| package org.bouncycastle.asn1.misc; |
| |
| import org.bouncycastle.asn1.*; |
| |
| public class IDEACBCPar |
| extends ASN1Encodable |
| { |
| ASN1OctetString iv; |
| |
| public static IDEACBCPar getInstance( |
| Object o) |
| { |
| if (o instanceof IDEACBCPar) |
| { |
| return (IDEACBCPar)o; |
| } |
| else if (o instanceof ASN1Sequence) |
| { |
| return new IDEACBCPar((ASN1Sequence)o); |
| } |
| |
| throw new IllegalArgumentException("unknown object in IDEACBCPar factory"); |
| } |
| |
| public IDEACBCPar( |
| byte[] iv) |
| { |
| this.iv = new DEROctetString(iv); |
| } |
| |
| public IDEACBCPar( |
| ASN1Sequence seq) |
| { |
| if (seq.size() == 1) |
| { |
| iv = (ASN1OctetString)seq.getObjectAt(0); |
| } |
| else |
| { |
| iv = null; |
| } |
| } |
| |
| public byte[] getIV() |
| { |
| if (iv != null) |
| { |
| return iv.getOctets(); |
| } |
| else |
| { |
| return null; |
| } |
| } |
| |
| /** |
| * Produce an object suitable for an ASN1OutputStream. |
| * <pre> |
| * IDEA-CBCPar ::= SEQUENCE { |
| * iv OCTET STRING OPTIONAL -- exactly 8 octets |
| * } |
| * </pre> |
| */ |
| public DERObject toASN1Object() |
| { |
| ASN1EncodableVector v = new ASN1EncodableVector(); |
| |
| if (iv != null) |
| { |
| v.add(iv); |
| } |
| |
| return new DERSequence(v); |
| } |
| } |