| package org.bouncycastle.asn1.tsp; |
| |
| import org.bouncycastle.asn1.ASN1Encodable; |
| import org.bouncycastle.asn1.ASN1EncodableVector; |
| import org.bouncycastle.asn1.ASN1OctetString; |
| import org.bouncycastle.asn1.ASN1Sequence; |
| import org.bouncycastle.asn1.DERObject; |
| import org.bouncycastle.asn1.DEROctetString; |
| import org.bouncycastle.asn1.DERSequence; |
| import org.bouncycastle.asn1.x509.AlgorithmIdentifier; |
| |
| public class MessageImprint |
| extends ASN1Encodable |
| { |
| AlgorithmIdentifier hashAlgorithm; |
| byte[] hashedMessage; |
| |
| /** |
| * @param o |
| * @return a MessageImprint object. |
| */ |
| public static MessageImprint getInstance(Object o) |
| { |
| if (o == null || o instanceof MessageImprint) |
| { |
| return (MessageImprint)o; |
| } |
| else if (o instanceof ASN1Sequence) |
| { |
| return new MessageImprint((ASN1Sequence)o); |
| } |
| |
| throw new IllegalArgumentException("Bad object in factory."); |
| } |
| |
| public MessageImprint( |
| ASN1Sequence seq) |
| { |
| this.hashAlgorithm = AlgorithmIdentifier.getInstance(seq.getObjectAt(0)); |
| this.hashedMessage = ASN1OctetString.getInstance(seq.getObjectAt(1)).getOctets(); |
| } |
| |
| public MessageImprint( |
| AlgorithmIdentifier hashAlgorithm, |
| byte[] hashedMessage) |
| { |
| this.hashAlgorithm = hashAlgorithm; |
| this.hashedMessage = hashedMessage; |
| } |
| |
| public AlgorithmIdentifier getHashAlgorithm() |
| { |
| return hashAlgorithm; |
| } |
| |
| public byte[] getHashedMessage() |
| { |
| return hashedMessage; |
| } |
| |
| /** |
| * <pre> |
| * MessageImprint ::= SEQUENCE { |
| * hashAlgorithm AlgorithmIdentifier, |
| * hashedMessage OCTET STRING } |
| * </pre> |
| */ |
| public DERObject toASN1Object() |
| { |
| ASN1EncodableVector v = new ASN1EncodableVector(); |
| |
| v.add(hashAlgorithm); |
| v.add(new DEROctetString(hashedMessage)); |
| |
| return new DERSequence(v); |
| } |
| } |