Class X509EncodedKeySpec

java.lang.Object
java.security.spec.EncodedKeySpec
java.security.spec.X509EncodedKeySpec
All Implemented Interfaces:
BinaryEncodablePREVIEW, KeySpec
public non-sealed class X509EncodedKeySpec extends EncodedKeySpec implements BinaryEncodablePREVIEW
This class represents the ASN.1 encoding of a public key, encoded according to the ASN.1 type SubjectPublicKeyInfo. The SubjectPublicKeyInfo syntax is defined in the X.509 standard as follows: 
SubjectPublicKeyInfo ::= SEQUENCE {
  algorithm AlgorithmIdentifier,
  subjectPublicKey BIT STRING }
Since:
1.2
See Also:

  • Constructor Summary

    Constructors
    Constructor
    Description
    X509EncodedKeySpec(byte[] encodedKey)
    Creates a new X509EncodedKeySpec with the given encoded key.
    X509EncodedKeySpec(byte[] encodedKey, String algorithm)
    Creates a new X509EncodedKeySpec with the given encoded key.

  • Method Summary

    Modifier and Type
    Method
    Description
    byte[]
    getEncoded()
    Returns the key bytes, encoded according to the X.509 standard.
    final String
    getFormat()
    Returns the name of the encoding format associated with this key specification.

    Methods declared in class EncodedKeySpec

    getAlgorithm
    Modifier and Type
    Method
    Description
    String
    getAlgorithm()
    Returns the name of the algorithm of the encoded key.

    Methods declared in class Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    Modifier and Type
    Method
    Description
    protected Object
    clone()
    Answers a new instance of the same class as the receiver, whose slots have been filled in with the values in the slots of the receiver.
    boolean
    equals(Object o)
    Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison.
    protected void
    finalize()
    Deprecated, for removal: This API element is subject to removal in a future version.
    May cause performance issues, deadlocks and hangs.
    final Class<? extends Object>
    getClass()
    Answers the unique instance of java.lang.Class which represents the class of the receiver.
    int
    hashCode()
    Answers an integer hash code for the receiver.
    final void
    notify()
    Causes one thread which is waiting on the receiver to be made ready to run.
    final void
    notifyAll()
    Causes all threads which are waiting on the receiver to be made ready to run.
    String
    toString()
    Answers a string containing a concise, human-readable description of the receiver.
    final void
    wait()
    Causes the thread which sent this message to be made not ready to run pending some change in the receiver (as indicated by notify or notifyAll).
    final void
    wait(long time)
    Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.
    final void
    wait(long time, int frac)
    Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.

  • Constructor Details

    • X509EncodedKeySpec

      public X509EncodedKeySpec(byte[] encodedKey)
      Creates a new X509EncodedKeySpec with the given encoded key.
      Parameters:
      encodedKey - the key, which is assumed to be encoded according to the X.509 standard. The contents of the array are copied to protect against subsequent modification.
      Throws:
      NullPointerException - if encodedKey is null.

    • X509EncodedKeySpec

      public X509EncodedKeySpec(byte[] encodedKey, String algorithm)
      Creates a new X509EncodedKeySpec with the given encoded key. This constructor is useful when subsequent callers of the X509EncodedKeySpec object might not know the algorithm of the key.
      Parameters:
      encodedKey - the key, which is assumed to be encoded according to the X.509 standard. The contents of the array are copied to protect against subsequent modification.
      algorithm - the algorithm name of the encoded public key. See the AsymmetricKey Algorithms section in the Java Security Standard Algorithm Names Specification for information about standard asymmetric key algorithm names.
      Throws:
      NullPointerException - if encodedKey or algorithm is null.
      IllegalArgumentException - if algorithm is the empty string ""
      Since:
      9
      External Specifications

  • Method Details

    • getEncoded

      public byte[] getEncoded()
      Returns the key bytes, encoded according to the X.509 standard.
      Overrides:
      getEncoded in class EncodedKeySpec
      Returns:
      the X.509 encoding of the key. Returns a new array each time this method is called.

    • getFormat

      public final String getFormat()
      Returns the name of the encoding format associated with this key specification.
      Specified by:
      getFormat in class EncodedKeySpec
      Returns:
      the string "X.509".