ElGamal encryption for safe interop. More...
#include <gfpcrypt.h>
Inheritance diagram for DL_GroupParameters_ElGamal:
Public Types | |
| typedef NoCofactorMultiplication | DefaultCofactorOption |
| Public Types inherited from DL_GroupParameters_GFP_DefaultSafePrime | |
| typedef NoCofactorMultiplication | DefaultCofactorOption |
| Public Types inherited from DL_GroupParameters_IntegerBasedImpl< ModExpPrecomputation > | |
| typedef GROUP_PRECOMP::Element | Element |
| Public Types inherited from DL_GroupParametersImpl< GROUP_PRECOMP, BASE_PRECOMP, BASE > | |
| typedef GROUP_PRECOMP | GroupPrecomputation |
| typedef GROUP_PRECOMP::Element | Element |
| typedef BASE_PRECOMP | BasePrecomputation |
| Public Types inherited from DL_GroupParameters< T > | |
| typedef T | Element |
Public Member Functions | |
| Integer | GetMaxExponent () const |
| Retrieves the maximum exponent for the group. | |
| Public Member Functions inherited from DL_GroupParameters_GFP | |
| bool | IsIdentity (const Integer &element) const |
| Determines if an element is an identity. | |
| void | SimultaneousExponentiate (Element *results, const Element &base, const Integer *exponents, unsigned int exponentsCount) const |
| Exponentiates a base to multiple exponents. | |
| bool | GetVoidValue (const char *name, const std::type_info &valueType, void *pValue) const |
| Get a named value. | |
| Element | MultiplyElements (const Element &a, const Element &b) const |
| Element | CascadeExponentiate (const Element &element1, const Integer &exponent1, const Element &element2, const Integer &exponent2) const |
| Public Member Functions inherited from DL_GroupParameters_IntegerBasedImpl< ModExpPrecomputation > | |
| bool | GetVoidValue (const char *name, const std::type_info &valueType, void *pValue) const |
| Get a named value. | |
| void | AssignFrom (const NameValuePairs &source) |
| Assign values to this object. | |
| const DL_FixedBasePrecomputation< Element > & | GetBasePrecomputation () const |
| Retrieves the group precomputation. | |
| DL_FixedBasePrecomputation< Element > & | AccessBasePrecomputation () |
| Retrieves the group precomputation. | |
| const Integer & | GetModulus () const |
| Retrieve the modulus for the group. | |
| const Integer & | GetGenerator () const |
| Retrieves a reference to the group generator. | |
| void | SetModulusAndSubgroupGenerator (const Integer &p, const Integer &g) |
| bool | operator== (const DL_GroupParameters_IntegerBasedImpl< ModExpPrecomputation, DL_FixedBasePrecomputationImpl< typename GROUP_PRECOMP::Element > > &rhs) const |
| bool | operator!= (const DL_GroupParameters_IntegerBasedImpl< ModExpPrecomputation, DL_FixedBasePrecomputationImpl< typename GROUP_PRECOMP::Element > > &rhs) const |
| Public Member Functions inherited from DL_GroupParametersImpl< GROUP_PRECOMP, BASE_PRECOMP, BASE > | |
| const DL_GroupPrecomputation< Element > & | GetGroupPrecomputation () const |
| Retrieves the group precomputation. | |
| const DL_FixedBasePrecomputation< Element > & | GetBasePrecomputation () const |
| Retrieves the group precomputation. | |
| DL_FixedBasePrecomputation< Element > & | AccessBasePrecomputation () |
| Retrieves the group precomputation. | |
| Public Member Functions inherited from DL_GroupParameters< T > | |
| bool | Validate (RandomNumberGenerator &rng, unsigned int level) const |
| Check this object for errors. | |
| bool | SupportsPrecomputation () const |
| Determines whether the object supports precomputation. | |
| void | Precompute (unsigned int precomputationStorage=16) |
| Perform precomputation. | |
| void | LoadPrecomputation (BufferedTransformation &storedPrecomputation) |
| Retrieve previously saved precomputation. | |
| void | SavePrecomputation (BufferedTransformation &storedPrecomputation) const |
| Save precomputation for later use. | |
| virtual const Element & | GetSubgroupGenerator () const |
| Retrieves the subgroup generator. | |
| virtual void | SetSubgroupGenerator (const Element &base) |
| Sets the subgroup generator. | |
| virtual Element | ExponentiateBase (const Integer &exponent) const |
| Exponentiates the base. | |
| virtual Element | ExponentiateElement (const Element &base, const Integer &exponent) const |
| Exponentiates an element. | |
| virtual const Integer & | GetSubgroupOrder () const =0 |
| Retrieves the subgroup order. | |
| virtual Integer | GetGroupOrder () const |
| Retrieves the order of the group. | |
| virtual Integer | GetCofactor () const |
| Retrieves the cofactor. | |
| virtual unsigned int | GetEncodedElementSize (bool reversible) const =0 |
| Retrieves the encoded element's size. | |
| virtual void | EncodeElement (bool reversible, const Element &element, byte *encoded) const =0 |
| Encodes the element. | |
| virtual Element | DecodeElement (const byte *encoded, bool checkForGroupMembership) const =0 |
| Decodes the element. | |
| virtual Integer | ConvertElementToInteger (const Element &element) const =0 |
| Converts an element to an Integer. | |
| virtual bool | ValidateGroup (RandomNumberGenerator &rng, unsigned int level) const =0 |
| Check the group for errors. | |
| virtual bool | ValidateElement (unsigned int level, const Element &element, const DL_FixedBasePrecomputation< Element > *precomp) const =0 |
| Check the element for errors. | |
| virtual bool | FastSubgroupCheckAvailable () const =0 |
| virtual bool | IsIdentity (const Element &element) const =0 |
| Determines if an element is an identity. | |
| virtual void | SimultaneousExponentiate (Element *results, const Element &base, const Integer *exponents, unsigned int exponentsCount) const =0 |
| Exponentiates a base to multiple exponents. | |
| Public Member Functions inherited from GeneratableCryptoMaterial | |
| virtual void | GenerateRandom (RandomNumberGenerator &rng, const NameValuePairs ¶ms=g_nullNameValuePairs) |
| Generate a random key or crypto parameters. | |
| void | GenerateRandomWithKeySize (RandomNumberGenerator &rng, unsigned int keySize) |
| Generate a random key or crypto parameters. | |
| Public Member Functions inherited from CryptoMaterial | |
| virtual void | ThrowIfInvalid (RandomNumberGenerator &rng, unsigned int level) const |
| Check this object for errors. | |
| virtual void | Save (BufferedTransformation &bt) const |
| Saves a key to a BufferedTransformation. | |
| virtual void | Load (BufferedTransformation &bt) |
| Loads a key from a BufferedTransformation. | |
| void | DoQuickSanityCheck () const |
| Perform a quick sanity check. | |
| Public Member Functions inherited from NameValuePairs | |
| template<class T > | |
| bool | GetThisObject (T &object) const |
| Get a copy of this object or subobject. | |
| template<class T > | |
| bool | GetThisPointer (T *&ptr) const |
| Get a pointer to this object. | |
| template<class T > | |
| bool | GetValue (const char *name, T &value) const |
| Get a named value. | |
| template<class T > | |
| T | GetValueWithDefault (const char *name, T defaultValue) const |
| Get a named value. | |
| CRYPTOPP_DLL std::string | GetValueNames () const |
| Get a list of value names that can be retrieved. | |
| CRYPTOPP_DLL bool | GetIntValue (const char *name, int &value) const |
| Get a named value with type int. | |
| CRYPTOPP_DLL int | GetIntValueWithDefault (const char *name, int defaultValue) const |
| Get a named value with type int, with default. | |
| CRYPTOPP_DLL bool | GetWord64Value (const char *name, word64 &value) const |
| Get a named value with type word64. | |
| CRYPTOPP_DLL word64 | GetWord64ValueWithDefault (const char *name, word64 defaultValue) const |
| Get a named value with type word64, with default. | |
| template<class T > | |
| void | GetRequiredParameter (const char *className, const char *name, T &value) const |
| Retrieves a required name/value pair. | |
| CRYPTOPP_DLL void | GetRequiredIntParameter (const char *className, const char *name, int &value) const |
| Retrieves a required name/value pair. | |
Additional Inherited Members | |
| Static Public Member Functions inherited from NameValuePairs | |
| static CRYPTOPP_DLL void | ThrowIfTypeMismatch (const char *name, const std::type_info &stored, const std::type_info &retrieving) |
| Ensures an expected name and type is present. | |
Detailed Description
Member Typedef Documentation
◆ DefaultCofactorOption
Definition at line 294 of file gfpcrypt.h.
Constructor & Destructor Documentation
◆ ~DL_GroupParameters_ElGamal()
|
inlinevirtual |
Definition at line 296 of file gfpcrypt.h.
Member Function Documentation
◆ GetMaxExponent()
|
inlinevirtual |
Retrieves the maximum exponent for the group.
- Returns
- the maximum exponent for the group
Implements DL_GroupParameters< T >.
Definition at line 298 of file gfpcrypt.h.
The documentation for this class was generated from the following file:
