RSAPrivateCrtKeySpec
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This class specifies an RSA private key, as defined in the PKCS#1
standard, using the Chinese Remainder Theorem (CRT) information values for
efficiency.
Public Constructor Summary
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RSAPrivateCrtKeySpec(BigInteger modulus, BigInteger publicExponent, BigInteger privateExponent, BigInteger primeP, BigInteger primeQ, BigInteger primeExponentP, BigInteger primeExponentQ, BigInteger crtCoefficient)
Creates a new RSAPrivateCrtKeySpec
given the modulus, publicExponent, privateExponent,
primeP, primeQ, primeExponentP, primeExponentQ, and
crtCoefficient as defined in PKCS#1.
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Public Method Summary
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BigInteger
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BigInteger
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BigInteger
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BigInteger
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BigInteger
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BigInteger
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Inherited Method Summary
From class
java.lang.Object
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Object
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clone()
Creates and returns a copy of this Object.
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boolean
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equals( Object obj)
Compares this instance with the specified object and indicates if they
are equal.
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void
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finalize()
Invoked when the garbage collector has detected that this instance is no longer reachable.
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final
Class<?>
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getClass()
Returns the unique instance of Class that represents this
object's class.
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int
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hashCode()
Returns an integer hash code for this object.
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final
void
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notify()
Causes a thread which is waiting on this object's monitor (by means of
calling one of the wait() methods) to be woken up.
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final
void
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notifyAll()
Causes all threads which are waiting on this object's monitor (by means
of calling one of the wait() methods) to be woken up.
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String
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toString()
Returns a string containing a concise, human-readable description of this
object.
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final
void
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wait(long timeout, int nanos)
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the
specified timeout expires.
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final
void
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wait(long timeout)
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the
specified timeout expires.
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final
void
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wait()
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object.
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Public Constructors
public
RSAPrivateCrtKeySpec
(BigInteger modulus, BigInteger publicExponent, BigInteger privateExponent, BigInteger primeP, BigInteger primeQ, BigInteger primeExponentP, BigInteger primeExponentQ, BigInteger crtCoefficient)
Creates a new RSAPrivateCrtKeySpec
given the modulus, publicExponent, privateExponent,
primeP, primeQ, primeExponentP, primeExponentQ, and
crtCoefficient as defined in PKCS#1.
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
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Public Methods
public
BigInteger
getCrtCoefficient
()
Returns the crtCoefficient.
public
BigInteger
getPrimeExponentP
()
Returns the primeExponentP.
public
BigInteger
getPrimeExponentQ
()
Returns the primeExponentQ.
public
BigInteger
getPrimeP
()
public
BigInteger
getPrimeQ
()
public
BigInteger
getPublicExponent
()
Returns the public exponent.
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2024-07-10 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-07-10 UTC."],[[["\u003cp\u003e\u003ccode\u003eRSAPrivateCrtKeySpec\u003c/code\u003e specifies an RSA private key using the Chinese Remainder Theorem (CRT) for efficiency.\u003c/p\u003e\n"],["\u003cp\u003eIt extends \u003ccode\u003eRSAPrivateKeySpec\u003c/code\u003e and includes CRT-specific parameters like \u003ccode\u003eprimeP\u003c/code\u003e, \u003ccode\u003eprimeQ\u003c/code\u003e, and \u003ccode\u003ecrtCoefficient\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThis class provides methods to access all key components including \u003ccode\u003emodulus\u003c/code\u003e, \u003ccode\u003epublicExponent\u003c/code\u003e, \u003ccode\u003eprivateExponent\u003c/code\u003e, and CRT values.\u003c/p\u003e\n"],["\u003cp\u003eA constructor is available to create an \u003ccode\u003eRSAPrivateCrtKeySpec\u003c/code\u003e instance with all necessary parameters.\u003c/p\u003e\n"],["\u003cp\u003eIt's used with \u003ccode\u003eKeyFactory\u003c/code\u003e to convert between key specifications and key objects.\u003c/p\u003e\n"]]],[],null,["public class **RSAPrivateCrtKeySpec** extends [RSAPrivateKeySpec](../../../../reference/java/security/spec/RSAPrivateKeySpec.html) \nThis class specifies an RSA private key, as defined in the PKCS#1\nstandard, using the Chinese Remainder Theorem (CRT) information values for\nefficiency. \n\nSee Also\n\n- [Key](../../../../reference/java/security/Key.html)\n- [KeyFactory](../../../../reference/java/security/KeyFactory.html)\n- [KeySpec](../../../../reference/java/security/spec/KeySpec.html)\n- [PKCS8EncodedKeySpec](../../../../reference/java/security/spec/PKCS8EncodedKeySpec.html)\n- [RSAPrivateKeySpec](../../../../reference/java/security/spec/RSAPrivateKeySpec.html)\n- [RSAPublicKeySpec](../../../../reference/java/security/spec/RSAPublicKeySpec.html) \n\nPublic Constructor Summary\n\n|---|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| | [RSAPrivateCrtKeySpec](../../../../reference/java/security/spec/RSAPrivateCrtKeySpec.html#RSAPrivateCrtKeySpec(java.math.BigInteger,%20java.math.BigInteger,%20java.math.BigInteger,%20java.math.BigInteger,%20java.math.BigInteger,%20java.math.BigInteger,%20java.math.BigInteger,%20java.math.BigInteger))(BigInteger modulus, BigInteger publicExponent, BigInteger privateExponent, BigInteger primeP, BigInteger primeQ, BigInteger primeExponentP, BigInteger primeExponentQ, BigInteger crtCoefficient) Creates a new `RSAPrivateCrtKeySpec` given the modulus, publicExponent, privateExponent, primeP, primeQ, primeExponentP, primeExponentQ, and crtCoefficient as defined in PKCS#1. |\n\nPublic Method Summary\n\n|------------|--------------------------------------------------------------------------------------------------------------------------------------------|\n| BigInteger | [getCrtCoefficient](../../../../reference/java/security/spec/RSAPrivateCrtKeySpec.html#getCrtCoefficient())() Returns the crtCoefficient. |\n| BigInteger | [getPrimeExponentP](../../../../reference/java/security/spec/RSAPrivateCrtKeySpec.html#getPrimeExponentP())() Returns the primeExponentP. |\n| BigInteger | [getPrimeExponentQ](../../../../reference/java/security/spec/RSAPrivateCrtKeySpec.html#getPrimeExponentQ())() Returns the primeExponentQ. |\n| BigInteger | [getPrimeP](../../../../reference/java/security/spec/RSAPrivateCrtKeySpec.html#getPrimeP())() Returns the primeP. |\n| BigInteger | [getPrimeQ](../../../../reference/java/security/spec/RSAPrivateCrtKeySpec.html#getPrimeQ())() Returns the primeQ. |\n| BigInteger | [getPublicExponent](../../../../reference/java/security/spec/RSAPrivateCrtKeySpec.html#getPublicExponent())() Returns the public exponent. |\n\nInherited Method Summary \nFrom class [java.security.spec.RSAPrivateKeySpec](../../../../reference/java/security/spec/RSAPrivateKeySpec.html) \n\n|------------|--------------------------------------------------------------------------------------------------------------------------------------------|\n| BigInteger | [getModulus](../../../../reference/java/security/spec/RSAPrivateKeySpec.html#getModulus())() Returns the modulus. |\n| BigInteger | [getPrivateExponent](../../../../reference/java/security/spec/RSAPrivateKeySpec.html#getPrivateExponent())() Returns the private exponent. |\n\nFrom class [java.lang.Object](../../../../reference/java/lang/Object.html) \n\n|----------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| [Object](../../../../reference/java/lang/Object.html) | [clone](../../../../reference/java/lang/Object.html#clone())() Creates and returns a copy of this `Object`. |\n| boolean | [equals](../../../../reference/java/lang/Object.html#equals(java.lang.Object))([Object](../../../../reference/java/lang/Object.html) obj) Compares this instance with the specified object and indicates if they are equal. |\n| void | [finalize](../../../../reference/java/lang/Object.html#finalize())() Invoked when the garbage collector has detected that this instance is no longer reachable. |\n| final [Class](../../../../reference/java/lang/Class.html)\\\u003c?\\\u003e | [getClass](../../../../reference/java/lang/Object.html#getClass())() Returns the unique instance of [Class](../../../../reference/java/lang/Class.html) that represents this object's class. |\n| int | [hashCode](../../../../reference/java/lang/Object.html#hashCode())() Returns an integer hash code for this object. |\n| final void | [notify](../../../../reference/java/lang/Object.html#notify())() Causes a thread which is waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up. |\n| final void | [notifyAll](../../../../reference/java/lang/Object.html#notifyAll())() Causes all threads which are waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up. |\n| [String](../../../../reference/java/lang/String.html) | [toString](../../../../reference/java/lang/Object.html#toString())() Returns a string containing a concise, human-readable description of this object. |\n| final void | [wait](../../../../reference/java/lang/Object.html#wait(long,%20int))(long timeout, int nanos) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires. |\n| final void | [wait](../../../../reference/java/lang/Object.html#wait(long))(long timeout) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires. |\n| final void | [wait](../../../../reference/java/lang/Object.html#wait())() Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object. |\n\nPublic Constructors \n\npublic\n**RSAPrivateCrtKeySpec**\n(BigInteger modulus, BigInteger publicExponent, BigInteger privateExponent, BigInteger primeP, BigInteger primeQ, BigInteger primeExponentP, BigInteger primeExponentQ, BigInteger crtCoefficient) \nCreates a new `RSAPrivateCrtKeySpec`\ngiven the modulus, publicExponent, privateExponent,\nprimeP, primeQ, primeExponentP, primeExponentQ, and\ncrtCoefficient as defined in PKCS#1. \n\nParameters\n\n| modulus | the modulus n |\n| publicExponent | the public exponent e |\n| privateExponent | the private exponent d |\n| primeP | the prime factor p of n |\n| primeQ | the prime factor q of n |\n| primeExponentP | this is d mod (p-1) |\n| primeExponentQ | this is d mod (q-1) |\n| crtCoefficient | the Chinese Remainder Theorem coefficient q-1 mod p |\n|-----------------|-----------------------------------------------------|\n\nPublic Methods \n\npublic BigInteger\n**getCrtCoefficient**\n() \nReturns the crtCoefficient. \n\nReturns\n\n- the crtCoefficient \n\npublic BigInteger\n**getPrimeExponentP**\n() \nReturns the primeExponentP. \n\nReturns\n\n- the primeExponentP \n\npublic BigInteger\n**getPrimeExponentQ**\n() \nReturns the primeExponentQ. \n\nReturns\n\n- the primeExponentQ \n\npublic BigInteger\n**getPrimeP**\n() \nReturns the primeP. \n\nReturns\n\n- the primeP \n\npublic BigInteger\n**getPrimeQ**\n() \nReturns the primeQ. \n\nReturns\n\n- the primeQ \n\npublic BigInteger\n**getPublicExponent**\n() \nReturns the public exponent. \n\nReturns\n\n- the public exponent"]]
