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#pragma once
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/*********************************************************************
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* Filename: sha256.h
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* Author: Brad Conte (brad AT bradconte.com)
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* Copyright:
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* Disclaimer: This code is presented "as is" without any guarantees.
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* Details: Defines the API for the corresponding SHA1 implementation.
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*********************************************************************/
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#ifndef SHA256_H
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#define SHA256_H
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#include "stdint.h"
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/*************************** HEADER FILES ***************************/
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#include <stddef.h>
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/****************************** MACROS ******************************/
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#define SHA256_BLOCK_SIZE 32 // SHA256 outputs a 32 byte digest
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typedef struct {
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uint8_t data[64];
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uint32_t datalen;
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unsigned long long bitlen;
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uint32_t state[8];
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} SHA256_CONTEXT;
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/*********************** FUNCTION DECLARATIONS **********************/
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void SHA256Init(SHA256_CONTEXT* ctx);
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void SHA256Update(SHA256_CONTEXT* ctx, const uint8_t data[], size_t len);
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void SHA256Final(SHA256_CONTEXT* ctx, uint8_t hash[]);
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#endif // SHA256_H
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