package com.google.bitcoin.bouncycastle.asn1.tsp; import com.google.bitcoin.bouncycastle.asn1.ASN1Encodable; import com.google.bitcoin.bouncycastle.asn1.ASN1EncodableVector; import com.google.bitcoin.bouncycastle.asn1.ASN1InputStream; import com.google.bitcoin.bouncycastle.asn1.ASN1OctetString; import com.google.bitcoin.bouncycastle.asn1.ASN1Sequence; import com.google.bitcoin.bouncycastle.asn1.ASN1TaggedObject; import com.google.bitcoin.bouncycastle.asn1.DERBoolean; import com.google.bitcoin.bouncycastle.asn1.DERGeneralizedTime; import com.google.bitcoin.bouncycastle.asn1.DERInteger; import com.google.bitcoin.bouncycastle.asn1.DERObject; import com.google.bitcoin.bouncycastle.asn1.DERObjectIdentifier; import com.google.bitcoin.bouncycastle.asn1.DERSequence; import com.google.bitcoin.bouncycastle.asn1.DERTaggedObject; import com.google.bitcoin.bouncycastle.asn1.x509.GeneralName; import com.google.bitcoin.bouncycastle.asn1.x509.X509Extensions; import java.io.IOException; import java.util.Enumeration; public class TSTInfo extends ASN1Encodable { DERInteger version; DERObjectIdentifier tsaPolicyId; MessageImprint messageImprint; DERInteger serialNumber; DERGeneralizedTime genTime; Accuracy accuracy; DERBoolean ordering; DERInteger nonce; GeneralName tsa; X509Extensions extensions; public static TSTInfo getInstance(Object o) { if (o == null || o instanceof TSTInfo) { return (TSTInfo) o; } else if (o instanceof ASN1Sequence) { return new TSTInfo((ASN1Sequence) o); } else if (o instanceof ASN1OctetString) { try { return getInstance(new ASN1InputStream(((ASN1OctetString)o).getOctets()).readObject()); } catch (IOException ioEx) { throw new IllegalArgumentException( "Bad object format in 'TSTInfo' factory."); } } throw new IllegalArgumentException( "Unknown object in 'TSTInfo' factory : " + o.getClass().getName() + "."); } public TSTInfo(ASN1Sequence seq) { Enumeration e = seq.getObjects(); // version version = DERInteger.getInstance(e.nextElement()); // tsaPolicy tsaPolicyId = DERObjectIdentifier.getInstance(e.nextElement()); // messageImprint messageImprint = MessageImprint.getInstance(e.nextElement()); // serialNumber serialNumber = DERInteger.getInstance(e.nextElement()); // genTime genTime = DERGeneralizedTime.getInstance(e.nextElement()); // default for ordering ordering = new DERBoolean(false); while (e.hasMoreElements()) { DERObject o = (DERObject) e.nextElement(); if (o instanceof ASN1TaggedObject) { DERTaggedObject tagged = (DERTaggedObject) o; switch (tagged.getTagNo()) { case 0: tsa = GeneralName.getInstance(tagged, true); break; case 1: extensions = X509Extensions.getInstance(tagged, false); break; default: throw new IllegalArgumentException("Unknown tag value " + tagged.getTagNo()); } } else if (o instanceof DERSequence) { accuracy = Accuracy.getInstance(o); } else if (o instanceof DERBoolean) { ordering = DERBoolean.getInstance(o); } else if (o instanceof DERInteger) { nonce = DERInteger.getInstance(o); } } } public TSTInfo(DERObjectIdentifier tsaPolicyId, MessageImprint messageImprint, DERInteger serialNumber, DERGeneralizedTime genTime, Accuracy accuracy, DERBoolean ordering, DERInteger nonce, GeneralName tsa, X509Extensions extensions) { version = new DERInteger(1); this.tsaPolicyId = tsaPolicyId; this.messageImprint = messageImprint; this.serialNumber = serialNumber; this.genTime = genTime; this.accuracy = accuracy; this.ordering = ordering; this.nonce = nonce; this.tsa = tsa; this.extensions = extensions; } public MessageImprint getMessageImprint() { return messageImprint; } public DERObjectIdentifier getPolicy() { return tsaPolicyId; } public DERInteger getSerialNumber() { return serialNumber; } public Accuracy getAccuracy() { return accuracy; } public DERGeneralizedTime getGenTime() { return genTime; } public DERBoolean getOrdering() { return ordering; } public DERInteger getNonce() { return nonce; } public GeneralName getTsa() { return tsa; } public X509Extensions getExtensions() { return extensions; } /** * <pre> * * TSTInfo ::= SEQUENCE { * version INTEGER { v1(1) }, * policy TSAPolicyId, * messageImprint MessageImprint, * -- MUST have the same value as the similar field in * -- TimeStampReq * serialNumber INTEGER, * -- Time-Stamping users MUST be ready to accommodate integers * -- up to 160 bits. * genTime GeneralizedTime, * accuracy Accuracy OPTIONAL, * ordering BOOLEAN DEFAULT FALSE, * nonce INTEGER OPTIONAL, * -- MUST be present if the similar field was present * -- in TimeStampReq. In that case it MUST have the same value. * tsa [0] GeneralName OPTIONAL, * extensions [1] IMPLICIT Extensions OPTIONAL } * * </pre> */ public DERObject toASN1Object() { ASN1EncodableVector seq = new ASN1EncodableVector(); seq.add(version); seq.add(tsaPolicyId); seq.add(messageImprint); seq.add(serialNumber); seq.add(genTime); if (accuracy != null) { seq.add(accuracy); } if (ordering != null && ordering.isTrue()) { seq.add(ordering); } if (nonce != null) { seq.add(nonce); } if (tsa != null) { seq.add(new DERTaggedObject(true, 0, tsa)); } if (extensions != null) { seq.add(new DERTaggedObject(false, 1, extensions)); } return new DERSequence(seq); } }