| package org.bouncycastle.asn1.crmf; |
| |
| import org.bouncycastle.asn1.ASN1EncodableVector; |
| import org.bouncycastle.asn1.ASN1Object; |
| import org.bouncycastle.asn1.ASN1OctetString; |
| import org.bouncycastle.asn1.ASN1Primitive; |
| import org.bouncycastle.asn1.ASN1Sequence; |
| import org.bouncycastle.asn1.DEROctetString; |
| import org.bouncycastle.asn1.DERSequence; |
| import org.bouncycastle.asn1.cms.IssuerAndSerialNumber; |
| import org.bouncycastle.util.Arrays; |
| |
| /** |
| * From RFC 2875 for Diffie-Hellman POP. |
| * <pre> |
| * DhSigStatic ::= SEQUENCE { |
| * IssuerAndSerial IssuerAndSerialNumber OPTIONAL, |
| * hashValue MessageDigest |
| * } |
| * </pre> |
| */ |
| public class DhSigStatic |
| extends ASN1Object |
| { |
| private final IssuerAndSerialNumber issuerAndSerial; |
| private final ASN1OctetString hashValue; |
| |
| public DhSigStatic(byte[] hashValue) |
| { |
| this(null, hashValue); |
| } |
| |
| public DhSigStatic(IssuerAndSerialNumber issuerAndSerial, byte[] hashValue) |
| { |
| this.issuerAndSerial = issuerAndSerial; |
| this.hashValue = new DEROctetString(Arrays.clone(hashValue)); |
| } |
| |
| public static DhSigStatic getInstance(Object o) |
| { |
| if (o instanceof DhSigStatic) |
| { |
| return (DhSigStatic)o; |
| } |
| else if (o != null) |
| { |
| return new DhSigStatic(ASN1Sequence.getInstance(o)); |
| } |
| |
| return null; |
| } |
| |
| private DhSigStatic(ASN1Sequence seq) |
| { |
| if (seq.size() == 1) |
| { |
| issuerAndSerial = null; |
| hashValue = ASN1OctetString.getInstance(seq.getObjectAt(0)); |
| } |
| else if (seq.size() == 2) |
| { |
| issuerAndSerial = IssuerAndSerialNumber.getInstance(seq.getObjectAt(0)); |
| hashValue = ASN1OctetString.getInstance(seq.getObjectAt(1)); |
| } |
| else |
| { |
| throw new IllegalArgumentException("sequence wrong length for DhSigStatic"); |
| } |
| } |
| |
| public IssuerAndSerialNumber getIssuerAndSerial() |
| { |
| return issuerAndSerial; |
| } |
| |
| public byte[] getHashValue() |
| { |
| return Arrays.clone(hashValue.getOctets()); |
| } |
| |
| public ASN1Primitive toASN1Primitive() |
| { |
| ASN1EncodableVector v = new ASN1EncodableVector(); |
| |
| if (issuerAndSerial != null) |
| { |
| v.add(issuerAndSerial); |
| } |
| |
| v.add(hashValue); |
| |
| return new DERSequence(v); |
| } |
| } |