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diff --git a/lib/cryptopp/eccrypto.h b/lib/cryptopp/eccrypto.h
deleted file mode 100644
index 3530455a3..000000000
--- a/lib/cryptopp/eccrypto.h
+++ /dev/null
@@ -1,280 +0,0 @@
-#ifndef CRYPTOPP_ECCRYPTO_H
-#define CRYPTOPP_ECCRYPTO_H
-
-/*! \file
-*/
-
-#include "pubkey.h"
-#include "integer.h"
-#include "asn.h"
-#include "hmac.h"
-#include "sha.h"
-#include "gfpcrypt.h"
-#include "dh.h"
-#include "mqv.h"
-#include "ecp.h"
-#include "ec2n.h"
-
-NAMESPACE_BEGIN(CryptoPP)
-
-//! Elliptic Curve Parameters
-/*! This class corresponds to the ASN.1 sequence of the same name
-    in ANSI X9.62 (also SEC 1).
-*/
-template <class EC>
-class DL_GroupParameters_EC : public DL_GroupParametersImpl<EcPrecomputation<EC> >
-{
-	typedef DL_GroupParameters_EC<EC> ThisClass;
-
-public:
-	typedef EC EllipticCurve;
-	typedef typename EllipticCurve::Point Point;
-	typedef Point Element;
-	typedef IncompatibleCofactorMultiplication DefaultCofactorOption;
-
-	DL_GroupParameters_EC() : m_compress(false), m_encodeAsOID(false) {}
-	DL_GroupParameters_EC(const OID &oid)
-		: m_compress(false), m_encodeAsOID(false) {Initialize(oid);}
-	DL_GroupParameters_EC(const EllipticCurve &ec, const Point &G, const Integer &n, const Integer &k = Integer::Zero())
-		: m_compress(false), m_encodeAsOID(false) {Initialize(ec, G, n, k);}
-	DL_GroupParameters_EC(BufferedTransformation &bt)
-		: m_compress(false), m_encodeAsOID(false) {BERDecode(bt);}
-
-	void Initialize(const EllipticCurve &ec, const Point &G, const Integer &n, const Integer &k = Integer::Zero())
-	{
-		this->m_groupPrecomputation.SetCurve(ec);
-		this->SetSubgroupGenerator(G);
-		m_n = n;
-		m_k = k;
-	}
-	void Initialize(const OID &oid);
-
-	// NameValuePairs
-	bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const;
-	void AssignFrom(const NameValuePairs &source);
-
-	// GeneratibleCryptoMaterial interface
-	//! this implementation doesn't actually generate a curve, it just initializes the parameters with existing values
-	/*! parameters: (Curve, SubgroupGenerator, SubgroupOrder, Cofactor (optional)), or (GroupOID) */
-	void GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &alg);
-
-	// DL_GroupParameters
-	const DL_FixedBasePrecomputation<Element> & GetBasePrecomputation() const {return this->m_gpc;}
-	DL_FixedBasePrecomputation<Element> & AccessBasePrecomputation() {return this->m_gpc;}
-	const Integer & GetSubgroupOrder() const {return m_n;}
-	Integer GetCofactor() const;
-	bool ValidateGroup(RandomNumberGenerator &rng, unsigned int level) const;
-	bool ValidateElement(unsigned int level, const Element &element, const DL_FixedBasePrecomputation<Element> *precomp) const;
-	bool FastSubgroupCheckAvailable() const {return false;}
-	void EncodeElement(bool reversible, const Element &element, byte *encoded) const
-	{
-		if (reversible)
-			GetCurve().EncodePoint(encoded, element, m_compress);
-		else
-			element.x.Encode(encoded, GetEncodedElementSize(false));
-	}
-	unsigned int GetEncodedElementSize(bool reversible) const
-	{
-		if (reversible)
-			return GetCurve().EncodedPointSize(m_compress);
-		else
-			return GetCurve().GetField().MaxElementByteLength();
-	}
-	Element DecodeElement(const byte *encoded, bool checkForGroupMembership) const
-	{
-		Point result;
-		if (!GetCurve().DecodePoint(result, encoded, GetEncodedElementSize(true)))
-			throw DL_BadElement();
-		if (checkForGroupMembership && !ValidateElement(1, result, NULL))
-			throw DL_BadElement();
-		return result;
-	}
-	Integer ConvertElementToInteger(const Element &element) const;
-	Integer GetMaxExponent() const {return GetSubgroupOrder()-1;}
-	bool IsIdentity(const Element &element) const {return element.identity;}
-	void SimultaneousExponentiate(Element *results, const Element &base, const Integer *exponents, unsigned int exponentsCount) const;
-	static std::string CRYPTOPP_API StaticAlgorithmNamePrefix() {return "EC";}
-
-	// ASN1Key
-	OID GetAlgorithmID() const;
-
-	// used by MQV
-	Element MultiplyElements(const Element &a, const Element &b) const;
-	Element CascadeExponentiate(const Element &element1, const Integer &exponent1, const Element &element2, const Integer &exponent2) const;
-
-	// non-inherited
-
-	// enumerate OIDs for recommended parameters, use OID() to get first one
-	static OID CRYPTOPP_API GetNextRecommendedParametersOID(const OID &oid);
-
-	void BERDecode(BufferedTransformation &bt);
-	void DEREncode(BufferedTransformation &bt) const;
-
-	void SetPointCompression(bool compress) {m_compress = compress;}
-	bool GetPointCompression() const {return m_compress;}
-
-	void SetEncodeAsOID(bool encodeAsOID) {m_encodeAsOID = encodeAsOID;}
-	bool GetEncodeAsOID() const {return m_encodeAsOID;}
-
-	const EllipticCurve& GetCurve() const {return this->m_groupPrecomputation.GetCurve();}
-
-	bool operator==(const ThisClass &rhs) const
-		{return this->m_groupPrecomputation.GetCurve() == rhs.m_groupPrecomputation.GetCurve() && this->m_gpc.GetBase(this->m_groupPrecomputation) == rhs.m_gpc.GetBase(rhs.m_groupPrecomputation);}
-
-#ifdef CRYPTOPP_MAINTAIN_BACKWARDS_COMPATIBILITY
-	const Point& GetBasePoint() const {return GetSubgroupGenerator();}
-	const Integer& GetBasePointOrder() const {return GetSubgroupOrder();}
-	void LoadRecommendedParameters(const OID &oid) {Initialize(oid);}
-#endif
-
-protected:
-	unsigned int FieldElementLength() const {return GetCurve().GetField().MaxElementByteLength();}
-	unsigned int ExponentLength() const {return m_n.ByteCount();}
-
-	OID m_oid;			// set if parameters loaded from a recommended curve
-	Integer m_n;		// order of base point
-	bool m_compress, m_encodeAsOID;
-	mutable Integer m_k;		// cofactor
-};
-
-//! EC public key
-template <class EC>
-class DL_PublicKey_EC : public DL_PublicKeyImpl<DL_GroupParameters_EC<EC> >
-{
-public:
-	typedef typename EC::Point Element;
-
-	void Initialize(const DL_GroupParameters_EC<EC> &params, const Element &Q)
-		{this->AccessGroupParameters() = params; this->SetPublicElement(Q);}
-	void Initialize(const EC &ec, const Element &G, const Integer &n, const Element &Q)
-		{this->AccessGroupParameters().Initialize(ec, G, n); this->SetPublicElement(Q);}
-
-	// X509PublicKey
-	void BERDecodePublicKey(BufferedTransformation &bt, bool parametersPresent, size_t size);
-	void DEREncodePublicKey(BufferedTransformation &bt) const;
-};
-
-//! EC private key
-template <class EC>
-class DL_PrivateKey_EC : public DL_PrivateKeyImpl<DL_GroupParameters_EC<EC> >
-{
-public:
-	typedef typename EC::Point Element;
-
-	void Initialize(const DL_GroupParameters_EC<EC> &params, const Integer &x)
-		{this->AccessGroupParameters() = params; this->SetPrivateExponent(x);}
-	void Initialize(const EC &ec, const Element &G, const Integer &n, const Integer &x)
-		{this->AccessGroupParameters().Initialize(ec, G, n); this->SetPrivateExponent(x);}
-	void Initialize(RandomNumberGenerator &rng, const DL_GroupParameters_EC<EC> &params)
-		{this->GenerateRandom(rng, params);}
-	void Initialize(RandomNumberGenerator &rng, const EC &ec, const Element &G, const Integer &n)
-		{this->GenerateRandom(rng, DL_GroupParameters_EC<EC>(ec, G, n));}
-
-	// PKCS8PrivateKey
-	void BERDecodePrivateKey(BufferedTransformation &bt, bool parametersPresent, size_t size);
-	void DEREncodePrivateKey(BufferedTransformation &bt) const;
-};
-
-//! Elliptic Curve Diffie-Hellman, AKA <a href="http://www.weidai.com/scan-mirror/ka.html#ECDH">ECDH</a>
-template <class EC, class COFACTOR_OPTION = CPP_TYPENAME DL_GroupParameters_EC<EC>::DefaultCofactorOption>
-struct ECDH
-{
-	typedef DH_Domain<DL_GroupParameters_EC<EC>, COFACTOR_OPTION> Domain;
-};
-
-/// Elliptic Curve Menezes-Qu-Vanstone, AKA <a href="http://www.weidai.com/scan-mirror/ka.html#ECMQV">ECMQV</a>
-template <class EC, class COFACTOR_OPTION = CPP_TYPENAME DL_GroupParameters_EC<EC>::DefaultCofactorOption>
-struct ECMQV
-{
-	typedef MQV_Domain<DL_GroupParameters_EC<EC>, COFACTOR_OPTION> Domain;
-};
-
-//! EC keys
-template <class EC>
-struct DL_Keys_EC
-{
-	typedef DL_PublicKey_EC<EC> PublicKey;
-	typedef DL_PrivateKey_EC<EC> PrivateKey;
-};
-
-template <class EC, class H>
-struct ECDSA;
-
-//! ECDSA keys
-template <class EC>
-struct DL_Keys_ECDSA
-{
-	typedef DL_PublicKey_EC<EC> PublicKey;
-	typedef DL_PrivateKey_WithSignaturePairwiseConsistencyTest<DL_PrivateKey_EC<EC>, ECDSA<EC, SHA256> > PrivateKey;
-};
-
-//! ECDSA algorithm
-template <class EC>
-class DL_Algorithm_ECDSA : public DL_Algorithm_GDSA<typename EC::Point>
-{
-public:
-	static const char * CRYPTOPP_API StaticAlgorithmName() {return "ECDSA";}
-};
-
-//! ECNR algorithm
-template <class EC>
-class DL_Algorithm_ECNR : public DL_Algorithm_NR<typename EC::Point>
-{
-public:
-	static const char * CRYPTOPP_API StaticAlgorithmName() {return "ECNR";}
-};
-
-//! <a href="http://www.weidai.com/scan-mirror/sig.html#ECDSA">ECDSA</a>
-template <class EC, class H>
-struct ECDSA : public DL_SS<DL_Keys_ECDSA<EC>, DL_Algorithm_ECDSA<EC>, DL_SignatureMessageEncodingMethod_DSA, H>
-{
-};
-
-//! ECNR
-template <class EC, class H = SHA>
-struct ECNR : public DL_SS<DL_Keys_EC<EC>, DL_Algorithm_ECNR<EC>, DL_SignatureMessageEncodingMethod_NR, H>
-{
-};
-
-//! Elliptic Curve Integrated Encryption Scheme, AKA <a href="http://www.weidai.com/scan-mirror/ca.html#ECIES">ECIES</a>
-/*! Default to (NoCofactorMultiplication and DHAES_MODE = false) for compatibilty with SEC1 and Crypto++ 4.2.
-	The combination of (IncompatibleCofactorMultiplication and DHAES_MODE = true) is recommended for best
-	efficiency and security. */
-template <class EC, class COFACTOR_OPTION = NoCofactorMultiplication, bool DHAES_MODE = false>
-struct ECIES
-	: public DL_ES<
-		DL_Keys_EC<EC>,
-		DL_KeyAgreementAlgorithm_DH<typename EC::Point, COFACTOR_OPTION>,
-		DL_KeyDerivationAlgorithm_P1363<typename EC::Point, DHAES_MODE, P1363_KDF2<SHA1> >,
-		DL_EncryptionAlgorithm_Xor<HMAC<SHA1>, DHAES_MODE>,
-		ECIES<EC> >
-{
-	static std::string CRYPTOPP_API StaticAlgorithmName() {return "ECIES";}	// TODO: fix this after name is standardized
-};
-
-NAMESPACE_END
-
-#ifdef CRYPTOPP_MANUALLY_INSTANTIATE_TEMPLATES
-#include "eccrypto.cpp"
-#endif
-
-NAMESPACE_BEGIN(CryptoPP)
-
-CRYPTOPP_DLL_TEMPLATE_CLASS DL_GroupParameters_EC<ECP>;
-CRYPTOPP_DLL_TEMPLATE_CLASS DL_GroupParameters_EC<EC2N>;
-CRYPTOPP_DLL_TEMPLATE_CLASS DL_PublicKeyImpl<DL_GroupParameters_EC<ECP> >;
-CRYPTOPP_DLL_TEMPLATE_CLASS DL_PublicKeyImpl<DL_GroupParameters_EC<EC2N> >;
-CRYPTOPP_DLL_TEMPLATE_CLASS DL_PublicKey_EC<ECP>;
-CRYPTOPP_DLL_TEMPLATE_CLASS DL_PublicKey_EC<EC2N>;
-CRYPTOPP_DLL_TEMPLATE_CLASS DL_PrivateKeyImpl<DL_GroupParameters_EC<ECP> >;
-CRYPTOPP_DLL_TEMPLATE_CLASS DL_PrivateKeyImpl<DL_GroupParameters_EC<EC2N> >;
-CRYPTOPP_DLL_TEMPLATE_CLASS DL_PrivateKey_EC<ECP>;
-CRYPTOPP_DLL_TEMPLATE_CLASS DL_PrivateKey_EC<EC2N>;
-CRYPTOPP_DLL_TEMPLATE_CLASS DL_Algorithm_GDSA<ECP::Point>;
-CRYPTOPP_DLL_TEMPLATE_CLASS DL_Algorithm_GDSA<EC2N::Point>;
-CRYPTOPP_DLL_TEMPLATE_CLASS DL_PrivateKey_WithSignaturePairwiseConsistencyTest<DL_PrivateKey_EC<ECP>, ECDSA<ECP, SHA256> >;
-CRYPTOPP_DLL_TEMPLATE_CLASS DL_PrivateKey_WithSignaturePairwiseConsistencyTest<DL_PrivateKey_EC<EC2N>, ECDSA<EC2N, SHA256> >;
-
-NAMESPACE_END
-
-#endif