com.licel.jcardsim.crypto

Class RSAKeyImpl

java.lang.Object

com.licel.jcardsim.crypto.KeyImpl

com.licel.jcardsim.crypto.RSAKeyImpl

All Implemented Interfaces:

KeyWithParameters, javacard.security.Key, javacard.security.PrivateKey, javacard.security.PublicKey, javacard.security.RSAPrivateKey, javacard.security.RSAPublicKey

Direct Known Subclasses:

RSAPrivateCrtKeyImpl

public class RSAKeyImpl
extends KeyImpl
implements javacard.security.RSAPrivateKey, javacard.security.RSAPublicKey

Implementation RSAPublic/RSAPrivate based on BouncyCastle CryptoAPI.

See Also:

RSAPrivateKey, RSAPublicKey, RSAKeyParameters

Field Summary

Fields

Modifier and Type	Field and Description
protected ByteContainer	exponent
protected boolean	isPrivate
protected ByteContainer	modulus

Fields inherited from class com.licel.jcardsim.crypto.KeyImpl

size, type

Constructor Summary

Constructors

Constructor and Description
RSAKeyImpl(boolean isPrivate, short size) Construct not-initialized rsa key
RSAKeyImpl(org.bouncycastle.crypto.params.RSAKeyParameters params) Construct and initialize rsa key with RSAKeyParameters.

Method Summary

Modifier and Type	Method and Description
void	clearKey()
short	getExponent(byte[] buffer, short offset)
org.bouncycastle.crypto.KeyGenerationParameters	getKeyGenerationParameters(SecureRandom rnd) Get RSAKeyGenerationParameters
short	getModulus(byte[] buffer, short offset)
org.bouncycastle.crypto.CipherParameters	getParameters() Get RSAKeyParameters
boolean	isInitialized()
void	setExponent(byte[] buffer, short offset, short length)
void	setModulus(byte[] buffer, short offset, short length)
void	setParameters(org.bouncycastle.crypto.CipherParameters params) Set cipher key for use with BouncyCastle Crypto API

Methods inherited from class com.licel.jcardsim.crypto.KeyImpl

getSize, getType

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface javacard.security.Key

getSize, getType

Field Detail

exponent

protected ByteContainer exponent

modulus

protected ByteContainer modulus

isPrivate

protected boolean isPrivate

Constructor Detail

RSAKeyImpl

public RSAKeyImpl(boolean isPrivate,
                  short size)

Construct not-initialized rsa key

Parameters:

isPrivate - true if private key

size - key size it bits (modulus size)

See Also:

KeyBuilder

RSAKeyImpl

public RSAKeyImpl(org.bouncycastle.crypto.params.RSAKeyParameters params)

Construct and initialize rsa key with RSAKeyParameters. Use in KeyPairImpl

Parameters:

params - key params from BouncyCastle API

See Also:

KeyPair, RSAKeyParameters

Method Detail

setParameters

public void setParameters(org.bouncycastle.crypto.CipherParameters params)

Description copied from interface: KeyWithParameters

Set cipher key for use with BouncyCastle Crypto API

Specified by:

setParameters in interface KeyWithParameters

Parameters:

params - key parameters

getExponent

public short getExponent(byte[] buffer,
                         short offset)

Specified by:

getExponent in interface javacard.security.RSAPrivateKey

Specified by:

getExponent in interface javacard.security.RSAPublicKey

getModulus

public short getModulus(byte[] buffer,
                        short offset)

Specified by:

getModulus in interface javacard.security.RSAPrivateKey

Specified by:

getModulus in interface javacard.security.RSAPublicKey

setExponent

public void setExponent(byte[] buffer,
                        short offset,
                        short length)
                 throws javacard.security.CryptoException

Specified by:

setExponent in interface javacard.security.RSAPrivateKey

Specified by:

setExponent in interface javacard.security.RSAPublicKey

Throws:

javacard.security.CryptoException

setModulus

public void setModulus(byte[] buffer,
                       short offset,
                       short length)
                throws javacard.security.CryptoException

Specified by:

setModulus in interface javacard.security.RSAPrivateKey

Specified by:

setModulus in interface javacard.security.RSAPublicKey

Throws:

javacard.security.CryptoException

clearKey

public void clearKey()

Specified by:

clearKey in interface javacard.security.Key

isInitialized

public boolean isInitialized()

Specified by:

isInitialized in interface javacard.security.Key

getParameters

public org.bouncycastle.crypto.CipherParameters getParameters()

Get RSAKeyParameters

Specified by:

getParameters in interface KeyWithParameters

Returns:

parameters for use with BouncyCastle API

See Also:

RSAKeyParameters

getKeyGenerationParameters

public org.bouncycastle.crypto.KeyGenerationParameters getKeyGenerationParameters(SecureRandom rnd)

Get RSAKeyGenerationParameters

Specified by:

getKeyGenerationParameters in interface KeyWithParameters

Parameters:

rnd - Secure Random Generator

Returns:

parameters for use with BouncyCastle API