RSA trapdoor function using the private key. More...

#include <rsa.h>

Inheritance diagram for InvertibleRSAFunction_ISO:

Public Member Functions
Integer	CalculateInverse (RandomNumberGenerator &rng, const Integer &x) const
	Calculates the inverse of an element. More...

Integer	PreimageBound () const
	Returns the maximum size of a message before the trapdoor function is applied. More...

Public Member Functions inherited from InvertibleRSAFunction
void	Initialize (RandomNumberGenerator &rng, unsigned int modulusBits, const Integer &e=17)
	Create a RSA private key. More...

void	Initialize (const Integer &n, const Integer &e, const Integer &d, const Integer &p, const Integer &q, const Integer &dp, const Integer &dq, const Integer &u)
	Initialize a RSA private key. More...

void	Initialize (const Integer &n, const Integer &e, const Integer &d)
	Initialize a RSA private key. More...

void	BERDecode (BufferedTransformation &bt)
	Decode this object from a BufferedTransformation. More...

void	DEREncode (BufferedTransformation &bt) const
	Encode this object into a BufferedTransformation. More...

void	Load (BufferedTransformation &bt)
	Loads a key from a BufferedTransformation. More...

void	Save (BufferedTransformation &bt) const
	Saves a key to a BufferedTransformation. More...

OID	GetAlgorithmID () const
	Retrieves the OID of the algorithm. More...

void	BERDecodePrivateKey (BufferedTransformation &bt, bool parametersPresent, size_t size)
	Decode privateKey part of privateKeyInfo. More...

void	DEREncodePrivateKey (BufferedTransformation &bt) const
	Encode privateKey part of privateKeyInfo. More...

Integer	CalculateInverse (RandomNumberGenerator &rng, const Integer &x) const
	Calculates the inverse of an element. More...

bool	Validate (RandomNumberGenerator &rng, unsigned int level) const
	Check this object for errors. More...

void	GenerateRandom (RandomNumberGenerator &rng, const NameValuePairs &alg)
	Generate a random key or crypto parameters. More...

bool	GetVoidValue (const char name, const std::type_info &valueType, void pValue) const
	Get a named value. More...

void	AssignFrom (const NameValuePairs &source)
	Assign values to this object. More...

const Integer &	GetPrime1 () const

const Integer &	GetPrime2 () const

const Integer &	GetPrivateExponent () const

const Integer &	GetModPrime1PrivateExponent () const

const Integer &	GetModPrime2PrivateExponent () const

const Integer &	GetMultiplicativeInverseOfPrime2ModPrime1 () const

void	SetPrime1 (const Integer &p)

void	SetPrime2 (const Integer &q)

void	SetPrivateExponent (const Integer &d)

void	SetModPrime1PrivateExponent (const Integer &dp)

void	SetModPrime2PrivateExponent (const Integer &dq)

void	SetMultiplicativeInverseOfPrime2ModPrime1 (const Integer &u)

Public Member Functions inherited from RSAFunction
void	Initialize (const Integer &n, const Integer &e)
	Initialize a RSA public key. More...

OID	GetAlgorithmID () const
	Retrieves the OID of the algorithm. More...

void	BERDecodePublicKey (BufferedTransformation &bt, bool parametersPresent, size_t size)
	Decode subjectPublicKey part of subjectPublicKeyInfo. More...

void	DEREncodePublicKey (BufferedTransformation &bt) const
	Encode subjectPublicKey part of subjectPublicKeyInfo. More...

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...

void	AssignFrom (const NameValuePairs &source)
	Assign values to this object. More...

Integer	ApplyFunction (const Integer &x) const
	Applies the trapdoor. More...

Integer	PreimageBound () const
	Returns the maximum size of a message before the trapdoor function is applied. More...

Integer	ImageBound () const
	Returns the maximum size of a representation after the trapdoor function is applied. More...

const Integer &	GetModulus () const

const Integer &	GetPublicExponent () const

void	SetModulus (const Integer &n)

void	SetPublicExponent (const Integer &e)

Public Member Functions inherited from TrapdoorFunction
Integer	ApplyRandomizedFunction (RandomNumberGenerator &rng, const Integer &x) const
	Applies the trapdoor function. More...

bool	IsRandomized () const
	Determines if the encryption algorithm is randomized. More...

virtual Integer	ApplyFunction (const Integer &x) const =0
	Applies the trapdoor. More...

virtual Integer	ApplyRandomizedFunction (RandomNumberGenerator &rng, const Integer &x) const =0
	Applies the trapdoor function, using random data if required. More...

virtual bool	IsRandomized () const
	Determines if the encryption algorithm is randomized. More...

Public Member Functions inherited from TrapdoorFunctionBounds
virtual Integer	PreimageBound () const =0
	Returns the maximum size of a message before the trapdoor function is applied. More...

virtual Integer	ImageBound () const =0
	Returns the maximum size of a representation after the trapdoor function is applied. More...

virtual Integer	MaxPreimage () const
	Returns the maximum size of a message before the trapdoor function is applied bound to a public key. More...

virtual Integer	MaxImage () const
	Returns the maximum size of a representation after the trapdoor function is applied bound to a public key. More...

Public Member Functions inherited from X509PublicKey
void	BERDecode (BufferedTransformation &bt)
	Decode this object from a BufferedTransformation. More...

void	DEREncode (BufferedTransformation &bt) const
	Encode this object into a BufferedTransformation. More...

virtual OID	GetAlgorithmID () const =0
	Retrieves the OID of the algorithm. More...

virtual bool	BERDecodeAlgorithmParameters (BufferedTransformation &bt)
	Decode algorithm parameters. More...

virtual bool	DEREncodeAlgorithmParameters (BufferedTransformation &bt) const
	Encode algorithm parameters. More...

virtual void	BERDecodePublicKey (BufferedTransformation &bt, bool parametersPresent, size_t size)=0
	Decode subjectPublicKey part of subjectPublicKeyInfo. More...

virtual void	DEREncodePublicKey (BufferedTransformation &bt) const =0
	Encode subjectPublicKey part of subjectPublicKeyInfo. More...

Public Member Functions inherited from ASN1CryptoMaterial< PublicKey >
void	Save (BufferedTransformation &bt) const
	DER encode ASN.1 object. More...

void	Load (BufferedTransformation &bt)
	BER decode ASN.1 object. More...

Public Member Functions inherited from ASN1Object
virtual void	BERDecode (BufferedTransformation &bt)=0
	Decode this object from a BufferedTransformation. More...

virtual void	DEREncode (BufferedTransformation &bt) const =0
	Encode this object into a BufferedTransformation. More...

virtual void	BEREncode (BufferedTransformation &bt) const
	Encode this object into a BufferedTransformation. More...

Public Member Functions inherited from CryptoMaterial
virtual void	AssignFrom (const NameValuePairs &source)=0
	Assign values to this object. More...

virtual bool	Validate (RandomNumberGenerator &rng, unsigned int level) const =0
	Check this object for errors. 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...

virtual bool	SupportsPrecomputation () const
	Determines whether the object supports precomputation. More...

virtual void	Precompute (unsigned int precomputationStorage)
	Perform precomputation. More...

virtual void	LoadPrecomputation (BufferedTransformation &storedPrecomputation)
	Retrieve previously saved precomputation. More...

virtual void	SavePrecomputation (BufferedTransformation &storedPrecomputation) const
	Save precomputation for later use. More...

void	DoQuickSanityCheck () const
	Perform a quick sanity check. More...

Public Member Functions inherited from NameValuePairs
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...

virtual CRYPTOPP_DLL bool	GetVoidValue (const char name, const std::type_info &valueType, void pValue) const =0
	Get a named value. More...

Public Member Functions inherited from TrapdoorFunctionInverse
Integer	CalculateRandomizedInverse (RandomNumberGenerator &rng, const Integer &x) const
	Applies the inverse of the trapdoor function. More...

bool	IsRandomized () const
	Determines if the decryption algorithm is randomized. More...

virtual Integer	CalculateInverse (RandomNumberGenerator &rng, const Integer &x) const =0
	Calculates the inverse of an element. More...

virtual Integer	CalculateRandomizedInverse (RandomNumberGenerator &rng, const Integer &x) const =0
	Applies the inverse of the trapdoor function, using random data if required. More...

virtual bool	IsRandomized () const
	Determines if the decryption algorithm is randomized. More...

Public Member Functions inherited from PKCS8PrivateKey
void	BERDecode (BufferedTransformation &bt)
	Decode this object from a BufferedTransformation. More...

void	DEREncode (BufferedTransformation &bt) const
	Encode this object into a BufferedTransformation. More...

virtual OID	GetAlgorithmID () const =0
	Retrieves the OID of the algorithm. More...

virtual bool	BERDecodeAlgorithmParameters (BufferedTransformation &bt)
	Decode optional parameters. More...

virtual bool	DEREncodeAlgorithmParameters (BufferedTransformation &bt) const
	Encode optional parameters. More...

virtual void	BERDecodePrivateKey (BufferedTransformation &bt, bool parametersPresent, size_t size)=0
	Decode privateKey part of privateKeyInfo. More...

virtual void	DEREncodePrivateKey (BufferedTransformation &bt) const =0
	Encode privateKey part of privateKeyInfo. More...

virtual void	BERDecodeOptionalAttributes (BufferedTransformation &bt)
	Decode optional attributes. More...

virtual void	DEREncodeOptionalAttributes (BufferedTransformation &bt) const
	Encode optional attributes. More...

Public Member Functions inherited from ASN1CryptoMaterial< PrivateKey >
void	Save (BufferedTransformation &bt) const
	DER encode ASN.1 object. More...

void	Load (BufferedTransformation &bt)
	BER decode ASN.1 object. More...

Public Member Functions inherited from GeneratableCryptoMaterial
virtual void	GenerateRandom (RandomNumberGenerator &rng, const NameValuePairs &params=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...

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. More...

Detailed Description

RSA trapdoor function using the private key.

Since: Crypto++ 1.0

Definition at line 151 of file rsa.h.

Member Function Documentation

◆ CalculateInverse()

Integer InvertibleRSAFunction_ISO::CalculateInverse	(	RandomNumberGenerator &	rng,
		const Integer &	x
	)		const

virtual

Calculates the inverse of an element.

Parameters

rng	a RandomNumberGenerator derived class
x	the element

Returns: the inverse of the element in the group

Reimplemented from InvertibleRSAFunction.

◆ PreimageBound()

Integer InvertibleRSAFunction_ISO::PreimageBound ( ) const

inlinevirtual

Returns the maximum size of a message before the trapdoor function is applied.

Returns: the maximum size of a message before the trapdoor function is applied

Derived classes must implement PreimageBound().

Reimplemented from RSAFunction.

Definition at line 155 of file rsa.h.

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

rsa.h

Public Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ CalculateInverse()

◆ PreimageBound()