sun.security.x509

Class KeyIdentifier

java.lang.Object

sun.security.x509.KeyIdentifier

public class KeyIdentifier
extends java.lang.Object

Represent the Key Identifier ASN.1 object.

Author:

Amit Kapoor, Hemma Prafullchandra

Constructor Summary

Constructors

Constructor and Description
KeyIdentifier(byte[] octetString) Create a KeyIdentifier with the passed bit settings.
KeyIdentifier(DerValue val) Create a KeyIdentifier from the DER encoded value.
KeyIdentifier(java.security.PublicKey pubKey) Creates a KeyIdentifier from a public-key value.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(java.lang.Object other) Indicates whether some other object is "equal to" this one.
byte[]	getIdentifier() Return the value of the KeyIdentifier as byte array.
int	hashCode() Returns a hash code value for this object.
java.lang.String	toString() Returns a printable representation of the KeyUsage.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

KeyIdentifier

public KeyIdentifier(byte[] octetString)

Create a KeyIdentifier with the passed bit settings.

Parameters:

octetString - the octet string identifying the key identifier.

KeyIdentifier

public KeyIdentifier(DerValue val)
              throws java.io.IOException

Create a KeyIdentifier from the DER encoded value.

Parameters:

val - the DerValue

Throws:

java.io.IOException

KeyIdentifier

public KeyIdentifier(java.security.PublicKey pubKey)
              throws java.io.IOException

Creates a KeyIdentifier from a public-key value.

From RFC2459: Two common methods for generating key identifiers from the public key are:

1. The keyIdentifier is composed of the 160-bit SHA-1 hash of the value of the BIT STRING subjectPublicKey (excluding the tag, length, and number of unused bits).

2. The keyIdentifier is composed of a four bit type field with the value 0100 followed by the least significant 60 bits of the SHA-1 hash of the value of the BIT STRING subjectPublicKey.

This method supports method 1.

Parameters:

pubKey - the public key from which to construct this KeyIdentifier

Throws:

java.io.IOException - on parsing errors

Method Detail

getIdentifier

public byte[] getIdentifier()

Return the value of the KeyIdentifier as byte array.

toString

public java.lang.String toString()

Returns a printable representation of the KeyUsage.

Overrides:

toString in class java.lang.Object

hashCode

public int hashCode()

Returns a hash code value for this object. Objects that are equal will also have the same hashcode.

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object other)

Indicates whether some other object is "equal to" this one.

Overrides:

equals in class java.lang.Object