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author | Jeffrey Walton <noloader@gmail.com> | 2015-11-05 01:59:46 -0500 |
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committer | Jeffrey Walton <noloader@gmail.com> | 2015-11-05 01:59:46 -0500 |
commit | 48809d4e85c125814425c621d8d0d89f95405924 (patch) | |
tree | 1010fd16c4b1199f3d27dd726dda241a2bd29f83 /rw.h | |
parent | 025337a94aceb75d188149db70c2094673772816 (diff) | |
download | cryptopp-git-48809d4e85c125814425c621d8d0d89f95405924.tar.gz |
CRYPTOPP 5.6.3 RC6 checkin
Diffstat (limited to 'rw.h')
-rw-r--r-- | rw.h | 222 |
1 files changed, 104 insertions, 118 deletions
@@ -1,118 +1,104 @@ -#ifndef CRYPTOPP_RW_H -#define CRYPTOPP_RW_H - -/** \file - This file contains classes that implement the - Rabin-Williams signature schemes as defined in IEEE P1363. -*/ - -#include "cryptlib.h" -#include "integer.h" -#include "pubkey.h" - -NAMESPACE_BEGIN(CryptoPP) - -//! _ -class CRYPTOPP_DLL RWFunction : public TrapdoorFunction, public PublicKey -{ - typedef RWFunction ThisClass; - -public: - void Initialize(const Integer &n) - {m_n = n;} - - void BERDecode(BufferedTransformation &bt); - void DEREncode(BufferedTransformation &bt) const; - - void Save(BufferedTransformation &bt) const - {DEREncode(bt);} - void Load(BufferedTransformation &bt) - {BERDecode(bt);} - - Integer ApplyFunction(const Integer &x) const; - Integer PreimageBound() const {return ++(m_n>>1);} - 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); - - const Integer& GetModulus() const {return m_n;} - void SetModulus(const Integer &n) {m_n = n;} - -protected: - Integer m_n; -}; - -//! _ -class CRYPTOPP_DLL InvertibleRWFunction : public RWFunction, public TrapdoorFunctionInverse, public PrivateKey -{ - typedef InvertibleRWFunction ThisClass; - -public: - InvertibleRWFunction() : m_precompute(false) {} - - void Initialize(const Integer &n, const Integer &p, const Integer &q, const Integer &u); - // generate a random private key - void Initialize(RandomNumberGenerator &rng, unsigned int modulusBits) - {GenerateRandomWithKeySize(rng, modulusBits);} - - void BERDecode(BufferedTransformation &bt); - void DEREncode(BufferedTransformation &bt) const; - - void Save(BufferedTransformation &bt) const - {DEREncode(bt);} - void Load(BufferedTransformation &bt) - {BERDecode(bt);} - - Integer CalculateInverse(RandomNumberGenerator &rng, const Integer &x) const; - - // GeneratibleCryptoMaterial - 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) */ - void GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &alg); - - 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;} - - virtual bool SupportsPrecomputation() const {return true;} - virtual void Precompute(unsigned int unused = 0) {PrecomputeTweakedRoots();} - virtual void Precompute(unsigned int unused = 0) const {PrecomputeTweakedRoots();} - - virtual void LoadPrecomputation(BufferedTransformation &storedPrecomputation); - virtual void SavePrecomputation(BufferedTransformation &storedPrecomputation) const; - -protected: - void PrecomputeTweakedRoots() const; - -protected: - Integer m_p, m_q, m_u; - - mutable Integer m_pre_2_9p, m_pre_2_3q, m_pre_q_p; - mutable bool m_precompute; -}; - -//! RW -struct RW -{ - static std::string StaticAlgorithmName() {return "RW";} - typedef RWFunction PublicKey; - typedef InvertibleRWFunction PrivateKey; -}; - -//! RWSS -template <class STANDARD, class H> -struct RWSS : public TF_SS<STANDARD, H, RW> -{ -}; - -NAMESPACE_END - -#endif +#ifndef CRYPTOPP_RW_H
+#define CRYPTOPP_RW_H
+
+/** \file
+ This file contains classes that implement the
+ Rabin-Williams signature schemes as defined in IEEE P1363.
+*/
+
+#include "cryptlib.h"
+#include "pubkey.h"
+#include "integer.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+//! _
+class CRYPTOPP_DLL RWFunction : public TrapdoorFunction, public PublicKey
+{
+ typedef RWFunction ThisClass;
+
+public:
+ void Initialize(const Integer &n)
+ {m_n = n;}
+
+ void BERDecode(BufferedTransformation &bt);
+ void DEREncode(BufferedTransformation &bt) const;
+
+ void Save(BufferedTransformation &bt) const
+ {DEREncode(bt);}
+ void Load(BufferedTransformation &bt)
+ {BERDecode(bt);}
+
+ Integer ApplyFunction(const Integer &x) const;
+ Integer PreimageBound() const {return ++(m_n>>1);}
+ 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);
+
+ const Integer& GetModulus() const {return m_n;}
+ void SetModulus(const Integer &n) {m_n = n;}
+
+protected:
+ Integer m_n;
+};
+
+//! _
+class CRYPTOPP_DLL InvertibleRWFunction : public RWFunction, public TrapdoorFunctionInverse, public PrivateKey
+{
+ typedef InvertibleRWFunction ThisClass;
+
+public:
+ void Initialize(const Integer &n, const Integer &p, const Integer &q, const Integer &u)
+ {m_n = n; m_p = p; m_q = q; m_u = u;}
+ // generate a random private key
+ void Initialize(RandomNumberGenerator &rng, unsigned int modulusBits)
+ {GenerateRandomWithKeySize(rng, modulusBits);}
+
+ void BERDecode(BufferedTransformation &bt);
+ void DEREncode(BufferedTransformation &bt) const;
+
+ void Save(BufferedTransformation &bt) const
+ {DEREncode(bt);}
+ void Load(BufferedTransformation &bt)
+ {BERDecode(bt);}
+
+ Integer CalculateInverse(RandomNumberGenerator &rng, const Integer &x) const;
+
+ // GeneratibleCryptoMaterial
+ 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) */
+ void GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &alg);
+
+ 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;
+};
+
+//! RW
+struct RW
+{
+ static std::string StaticAlgorithmName() {return "RW";}
+ typedef RWFunction PublicKey;
+ typedef InvertibleRWFunction PrivateKey;
+};
+
+//! RWSS
+template <class STANDARD, class H>
+struct RWSS : public TF_SS<STANDARD, H, RW>
+{
+};
+
+NAMESPACE_END
+
+#endif
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