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	blake2.h (4914B)
	---
	1 /*
	2 BLAKE2 reference source code package - reference C implementations
	3
	4 Written in 2012 by Samuel Neves <[email protected]>
	5
	6 To the extent possible under law, the author(s) have dedicated all co…
	7 and related and neighboring rights to this software to the public dom…
	8 worldwide. This software is distributed without any warranty.
	9
	10 You should have received a copy of the CC0 Public Domain Dedication a…
	11 this software. If not, see <http://creativecommons.org/publicdomain/z…
	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(__cplusplus)
	21 extern "C" {
	22 #endif
	23
	24 enum blake2s_constant
	25 {
	26 BLAKE2S_BLOCKBYTES = 64,
	27 BLAKE2S_OUTBYTES = 32,
	28 BLAKE2S_KEYBYTES = 32,
	29 BLAKE2S_SALTBYTES = 8,
	30 BLAKE2S_PERSONALBYTES = 8
	31 };
	32
	33 enum blake2b_constant
	34 {
	35 BLAKE2B_BLOCKBYTES = 128,
	36 BLAKE2B_OUTBYTES = 64,
	37 BLAKE2B_KEYBYTES = 64,
	38 BLAKE2B_SALTBYTES = 16,
	39 BLAKE2B_PERSONALBYTES = 16
	40 };
	41
	42 #pragma pack(push, 1)
	43 typedef struct __blake2s_param
	44 {
	45 uint8_t digest_length; // 1
	46 uint8_t key_length; // 2
	47 uint8_t fanout; // 3
	48 uint8_t depth; // 4
	49 uint32_t leaf_length; // 8
	50 uint8_t node_offset[6];// 14
	51 uint8_t node_depth; // 15
	52 uint8_t inner_length; // 16
	53 // uint8_t reserved[0];
	54 uint8_t salt[BLAKE2S_SALTBYTES]; // 24
	55 uint8_t personal[BLAKE2S_PERSONALBYTES]; // 32
	56 } blake2s_param;
	57
	58 typedef struct __blake2s_state
	59 {
	60 uint32_t h[8];
	61 uint32_t t[2];
	62 uint32_t f[2];
	63 uint8_t buf[2 * BLAKE2S_BLOCKBYTES];
	64 size_t buflen;
	65 uint8_t last_node;
	66 } blake2s_state;
	67
	68 typedef struct __blake2b_param
	69 {
	70 uint8_t digest_length; // 1
	71 uint8_t key_length; // 2
	72 uint8_t fanout; // 3
	73 uint8_t depth; // 4
	74 uint32_t leaf_length; // 8
	75 uint64_t node_offset; // 16
	76 uint8_t node_depth; // 17
	77 uint8_t inner_length; // 18
	78 uint8_t reserved[14]; // 32
	79 uint8_t salt[BLAKE2B_SALTBYTES]; // 48
	80 uint8_t personal[BLAKE2B_PERSONALBYTES]; // 64
	81 } blake2b_param;
	82
	83 typedef struct __blake2b_state
	84 {
	85 uint64_t h[8];
	86 uint64_t t[2];
	87 uint64_t f[2];
	88 uint8_t buf[2 * BLAKE2B_BLOCKBYTES];
	89 size_t buflen;
	90 uint8_t last_node;
	91 } blake2b_state;
	92
	93 typedef struct __blake2sp_state
	94 {
	95 blake2s_state S[8][1];
	96 blake2s_state R[1];
	97 uint8_t buf[8 * BLAKE2S_BLOCKBYTES];
	98 size_t buflen;
	99 } blake2sp_state;
	100
	101 typedef struct __blake2bp_state
	102 {
	103 blake2b_state S[4][1];
	104 blake2b_state R[1];
	105 uint8_t buf[4 * BLAKE2B_BLOCKBYTES];
	106 size_t buflen;
	107 } blake2bp_state;
	108 #pragma pack(pop)
	109
	110 // Streaming API
	111 int blake2s_init( blake2s_state *S, const uint8_t outlen );
	112 int blake2s_init_key( blake2s_state *S, const uint8_t outlen, const vo…
	113 int blake2s_init_param( blake2s_state S, const blake2s_param P );
	114 int blake2s_update( blake2s_state S, const uint8_t in, uint64_t inle…
	115 int blake2s_final( blake2s_state S, uint8_t out, uint8_t outlen );
	116
	117 int blake2b_init( blake2b_state *S, const uint8_t outlen );
	118 int blake2b_init_key( blake2b_state *S, const uint8_t outlen, const vo…
	119 int blake2b_init_param( blake2b_state S, const blake2b_param P );
	120 int blake2b_update( blake2b_state S, const uint8_t in, uint64_t inle…
	121 int blake2b_final( blake2b_state S, uint8_t out, uint8_t outlen );
	122
	123 int blake2sp_init( blake2sp_state *S, const uint8_t outlen );
	124 int blake2sp_init_key( blake2sp_state *S, const uint8_t outlen, const …
	125 int blake2sp_update( blake2sp_state S, const uint8_t in, uint64_t in…
	126 int blake2sp_final( blake2sp_state S, uint8_t out, uint8_t outlen );
	127
	128 int blake2bp_init( blake2bp_state *S, const uint8_t outlen );
	129 int blake2bp_init_key( blake2bp_state *S, const uint8_t outlen, const …
	130 int blake2bp_update( blake2bp_state S, const uint8_t in, uint64_t in…
	131 int blake2bp_final( blake2bp_state S, uint8_t out, uint8_t outlen );
	132
	133 // Simple API
	134 int blake2s( uint8_t out, const void in, const void *key, const uint…
	135 int blake2b( uint8_t out, const void in, const void *key, const uint…
	136
	137 int blake2sp( uint8_t out, const void in, const void *key, const uin…
	138 int blake2bp( uint8_t out, const void in, const void *key, const uin…
	139
	140 static inline int blake2( uint8_t out, const void in, const void *ke…
	141 {
	142 return blake2b( out, in, key, outlen, inlen, keylen );
	143 }
	144
	145 #if defined(__cplusplus)
	146 }
	147 #endif
	148
	149 #endif
	150