/** Get the encoding of the key. */
public synchronized byte[] getEncoded() {
if (this.encodedKey == null) {
try {
DerOutputStream algid = new DerOutputStream();
// store oid in algid
algid.putOID(new ObjectIdentifier(DH_data));
// encode parameters
DerOutputStream params = new DerOutputStream();
params.putInteger(this.p);
params.putInteger(this.g);
if (this.l != 0) params.putInteger(this.l);
// wrap parameters into SEQUENCE
DerValue paramSequence = new DerValue(DerValue.tag_Sequence, params.toByteArray());
// store parameter SEQUENCE in algid
algid.putDerValue(paramSequence);
// wrap algid into SEQUENCE, and store it in key encoding
DerOutputStream tmpDerKey = new DerOutputStream();
tmpDerKey.write(DerValue.tag_Sequence, algid);
// store key data
tmpDerKey.putBitString(this.key);
// wrap algid and key into SEQUENCE
DerOutputStream derKey = new DerOutputStream();
derKey.write(DerValue.tag_Sequence, tmpDerKey);
this.encodedKey = derKey.toByteArray();
} catch (IOException e) {
return null;
}
}
return (byte[]) this.encodedKey.clone();
}
