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44 lines
772 B
C++
44 lines
772 B
C++
#ifndef SIGNATURE_H__
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#define SIGNATURE_H__
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#include <inttypes.h>
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#include <cryptopp/dsa.h>
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#include "CryptoConst.h"
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namespace i2p
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{
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namespace crypto
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{
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class Verifier
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{
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public:
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virtual ~Verifier () {};
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virtual bool Verify (const uint8_t * buf, size_t len, const uint8_t * signature) = 0;
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};
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class DSAVerifier: public Verifier
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{
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public:
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DSAVerifier (const uint8_t * signingKey)
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{
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m_PublicKey.Initialize (dsap, dsaq, dsag, CryptoPP::Integer (signingKey, 128));
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}
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bool Verify (const uint8_t * buf, size_t len, const uint8_t * signature)
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{
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CryptoPP::DSA::Verifier verifier (m_PublicKey);
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return verifier.VerifyMessage (buf, len, signature, 40);
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}
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private:
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CryptoPP::DSA::PublicKey m_PublicKey;
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};
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}
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}
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#endif
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