1b7f622410
Everyone loves to names similar things the same, then there're conflicts between different libraries. The namespace prefix used is "CRYAL_", which is weird, and that's good, as that minimizes chance of another conflict.
35 lines
1.2 KiB
C
35 lines
1.2 KiB
C
/*********************************************************************
|
|
* 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.
|
|
*********************************************************************/
|
|
|
|
#ifndef SHA256_H
|
|
#define SHA256_H
|
|
|
|
/*************************** HEADER FILES ***************************/
|
|
#include <stddef.h>
|
|
|
|
/****************************** MACROS ******************************/
|
|
#define 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];
|
|
} CRYAL_SHA256_CTX;
|
|
|
|
/*********************** FUNCTION DECLARATIONS **********************/
|
|
void sha256_init(CRYAL_SHA256_CTX *ctx);
|
|
void sha256_update(CRYAL_SHA256_CTX *ctx, const BYTE data[], size_t len);
|
|
void sha256_final(CRYAL_SHA256_CTX *ctx, BYTE hash[]);
|
|
|
|
#endif // SHA256_H
|