1 /*********************************************************************
2 * Filename:   sha1.h
3 * Author:     Brad Conte (brad AT bradconte.com)
4 * Copyright:
5 * Disclaimer: This code is presented "as is" without any guarantees.
6 * Details:    Defines the API for the corresponding SHA1 implementation.
7 *********************************************************************/
8 
9 #ifndef SHA1_H
10 #define SHA1_H
11 
12 /*************************** HEADER FILES ***************************/
13 #include <stddef.h>
14 
15 #include "crypto_types.h"
16 
17 /****************************** MACROS ******************************/
18 #define SHA1_BLOCK_SIZE 20              // SHA1 outputs a 20 byte digest
19 
20 /**************************** DATA TYPES ****************************/
21 typedef struct {
22 	BYTE data[64];
23 	WORD datalen;
24 	unsigned long long bitlen;
25 	WORD state[5];
26 	WORD k[4];
27 } SHA1_CTX;
28 
29 /*********************** FUNCTION DECLARATIONS **********************/
30 void sha1_init(SHA1_CTX *ctx);
31 void sha1_update(SHA1_CTX *ctx, const BYTE data[], size_t len);
32 void sha1_final(SHA1_CTX *ctx, BYTE hash[]);
33 
34 #endif   // SHA1_H
35