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Diffstat (limited to 'lib/cryptopp/luc.h')
| -rw-r--r-- | lib/cryptopp/luc.h | 236 |
1 files changed, 0 insertions, 236 deletions
diff --git a/lib/cryptopp/luc.h b/lib/cryptopp/luc.h deleted file mode 100644 index 730776d57..000000000 --- a/lib/cryptopp/luc.h +++ /dev/null @@ -1,236 +0,0 @@ -#ifndef CRYPTOPP_LUC_H -#define CRYPTOPP_LUC_H - -/** \file -*/ - -#include "pkcspad.h" -#include "oaep.h" -#include "integer.h" -#include "dh.h" - -#include <limits.h> - -NAMESPACE_BEGIN(CryptoPP) - -//! The LUC function. -/*! This class is here for historical and pedagogical interest. It has no - practical advantages over other trapdoor functions and probably shouldn't - be used in production software. The discrete log based LUC schemes - defined later in this .h file may be of more practical interest. -*/ -class LUCFunction : public TrapdoorFunction, public PublicKey -{ - typedef LUCFunction ThisClass; - -public: - void Initialize(const Integer &n, const Integer &e) - {m_n = n; m_e = e;} - - void BERDecode(BufferedTransformation &bt); - void DEREncode(BufferedTransformation &bt) const; - - Integer ApplyFunction(const Integer &x) const; - Integer PreimageBound() const {return m_n;} - Integer ImageBound() const {return m_n;} - - bool Validate(RandomNumberGenerator &rng, unsigned int level) const; - bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const; - void AssignFrom(const NameValuePairs &source); - - // non-derived interface - const Integer & GetModulus() const {return m_n;} - const Integer & GetPublicExponent() const {return m_e;} - - void SetModulus(const Integer &n) {m_n = n;} - void SetPublicExponent(const Integer &e) {m_e = e;} - -protected: - Integer m_n, m_e; -}; - -//! _ -class InvertibleLUCFunction : public LUCFunction, public TrapdoorFunctionInverse, public PrivateKey -{ - typedef InvertibleLUCFunction ThisClass; - -public: - void Initialize(RandomNumberGenerator &rng, unsigned int modulusBits, const Integer &eStart=17); - void Initialize(const Integer &n, const Integer &e, const Integer &p, const Integer &q, const Integer &u) - {m_n = n; m_e = e; m_p = p; m_q = q; m_u = u;} - - void BERDecode(BufferedTransformation &bt); - void DEREncode(BufferedTransformation &bt) const; - - Integer CalculateInverse(RandomNumberGenerator &rng, const Integer &x) const; - - bool Validate(RandomNumberGenerator &rng, unsigned int level) const; - bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const; - void AssignFrom(const NameValuePairs &source); - /*! parameters: (ModulusSize, PublicExponent (default 17)) */ - void GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &alg); - - // non-derived interface - const Integer& GetPrime1() const {return m_p;} - const Integer& GetPrime2() const {return m_q;} - const Integer& GetMultiplicativeInverseOfPrime2ModPrime1() const {return m_u;} - - void SetPrime1(const Integer &p) {m_p = p;} - void SetPrime2(const Integer &q) {m_q = q;} - void SetMultiplicativeInverseOfPrime2ModPrime1(const Integer &u) {m_u = u;} - -protected: - Integer m_p, m_q, m_u; -}; - -struct LUC -{ - static std::string StaticAlgorithmName() {return "LUC";} - typedef LUCFunction PublicKey; - typedef InvertibleLUCFunction PrivateKey; -}; - -//! LUC cryptosystem -template <class STANDARD> -struct LUCES : public TF_ES<STANDARD, LUC> -{ -}; - -//! LUC signature scheme with appendix -template <class STANDARD, class H> -struct LUCSS : public TF_SS<STANDARD, H, LUC> -{ -}; - -// analagous to the RSA schemes defined in PKCS #1 v2.0 -typedef LUCES<OAEP<SHA> >::Decryptor LUCES_OAEP_SHA_Decryptor; -typedef LUCES<OAEP<SHA> >::Encryptor LUCES_OAEP_SHA_Encryptor; - -typedef LUCSS<PKCS1v15, SHA>::Signer LUCSSA_PKCS1v15_SHA_Signer; -typedef LUCSS<PKCS1v15, SHA>::Verifier LUCSSA_PKCS1v15_SHA_Verifier; - -// ******************************************************** - -// no actual precomputation -class DL_GroupPrecomputation_LUC : public DL_GroupPrecomputation<Integer> -{ -public: - const AbstractGroup<Element> & GetGroup() const {assert(false); throw 0;} - Element BERDecodeElement(BufferedTransformation &bt) const {return Integer(bt);} - void DEREncodeElement(BufferedTransformation &bt, const Element &v) const {v.DEREncode(bt);} - - // non-inherited - void SetModulus(const Integer &v) {m_p = v;} - const Integer & GetModulus() const {return m_p;} - -private: - Integer m_p; -}; - -//! _ -class DL_BasePrecomputation_LUC : public DL_FixedBasePrecomputation<Integer> -{ -public: - // DL_FixedBasePrecomputation - bool IsInitialized() const {return m_g.NotZero();} - void SetBase(const DL_GroupPrecomputation<Element> &group, const Integer &base) {m_g = base;} - const Integer & GetBase(const DL_GroupPrecomputation<Element> &group) const {return m_g;} - void Precompute(const DL_GroupPrecomputation<Element> &group, unsigned int maxExpBits, unsigned int storage) {} - void Load(const DL_GroupPrecomputation<Element> &group, BufferedTransformation &storedPrecomputation) {} - void Save(const DL_GroupPrecomputation<Element> &group, BufferedTransformation &storedPrecomputation) const {} - Integer Exponentiate(const DL_GroupPrecomputation<Element> &group, const Integer &exponent) const; - Integer CascadeExponentiate(const DL_GroupPrecomputation<Element> &group, const Integer &exponent, const DL_FixedBasePrecomputation<Integer> &pc2, const Integer &exponent2) const - {throw NotImplemented("DL_BasePrecomputation_LUC: CascadeExponentiate not implemented");} // shouldn't be called - -private: - Integer m_g; -}; - -//! _ -class DL_GroupParameters_LUC : public DL_GroupParameters_IntegerBasedImpl<DL_GroupPrecomputation_LUC, DL_BasePrecomputation_LUC> -{ -public: - // DL_GroupParameters - bool IsIdentity(const Integer &element) const {return element == Integer::Two();} - void SimultaneousExponentiate(Element *results, const Element &base, const Integer *exponents, unsigned int exponentsCount) const; - Element MultiplyElements(const Element &a, const Element &b) const - {throw NotImplemented("LUC_GroupParameters: MultiplyElements can not be implemented");} - Element CascadeExponentiate(const Element &element1, const Integer &exponent1, const Element &element2, const Integer &exponent2) const - {throw NotImplemented("LUC_GroupParameters: MultiplyElements can not be implemented");} - - // NameValuePairs interface - bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const - { - return GetValueHelper<DL_GroupParameters_IntegerBased>(this, name, valueType, pValue).Assignable(); - } - -private: - int GetFieldType() const {return 2;} -}; - -//! _ -class DL_GroupParameters_LUC_DefaultSafePrime : public DL_GroupParameters_LUC -{ -public: - typedef NoCofactorMultiplication DefaultCofactorOption; - -protected: - unsigned int GetDefaultSubgroupOrderSize(unsigned int modulusSize) const {return modulusSize-1;} -}; - -//! _ -class DL_Algorithm_LUC_HMP : public DL_ElgamalLikeSignatureAlgorithm<Integer> -{ -public: - static const char * StaticAlgorithmName() {return "LUC-HMP";} - - void Sign(const DL_GroupParameters<Integer> ¶ms, const Integer &x, const Integer &k, const Integer &e, Integer &r, Integer &s) const; - bool Verify(const DL_GroupParameters<Integer> ¶ms, const DL_PublicKey<Integer> &publicKey, const Integer &e, const Integer &r, const Integer &s) const; - - size_t RLen(const DL_GroupParameters<Integer> ¶ms) const - {return params.GetGroupOrder().ByteCount();} -}; - -//! _ -struct DL_SignatureKeys_LUC -{ - typedef DL_GroupParameters_LUC GroupParameters; - typedef DL_PublicKey_GFP<GroupParameters> PublicKey; - typedef DL_PrivateKey_GFP<GroupParameters> PrivateKey; -}; - -//! LUC-HMP, based on "Digital signature schemes based on Lucas functions" by Patrick Horster, Markus Michels, Holger Petersen -template <class H> -struct LUC_HMP : public DL_SS<DL_SignatureKeys_LUC, DL_Algorithm_LUC_HMP, DL_SignatureMessageEncodingMethod_DSA, H> -{ -}; - -//! _ -struct DL_CryptoKeys_LUC -{ - typedef DL_GroupParameters_LUC_DefaultSafePrime GroupParameters; - typedef DL_PublicKey_GFP<GroupParameters> PublicKey; - typedef DL_PrivateKey_GFP<GroupParameters> PrivateKey; -}; - -//! LUC-IES -template <class COFACTOR_OPTION = NoCofactorMultiplication, bool DHAES_MODE = true> -struct LUC_IES - : public DL_ES< - DL_CryptoKeys_LUC, - DL_KeyAgreementAlgorithm_DH<Integer, COFACTOR_OPTION>, - DL_KeyDerivationAlgorithm_P1363<Integer, DHAES_MODE, P1363_KDF2<SHA1> >, - DL_EncryptionAlgorithm_Xor<HMAC<SHA1>, DHAES_MODE>, - LUC_IES<> > -{ - static std::string StaticAlgorithmName() {return "LUC-IES";} // non-standard name -}; - -// ******************************************************** - -//! LUC-DH -typedef DH_Domain<DL_GroupParameters_LUC_DefaultSafePrime> LUC_DH; - -NAMESPACE_END - -#endif |