Crypto++
8.9
Free C++ class library of cryptographic schemes
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Base implementation of Discrete Log (DL) group parameters. More...
Public Types | |
typedef GROUP_PRECOMP | GroupPrecomputation |
typedef GROUP_PRECOMP::Element | Element |
typedef BASE_PRECOMP | BasePrecomputation |
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typedef typename GROUP_PRECOMP::Element | Element |
Public Member Functions | |
const DL_GroupPrecomputation< Element > & | GetGroupPrecomputation () const |
Retrieves the group precomputation. More... | |
const DL_FixedBasePrecomputation< Element > & | GetBasePrecomputation () const |
Retrieves the group precomputation. More... | |
DL_FixedBasePrecomputation< Element > & | AccessBasePrecomputation () |
Retrieves the group precomputation. More... | |
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bool | Validate (RandomNumberGenerator &rng, unsigned int level) const |
Check this object for errors. More... | |
bool | GetVoidValue (const char *name, const std::type_info &valueType, void *pValue) const |
Get a named value. More... | |
bool | SupportsPrecomputation () const |
Determines whether the object supports precomputation. More... | |
void | Precompute (unsigned int precomputationStorage=16) |
Perform precomputation. More... | |
void | LoadPrecomputation (BufferedTransformation &storedPrecomputation) |
Retrieve previously saved precomputation. More... | |
void | SavePrecomputation (BufferedTransformation &storedPrecomputation) const |
Save precomputation for later use. More... | |
virtual const Element & | GetSubgroupGenerator () const |
Retrieves the subgroup generator. More... | |
virtual void | SetSubgroupGenerator (const Element &base) |
Sets the subgroup generator. More... | |
virtual Element | ExponentiateBase (const Integer &exponent) const |
Exponentiates the base. More... | |
virtual Element | ExponentiateElement (const Element &base, const Integer &exponent) const |
Exponentiates an element. More... | |
virtual const Integer & | GetSubgroupOrder () const=0 |
Retrieves the subgroup order. More... | |
virtual Integer | GetMaxExponent () const=0 |
Retrieves the maximum exponent for the group. More... | |
virtual Integer | GetGroupOrder () const |
Retrieves the order of the group. More... | |
virtual Integer | GetCofactor () const |
Retrieves the cofactor. More... | |
virtual unsigned int | GetEncodedElementSize (bool reversible) const=0 |
Retrieves the encoded element's size. More... | |
virtual void | EncodeElement (bool reversible, const Element &element, byte *encoded) const=0 |
Encodes the element. More... | |
virtual Element | DecodeElement (const byte *encoded, bool checkForGroupMembership) const=0 |
Decodes the element. More... | |
virtual Integer | ConvertElementToInteger (const Element &element) const=0 |
Converts an element to an Integer. More... | |
virtual bool | ValidateGroup (RandomNumberGenerator &rng, unsigned int level) const=0 |
Check the group for errors. More... | |
virtual bool | ValidateElement (unsigned int level, const Element &element, const DL_FixedBasePrecomputation< Element > *precomp) const=0 |
Check the element for errors. More... | |
virtual bool | FastSubgroupCheckAvailable () const=0 |
virtual bool | IsIdentity (const Element &element) const=0 |
Determines if an element is an identity. More... | |
virtual void | SimultaneousExponentiate (Element *results, const Element &base, const Integer *exponents, unsigned int exponentsCount) const=0 |
Exponentiates a base to multiple exponents. More... | |
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virtual void | GenerateRandom (RandomNumberGenerator &rng, const NameValuePairs ¶ms=g_nullNameValuePairs) |
Generate a random key or crypto parameters. More... | |
void | GenerateRandomWithKeySize (RandomNumberGenerator &rng, unsigned int keySize) |
Generate a random key or crypto parameters. More... | |
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virtual void | AssignFrom (const NameValuePairs &source)=0 |
Assign values to this object. More... | |
virtual void | ThrowIfInvalid (RandomNumberGenerator &rng, unsigned int level) const |
Check this object for errors. More... | |
virtual void | Save (BufferedTransformation &bt) const |
Saves a key to a BufferedTransformation. More... | |
virtual void | Load (BufferedTransformation &bt) |
Loads a key from a BufferedTransformation. More... | |
void | DoQuickSanityCheck () const |
Perform a quick sanity check. More... | |
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template<class T > | |
bool | GetThisObject (T &object) const |
Get a copy of this object or subobject. More... | |
template<class T > | |
bool | GetThisPointer (T *&ptr) const |
Get a pointer to this object. More... | |
template<class T > | |
bool | GetValue (const char *name, T &value) const |
Get a named value. More... | |
template<class T > | |
T | GetValueWithDefault (const char *name, T defaultValue) const |
Get a named value. More... | |
CRYPTOPP_DLL std::string | GetValueNames () const |
Get a list of value names that can be retrieved. More... | |
CRYPTOPP_DLL bool | GetIntValue (const char *name, int &value) const |
Get a named value with type int. More... | |
CRYPTOPP_DLL int | GetIntValueWithDefault (const char *name, int defaultValue) const |
Get a named value with type int, with default. More... | |
CRYPTOPP_DLL bool | GetWord64Value (const char *name, word64 &value) const |
Get a named value with type word64. More... | |
CRYPTOPP_DLL word64 | GetWord64ValueWithDefault (const char *name, word64 defaultValue) const |
Get a named value with type word64, with default. More... | |
template<class T > | |
void | GetRequiredParameter (const char *className, const char *name, T &value) const |
Retrieves a required name/value pair. More... | |
CRYPTOPP_DLL void | GetRequiredIntParameter (const char *className, const char *name, int &value) const |
Retrieves a required name/value pair. More... | |
Additional Inherited Members | |
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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. More... | |
Base implementation of Discrete Log (DL) group parameters.
GROUP_PRECOMP | group precomputation class |
BASE_PRECOMP | fixed base precomputation class |
BASE | class or type of an element |
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inlinevirtual |
Retrieves the group precomputation.
Implements DL_GroupParameters< typename GROUP_PRECOMP::Element >.
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inlinevirtual |
Retrieves the group precomputation.
Implements DL_GroupParameters< typename GROUP_PRECOMP::Element >.
Reimplemented in DL_GroupParameters_IntegerBasedImpl< DL_GroupPrecomputation_LUC, DL_BasePrecomputation_LUC >, and DL_GroupParameters_IntegerBasedImpl< ModExpPrecomputation >.
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inlinevirtual |
Retrieves the group precomputation.
Implements DL_GroupParameters< typename GROUP_PRECOMP::Element >.
Reimplemented in DL_GroupParameters_IntegerBasedImpl< DL_GroupPrecomputation_LUC, DL_BasePrecomputation_LUC >, and DL_GroupParameters_IntegerBasedImpl< ModExpPrecomputation >.