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CRSAPrivateKeyCRT Class Reference

class CRSAPrivateKeyCRT : public CRSAPrivateKey

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.

Inherits from

CRSAPrivateKeyCRT
- CRSAPrivateKey
  - CRSAParameters
    - CBase

Public Member Functions
	~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 &)

Private Member Functions
	CRSAPrivateKeyCRT(const CRSAPrivateKeyCRT &)
void	ConstructL()
CRSAPrivateKeyCRT &	operator=(const CRSAPrivateKeyCRT &)

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

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

Inherited Attributes
	CRSAParameters::iN
	CRSAPrivateKey::iKeyType

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

Parameters

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

CRSAPrivateKeyCRT(const CRSAPrivateKeyCRT &)

CRSAPrivateKeyCRT

(

const CRSAPrivateKeyCRT &

)

[private]

Parameters

const CRSAPrivateKeyCRT &

~CRSAPrivateKeyCRT(void)

IMPORT_C

~CRSAPrivateKeyCRT

(

void

)

[virtual]

Destructor

Parameters

void

Member Functions Documentation

ConstructL()

void

ConstructL

(

)

[private]

DP(void)

IMPORT_C const TInteger &

(

void

)

const

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

Parameters

void

DQ(void)

IMPORT_C const TInteger &

(

void

)

const

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

Parameters

void

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.

Parameters

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

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.

Parameters

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

P(void)

IMPORT_C const TInteger &

(

void

)

const

Gets the RSA parameter, p (the first factor)

Parameters

void

Q(void)

IMPORT_C const TInteger &

(

void

)

const

Gets the RSA parameter, q (the second factor)

Parameters

void

QInv(void)

IMPORT_C const TInteger &

QInv

(

void

)

const

Gets the RSA parameter, qInv (the CRT coefficient)

Parameters

void

operator=(const CRSAPrivateKeyCRT &)

CRSAPrivateKeyCRT &

operator=

(

const CRSAPrivateKeyCRT &

)

[private]

Parameters

const CRSAPrivateKeyCRT &

Member Data Documentation

RInteger iDP

RInteger

iDP

[protected]

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

RInteger iDQ

RInteger

iDQ

[protected]

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

RInteger iP

RInteger

[protected]

The RSA parameter, p, which is the first factor

RInteger iQ

RInteger

[protected]

The RSA parameter, q, which is the second factor

RInteger iQInv

RInteger

iQInv

[protected]

The RSA parameter, qInv, which is the CRT coefficient