RSAMultiPrimePrivateCrtKeySpec (Java Platform SE 6)

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Java™ Platform
Standard Ed. 6

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java.security.spec
Class RSAMultiPrimePrivateCrtKeySpec

java.lang.Object
 extended by java.security.spec.RSAPrivateKeySpec
 extended by java.security.spec.RSAMultiPrimePrivateCrtKeySpec

All Implemented Interfaces:: KeySpec

public class RSAMultiPrimePrivateCrtKeySpec
extends RSAPrivateKeySpec
extends RSAPrivateKeySpec

This class specifies an RSA multi-prime private key, as defined in the PKCS#1 v2.1, using the Chinese Remainder Theorem (CRT) information values for efficiency.

Since:: 1.4
See Also:: Key, KeyFactory, KeySpec, PKCS8EncodedKeySpec, RSAPrivateKeySpec, RSAPublicKeySpec, RSAOtherPrimeInfo

Constructor Summary
`RSAMultiPrimePrivateCrtKeySpec(BigInteger modulus, BigInteger publicExponent, BigInteger privateExponent, BigInteger primeP, BigInteger primeQ, BigInteger primeExponentP, BigInteger primeExponentQ, BigInteger crtCoefficient, RSAOtherPrimeInfo[] otherPrimeInfo)` Creates a new `RSAMultiPrimePrivateCrtKeySpec` given the modulus, publicExponent, privateExponent, primeP, primeQ, primeExponentP, primeExponentQ, crtCoefficient, and otherPrimeInfo as defined in PKCS#1 v2.1.

Constructor Summary

RSAMultiPrimePrivateCrtKeySpec(BigInteger modulus,
 BigInteger publicExponent,
 BigInteger privateExponent,
 BigInteger primeP,
 BigInteger primeQ,
 BigInteger primeExponentP,
 BigInteger primeExponentQ,
 BigInteger crtCoefficient,
 RSAOtherPrimeInfo[] otherPrimeInfo)

Creates a new RSAMultiPrimePrivateCrtKeySpec given the modulus, publicExponent, privateExponent, primeP, primeQ, primeExponentP, primeExponentQ, crtCoefficient, and otherPrimeInfo as defined in PKCS#1 v2.1.

Method Summary
`BigInteger`	`getCrtCoefficient()` Returns the crtCoefficient.
`RSAOtherPrimeInfo[]`	`getOtherPrimeInfo()` Returns a copy of the otherPrimeInfo or null if there are only two prime factors (p and q).
`BigInteger`	`getPrimeExponentP()` Returns the primeExponentP.
`BigInteger`	`getPrimeExponentQ()` Returns the primeExponentQ.
`BigInteger`	`getPrimeP()` Returns the primeP.
`BigInteger`	`getPrimeQ()` Returns the primeQ.
`BigInteger`	`getPublicExponent()` Returns the public exponent.

Methods inherited from class java.security.spec.RSAPrivateKeySpec
`getModulus, getPrivateExponent`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

RSAMultiPrimePrivateCrtKeySpec

public RSAMultiPrimePrivateCrtKeySpec(BigInteger modulus,
 BigInteger publicExponent,
 BigInteger privateExponent,
 BigInteger primeP,
 BigInteger primeQ,
 BigInteger primeExponentP,
 BigInteger primeExponentQ,
 BigInteger crtCoefficient,
 RSAOtherPrimeInfo[] otherPrimeInfo)

Note that the contents of otherPrimeInfo are copied to protect against subsequent modification when constructing this object.

Parameters:: modulus - the modulus n.; publicExponent - the public exponent e.; privateExponent - the private exponent d.; primeP - the prime factor p of n.; primeQ - the prime factor q of n.; primeExponentP - this is d mod (p-1).; primeExponentQ - this is d mod (q-1).; crtCoefficient - the Chinese Remainder Theorem coefficient q-1 mod p.; otherPrimeInfo - triplets of the rest of primes, null can be specified if there are only two prime factors (p and q).
Throws:: NullPointerException - if any of the parameters, i.e. modulus, publicExponent, privateExponent, primeP, primeQ, primeExponentP, primeExponentQ, crtCoefficient, is null.; IllegalArgumentException - if an empty, i.e. 0-length, otherPrimeInfo is specified.

Method Detail

getPublicExponent

public BigInteger getPublicExponent()

Returns the public exponent.

Returns:: the public exponent.

getPrimeP

public BigInteger getPrimeP()

Returns the primeP.

Returns:: the primeP.

getPrimeQ

public BigInteger getPrimeQ()

Returns the primeQ.

Returns:: the primeQ.

getPrimeExponentP

public BigInteger getPrimeExponentP()

Returns the primeExponentP.

Returns:: the primeExponentP.

getPrimeExponentQ

public BigInteger getPrimeExponentQ()

Returns the primeExponentQ.

Returns:: the primeExponentQ.

getCrtCoefficient

public BigInteger getCrtCoefficient()

Returns the crtCoefficient.

Returns:: the crtCoefficient.

getOtherPrimeInfo

public RSAOtherPrimeInfo[] getOtherPrimeInfo()

Returns a copy of the otherPrimeInfo or null if there are only two prime factors (p and q).

Returns:: the otherPrimeInfo. Returns a new array each time this method is called.