com.ibm.crypto.fips.provider

Class RSAPrivateCrtKey

java.lang.Object

com.ibm.security.pkcsutil.PKCSDerObject

com.ibm.security.pkcs8.PrivateKeyInfo

com.ibm.crypto.fips.provider.RSAPrivateCrtKey

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.security.interfaces.RSAKey, java.security.interfaces.RSAPrivateCrtKey, java.security.interfaces.RSAPrivateKey, java.security.Key, java.security.PrivateKey

public final class RSAPrivateCrtKey
extends com.ibm.security.pkcs8.PrivateKeyInfo
implements java.security.interfaces.RSAPrivateCrtKey, java.io.Serializable

An X.509 private crt key for the RSA Algorithm.

Version:

1.00, 05/11/99

Author:

Janelle Zhang

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
RSAPrivateCrtKey(java.math.BigInteger m, java.math.BigInteger privEx, java.math.BigInteger pubEx, java.math.BigInteger p, java.math.BigInteger q, java.math.BigInteger ex1, java.math.BigInteger ex2, java.math.BigInteger co) This constructor computes missing key values and formats key values.
RSAPrivateCrtKey(byte[] encoded) Make a RSA private key from its DER encoding (PKCS #8).

Method Summary

Methods

Modifier and Type	Method and Description
java.math.BigInteger	getCrtCoefficient() Returns the crtCoefficient.
java.math.BigInteger	getModulus() Return the modulus.
java.math.BigInteger	getPrimeExponentP() Returns the primeExponentP.
java.math.BigInteger	getPrimeExponentQ() Returns the primeExponentQ.
java.math.BigInteger	getPrimeP() Returns the primeP.
java.math.BigInteger	getPrimeQ() Returns the primeQ.
java.math.BigInteger	getPrivateExponent() Return the private exponent.
java.math.BigInteger	getPublicExponent() Returns the public exponent.
java.lang.String	toString()
void	zeroize() This function zeroizes the key so that it isn't in memory

Methods inherited from class com.ibm.security.pkcs8.PrivateKeyInfo

addAttribute, addAttributes, clone, encode, equals, getAlgorithm, getAlgorithmId, getAttribute, getAttributes, getEncoded, getFormat, getKeyBytes, hasAttribute, hasAttributes, hashCode, parseKey, parseKey

Methods inherited from class com.ibm.security.pkcsutil.PKCSDerObject

encode, getObjectIdentifier, write

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.security.Key

getAlgorithm, getEncoded, getFormat

Constructor Detail

RSAPrivateCrtKey

public RSAPrivateCrtKey(java.math.BigInteger m,
                java.math.BigInteger privEx,
                java.math.BigInteger pubEx,
                java.math.BigInteger p,
                java.math.BigInteger q,
                java.math.BigInteger ex1,
                java.math.BigInteger ex2,
                java.math.BigInteger co)
                 throws java.security.InvalidKeyException

This constructor computes missing key values and formats key values. The slots of missing values should be BigInteger.ZERO. The parametrers required for computation are listed below.

Parameters:

key: -

• 0: modulus (requires: prime1, prime2)
• 1: private exponent (requires: public exp, prime1, prime2)
• 2: public exponent
• 3: prime1 (p)
• 4: prime2 (q)
• 5: exponent1 (requires: private exponent, prime1)
• 6: exponent2 (requires: private exponent, prime2)
• 7: coefficient (requires: prime1, prime2)

Throws:

java.security.InvalidKeyException

RSAPrivateCrtKey

public RSAPrivateCrtKey(byte[] encoded)
                 throws java.security.InvalidKeyException

Make a RSA private key from its DER encoding (PKCS #8).

Throws:

java.security.InvalidKeyException

Method Detail

getModulus

public java.math.BigInteger getModulus()

Return the modulus.

Specified by:

getModulus in interface java.security.interfaces.RSAKey

getPrivateExponent

public java.math.BigInteger getPrivateExponent()

Return the private exponent.

Specified by:

getPrivateExponent in interface java.security.interfaces.RSAPrivateKey

getPublicExponent

public java.math.BigInteger getPublicExponent()

Returns the public exponent.

Specified by:

getPublicExponent in interface java.security.interfaces.RSAPrivateCrtKey

getPrimeP

public java.math.BigInteger getPrimeP()

Returns the primeP.

Specified by:

getPrimeP in interface java.security.interfaces.RSAPrivateCrtKey

getPrimeQ

public java.math.BigInteger getPrimeQ()

Returns the primeQ.

Specified by:

getPrimeQ in interface java.security.interfaces.RSAPrivateCrtKey

getPrimeExponentP

public java.math.BigInteger getPrimeExponentP()

Returns the primeExponentP.

Specified by:

getPrimeExponentP in interface java.security.interfaces.RSAPrivateCrtKey

getPrimeExponentQ

public java.math.BigInteger getPrimeExponentQ()

Returns the primeExponentQ.

Specified by:

getPrimeExponentQ in interface java.security.interfaces.RSAPrivateCrtKey

getCrtCoefficient

public java.math.BigInteger getCrtCoefficient()

Returns the crtCoefficient.

Specified by:

getCrtCoefficient in interface java.security.interfaces.RSAPrivateCrtKey

toString

public java.lang.String toString()

Overrides:

toString in class com.ibm.security.pkcs8.PrivateKeyInfo

zeroize

public void zeroize()

This function zeroizes the key so that it isn't in memory