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1 files changed, 35 insertions, 0 deletions

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