public class SubjectKeyIdentifier
implements DEREncodable
{
- private byte[] keyidentifier;
+ 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)
{
}
public SubjectKeyIdentifier(
- DEROctetString keyid)
+ ASN1OctetString keyid)
{
- this.keyidentifier=keyid.getOctets();
+ 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()];
+ /**
+ *
+ * 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()];
- DERBitString derpk = new DERBitString(spki.getPublicKey());
- byte[] bytes = derpk.getBytes();
- digest.update(bytes, 0, bytes.length);
- digest.doFinal(resBuf, 0);
- this.keyidentifier=resBuf;
- }
+ byte[] bytes = spki.getPublicKeyData().getBytes();
+ digest.update(bytes, 0, bytes.length);
+ digest.doFinal(resBuf, 0);
+ this.keyidentifier=resBuf;
+ }
public byte[] getKeyIdentifier()
{
*/
public DERObject getDERObject()
{
- DEROctetString oct = new DEROctetString(keyidentifier);
- return oct;
+ return new DEROctetString(keyidentifier);
}
}