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The Bouncy Castle Java APIs for ASN.1 extension and utility APIs used to support bcpkix and bctls. This jar contains APIs for JDK 1.8 and up.
package org.bouncycastle.asn1.cmp;
import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.ASN1EncodableVector;
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.ASN1Util;
import org.bouncycastle.asn1.BERTags;
import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.asn1.DERTaggedObject;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
/*
*
* KemOtherInfo ::= SEQUENCE {
* staticString PKIFreeText, -- MUST be "CMP-KEM"
* transactionID [0] OCTET STRING OPTIONAL,
* senderNonce [1] OCTET STRING OPTIONAL,
* recipNonce [2] OCTET STRING OPTIONAL,
* len INTEGER (1..MAX),
* mac AlgorithmIdentifier{MAC-ALGORITHM, {...}}
* ct OCTET STRING
* }
*
*/
public class KemOtherInfo
extends ASN1Object
{
private static final PKIFreeText DEFAULT_staticString = new PKIFreeText("CMP-KEM");
private final PKIFreeText staticString;
private final ASN1OctetString transactionID;
private final ASN1OctetString senderNonce;
private final ASN1OctetString recipNonce;
private final ASN1Integer len;
private final AlgorithmIdentifier mac;
private final ASN1OctetString ct;
public KemOtherInfo(
ASN1OctetString transactionID,
ASN1OctetString senderNonce,
ASN1OctetString recipNonce,
ASN1Integer len,
AlgorithmIdentifier mac,
ASN1OctetString ct)
{
this.staticString = DEFAULT_staticString;
this.transactionID = transactionID;
this.senderNonce = senderNonce;
this.recipNonce = recipNonce;
this.len = len;
this.mac = mac;
this.ct = ct;
}
public KemOtherInfo(
ASN1OctetString transactionID,
ASN1OctetString senderNonce,
ASN1OctetString recipNonce,
long len,
AlgorithmIdentifier mac,
ASN1OctetString ct)
{
this(transactionID, senderNonce, recipNonce, new ASN1Integer(len), mac, ct);
}
private KemOtherInfo(ASN1Sequence seq)
{
if (seq.size() < 4 || seq.size() > 7)
{
throw new IllegalArgumentException("sequence size should be between 4 and 7 inclusive");
}
int seqPos = 0;
this.staticString = PKIFreeText.getInstance(seq.getObjectAt(seqPos));
if (!DEFAULT_staticString.equals(staticString))
{
throw new IllegalArgumentException("staticString field should be " + DEFAULT_staticString);
}
ASN1OctetString transactionID = null;
ASN1OctetString senderNonce = null;
ASN1OctetString recipNonce = null;
ASN1TaggedObject tagged = tryGetTagged(seq, ++seqPos);
if (tagged != null)
{
ASN1Primitive _transactionID = ASN1Util.tryGetContextBaseUniversal(tagged, 0, true, BERTags.OCTET_STRING);
if (_transactionID != null)
{
transactionID = (ASN1OctetString)_transactionID;
tagged = tryGetTagged(seq, ++seqPos);
}
}
if (tagged != null)
{
ASN1Primitive _senderNonce = ASN1Util.tryGetContextBaseUniversal(tagged, 1, true, BERTags.OCTET_STRING);
if (_senderNonce != null)
{
senderNonce = (ASN1OctetString)_senderNonce;
tagged = tryGetTagged(seq, ++seqPos);
}
}
if (tagged != null)
{
ASN1Primitive _recipNonce = ASN1Util.tryGetContextBaseUniversal(tagged, 2, true, BERTags.OCTET_STRING);
if (_recipNonce != null)
{
recipNonce = (ASN1OctetString)_recipNonce;
tagged = tryGetTagged(seq, ++seqPos);
}
}
if (tagged != null)
{
throw new IllegalArgumentException("unknown tag: " + ASN1Util.getTagText(tagged));
}
this.transactionID = transactionID;
this.senderNonce = senderNonce;
this.recipNonce = recipNonce;
this.len = ASN1Integer.getInstance(seq.getObjectAt(seqPos));
this.mac = AlgorithmIdentifier.getInstance(seq.getObjectAt(++seqPos));
this.ct = ASN1OctetString.getInstance(seq.getObjectAt(++seqPos));
if (++seqPos != seq.size())
{
throw new IllegalArgumentException("unexpected data at end of sequence");
}
}
public static KemOtherInfo getInstance(Object o)
{
if (o instanceof KemOtherInfo)
{
return (KemOtherInfo)o;
}
if (o != null)
{
return new KemOtherInfo(ASN1Sequence.getInstance(o));
}
return null;
}
public ASN1OctetString getTransactionID()
{
return transactionID;
}
public ASN1OctetString getSenderNonce()
{
return senderNonce;
}
public ASN1OctetString getRecipNonce()
{
return recipNonce;
}
public ASN1Integer getLen()
{
return len;
}
public AlgorithmIdentifier getMac()
{
return mac;
}
public ASN1OctetString getCt()
{
return ct;
}
/**
*
* KemOtherInfo ::= SEQUENCE {
* staticString PKIFreeText, -- MUST be "CMP-KEM"
* transactionID [0] OCTET STRING OPTIONAL,
* senderNonce [1] OCTET STRING OPTIONAL,
* recipNonce [2] OCTET STRING OPTIONAL,
* len INTEGER (1..MAX),
* mac AlgorithmIdentifier{MAC-ALGORITHM, {...}}
* ct OCTET STRING
* }
*
*
* @return a basic ASN.1 object representation.
*/
public ASN1Primitive toASN1Primitive()
{
ASN1EncodableVector v = new ASN1EncodableVector(7);
v.add(staticString);
addOptional(v, 0, transactionID);
addOptional(v, 1, senderNonce);
addOptional(v, 2, recipNonce);
v.add(len);
v.add(mac);
v.add(ct);
return new DERSequence(v);
}
private static void addOptional(ASN1EncodableVector v, int tagNo, ASN1Encodable obj)
{
if (obj != null)
{
v.add(new DERTaggedObject(true, tagNo, obj));
}
}
private static ASN1TaggedObject tryGetTagged(ASN1Sequence seq, int seqPos)
{
ASN1Encodable element = seq.getObjectAt(seqPos);
return element instanceof ASN1TaggedObject ? (ASN1TaggedObject)element : null;
}
}