/root/bitcoin/src/crypto/hmac_sha512.h
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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_SHA512_H |
6 | | #define BITCOIN_CRYPTO_HMAC_SHA512_H |
7 | | |
8 | | #include <crypto/sha512.h> |
9 | | |
10 | | #include <cstddef> |
11 | | |
12 | | /** A hasher class for HMAC-SHA-512. */ |
13 | | class CHMAC_SHA512 |
14 | | { |
15 | | private: |
16 | | CSHA512 outer; |
17 | | CSHA512 inner; |
18 | | |
19 | | public: |
20 | | static const size_t OUTPUT_SIZE = 64; |
21 | | |
22 | | CHMAC_SHA512(const unsigned char* key, size_t keylen); |
23 | | CHMAC_SHA512& Write(const unsigned char* data, size_t len) |
24 | 0 | { |
25 | 0 | inner.Write(data, len); |
26 | 0 | return *this; |
27 | 0 | } |
28 | | void Finalize(unsigned char hash[OUTPUT_SIZE]); |
29 | | }; |
30 | | |
31 | | #endif // BITCOIN_CRYPTO_HMAC_SHA512_H |