1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2022 Triad National Security, LLC. All rights
* reserved.
*
* Additional copyrights may follow
*
* $HEADER$
*/
/*********************************************************************
* Filename: sha256.h
* Author: Brad Conte (brad AT bradconte.com)
* Copyright:
* Disclaimer: This code is presented "as is" without any guarantees.
* Details: Defines the API for the corresponding SHA1 implementation.
* Notes: see https://github.com/B-Con/crypto-algorithms
*********************************************************************/
#ifndef OPAL_SHA256_H
#define OPAL_SHA256_H
/*************************** HEADER FILES ***************************/
#include <stddef.h>
/****************************** MACROS ******************************/
#define OPAL_SHA256_BLOCK_SIZE 32 // SHA256 outputs a 32 byte digest
/**************************** DATA TYPES ****************************/
typedef unsigned char BYTE; // 8-bit byte
typedef unsigned int WORD; // 32-bit word, change to "long" for 16-bit machines
typedef struct {
BYTE data[64];
WORD datalen;
unsigned long long bitlen;
WORD state[8];
} opal_sha256_ctx;
/*********************** FUNCTION DECLARATIONS **********************/
void opal_sha256_init(opal_sha256_ctx *ctx);
void opal_sha256_update(opal_sha256_ctx *ctx, const BYTE data[], size_t len);
void opal_sha256_final(opal_sha256_ctx *ctx, BYTE hash[]);
#endif // OPAL_SHA256_H
|
