#include <eccrypto.h>
Inheritance diagram for DL_GroupParameters_EC< EC >:
This class corresponds to the ASN.1 sequence of the same name in ANSI X9.62 (also SEC 1).
Definition at line 25 of file eccrypto.h.
Public Types | |
| typedef EC | EllipticCurve |
| typedef EllipticCurve::Point | Point |
| typedef Point | Element |
| typedef IncompatibleCofactorMultiplication | DefaultCofactorOption |
| typedef EcPrecomputation< EC > | GroupPrecomputation |
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typedef DL_FixedBasePrecomputationImpl< typenameEcPrecomputation< EC >::Element > | BasePrecomputation |
Public Member Functions | |
| DL_GroupParameters_EC (const OID &oid) | |
| DL_GroupParameters_EC (const EllipticCurve &ec, const Point &G, const Integer &n, const Integer &k=Integer::Zero()) | |
| DL_GroupParameters_EC (BufferedTransformation &bt) | |
| void | Initialize (const EllipticCurve &ec, const Point &G, const Integer &n, const Integer &k=Integer::Zero()) |
| void | Initialize (const OID &oid) |
| bool | GetVoidValue (const char *name, const std::type_info &valueType, void *pValue) const |
| to be implemented by derived classes, users should use one of the above functions instead | |
| void | AssignFrom (const NameValuePairs &source) |
| assign values from source to this object | |
| void | GenerateRandom (RandomNumberGenerator &rng, const NameValuePairs &alg) |
| this implementation doesn't actually generate a curve, it just initializes the parameters with existing values | |
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const DL_FixedBasePrecomputation< Element > & | GetBasePrecomputation () const |
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DL_FixedBasePrecomputation< Element > & | AccessBasePrecomputation () |
| const Integer & | GetSubgroupOrder () const |
| 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 |
| void | EncodeElement (bool reversible, const Element &element, byte *encoded) const |
| unsigned int | GetEncodedElementSize (bool reversible) const |
| Element | DecodeElement (const byte *encoded, bool checkForGroupMembership) const |
| Integer | ConvertElementToInteger (const Element &element) const |
| Integer | GetMaxExponent () const |
| bool | IsIdentity (const Element &element) const |
| void | SimultaneousExponentiate (Element *results, const Element &base, const Integer *exponents, unsigned int exponentsCount) const |
| OID | GetAlgorithmID () const |
| Element | MultiplyElements (const Element &a, const Element &b) const |
| Element | CascadeExponentiate (const Element &element1, const Integer &exponent1, const Element &element2, const Integer &exponent2) const |
| void | BERDecode (BufferedTransformation &bt) |
| void | DEREncode (BufferedTransformation &bt) const |
| void | SetPointCompression (bool compress) |
| bool | GetPointCompression () const |
| void | SetEncodeAsOID (bool encodeAsOID) |
| bool | GetEncodeAsOID () const |
| const EllipticCurve & | GetCurve () const |
| bool | operator== (const ThisClass &rhs) const |
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const DL_GroupPrecomputation< Element > & | GetGroupPrecomputation () const |
| bool | Validate (RandomNumberGenerator &rng, unsigned int level) const |
| check this object for errors | |
| bool | SupportsPrecomputation () const |
| whether this object supports precomputation | |
| void | Precompute (unsigned int precomputationStorage=16) |
| do precomputation | |
| void | LoadPrecomputation (BufferedTransformation &storedPrecomputation) |
| retrieve previously saved precomputation | |
| void | SavePrecomputation (BufferedTransformation &storedPrecomputation) const |
| save precomputation for later use | |
| virtual const Element & | GetSubgroupGenerator () const |
| virtual void | SetSubgroupGenerator (const Element &base) |
| virtual Element | ExponentiateBase (const Integer &exponent) const |
| virtual Element | ExponentiateElement (const Element &base, const Integer &exponent) const |
| virtual Integer | GetGroupOrder () const |
| void | GenerateRandomWithKeySize (RandomNumberGenerator &rng, unsigned int keySize) |
| calls the above function with a NameValuePairs object that just specifies "KeySize" | |
| virtual void | ThrowIfInvalid (RandomNumberGenerator &rng, unsigned int level) const |
| throws InvalidMaterial if this object fails Validate() test | |
| virtual void | Save (BufferedTransformation &bt) const |
| save key into a BufferedTransformation | |
| virtual void | Load (BufferedTransformation &bt) |
| load key from a BufferedTransformation | |
| void | DoQuickSanityCheck () const |
| template<class T> bool | GetThisObject (T &object) const |
| get a copy of this object or a subobject of it | |
| template<class T> bool | GetThisPointer (T *&p) const |
| get a pointer to this object, as a pointer to T | |
| template<class T> bool | GetValue (const char *name, T &value) const |
| get a named value, returns true if the name exists | |
| template<class T> T | GetValueWithDefault (const char *name, T defaultValue) const |
| get a named value, returns the default if the name doesn't exist | |
| std::string | GetValueNames () const |
| get a list of value names that can be retrieved | |
| bool | GetIntValue (const char *name, int &value) const |
| get a named value with type int | |
| int | GetIntValueWithDefault (const char *name, int defaultValue) const |
| get a named value with type int, with default | |
| template<class T> void | GetRequiredParameter (const char *className, const char *name, T &value) const |
| void | GetRequiredIntParameter (const char *className, const char *name, int &value) const |
Static Public Member Functions | |
| std::string | StaticAlgorithmNamePrefix () |
| OID | GetNextRecommendedParametersOID (const OID &oid) |
| void | ThrowIfTypeMismatch (const char *name, const std::type_info &stored, const std::type_info &retrieving) |
| used by derived classes to check for type mismatch | |
Protected Member Functions | |
| unsigned int | FieldElementLength () const |
| unsigned int | ExponentLength () const |
| void | ParametersChanged () |
Protected Attributes | |
| OID | m_oid |
| Integer | m_n |
| bool | m_compress |
| bool | m_encodeAsOID |
| Integer | m_k |
| EcPrecomputation< EC > | m_groupPrecomputation |
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DL_FixedBasePrecomputationImpl< typenameEcPrecomputation< EC >::Element > | m_gpc |
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assign values from source to this object
Implements CryptoMaterial. Definition at line 409 of file eccrypto.cpp. References NameValuePairs::GetRequiredParameter(), NameValuePairs::GetValue(), and NameValuePairs::GetValueWithDefault(). Referenced by DL_GroupParameters_EC< EC >::GenerateRandom(). |
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this implementation doesn't actually generate a curve, it just initializes the parameters with existing values parameters: (Curve, SubgroupGenerator, SubgroupOrder, Cofactor (optional)), or (GroupOID) Reimplemented from GeneratableCryptoMaterial. Definition at line 430 of file eccrypto.cpp. References DL_GroupParameters_EC< EC >::AssignFrom(). |
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check this object for errors
Implements CryptoMaterial. |
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do precomputation The exact semantics of Precompute() is varies, but typically it means calculate a table of n objects that can be used later to speed up computation. Reimplemented from CryptoMaterial. |
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load key from a BufferedTransformation
Reimplemented in ASN1CryptoMaterial. Definition at line 994 of file cryptlib.h. |
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get a named value with type int used to ensure we don't accidentally try to get an unsigned int or some other type when we mean int (which is the most common case) Definition at line 278 of file cryptlib.h. Referenced by InvertibleRWFunction::GenerateRandom(), InvertibleRSAFunction::GenerateRandom(), InvertibleRabinFunction::GenerateRandom(), InvertibleLUCFunction::GenerateRandom(), DL_GroupParameters_IntegerBased::GenerateRandom(), DL_GroupParameters_DSA::GenerateRandom(), and InvertibleESIGNFunction::GenerateRandom(). |
1.3.7-20040704