40 lines
1.1 KiB
C++
40 lines
1.1 KiB
C++
// Copyright (c) 2009-2014 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_ECWRAPPER_H
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#define BITCOIN_ECWRAPPER_H
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#include <cstddef>
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#include <vector>
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#include <openssl/ec.h>
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class uint256;
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/** RAII Wrapper around OpenSSL's EC_KEY */
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class CECKey {
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private:
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EC_KEY *pkey;
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public:
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CECKey();
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~CECKey();
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void GetPubKey(std::vector<unsigned char>& pubkey, bool fCompressed);
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bool SetPubKey(const unsigned char* pubkey, size_t size);
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bool Verify(const uint256 &hash, const std::vector<unsigned char>& vchSig);
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/**
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* reconstruct public key from a compact signature
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* This is only slightly more CPU intensive than just verifying it.
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* If this function succeeds, the recovered public key is guaranteed to be valid
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* (the signature is a valid signature of the given data for that key)
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*/
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bool Recover(const uint256 &hash, const unsigned char *p64, int rec);
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bool TweakPublic(const unsigned char vchTweak[32]);
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static bool SanityCheck();
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};
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#endif // BITCOIN_ECWRAPPER_H
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