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86 lines
2.4 KiB
86 lines
2.4 KiB
8 years ago
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/*
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BLAKE2 reference source code package - optimized C implementations
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Written in 2012 by Samuel Neves <sneves@dei.uc.pt>
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To the extent possible under law, the author(s) have dedicated all copyright
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and related and neighboring rights to this software to the public domain
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worldwide. This software is distributed without any warranty.
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You should have received a copy of the CC0 Public Domain Dedication along with
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this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
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*/
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#pragma once
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#ifndef __BLAKE2_H__
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#define __BLAKE2_H__
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#include <stddef.h>
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#include <stdint.h>
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#if defined(_MSC_VER)
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#define ALIGN(x) __declspec(align(x))
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#else
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#define ALIGN(x) __attribute__ ((__aligned__(x)))
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#endif
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#if defined(__cplusplus)
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extern "C" {
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#endif
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enum blake2b_constant
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{
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BLAKE2B_BLOCKBYTES = 128,
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BLAKE2B_OUTBYTES = 64,
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BLAKE2B_KEYBYTES = 64,
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BLAKE2B_SALTBYTES = 16,
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BLAKE2B_PERSONALBYTES = 16
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};
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#pragma pack(push, 1)
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typedef struct __blake2b_param
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{
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uint8_t digest_length; // 1
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uint8_t key_length; // 2
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uint8_t fanout; // 3
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uint8_t depth; // 4
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uint32_t leaf_length; // 8
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uint64_t node_offset; // 16
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uint8_t node_depth; // 17
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uint8_t inner_length; // 18
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uint8_t reserved[14]; // 32
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uint8_t salt[BLAKE2B_SALTBYTES]; // 48
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uint8_t personal[BLAKE2B_PERSONALBYTES]; // 64
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} blake2b_param;
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ALIGN( 64 ) typedef struct __blake2b_state
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{
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uint64_t h[8];
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uint8_t buf[BLAKE2B_BLOCKBYTES];
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uint16_t counter;
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uint8_t buflen;
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uint8_t lastblock;
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} blake2b_state;
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#pragma pack(pop)
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int eq_blake2b_init( blake2b_state *S, const uint8_t outlen );
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int eq_blake2b_init_key( blake2b_state *S, const uint8_t outlen, const void *key, const uint8_t keylen );
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int eq_blake2b_init_param( blake2b_state *S, const blake2b_param *P );
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int eq_blake2b_update( blake2b_state *S, const uint8_t *in, uint64_t inlen );
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int eq_blake2b_final( blake2b_state *S, uint8_t *out, uint8_t outlen );
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// Simple API
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int eq_blake2b( uint8_t *out, const void *in, const void *key, const uint8_t outlen, const uint64_t inlen, uint8_t keylen );
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static inline int eq_blake2( uint8_t *out, const void *in, const void *key, const uint8_t outlen, const uint64_t inlen, uint8_t keylen )
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{
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return eq_blake2b( out, in, key, outlen, inlen, keylen );
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}
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#if defined(__cplusplus)
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}
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#endif
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#endif
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