
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| 32 | uint8_t digest_length; /* 1 */
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| 33 | uint8_t key_length; /* 2 */
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| 34 | uint8_t fanout; /* 3 */
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| 35 | uint8_t depth; /* 4 */
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| 36 | uint8_t leaf_length[4];/* 8 */
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| 37 | uint8_t node_offset[6];/* 14 */
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| 38 | uint8_t node_depth; /* 15 */
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| 39 | uint8_t inner_length; /* 16 */
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| 40 | uint8_t salt[BLAKE2S_SALTBYTES]; /* 24 */
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| 41 | uint8_t personal[BLAKE2S_PERSONALBYTES]; /* 32 */
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| 42 | };
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| 43 |
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| 44 | typedef struct blake2s_param_st BLAKE2S_PARAM;
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| 45 |
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| 46 | struct blake2s_ctx_st {
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| 47 | uint32_t h[8];
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| 48 | uint32_t t[2];
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| 49 | uint32_t f[2];
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| 50 | uint8_t buf[BLAKE2S_BLOCKBYTES];
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| 51 | size_t buflen;
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| 52 | };
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| 53 |
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| 54 | struct blake2b_param_st {
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| 55 | uint8_t digest_length; /* 1 */
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| 56 | uint8_t key_length; /* 2 */
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| 57 | uint8_t fanout; /* 3 */
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| 58 | uint8_t depth; /* 4 */
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| 59 | uint8_t leaf_length[4];/* 8 */
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| 60 | uint8_t node_offset[8];/* 16 */
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| 61 | uint8_t node_depth; /* 17 */
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| 62 | uint8_t inner_length; /* 18 */
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| 63 | uint8_t reserved[14]; /* 32 */
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| 64 | uint8_t salt[BLAKE2B_SALTBYTES]; /* 48 */
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| 65 | uint8_t personal[BLAKE2B_PERSONALBYTES]; /* 64 */
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| 66 | };
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| 67 |
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| 68 | typedef struct blake2b_param_st BLAKE2B_PARAM;
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| 69 |
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| 70 | struct blake2b_ctx_st {
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| 71 | uint64_t h[8];
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| 72 | uint64_t t[2];
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| 73 | uint64_t f[2];
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| 74 | uint8_t buf[BLAKE2B_BLOCKBYTES];
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| 75 | size_t buflen;
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| 76 | };
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| 77 |
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| 78 | #define BLAKE2B_DIGEST_LENGTH 64
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| 79 | #define BLAKE2S_DIGEST_LENGTH 32
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| 80 |
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| 81 | typedef struct blake2s_ctx_st BLAKE2S_CTX;
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| 82 | typedef struct blake2b_ctx_st BLAKE2B_CTX;
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| 83 |
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| 84 | int BLAKE2b_Init(BLAKE2B_CTX *c);
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| 85 | int BLAKE2b_Update(BLAKE2B_CTX *c, const void *data, size_t datalen);
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| 86 | int BLAKE2b_Final(unsigned char *md, BLAKE2B_CTX *c);
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| 87 |
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| 88 | int BLAKE2s_Init(BLAKE2S_CTX *c);
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| 89 | int BLAKE2s_Update(BLAKE2S_CTX *c, const void *data, size_t datalen);
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| 90 | int BLAKE2s_Final(unsigned char *md, BLAKE2S_CTX *c);
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