unleashed-firmware/applications/external/totp/services/hmac/hmac_sha256.h

#pragma once

#include <stddef.h>

#define HMAC_SHA256_RESULT_SIZE 32

/* Compute Hashed Message Authentication Code with SHA-256, over BUFFER
   data of BUFLEN bytes using the KEY of KEYLEN bytes, writing the
   output to pre-allocated 32 byte minimum RESBUF buffer.  Return 0 on
   success.  */
int hmac_sha256(const void* key, size_t keylen, const void* in, size_t inlen, void* restrict resbuf);
addding some great plugins to be preinstalled and running fbt format, and fixing TOTP printf format 2022-10-12 02:01:37 +00:00			`#pragma once`

			`#include <stddef.h>`

			`#define HMAC_SHA256_RESULT_SIZE 32`

			`/* Compute Hashed Message Authentication Code with SHA-256, over BUFFER`
			`data of BUFLEN bytes using the KEY of KEYLEN bytes, writing the`
			`output to pre-allocated 32 byte minimum RESBUF buffer. Return 0 on`
			`success. */`
run fbt format 2022-10-13 14:00:20 +00:00			`int hmac_sha256(const void* key, size_t keylen, const void* in, size_t inlen, void* restrict resbuf);`