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39 lines
1.0 KiB
C++
39 lines
1.0 KiB
C++
#include <memory>
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#include <cryptopp/integer.h>
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#include <cryptopp/eccrypto.h>
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#include "util/Log.h"
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#include "Signature.h"
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namespace i2p {
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namespace crypto {
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DSASigner::DSASigner(const uint8_t * signingPrivateKey)
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{
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m_PrivateKey.Initialize(
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dsap, dsaq, dsag,
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CryptoPP::Integer(signingPrivateKey, DSA_PRIVATE_KEY_LENGTH)
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);
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}
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void DSASigner::Sign(CryptoPP::RandomNumberGenerator& rnd, const uint8_t * buf,
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int len, uint8_t * signature) const
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{
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CryptoPP::DSA::Signer signer(m_PrivateKey);
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signer.SignMessage(rnd, buf, len, signature);
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}
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void CreateDSARandomKeys(CryptoPP::RandomNumberGenerator& rnd,
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uint8_t* signingPrivateKey, uint8_t* signingPublicKey)
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{
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CryptoPP::DSA::PrivateKey privateKey;
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CryptoPP::DSA::PublicKey publicKey;
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privateKey.Initialize(rnd, dsap, dsaq, dsag);
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privateKey.MakePublicKey(publicKey);
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privateKey.GetPrivateExponent().Encode(signingPrivateKey, DSA_PRIVATE_KEY_LENGTH);
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publicKey.GetPublicElement().Encode(signingPublicKey, DSA_PUBLIC_KEY_LENGTH);
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}
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} // crypto
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} // i2p
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