1
0
mirror of https://github.com/trezor/trezor-firmware.git synced 2024-12-05 22:18:16 +00:00
trezor-firmware/crypto/groestl.h

97 lines
3.3 KiB
C
Raw Normal View History

/* Groestl hash from https://github.com/Groestlcoin/vanitygen
* Trezor adaptation by Yura Pakhuchiy <pakhuchiy@gmail.com>. */
2018-03-11 04:35:45 +00:00
/**
* Groestl interface. This code implements Groestl with the recommended
* parameters for SHA-3, with output of 512 bits.
2018-03-11 04:35:45 +00:00
*
* ==========================(LICENSE BEGIN)============================
*
* Copyright (c) 2007-2010 Projet RNRT SAPHIR
*
2018-03-11 04:35:45 +00:00
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
2018-03-11 04:35:45 +00:00
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
2018-03-11 04:35:45 +00:00
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* ===========================(LICENSE END)=============================
*
* @file groestl.h
2018-03-11 04:35:45 +00:00
* @author Thomas Pornin <thomas.pornin@cryptolog.com>
*/
#ifndef GROESTL_H__
#define GROESTL_H__
2018-03-11 04:35:45 +00:00
#include <stddef.h>
2024-09-24 12:48:23 +00:00
#include <stdint.h>
2018-03-11 04:35:45 +00:00
/**
* This structure is a context for Groestl-512 computation:
2018-03-11 04:35:45 +00:00
* it contains the intermediate values and some data from the last
* entered block. Once a Groestl computation has been performed, the
* context can be reused for another computation.
*
* The contents of this structure are private. A running Groestl
* computation can be cloned by copying the context (e.g. with a simple
* <code>memcpy()</code>).
*/
typedef struct {
unsigned char buf[128]; /* first field, for alignment */
size_t ptr;
union {
uint64_t wide[16];
uint32_t narrow[32];
} state;
uint64_t count;
2018-03-11 04:35:45 +00:00
} sph_groestl_big_context;
typedef sph_groestl_big_context GROESTL512_CTX;
/**
* Initialize a Groestl-512 context. This process performs no memory allocation.
*
* @param cc the Groestl-512 context (pointer to a
* <code>GROESTL512_CTX</code>)
*/
void groestl512_Init(void *cc);
/**
* Process some data bytes. It is acceptable that <code>len</code> is zero
* (in which case this function does nothing).
*
* @param cc the Groestl-512 context
* @param data the input data
* @param len the input data length (in bytes)
*/
void groestl512_Update(void *cc, const void *data, size_t len);
/**
* Terminate the current Groestl-512 computation and output the result into
* the provided buffer. The destination buffer must be wide enough to
* accomodate the result (64 bytes). The context is automatically
* reinitialized.
*
* @param cc the Groestl-512 context
* @param dst the destination buffer
*/
void groestl512_Final(void *cc, void *dst);
2018-04-04 20:27:57 +00:00
/* Calculate double Groestl-512 hash and truncate it to 256-bits. */
void groestl512_DoubleTrunc(void *cc, void *dst);
2018-03-11 04:35:45 +00:00
#endif