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dsa.h

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00001 #ifndef CRYPTOPP_DSA_H 00002 #define CRYPTOPP_DSA_H 00003 00004 /** \file 00005 */ 00006 00007 #include "gfpcrypt.h" 00008 00009 NAMESPACE_BEGIN(CryptoPP) 00010 00011 /*! The DSA signature format used by Crypto++ is as defined by IEEE P1363. 00012 Java uses the DER format, and OpenPGP uses the OpenPGP format. */ 00013 enum DSASignatureFormat {DSA_P1363, DSA_DER, DSA_OPENPGP}; 00014 /** This function converts between these formats, and returns length of signature in the target format. 00015 If toFormat == DSA_P1363, bufferSize must equal publicKey.SignatureLength() */ 00016 unsigned int DSAConvertSignatureFormat(byte *buffer, unsigned int bufferSize, DSASignatureFormat toFormat, 00017 const byte *signature, unsigned int signatureLen, DSASignatureFormat fromFormat); 00018 00019 #ifdef CRYPTOPP_MAINTAIN_BACKWARDS_COMPATIBILITY 00020 00021 typedef DSA::Signer DSAPrivateKey; 00022 typedef DSA::Verifier DSAPublicKey; 00023 00024 const int MIN_DSA_PRIME_LENGTH = DSA::MIN_PRIME_LENGTH; 00025 const int MAX_DSA_PRIME_LENGTH = DSA::MAX_PRIME_LENGTH; 00026 const int DSA_PRIME_LENGTH_MULTIPLE = DSA::PRIME_LENGTH_MULTIPLE; 00027 00028 bool GenerateDSAPrimes(const byte *seed, unsigned int seedLength, int &counter, Integer &p, unsigned int primeLength, Integer &q) 00029 {return DSA::GeneratePrimes(seed, seedLength, counter, p, primeLength, q);} 00030 00031 #endif 00032 00033 NAMESPACE_END 00034 00035 #endif

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