+++ /dev/null
-package org.bouncycastle.asn1.x509;
-
-import org.bouncycastle.crypto.Digest;
-import org.bouncycastle.crypto.digests.SHA1Digest;
-import org.bouncycastle.asn1.*;
-
-/**
- * <pre>
- * SubjectKeyIdentifier::= OCTET STRING
- * </pre>
- */
-public class SubjectKeyIdentifier
- implements DEREncodable
-{
- private byte[] keyidentifier;
-
- public static SubjectKeyIdentifier getInstance(
- ASN1TaggedObject obj,
- boolean explicit)
- {
- return getInstance(ASN1OctetString.getInstance(obj, explicit));
- }
-
- public static SubjectKeyIdentifier getInstance(
- Object obj)
- {
- if(obj == null || obj instanceof SubjectKeyIdentifier)
- {
- return (SubjectKeyIdentifier)obj;
- }
-
- if(obj instanceof SubjectPublicKeyInfo)
- {
- return new SubjectKeyIdentifier((SubjectPublicKeyInfo)obj);
- }
-
- if(obj instanceof ASN1OctetString)
- {
- return new SubjectKeyIdentifier((ASN1OctetString)obj);
- }
-
- throw new IllegalArgumentException("Invalid SubjectKeyIdentifier: " + obj.getClass().getName());
- }
-
- public SubjectKeyIdentifier(
- byte[] keyid)
- {
- this.keyidentifier=keyid;
- }
-
- public SubjectKeyIdentifier(
- ASN1OctetString keyid)
- {
- this.keyidentifier=keyid.getOctets();
-
- }
-
- /**
- *
- * Calulates the keyidentifier using a SHA1 hash over the BIT STRING
- * from SubjectPublicKeyInfo as defined in RFC2459.
- *
- **/
- public SubjectKeyIdentifier(
- SubjectPublicKeyInfo spki)
- {
- Digest digest = new SHA1Digest();
- byte[] resBuf = new byte[digest.getDigestSize()];
-
- byte[] bytes = spki.getPublicKeyData().getBytes();
- digest.update(bytes, 0, bytes.length);
- digest.doFinal(resBuf, 0);
- this.keyidentifier=resBuf;
- }
-
- public byte[] getKeyIdentifier()
- {
- return keyidentifier;
- }
-
- /**
- * <pre>
- * SubjectKeyIdentifier := OCTET STRING
- * </pre>
- */
- public DERObject getDERObject()
- {
- return new DEROctetString(keyidentifier);
- }
-}