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#ifndef TINYSHA256_H
#define TINYSHA256_H
/*
* tinysha256 — public-domain SHA-256 for HyBBX (bundled, no external deps).
* Adapted from the Unlicense implementation by 983 (https://github.com/983/SHA-256).
*/
#include <stddef.h>
#include <stdint.h>
#define TINYSHA256_HEX_SIZE (64 + 1)
#define TINYSHA256_BYTES_SIZE 32
void tinysha256_hex(const void *src, size_t n_bytes, char *dst_hex65);
void tinysha256_bytes(const void *src, size_t n_bytes, void *dst_bytes32);
typedef struct tinysha256_ctx {
uint32_t state[8];
uint8_t buffer[64];
uint64_t n_bits;
uint8_t buffer_counter;
} tinysha256_ctx_t;
void tinysha256_init(tinysha256_ctx_t *ctx);
void tinysha256_append(tinysha256_ctx_t *ctx, const void *data, size_t n_bytes);
void tinysha256_finalize_hex(tinysha256_ctx_t *ctx, char *dst_hex65);
void tinysha256_finalize_bytes(tinysha256_ctx_t *ctx, void *dst_bytes32);
#endif /* TINYSHA256_H */
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