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Showing content from https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/security/spec/EncodedKeySpec.html below:

EncodedKeySpec (Java SE 21 & JDK 21)

All Implemented Interfaces:

KeySpec

Direct Known Subclasses:

PKCS8EncodedKeySpec, X509EncodedKeySpec

This class represents a public or private key in encoded format.

Since:

1.2

See Also:

• Key
• KeyFactory
• KeySpec
• X509EncodedKeySpec
• PKCS8EncodedKeySpec

• Constructor Summary

  Constructors

  Creates a new EncodedKeySpec with the given encoded key.

  protected

  Creates a new EncodedKeySpec with the given encoded key.

• Method Summary

  Returns the name of the algorithm of the encoded key.

  byte[]

  Returns the name of the encoding format associated with this key specification.

  Methods declared in class java.lang.Objectclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

• Constructor Details
  • EncodedKeySpec

    public EncodedKeySpec(byte[] encodedKey)

    Creates a new EncodedKeySpec with the given encoded key.

    Parameters:

    encodedKey - the encoded key. The contents of the array are copied to protect against subsequent modification.

    Throws:

    NullPointerException - if encodedKey is null.

  • EncodedKeySpec protected EncodedKeySpec(byte[] encodedKey, String algorithm)

    Creates a new EncodedKeySpec with the given encoded key. This constructor is useful when subsequent callers of the EncodedKeySpec object might not know the algorithm of the key.

    Parameters:

    encodedKey - the encoded key. The contents of the array are copied to protect against subsequent modification.

    algorithm - the algorithm name of the encoded key See the KeyFactory section in the Java Security Standard Algorithm Names Specification for information about standard algorithm names.

    Throws:

    NullPointerException - if encodedKey or algorithm is null.

    IllegalArgumentException - if algorithm is the empty string ""

    Since:

    9

• Method Details
  • getAlgorithm

    Returns the name of the algorithm of the encoded key.

    Returns:

    the name of the algorithm, or null if not specified

    Since:

    9

  • getEncoded

    public byte[] getEncoded()

    Returns the encoded key.

    Returns:

    the encoded key. Returns a new array each time this method is called.

  • getFormat public abstract String getFormat

    ()

    If the opaque representation of a key (see Key) can be transformed (see KeyFactory) into this key specification (or a subclass of it), getFormat called on the opaque key returns the same value as the getFormat method of this key specification.

    Returns:

    a string representation of the encoding format.

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