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#ifndef CRYPTOPP_DSA_H
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#define CRYPTOPP_DSA_H
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/** \file
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*/
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#include "gfpcrypt.h"
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NAMESPACE_BEGIN(CryptoPP)
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/*! The DSA signature format used by Crypto++ is as defined by IEEE P1363.
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Java uses the DER format, and OpenPGP uses the OpenPGP format. */
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enum DSASignatureFormat {DSA_P1363, DSA_DER, DSA_OPENPGP};
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/** This function converts between these formats, and returns length of signature in the target format.
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If toFormat == DSA_P1363, bufferSize must equal publicKey.SignatureLength() */
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size_t DSAConvertSignatureFormat(byte *buffer, size_t bufferSize, DSASignatureFormat toFormat,
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const byte *signature, size_t signatureLen, DSASignatureFormat fromFormat);
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#ifdef CRYPTOPP_MAINTAIN_BACKWARDS_COMPATIBILITY
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typedef DSA::Signer DSAPrivateKey;
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typedef DSA::Verifier DSAPublicKey;
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const int MIN_DSA_PRIME_LENGTH = DSA::MIN_PRIME_LENGTH;
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const int MAX_DSA_PRIME_LENGTH = DSA::MAX_PRIME_LENGTH;
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const int DSA_PRIME_LENGTH_MULTIPLE = DSA::PRIME_LENGTH_MULTIPLE;
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inline bool GenerateDSAPrimes(const byte *seed, size_t seedLength, int &counter, Integer &p, unsigned int primeLength, Integer &q)
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{return DSA::GeneratePrimes(seed, seedLength, counter, p, primeLength, q);}
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#endif
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NAMESPACE_END
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#endif
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