1 files changed, 0 insertions, 97 deletions
diff --git a/lib/cryptopp/oaep.cpp b/lib/cryptopp/oaep.cpp
deleted file mode 100644
index 1d474be52..000000000
--- a/lib/cryptopp/oaep.cpp
+++ /dev/null
@@ -1,97 +0,0 @@
-// oaep.cpp - written and placed in the public domain by Wei Dai
-
-#include "pch.h"
-
-#ifndef CRYPTOPP_IMPORTS
-
-#include "oaep.h"
-#include <functional>
-
-NAMESPACE_BEGIN(CryptoPP)
-
-// ********************************************************
-
-size_t OAEP_Base::MaxUnpaddedLength(size_t paddedLength) const
-{
-	return SaturatingSubtract(paddedLength/8, 1+2*DigestSize());
-}
-
-void OAEP_Base::Pad(RandomNumberGenerator &rng, const byte *input, size_t inputLength, byte *oaepBlock, size_t oaepBlockLen, const NameValuePairs &parameters) const
-{
-	assert (inputLength <= MaxUnpaddedLength(oaepBlockLen));
-
-	// convert from bit length to byte length
-	if (oaepBlockLen % 8 != 0)
-	{
-		oaepBlock[0] = 0;
-		oaepBlock++;
-	}
-	oaepBlockLen /= 8;
-
-	std::auto_ptr<HashTransformation> pHash(NewHash());
-	const size_t hLen = pHash->DigestSize();
-	const size_t seedLen = hLen, dbLen = oaepBlockLen-seedLen;
-	byte *const maskedSeed = oaepBlock;
-	byte *const maskedDB = oaepBlock+seedLen;
-
-	ConstByteArrayParameter encodingParameters;
-	parameters.GetValue(Name::EncodingParameters(), encodingParameters);
-
-	// DB = pHash || 00 ... || 01 || M
-	pHash->CalculateDigest(maskedDB, encodingParameters.begin(), encodingParameters.size());
-	memset(maskedDB+hLen, 0, dbLen-hLen-inputLength-1);
-	maskedDB[dbLen-inputLength-1] = 0x01;
-	memcpy(maskedDB+dbLen-inputLength, input, inputLength);
-
-	rng.GenerateBlock(maskedSeed, seedLen);
-	std::auto_ptr<MaskGeneratingFunction> pMGF(NewMGF());
-	pMGF->GenerateAndMask(*pHash, maskedDB, dbLen, maskedSeed, seedLen);
-	pMGF->GenerateAndMask(*pHash, maskedSeed, seedLen, maskedDB, dbLen);
-}
-
-DecodingResult OAEP_Base::Unpad(const byte *oaepBlock, size_t oaepBlockLen, byte *output, const NameValuePairs &parameters) const
-{
-	bool invalid = false;
-
-	// convert from bit length to byte length
-	if (oaepBlockLen % 8 != 0)
-	{
-		invalid = (oaepBlock[0] != 0) || invalid;
-		oaepBlock++;
-	}
-	oaepBlockLen /= 8;
-
-	std::auto_ptr<HashTransformation> pHash(NewHash());
-	const size_t hLen = pHash->DigestSize();
-	const size_t seedLen = hLen, dbLen = oaepBlockLen-seedLen;
-
-	invalid = (oaepBlockLen < 2*hLen+1) || invalid;
-
-	SecByteBlock t(oaepBlock, oaepBlockLen);
-	byte *const maskedSeed = t;
-	byte *const maskedDB = t+seedLen;
-
-	std::auto_ptr<MaskGeneratingFunction> pMGF(NewMGF());
-	pMGF->GenerateAndMask(*pHash, maskedSeed, seedLen, maskedDB, dbLen);
-	pMGF->GenerateAndMask(*pHash, maskedDB, dbLen, maskedSeed, seedLen);
-
-	ConstByteArrayParameter encodingParameters;
-	parameters.GetValue(Name::EncodingParameters(), encodingParameters);
-
-	// DB = pHash' || 00 ... || 01 || M
-	byte *M = std::find(maskedDB+hLen, maskedDB+dbLen, 0x01);
-	invalid = (M == maskedDB+dbLen) || invalid;
-	invalid = (std::find_if(maskedDB+hLen, M, std::bind2nd(std::not_equal_to<byte>(), 0)) != M) || invalid;
-	invalid = !pHash->VerifyDigest(maskedDB, encodingParameters.begin(), encodingParameters.size()) || invalid;
-
-	if (invalid)
-		return DecodingResult();
-
-	M++;
-	memcpy(output, M, maskedDB+dbLen-M);
-	return DecodingResult(maskedDB+dbLen-M);
-}
-
-NAMESPACE_END
-
-#endif