/********************************************************************* * Filename: sha1.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 SHA1_H #define SHA1_H /*************************** HEADER FILES ***************************/ #include <stddef.h> /****************************** MACROS ******************************/ #define SHA1_BLOCK_SIZE 20 // SHA1 outputs a 20 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[5]; WORD k[4]; } SHA1_CTX; /*********************** FUNCTION DECLARATIONS **********************/ void sha1_init(SHA1_CTX *ctx); void sha1_update(SHA1_CTX *ctx, const BYTE data[], size_t len); void sha1_final(SHA1_CTX *ctx, BYTE hash[]); #endif // SHA1_H