mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-23 14:58:09 +00:00
97 lines
3.3 KiB
C
97 lines
3.3 KiB
C
/* Groestl hash from https://github.com/Groestlcoin/vanitygen
|
|
* Trezor adaptation by Yura Pakhuchiy <pakhuchiy@gmail.com>. */
|
|
/**
|
|
* Groestl interface. This code implements Groestl with the recommended
|
|
* parameters for SHA-3, with output of 512 bits.
|
|
*
|
|
* ==========================(LICENSE BEGIN)============================
|
|
*
|
|
* Copyright (c) 2007-2010 Projet RNRT SAPHIR
|
|
*
|
|
* 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:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* 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
|
|
* @author Thomas Pornin <thomas.pornin@cryptolog.com>
|
|
*/
|
|
|
|
#ifndef GROESTL_H__
|
|
#define GROESTL_H__
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
/**
|
|
* This structure is a context for Groestl-512 computation:
|
|
* 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;
|
|
} 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);
|
|
|
|
/* Calculate double Groestl-512 hash and truncate it to 256-bits. */
|
|
void groestl512_DoubleTrunc(void *cc, void *dst);
|
|
|
|
#endif
|