Added in API level 1

RSAMultiPrimePrivateCrtKeySpec

open class RSAMultiPrimePrivateCrtKeySpec : RSAPrivateKeySpec

kotlin.Any
↳	java.security.spec.RSAPrivateKeySpec
	↳	java.security.spec.RSAMultiPrimePrivateCrtKeySpec

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.

Summary

Public constructors

RSAMultiPrimePrivateCrtKeySpec(modulus: BigInteger!, publicExponent: BigInteger!, privateExponent: BigInteger!, primeP: BigInteger!, primeQ: BigInteger!, primeExponentP: BigInteger!, primeExponentQ: BigInteger!, crtCoefficient: BigInteger!, otherPrimeInfo: Array<RSAOtherPrimeInfo!>!)

Creates a new RSAMultiPrimePrivateCrtKeySpec.

RSAMultiPrimePrivateCrtKeySpec(modulus: BigInteger!, publicExponent: BigInteger!, privateExponent: BigInteger!, primeP: BigInteger!, primeQ: BigInteger!, primeExponentP: BigInteger!, primeExponentQ: BigInteger!, crtCoefficient: BigInteger!, otherPrimeInfo: Array<RSAOtherPrimeInfo!>!, keyParams: AlgorithmParameterSpec!)

Creates a new RSAMultiPrimePrivateCrtKeySpec with additional key parameters.

Public methods
open BigInteger!	`getCrtCoefficient()` Returns the crtCoefficient.
open Array<RSAOtherPrimeInfo!>!	`getOtherPrimeInfo()` Returns a copy of the otherPrimeInfo or null if there are only two prime factors (p and q).
open BigInteger!	`getPrimeExponentP()` Returns the primeExponentP.
open BigInteger!	`getPrimeExponentQ()` Returns the primeExponentQ.
open BigInteger!	`getPrimeP()` Returns the primeP.
open BigInteger!	`getPrimeQ()` Returns the primeQ.
open BigInteger!	`getPublicExponent()` Returns the public exponent.

Inherited functions

From class RSAPrivateKeySpec

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.

Public constructors

RSAMultiPrimePrivateCrtKeySpec

Added in API level 1

RSAMultiPrimePrivateCrtKeySpec(
    modulus: BigInteger!, 
    publicExponent: BigInteger!, 
    privateExponent: BigInteger!, 
    primeP: BigInteger!, 
    primeQ: BigInteger!, 
    primeExponentP: BigInteger!, 
    primeExponentQ: BigInteger!, 
    crtCoefficient: BigInteger!, 
    otherPrimeInfo: Array<RSAOtherPrimeInfo!>!)

Creates a new RSAMultiPrimePrivateCrtKeySpec.

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

Parameters
`modulus`	BigInteger!: the modulus n
`publicExponent`	BigInteger!: the public exponent e
`privateExponent`	BigInteger!: the private exponent d
`primeP`	BigInteger!: the prime factor p of n
`primeQ`	BigInteger!: the prime factor q of n
`primeExponentP`	BigInteger!: this is d mod (p-1)
`primeExponentQ`	BigInteger!: this is d mod (q-1)
`crtCoefficient`	BigInteger!: the Chinese Remainder Theorem coefficient q-1 mod p
`otherPrimeInfo`	Array<RSAOtherPrimeInfo!>!: triplets of the rest of primes, null can be specified if there are only two prime factors (p and q)

Exceptions
`java.lang.NullPointerException`	if any of the specified parameters with the exception of `otherPrimeInfo` is null
`java.lang.IllegalArgumentException`	if an empty, i.e. 0-length, `otherPrimeInfo` is specified

RSAMultiPrimePrivateCrtKeySpec

Added in API level 35

RSAMultiPrimePrivateCrtKeySpec(
    modulus: BigInteger!, 
    publicExponent: BigInteger!, 
    privateExponent: BigInteger!, 
    primeP: BigInteger!, 
    primeQ: BigInteger!, 
    primeExponentP: BigInteger!, 
    primeExponentQ: BigInteger!, 
    crtCoefficient: BigInteger!, 
    otherPrimeInfo: Array<RSAOtherPrimeInfo!>!, 
    keyParams: AlgorithmParameterSpec!)

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`	BigInteger!: the modulus n
`publicExponent`	BigInteger!: the public exponent e
`privateExponent`	BigInteger!: the private exponent d
`primeP`	BigInteger!: the prime factor p of n
`primeQ`	BigInteger!: the prime factor q of n
`primeExponentP`	BigInteger!: this is d mod (p-1)
`primeExponentQ`	BigInteger!: this is d mod (q-1)
`crtCoefficient`	BigInteger!: the Chinese Remainder Theorem coefficient q-1 mod p
`otherPrimeInfo`	Array<RSAOtherPrimeInfo!>!: triplets of the rest of primes, null can be specified if there are only two prime factors (p and q)
`keyParams`	AlgorithmParameterSpec!: the parameters associated with key

Exceptions
`java.lang.NullPointerException`	if any of the specified parameters with the exception of `otherPrimeInfo` and `keyParams` is null
`java.lang.IllegalArgumentException`	if an empty, i.e. 0-length, `otherPrimeInfo` is specified

Public methods

getCrtCoefficient

Added in API level 1

open fun getCrtCoefficient(): BigInteger!

Returns the crtCoefficient.

Return
`BigInteger!`	the crtCoefficient.

getOtherPrimeInfo

Added in API level 1

open fun getOtherPrimeInfo(): Array<RSAOtherPrimeInfo!>!

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

Return
`Array<RSAOtherPrimeInfo!>!`	the otherPrimeInfo. Returns a new array each time this method is called.

getPrimeExponentP

Added in API level 1

open fun getPrimeExponentP(): BigInteger!

Returns the primeExponentP.

Return
`BigInteger!`	the primeExponentP.

getPrimeExponentQ

Added in API level 1

open fun getPrimeExponentQ(): BigInteger!

Returns the primeExponentQ.

Return
`BigInteger!`	the primeExponentQ.

getPrimeP

Added in API level 1

open fun getPrimeP(): BigInteger!

Returns the primeP.

Return
`BigInteger!`	the primeP.

getPrimeQ

Added in API level 1

open fun getPrimeQ(): BigInteger!

Returns the primeQ.

Return
`BigInteger!`	the primeQ.

getPublicExponent

Added in API level 1

open fun getPublicExponent(): BigInteger!

Returns the public exponent.

Return
`BigInteger!`	the public exponent.

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Last updated 2025-02-10 UTC.