Class RSAMultiPrimePrivateCrtKeySpec

java.lang.Object

java.security.spec.RSAPrivateKeySpec

java.security.spec.RSAMultiPrimePrivateCrtKeySpec

All Implemented Interfaces:: KeySpec

public class RSAMultiPrimePrivateCrtKeySpec extends RSAPrivateKeySpec

This class specifies an RSA multi-prime private key, as defined in the PKCS#1 v2.2 standard using the Chinese Remainder Theorem (CRT) information values for efficiency.

Since:

1.4

External Specifications

See Also:

Constructor Summary

Constructor	Description
`RSAMultiPrimePrivateCrtKeySpec(BigInteger modulus, BigInteger publicExponent, BigInteger privateExponent, BigInteger primeP, BigInteger primeQ, BigInteger primeExponentP, BigInteger primeExponentQ, BigInteger crtCoefficient, RSAOtherPrimeInfo[] otherPrimeInfo)`	Creates a new `RSAMultiPrimePrivateCrtKeySpec`.
`RSAMultiPrimePrivateCrtKeySpec(BigInteger modulus, BigInteger publicExponent, BigInteger privateExponent, BigInteger primeP, BigInteger primeQ, BigInteger primeExponentP, BigInteger primeExponentQ, BigInteger crtCoefficient, RSAOtherPrimeInfo[] otherPrimeInfo, AlgorithmParameterSpec keyParams)`	Creates a new `RSAMultiPrimePrivateCrtKeySpec` with additional key parameters.

Method Summary

Modifier and Type	Method	Description
`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 declared in class RSAPrivateKeySpec

getModulus, getParams, getPrivateExponent

Modifier and Type	Method	Description
`BigInteger`	`getModulus()`	Returns the modulus.
`AlgorithmParameterSpec`	`getParams()`	Returns the parameters associated with this key, may be null if not present.
`BigInteger`	`getPrivateExponent()`	Returns the private exponent.

Methods declared in class Object

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

Modifier and Type	Method	Description
`protected Object`	`clone()`	Creates and returns a copy of this object.
`boolean`	`equals(Object obj)`	Indicates whether some other object is "equal to" this one.
`protected void`	`finalize()`	Deprecated, for removal: This API element is subject to removal in a future version. Finalization is deprecated and subject to removal in a future release.
`final Class<?>`	`getClass()`	Returns the runtime class of this `Object`.
`int`	`hashCode()`	Returns a hash code value for this object.
`final void`	`notify()`	Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()`	Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()`	Returns a string representation of the object.
`final void`	`wait()`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
`final void`	`wait(long timeoutMillis)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis, int nanos)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

Constructor Details

RSAMultiPrimePrivateCrtKeySpec

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

Creates a new RSAMultiPrimePrivateCrtKeySpec.

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 specified parameters except otherPrimeInfo is null; IllegalArgumentException - if an empty, i.e. 0-length, otherPrimeInfo is specified

RSAMultiPrimePrivateCrtKeySpec

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

Creates a new RSAMultiPrimePrivateCrtKeySpec with additional key parameters.

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); keyParams - the parameters associated with key
Throws:: NullPointerException - if any of the specified parameters except otherPrimeInfo and keyParams is null; IllegalArgumentException - if an empty, i.e. 0-length, otherPrimeInfo is specified
Since:: 11

Method Details

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.

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