org.bouncycastle.asn1.cmp.Challenge Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of bcutil-jdk15to18 Show documentation
Show all versions of bcutil-jdk15to18 Show documentation
The Bouncy Castle Java APIs for ASN.1 extension and utility APIs used to support bcpkix and bctls. This jar contains APIs for JDK 1.5 to JDK 1.8.
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.DEROctetString;
import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
import org.bouncycastle.asn1.x509.GeneralName;
/**
*
* Challenge ::= SEQUENCE {
* owf AlgorithmIdentifier OPTIONAL,
*
* -- MUST be present in the first Challenge; MAY be omitted in
* -- any subsequent Challenge in POPODecKeyChallContent (if
* -- omitted, then the owf used in the immediately preceding
* -- Challenge is to be used).
*
* witness OCTET STRING,
* -- the result of applying the one-way function (owf) to a
* -- randomly-generated INTEGER, A. [Note that a different
* -- INTEGER MUST be used for each Challenge.]
* challenge OCTET STRING
* -- the encryption (under the public key for which the cert.
* -- request is being made) of Rand, where Rand is specified as
* -- Rand ::= SEQUENCE {
* -- int INTEGER,
* -- - the randomly-generated INTEGER A (above)
* -- sender GeneralName
* -- - the sender's name (as included in PKIHeader)
* -- }
* }
*
*/
public class Challenge
extends ASN1Object
{
private AlgorithmIdentifier owf;
private final ASN1OctetString witness;
private final ASN1OctetString challenge;
private Challenge(ASN1Sequence seq)
{
int index = 0;
if (seq.size() == 3)
{
owf = AlgorithmIdentifier.getInstance(seq.getObjectAt(index++));
}
witness = ASN1OctetString.getInstance(seq.getObjectAt(index++));
challenge = ASN1OctetString.getInstance(seq.getObjectAt(index));
}
public Challenge(byte[] witness, byte[] challenge)
{
this(null, witness, challenge);
}
public Challenge(AlgorithmIdentifier owf, byte[] witness, byte[] challenge)
{
this.owf = owf;
this.witness = new DEROctetString(witness);
this.challenge = new DEROctetString(challenge);
}
public static Challenge getInstance(Object o)
{
if (o instanceof Challenge)
{
return (Challenge)o;
}
if (o != null)
{
return new Challenge(ASN1Sequence.getInstance(o));
}
return null;
}
public AlgorithmIdentifier getOwf()
{
return owf;
}
public byte[] getWitness()
{
return witness.getOctets();
}
public byte[] getChallenge()
{
return challenge.getOctets();
}
/**
*
* Challenge ::= SEQUENCE {
* owf AlgorithmIdentifier OPTIONAL,
*
* -- MUST be present in the first Challenge; MAY be omitted in
* -- any subsequent Challenge in POPODecKeyChallContent (if
* -- omitted, then the owf used in the immediately preceding
* -- Challenge is to be used).
*
* witness OCTET STRING,
* -- the result of applying the one-way function (owf) to a
* -- randomly-generated INTEGER, A. [Note that a different
* -- INTEGER MUST be used for each Challenge.]
* challenge OCTET STRING
* -- the encryption (under the public key for which the cert.
* -- request is being made) of Rand, where Rand is specified as
* -- Rand ::= SEQUENCE {
* -- int INTEGER,
* -- - the randomly-generated INTEGER A (above)
* -- sender GeneralName
* -- - the sender's name (as included in PKIHeader)
* -- }
* }
*
*
* @return a basic ASN.1 object representation.
*/
public ASN1Primitive toASN1Primitive()
{
ASN1EncodableVector v = new ASN1EncodableVector(3);
addOptional(v, owf);
v.add(witness);
v.add(challenge);
return new DERSequence(v);
}
private void addOptional(ASN1EncodableVector v, ASN1Encodable obj)
{
if (obj != null)
{
v.add(obj);
}
}
/**
* Rand is the inner type
*/
public static class Rand
extends ASN1Object
{
private final ASN1Integer _int;
private final GeneralName sender;
public Rand(ASN1Integer _int, GeneralName sender)
{
this._int = _int;
this.sender = sender;
}
public Rand(ASN1Sequence seq)
{
if (seq.size() != 2)
{
throw new IllegalArgumentException("expected sequence size of 2");
}
this._int = ASN1Integer.getInstance(seq.getObjectAt(0));
this.sender = GeneralName.getInstance(seq.getObjectAt(1));
}
public static Rand getInstance(Object o)
{
if (o instanceof Rand)
{
return (Rand)o;
}
if (o != null)
{
return new Rand(ASN1Sequence.getInstance(o));
}
return null;
}
public ASN1Integer getInt()
{
return _int;
}
public GeneralName getSender()
{
return sender;
}
public ASN1Primitive toASN1Primitive()
{
return new DERSequence(new ASN1Encodable[]{_int, sender});
}
}
}