/Users/eugenesiegel/btc/bitcoin/src/crypto/hmac_sha256.h

Source (jump to first uncovered line)
// Copyright (c) 2014-present The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#ifndef BITCOIN_CRYPTO_HMAC_SHA256_H
#define BITCOIN_CRYPTO_HMAC_SHA256_H

#include <crypto/sha256.h>

#include <cstdint>
#include <cstdlib>

/** A hasher class for HMAC-SHA-256. */
class CHMAC_SHA256
{
private:
    CSHA256 outer;
    CSHA256 inner;

public:
    static const size_t OUTPUT_SIZE = 32;

    CHMAC_SHA256(const unsigned char* key, size_t keylen);
    CHMAC_SHA256& Write(const unsigned char* data, size_t len)
    {
        inner.Write(data, len);
        return *this;
    }
    void Finalize(unsigned char hash[OUTPUT_SIZE]);
};

#endif // BITCOIN_CRYPTO_HMAC_SHA256_H

fuzz coverage

Coverage Report

Created: 2025-10-29 15:27

Line	Count	Source (jump to first uncovered line)
1		// Copyright (c) 2014-present The Bitcoin Core developers
2		// Distributed under the MIT software license, see the accompanying
3		// file COPYING or http://www.opensource.org/licenses/mit-license.php.
4
5		#ifndef BITCOIN_CRYPTO_HMAC_SHA256_H
6		#define BITCOIN_CRYPTO_HMAC_SHA256_H
7
8		#include <crypto/sha256.h>
9
10		#include <cstdint>
11		#include <cstdlib>
12
13		/** A hasher class for HMAC-SHA-256. */
14		class CHMAC_SHA256
15		{
16		private:
17		CSHA256 outer;
18		CSHA256 inner;
19
20		public:
21		static const size_t OUTPUT_SIZE = 32;
22
23		CHMAC_SHA256(const unsigned char* key, size_t keylen);
24		CHMAC_SHA256& Write(const unsigned char* data, size_t len)
25	0	{
26	0	inner.Write(data, len);
27	0	return *this;
28	0	}
29		void Finalize(unsigned char hash[OUTPUT_SIZE]);
30		};
31
32		#endif // BITCOIN_CRYPTO_HMAC_SHA256_H