public class

SubjectKeyIdentifier

extends ASN1Encodable
java.lang.Object
   ↳ org.bouncycastle.asn1.ASN1Encodable
     ↳ org.bouncycastle.asn1.x509.SubjectKeyIdentifier
Known Direct Subclasses

Class Overview

The SubjectKeyIdentifier object. 

 SubjectKeyIdentifier::= OCTET STRING

Summary

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Inherited Constants
From class org.bouncycastle.asn1.ASN1Encodable
Public Constructors
SubjectKeyIdentifier(byte[] keyid)
SubjectKeyIdentifier(ASN1OctetString keyid)
SubjectKeyIdentifier(SubjectPublicKeyInfo spki)
Calculates the keyidentifier using a SHA1 hash over the BIT STRING from SubjectPublicKeyInfo as defined in RFC3280.
Public Methods
static SubjectKeyIdentifier createSHA1KeyIdentifier(SubjectPublicKeyInfo keyInfo)
Return a RFC 3280 type 1 key identifier.
static SubjectKeyIdentifier createTruncatedSHA1KeyIdentifier(SubjectPublicKeyInfo keyInfo)
Return a RFC 3280 type 2 key identifier.
static SubjectKeyIdentifier getInstance(ASN1TaggedObject obj, boolean explicit)
static SubjectKeyIdentifier getInstance(Object obj)
byte[] getKeyIdentifier()
DERObject toASN1Object()
[Expand]
Inherited Methods
From class org.bouncycastle.asn1.ASN1Encodable
From class java.lang.Object
From interface org.bouncycastle.asn1.DEREncodable

Public Constructors

public SubjectKeyIdentifier (byte[] keyid)

public SubjectKeyIdentifier (ASN1OctetString keyid)

public SubjectKeyIdentifier (SubjectPublicKeyInfo spki)

Calculates the keyidentifier using a SHA1 hash over the BIT STRING from SubjectPublicKeyInfo as defined in RFC3280.

Parameters
spki the subject public key info.

Public Methods

public static SubjectKeyIdentifier createSHA1KeyIdentifier (SubjectPublicKeyInfo keyInfo)

Return a RFC 3280 type 1 key identifier. As in: 

 (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).

Parameters
keyInfo the key info object containing the subjectPublicKey field.
Returns
  • the key identifier.

public static SubjectKeyIdentifier createTruncatedSHA1KeyIdentifier (SubjectPublicKeyInfo keyInfo)

Return a RFC 3280 type 2 key identifier. As in: 

 (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.

Parameters
keyInfo the key info object containing the subjectPublicKey field.
Returns
  • the key identifier.

public static SubjectKeyIdentifier getInstance (ASN1TaggedObject obj, boolean explicit)

public static SubjectKeyIdentifier getInstance (Object obj)

public byte[] getKeyIdentifier ()

public DERObject toASN1Object ()