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

KeyRep (Java SE 21 & JDK 21)

All Implemented Interfaces:

Serializable

Note that a serialized Key may contain sensitive information which should not be exposed in untrusted environments. See the Security Appendix of the Java Object Serialization Specification for more information.

Since:

1.5

See Also:

• Key
• KeyFactory
• SecretKeySpec
• X509EncodedKeySpec
• PKCS8EncodedKeySpec
• Serialized Form

• Nested Class Summary

  Nested Classes

• Constructor Summary

  Constructors

  Construct the alternate Key class.

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

• Constructor Details
  • KeyRep

    Construct the alternate Key class.

    Parameters:

    type - either one of Type.SECRET, Type.PUBLIC, or Type.PRIVATE

    algorithm - the algorithm returned from Key.getAlgorithm()

    format - the encoding format returned from Key.getFormat()

    encoded - the encoded bytes returned from Key.getEncoded()

    Throws:

    NullPointerException - if type is null, if algorithm is null, if format is null, or if encoded is null

• Method Details
  • readResolve

    Resolve the Key object.

    This method supports three Type/format combinations:

    • Type.SECRET/"RAW" - returns a SecretKeySpec object constructed using encoded key bytes and algorithm
    • Type.PUBLIC/"X.509" - gets a KeyFactory instance for the key algorithm, constructs an X509EncodedKeySpec with the encoded key bytes, and generates a public key from the spec
    • Type.PRIVATE/"PKCS#8" - gets a KeyFactory instance for the key algorithm, constructs a PKCS8EncodedKeySpec with the encoded key bytes, and generates a private key from the spec

    Returns:

    the resolved Key object

    Throws:

    ObjectStreamException - if the Type/format combination is unrecognized, if the algorithm, key format, or encoded key bytes are unrecognized/invalid, of if the resolution of the key fails for any reason

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