CRSAPrivateKeyCRT Class Reference

#include <asymmetrickeys.h>

class CRSAPrivateKeyCRT : public CRSAPrivateKey

Inherits from

CRSAPrivateKeyCRT
- CRSAPrivateKey
  - CRSAParameters

Protected Attributes
RInteger	iDP
RInteger	iDQ
RInteger	iP
RInteger	iQ
RInteger	iQInv

Public Member Functions
virtual	~CRSAPrivateKeyCRT(void)
IMPORT_C const TInteger &	DP(void)
IMPORT_C const TInteger &	DQ(void)
IMPORT_C CRSAPrivateKeyCRT *	NewL(RInteger &, RInteger &, RInteger &, RInteger &, RInteger &, RInteger &)
IMPORT_C CRSAPrivateKeyCRT *	NewLC(RInteger &, RInteger &, RInteger &, RInteger &, RInteger &, RInteger &)
IMPORT_C const TInteger &	P(void)
IMPORT_C const TInteger &	Q(void)
IMPORT_C const TInteger &	QInv(void)

Protected Member Functions
	CRSAPrivateKeyCRT(RInteger &, RInteger &, RInteger &, RInteger &, RInteger &, RInteger &)

Inherited Attributes
	CRSAParameters::iN
	CRSAPrivateKey::iKeyType

Inherited Functions
	CBase::CBase()
	CBase::Delete(CBase *)
	CBase::Extension_(TUint,TAny &,TAny )
	CBase::operator new(TUint)
	CBase::operator new(TUint,TAny *)
	CBase::operator new(TUint,TLeave)
	CBase::operator new(TUint,TLeave,TUint)
	CBase::operator new(TUint,TUint)
	CBase::~CBase()
	CRSAParameters::CRSAParameters(RInteger &)
	CRSAParameters::CRSAParameters(void)
	CRSAParameters::N(void)const
	CRSAParameters::~CRSAParameters(void)
	CRSAPrivateKey::CRSAPrivateKey(const TRSAPrivateKeyType,RInteger &)
	CRSAPrivateKey::PrivateKeyType()const

Detailed Description

An alternate representation of an RSA private key providing significant speed enhancements through its use of the Chinese Remainder Theorem (CRT).

Here, a private key is represented by a modulus (n), the two prime factors of the modulus (p, q), p's CRT exponent (dP), q's CRT exponent (dQ), and the CRT coefficient (qInv). See PKCS#1 at http://www.rsasecurity.com/rsalabs/pkcs/ for more information.

Member Attribute Documentation

iDP

RInteger

iDP

[protected]

The RSA parameter, dP, which is the first factor's CRT exponent

iDQ

RInteger

iDQ

[protected]

The RSA parameter, dQ, which is the second factor's CRT exponent

iP

RInteger

[protected]

The RSA parameter, p, which is the first factor

iQ

RInteger

[protected]

The RSA parameter, q, which is the second factor

iQInv

RInteger

iQInv

[protected]

The RSA parameter, qInv, which is the CRT coefficient

Constructor & Destructor Documentation

CRSAPrivateKeyCRT ( RInteger &, RInteger &, RInteger &, RInteger &, RInteger &, RInteger & )

IMPORT_C	CRSAPrivateKeyCRT	(	RInteger &	aN,
			RInteger &	aP,
			RInteger &	aQ,
			RInteger &	aDP,
			RInteger &	aDQ,
			RInteger &	aQInv
		)	[protected]

Constructor

Parameter	Description
aN	The RSA parameter, n (the modulus)
aP	The RSA parameter, p (the first factor)
aQ	The RSA parameter, q (the second factor)
aDP	The RSA parameter, dP (the first factor's CRT exponent)
aDQ	The RSA parameter, dQ (the second factor's CRT exponent)
aQInv	The RSA parameter, qInv (the CRT coefficient)

~CRSAPrivateKeyCRT ( void )

IMPORT_C

~CRSAPrivateKeyCRT

(

void

)

[virtual]

Destructor

Member Function Documentation

DP ( void )

IMPORT_C const TInteger &

(

void

)

const

Gets the RSA parameter, dP (the first factor's CRT exponent)

Returns: The first factor's CRT exponent

DQ ( void )

IMPORT_C const TInteger &

(

void

)

const

Gets the RSA parameter, dQ (the second factor's CRT exponent)

Returns: The second factor's CRT exponent

NewL ( RInteger &, RInteger &, RInteger &, RInteger &, RInteger &, RInteger & )

IMPORT_C CRSAPrivateKeyCRT *	NewL	(	RInteger &	iN,
			RInteger &	aP,
			RInteger &	aQ,
			RInteger &	aDP,
			RInteger &	aDQ,
			RInteger &	aQInv
		)	[static]

Creates a new CRSAPrivateKeyCRT object from a specified modulus and decryption exponent.

leave: KErrArgument If any of the parameters are not positive integers, and releases ownership.

Parameter	Description
iN	The RSA parameter, n (the modulus)
aP	The RSA parameter, p (the first factor)
aQ	The RSA parameter, q (the second factor)
aDP	The RSA parameter, dP (the first factor's CRT exponent)
aDQ	The RSA parameter, dQ (the second factor's CRT exponent)
aQInv	The RSA parameter, qInv (the CRT coefficient)

Returns: A pointer to a new CRSAPrivateKeyCRT object

NewLC ( RInteger &, RInteger &, RInteger &, RInteger &, RInteger &, RInteger & )

IMPORT_C CRSAPrivateKeyCRT *	NewLC	(	RInteger &	iN,
			RInteger &	aP,
			RInteger &	aQ,
			RInteger &	aDP,
			RInteger &	aDQ,
			RInteger &	aQInv
		)	[static]

Creates a new CRSAPrivateKeyCRT object from a specified modulus and decryption exponent.

The returned pointer is put onto the cleanup stack.

leave: KErrArgument If any of the parameters are not positive integers, and releases ownership.

Parameter	Description
iN	The RSA parameter, n (the modulus)
aP	The RSA parameter, p (the first factor)
aQ	The RSA parameter, q (the second factor)
aDP	The RSA parameter, dP (the first factor's CRT exponent)
aDQ	The RSA parameter, dQ (the second factor's CRT exponent)
aQInv	The RSA parameter, qInv (the CRT coefficient)

Returns: A pointer to a new CRSAPrivateKeyCRT object

P ( void )

IMPORT_C const TInteger &

(

void

)

const

Gets the RSA parameter, p (the first factor)

Returns: The first factor

Q ( void )

IMPORT_C const TInteger &

(

void

)

const

Gets the RSA parameter, q (the second factor)

Returns: The second factor

QInv ( void )

IMPORT_C const TInteger &

QInv

(

void

)

const

Gets the RSA parameter, qInv (the CRT coefficient)

Returns: The CRT coefficient