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// SPDX-FileContributor: Brad Conte <brad@bradconte.com>
// Identified to be public domain by ducky
// Disclaimer: This code is presented "as is" without any guarantees.
#ifndef SHA256_H
#define SHA256_H
#include <stddef.h>
#define SHA256_BLOCK_SIZE 32 // SHA256 outputs a 32 byte digest
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;
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[]);
#endif // SHA256_H
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