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The Bouncy Castle Java APIs for CMS, PKCS, EAC, TSP, CMP, CRMF, OCSP, and certificate generation. This jar
contains APIs for JDK 1.5 and up. The APIs can be used in conjunction with a JCE/JCA provider such as the one
provided with the Bouncy Castle Cryptography APIs.
package org.bouncycastle.asn1.cmp;
import java.util.Enumeration;
import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1GeneralizedTime;
import org.bouncycastle.asn1.ASN1Integer;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1OctetString;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1TaggedObject;
import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.asn1.DERTaggedObject;
import org.bouncycastle.asn1.x500.X500Name;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
import org.bouncycastle.asn1.x509.GeneralName;
public class PKIHeader
extends ASN1Object
{
/**
* Value for a "null" recipient or sender.
*/
public static final GeneralName NULL_NAME = new GeneralName(X500Name.getInstance(new DERSequence()));
public static final int CMP_1999 = 1;
public static final int CMP_2000 = 2;
private ASN1Integer pvno;
private GeneralName sender;
private GeneralName recipient;
private ASN1GeneralizedTime messageTime;
private AlgorithmIdentifier protectionAlg;
private ASN1OctetString senderKID; // KeyIdentifier
private ASN1OctetString recipKID; // KeyIdentifier
private ASN1OctetString transactionID;
private ASN1OctetString senderNonce;
private ASN1OctetString recipNonce;
private PKIFreeText freeText;
private ASN1Sequence generalInfo;
private PKIHeader(ASN1Sequence seq)
{
Enumeration en = seq.getObjects();
pvno = ASN1Integer.getInstance(en.nextElement());
sender = GeneralName.getInstance(en.nextElement());
recipient = GeneralName.getInstance(en.nextElement());
while (en.hasMoreElements())
{
ASN1TaggedObject tObj = (ASN1TaggedObject)en.nextElement();
switch (tObj.getTagNo())
{
case 0:
messageTime = ASN1GeneralizedTime.getInstance(tObj, true);
break;
case 1:
protectionAlg = AlgorithmIdentifier.getInstance(tObj, true);
break;
case 2:
senderKID = ASN1OctetString.getInstance(tObj, true);
break;
case 3:
recipKID = ASN1OctetString.getInstance(tObj, true);
break;
case 4:
transactionID = ASN1OctetString.getInstance(tObj, true);
break;
case 5:
senderNonce = ASN1OctetString.getInstance(tObj, true);
break;
case 6:
recipNonce = ASN1OctetString.getInstance(tObj, true);
break;
case 7:
freeText = PKIFreeText.getInstance(tObj, true);
break;
case 8:
generalInfo = ASN1Sequence.getInstance(tObj, true);
break;
default:
throw new IllegalArgumentException("unknown tag number: " + tObj.getTagNo());
}
}
}
public static PKIHeader getInstance(Object o)
{
if (o instanceof PKIHeader)
{
return (PKIHeader)o;
}
if (o != null)
{
return new PKIHeader(ASN1Sequence.getInstance(o));
}
return null;
}
public PKIHeader(
int pvno,
GeneralName sender,
GeneralName recipient)
{
this(new ASN1Integer(pvno), sender, recipient);
}
private PKIHeader(
ASN1Integer pvno,
GeneralName sender,
GeneralName recipient)
{
this.pvno = pvno;
this.sender = sender;
this.recipient = recipient;
}
public ASN1Integer getPvno()
{
return pvno;
}
public GeneralName getSender()
{
return sender;
}
public GeneralName getRecipient()
{
return recipient;
}
public ASN1GeneralizedTime getMessageTime()
{
return messageTime;
}
public AlgorithmIdentifier getProtectionAlg()
{
return protectionAlg;
}
public ASN1OctetString getSenderKID()
{
return senderKID;
}
public ASN1OctetString getRecipKID()
{
return recipKID;
}
public ASN1OctetString getTransactionID()
{
return transactionID;
}
public ASN1OctetString getSenderNonce()
{
return senderNonce;
}
public ASN1OctetString getRecipNonce()
{
return recipNonce;
}
public PKIFreeText getFreeText()
{
return freeText;
}
public InfoTypeAndValue[] getGeneralInfo()
{
if (generalInfo == null)
{
return null;
}
InfoTypeAndValue[] results = new InfoTypeAndValue[generalInfo.size()];
for (int i = 0; i < results.length; i++)
{
results[i]
= InfoTypeAndValue.getInstance(generalInfo.getObjectAt(i));
}
return results;
}
/**
*
* PKIHeader ::= SEQUENCE {
* pvno INTEGER { cmp1999(1), cmp2000(2) },
* sender GeneralName,
* -- identifies the sender
* recipient GeneralName,
* -- identifies the intended recipient
* messageTime [0] GeneralizedTime OPTIONAL,
* -- time of production of this message (used when sender
* -- believes that the transport will be "suitable"; i.e.,
* -- that the time will still be meaningful upon receipt)
* protectionAlg [1] AlgorithmIdentifier OPTIONAL,
* -- algorithm used for calculation of protection bits
* senderKID [2] KeyIdentifier OPTIONAL,
* recipKID [3] KeyIdentifier OPTIONAL,
* -- to identify specific keys used for protection
* transactionID [4] OCTET STRING OPTIONAL,
* -- identifies the transaction; i.e., this will be the same in
* -- corresponding request, response, certConf, and PKIConf
* -- messages
* senderNonce [5] OCTET STRING OPTIONAL,
* recipNonce [6] OCTET STRING OPTIONAL,
* -- nonces used to provide replay protection, senderNonce
* -- is inserted by the creator of this message; recipNonce
* -- is a nonce previously inserted in a related message by
* -- the intended recipient of this message
* freeText [7] PKIFreeText OPTIONAL,
* -- this may be used to indicate context-specific instructions
* -- (this field is intended for human consumption)
* generalInfo [8] SEQUENCE SIZE (1..MAX) OF
* InfoTypeAndValue OPTIONAL
* -- this may be used to convey context-specific information
* -- (this field not primarily intended for human consumption)
* }
*
*
* @return a basic ASN.1 object representation.
*/
public ASN1Primitive toASN1Primitive()
{
ASN1EncodableVector v = new ASN1EncodableVector(12);
v.add(pvno);
v.add(sender);
v.add(recipient);
addOptional(v, 0, messageTime);
addOptional(v, 1, protectionAlg);
addOptional(v, 2, senderKID);
addOptional(v, 3, recipKID);
addOptional(v, 4, transactionID);
addOptional(v, 5, senderNonce);
addOptional(v, 6, recipNonce);
addOptional(v, 7, freeText);
addOptional(v, 8, generalInfo);
return new DERSequence(v);
}
private void addOptional(ASN1EncodableVector v, int tagNo, ASN1Encodable obj)
{
if (obj != null)
{
v.add(new DERTaggedObject(true, tagNo, obj));
}
}
}