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Diffstat (limited to 'src/crypto/blake2b.h')
| -rw-r--r-- | src/crypto/blake2b.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/src/crypto/blake2b.h b/src/crypto/blake2b.h new file mode 100644 index 000000000..ea00f381b --- /dev/null +++ b/src/crypto/blake2b.h @@ -0,0 +1,116 @@ +/* +Copyright (c) 2018-2019, tevador <tevador@gmail.com> + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +/* Original code from Argon2 reference source code package used under CC0 Licence + * https://github.com/P-H-C/phc-winner-argon2 + * Copyright 2015 + * Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves +*/ + +/// NOTE: implementation lifted out of randomx package + +#pragma once + +#include <stddef.h> +#include <stdint.h> +#include <limits.h> + +#if defined(__cplusplus) +extern "C" { +#endif + + enum blake2b_constant { + BLAKE2B_BLOCKBYTES = 128, + BLAKE2B_OUTBYTES = 64, + BLAKE2B_KEYBYTES = 64, + BLAKE2B_SALTBYTES = 16, + BLAKE2B_PERSONALBYTES = 16 + }; + +#pragma pack(push, 1) + typedef struct __blake2b_param { + uint8_t digest_length; /* 1 */ + uint8_t key_length; /* 2 */ + uint8_t fanout; /* 3 */ + uint8_t depth; /* 4 */ + uint32_t leaf_length; /* 8 */ + uint64_t node_offset; /* 16 */ + uint8_t node_depth; /* 17 */ + uint8_t inner_length; /* 18 */ + uint8_t reserved[14]; /* 32 */ + uint8_t salt[BLAKE2B_SALTBYTES]; /* 48 */ + uint8_t personal[BLAKE2B_PERSONALBYTES]; /* 64 */ + } blake2b_param; +#pragma pack(pop) + + typedef struct __blake2b_state { + uint64_t h[8]; + uint64_t t[2]; + uint64_t f[2]; + uint8_t buf[BLAKE2B_BLOCKBYTES]; + unsigned buflen; + unsigned outlen; + uint8_t last_node; + } blake2b_state; + + /* Ensure param structs have not been wrongly padded */ + /* Poor man's static_assert */ + enum { + blake2_size_check_0 = 1 / !!(CHAR_BIT == 8), + blake2_size_check_2 = + 1 / !!(sizeof(blake2b_param) == sizeof(uint64_t) * CHAR_BIT) + }; + + // crypto namespace (fixes naming collisions with libsodium) +#define blake2b_init crypto_blake2b_init +#define blake2b_init_key crypto_blake2b_init_key +#define blake2b_init_param crypto_blake2b_init_param +#define blake2b_update crypto_blake2b_update +#define blake2b_final crypto_blake2b_final +#define blake2b crypto_blake2b +#define blake2b_long crypto_blake2b_long + + /* Streaming API */ + int blake2b_init(blake2b_state *S, size_t outlen); + int blake2b_init_key(blake2b_state *S, size_t outlen, const void *key, + size_t keylen); + int blake2b_init_param(blake2b_state *S, const blake2b_param *P); + int blake2b_update(blake2b_state *S, const void *in, size_t inlen); + int blake2b_final(blake2b_state *S, void *out, size_t outlen); + + /* Simple API */ + int blake2b(void *out, size_t outlen, const void *in, size_t inlen, + const void *key, size_t keylen); + + /* Argon2 Team - Begin Code */ + int blake2b_long(void *out, size_t outlen, const void *in, size_t inlen); + /* Argon2 Team - End Code */ + +#if defined(__cplusplus) +} +#endif |