RadioShuttle Lib for the STM32 L4 Heltec Board
Dependents: Turtle_RadioShuttle
Diff: util/sha256.h
- Revision:
- 0:0c31756924a2
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/util/sha256.h Wed Feb 06 15:26:48 2019 +0000 @@ -0,0 +1,42 @@ +/********************************************************************* +* 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> + +#ifdef __cplusplus +extern "C" { +#endif + +/****************************** 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]; +} SHA256_CTX; + +/*********************** FUNCTION DECLARATIONS **********************/ +void sha256_init(SHA256_CTX *ctx); +void sha256_update(SHA256_CTX *ctx, const BYTE data[], size_t len); +void sha256_final(SHA256_CTX *ctx, BYTE hash[]); + +#ifdef __cplusplus +} +#endif + +#endif // SHA256_H