Crypto++
Public Member Functions | Static Public Member Functions | Protected Member Functions | Protected Attributes
InvertibleESIGNFunction Class Reference

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#include <esign.h>

Inheritance diagram for InvertibleESIGNFunction:
ESIGNFunction RandomizedTrapdoorFunctionInverse PrivateKey TrapdoorFunction ASN1CryptoMaterial< PublicKey > GeneratableCryptoMaterial RandomizedTrapdoorFunction CryptoMaterial TrapdoorFunctionBounds NameValuePairs

List of all members.

Public Member Functions

void Initialize (const Integer &n, const Integer &e, const Integer &p, const Integer &q)
void Initialize (RandomNumberGenerator &rng, unsigned int modulusBits)
void BERDecode (BufferedTransformation &bt)
void DEREncode (BufferedTransformation &bt) const
Integer CalculateRandomizedInverse (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)
void GenerateRandom (RandomNumberGenerator &rng, const NameValuePairs &alg)
const IntegerGetPrime1 () const
const IntegerGetPrime2 () const
void SetPrime1 (const Integer &p)
void SetPrime2 (const Integer &q)
void Initialize (const Integer &n, const Integer &e)
Integer ApplyFunction (const Integer &x) const
Integer PreimageBound () const
Integer ImageBound () const
const IntegerGetModulus () const
const IntegerGetPublicExponent () const
void SetModulus (const Integer &n)
void SetPublicExponent (const Integer &e)
Integer ApplyRandomizedFunction (RandomNumberGenerator &rng, const Integer &x) const
bool IsRandomized () const
virtual Integer MaxPreimage () const
virtual Integer MaxImage () const
void Save (BufferedTransformation &bt) const
void Load (BufferedTransformation &bt)
virtual bool IsRandomized () 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
virtual bool SupportsPrecomputation () const
virtual void Precompute (unsigned int n)
 do precomputation
virtual void LoadPrecomputation (BufferedTransformation &storedPrecomputation)
 retrieve previously saved precomputation
virtual void SavePrecomputation (BufferedTransformation &storedPrecomputation) const
 save precomputation for later use
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 >
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

static 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 GetK () const

Protected Attributes

Integer m_p
Integer m_q
Integer m_n
Integer m_e

Detailed Description

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Member Function Documentation

void InvertibleESIGNFunction::GenerateRandom ( RandomNumberGenerator rng,
const NameValuePairs alg 
) [virtual]

parameters: (ModulusSize)

Reimplemented from GeneratableCryptoMaterial.

Definition at line 75 of file esign.cpp.

References NameValuePairs::GetIntValue(), Integer::Power2(), SecBlock::resize(), and Integer::BitCount().

virtual void CryptoMaterial::Load ( BufferedTransformation bt) [inline, virtual, inherited]

load key from a BufferedTransformation

Exceptions:
KeyingErrif decode fails
Note:
Generally does not check that the key is valid. Call ValidateKey() or ThrowIfInvalidKey() to check that.

Definition at line 1072 of file cryptlib.h.

Referenced by AsymmetricAlgorithm::BERDecode().

virtual bool CryptoMaterial::SupportsPrecomputation ( ) const [inline, virtual, inherited]
Returns:
whether this object supports precomputation

Reimplemented in DL_GroupParameters.

Definition at line 1076 of file cryptlib.h.

virtual void CryptoMaterial::Precompute ( unsigned int  n) [inline, virtual, inherited]

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 in DL_GroupParameters.

Definition at line 1081 of file cryptlib.h.

bool NameValuePairs::GetIntValue ( const char *  name,
int &  value 
) const [inline, inherited]

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 282 of file cryptlib.h.

Referenced by GenerateRandom(), DL_GroupParameters_DSA::GenerateRandom(), DL_GroupParameters_IntegerBased::GenerateRandom(), InvertibleLUCFunction::GenerateRandom(), InvertibleRabinFunction::GenerateRandom(), InvertibleRSAFunction::GenerateRandom(), and InvertibleRWFunction::GenerateRandom().


The documentation for this class was generated from the following files: