sun.security.x509
Class KeyIdentifier

java.lang.Object
  sun.security.x509.KeyIdentifier

public class KeyIdentifier
extends Object

Represent the Key Identifier ASN.1 object.

Constructor Summary

KeyIdentifier(byte[] octetString)
Create a KeyIdentifier with the passed bit settings.

KeyIdentifier(DerValue val)
Create a KeyIdentifier from the DER encoded value.

KeyIdentifier(PublicKey pubKey)
Creates a KeyIdentifier from a public-key value.

Method Summary

boolean	equals(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.
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 IOException

Create a KeyIdentifier from the DER encoded value.

Parameters:

val - the DerValue

Throws:

IOException

KeyIdentifier

public KeyIdentifier(PublicKey pubKey)
              throws 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:

IOException - on parsing errors

Method Detail

getIdentifier

public byte[] getIdentifier()

Return the value of the KeyIdentifier as byte array.

toString

public String toString()

Returns a printable representation of the KeyUsage.

Overrides:

toString in class Object

Returns:

a string representation of the 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 Object

Returns:

a hash code value for this object.

See Also:

Object.equals(java.lang.Object), Hashtable

equals

public boolean equals(Object other)

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

Overrides:

equals in class Object

Parameters:

other - the reference object with which to compare.

Returns:

true if this object is the same as the obj argument; false otherwise.

See Also:

Object.hashCode(), Hashtable