25 lines
846 B
C
25 lines
846 B
C
// dsa.h - written and placed in the public domain by Wei Dai
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//! \file
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//! \headerfile dsa.h
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//! \brief Classes for DSA signature algorithm
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#ifndef CRYPTOPP_DSA_H
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#define CRYPTOPP_DSA_H
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#include "cryptlib.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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NAMESPACE_END
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#endif
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