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package org.bouncycastle.asn1.cmp;
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;
public class PBMParameter
extends ASN1Object
{
private ASN1OctetString salt;
private AlgorithmIdentifier owf;
private ASN1Integer iterationCount;
private AlgorithmIdentifier mac;
private PBMParameter(ASN1Sequence seq)
{
salt = ASN1OctetString.getInstance(seq.getObjectAt(0));
owf = AlgorithmIdentifier.getInstance(seq.getObjectAt(1));
iterationCount = ASN1Integer.getInstance(seq.getObjectAt(2));
mac = AlgorithmIdentifier.getInstance(seq.getObjectAt(3));
}
public static PBMParameter getInstance(Object o)
{
if (o instanceof PBMParameter)
{
return (PBMParameter)o;
}
if (o != null)
{
return new PBMParameter(ASN1Sequence.getInstance(o));
}
return null;
}
public PBMParameter(
byte[] salt,
AlgorithmIdentifier owf,
int iterationCount,
AlgorithmIdentifier mac)
{
this(new DEROctetString(salt), owf,
new ASN1Integer(iterationCount), mac);
}
public PBMParameter(
ASN1OctetString salt,
AlgorithmIdentifier owf,
ASN1Integer iterationCount,
AlgorithmIdentifier mac)
{
this.salt = salt;
this.owf = owf;
this.iterationCount = iterationCount;
this.mac = mac;
}
public ASN1OctetString getSalt()
{
return salt;
}
public AlgorithmIdentifier getOwf()
{
return owf;
}
public ASN1Integer getIterationCount()
{
return iterationCount;
}
public AlgorithmIdentifier getMac()
{
return mac;
}
/**
* <pre>
* PBMParameter ::= SEQUENCE {
* salt OCTET STRING,
* -- note: implementations MAY wish to limit acceptable sizes
* -- of this string to values appropriate for their environment
* -- in order to reduce the risk of denial-of-service attacks
* owf AlgorithmIdentifier,
* -- AlgId for a One-Way Function (SHA-1 recommended)
* iterationCount INTEGER,
* -- number of times the OWF is applied
* -- note: implementations MAY wish to limit acceptable sizes
* -- of this integer to values appropriate for their environment
* -- in order to reduce the risk of denial-of-service attacks
* mac AlgorithmIdentifier
* -- the MAC AlgId (e.g., DES-MAC, Triple-DES-MAC [PKCS11],
* } -- or HMAC [RFC2104, RFC2202])
* </pre>
* @return a basic ASN.1 object representation.
*/
public ASN1Primitive toASN1Primitive()
{
ASN1EncodableVector v = new ASN1EncodableVector();
v.add(salt);
v.add(owf);
v.add(iterationCount);
v.add(mac);
return new DERSequence(v);
}
}
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