InvertibleRSAFunction Class Reference

#include <rsa.h>

Inheritance diagram for InvertibleRSAFunction:

List of all members.

---

Detailed Description

_

Definition at line 53 of file rsa.h.

Public Member Functions
void	Initialize (RandomNumberGenerator &rng, unsigned int modulusBits, const Integer &e=17)
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)
void	Initialize (const Integer &n, const Integer &e, const Integer &d)
	factor n given private exponent
void	BERDecode (BufferedTransformation &bt)
	decode this object from a BufferedTransformation, using BER (Basic Encoding Rules)
void	DEREncode (BufferedTransformation &bt) const
	encode this object into a BufferedTransformation, using DER (Distinguished Encoding Rules)
void	Load (BufferedTransformation &bt)
	load key from a BufferedTransformation
void	Save (BufferedTransformation &bt) const
	save key into a BufferedTransformation
OID	GetAlgorithmID () const
void	BERDecodePrivateKey (BufferedTransformation &bt, bool parametersPresent, size_t size)
	decode privateKey part of privateKeyInfo, without the OCTET STRING header
void	DEREncodePrivateKey (BufferedTransformation &bt) const
	encode privateKey part of privateKeyInfo, without the OCTET STRING header
Integer	CalculateInverse (RandomNumberGenerator &rng, const Integer &x) const
bool	Validate (RandomNumberGenerator &rng, unsigned int level) const
	check this object for errors
void	GenerateRandom (RandomNumberGenerator &rng, const NameValuePairs &alg)
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
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)
void	Initialize (const Integer &n, const Integer &e)
void	BERDecodePublicKey (BufferedTransformation &bt, bool parametersPresent, size_t size)
	decode subjectPublicKey part of subjectPublicKeyInfo, without the BIT STRING header
void	DEREncodePublicKey (BufferedTransformation &bt) const
	encode subjectPublicKey part of subjectPublicKeyInfo, without the BIT STRING header
Integer	ApplyFunction (const Integer &x) const
Integer	PreimageBound () const
Integer	ImageBound () const
const Integer &	GetModulus () const
const Integer &	GetPublicExponent () 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
virtual bool	BERDecodeAlgorithmParameters (BufferedTransformation &bt)
virtual bool	DEREncodeAlgorithmParameters (BufferedTransformation &bt) const
virtual void	BEREncode (BufferedTransformation &bt) const
	encode this object into a BufferedTransformation, using BER
Integer	CalculateRandomizedInverse (RandomNumberGenerator &rng, const Integer &x) const
bool	IsRandomized () const
virtual bool	BERDecodeAlgorithmParameters (BufferedTransformation &bt)
virtual bool	DEREncodeAlgorithmParameters (BufferedTransformation &bt) const
virtual void	BERDecodeOptionalAttributes (BufferedTransformation &bt)
	decode optional attributes including context-specific tag
virtual void	DEREncodeOptionalAttributes (BufferedTransformation &bt) const
	encode optional attributes including context-specific tag
Protected Attributes
Integer	m_d
Integer	m_p
Integer	m_q
Integer	m_dp
Integer	m_dq
Integer	m_u
Integer	m_n
Integer	m_e
ByteQueue	m_optionalAttributes

---

Member Function Documentation

void InvertibleRSAFunction::Load

(

BufferedTransformation &

bt

)

[inline, virtual]

load key from a BufferedTransformation

Exceptions:

KeyingErr

if decode fails

Note:

Generally does not check that the key is valid. Call ValidateKey() or ThrowIfInvalidKey() to check that.

Reimplemented from ASN1CryptoMaterial< PrivateKey >.

Definition at line 69 of file rsa.h.

References PKCS8PrivateKey::BERDecode().

bool InvertibleRSAFunction::Validate	(	RandomNumberGenerator &	rng,
		unsigned int	level
	)			const [virtual]

check this object for errors

Parameters:

level

denotes the level of thoroughness: 0 - using this object won't cause a crash or exception (rng is ignored) 1 - this object will probably function (encrypt, sign, etc.) correctly (but may not check for weak keys and such) 2 - make sure this object will function correctly, and do reasonable security checks 3 - do checks that may take a long time

Returns:

true if the tests pass

Reimplemented from RSAFunction.

Definition at line 243 of file rsa.cpp.

References Integer::IsOdd(), Integer::IsPositive(), m_d, m_dp, m_dq, RSAFunction::m_e, RSAFunction::m_n, m_p, m_q, m_u, Integer::One(), and RSAFunction::Validate().

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

parameters: (ModulusSize, PublicExponent (default 17))

Reimplemented from GeneratableCryptoMaterial.

Definition at line 104 of file rsa.cpp.

References Integer::GenerateRandom(), NameValuePairs::GetIntValue(), PrimeSelector::GetSelectorPointer(), NameValuePairs::GetValueWithDefault(), Integer::InverseMod(), Integer::IsEven(), Integer::IsPositive(), Name::KeySize(), m_d, m_dp, m_dq, RSAFunction::m_e, RSAFunction::m_n, m_p, m_q, m_u, Name::ModulusSize(), Name::PointerToPrimeSelector(), and Name::PublicExponent().

Referenced by Initialize().

void InvertibleRSAFunction::AssignFrom

(

const NameValuePairs &

source

)

[virtual]

assign values from source to this object

Note:

This function can be used to create a public key from a private key.

Reimplemented from RSAFunction.

Definition at line 276 of file rsa.cpp.

virtual void ASN1Object::BEREncode

(

BufferedTransformation &

bt

)

const [inline, virtual, inherited]

encode this object into a BufferedTransformation, using BER

this may be useful if DEREncode() would be too inefficient

Definition at line 1581 of file cryptlib.h.

Referenced by ASN1CryptoMaterial< PublicKey >::Save().

void PKCS8PrivateKey::BERDecodeOptionalAttributes

(

BufferedTransformation &

bt

)

[virtual, inherited]

decode optional attributes including context-specific tag

/note default implementation stores attributes to be output in DEREncodeOptionalAttributes

Definition at line 583 of file asn.cpp.

References PKCS8PrivateKey::m_optionalAttributes.

Referenced by PKCS8PrivateKey::BERDecode().

---

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

• rsa.h
• rsa.cpp

---