| package org.bouncycastle.asn1.pkcs; |
| |
| import java.math.BigInteger; |
| |
| 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.DigestInfo; |
| import org.bouncycastle.util.Arrays; |
| |
| public class MacData |
| extends ASN1Object |
| { |
| private static final BigInteger ONE = BigInteger.valueOf(1); |
| |
| DigestInfo digInfo; |
| byte[] salt; |
| BigInteger iterationCount; |
| |
| public static MacData getInstance( |
| Object obj) |
| { |
| if (obj instanceof MacData) |
| { |
| return (MacData)obj; |
| } |
| else if (obj != null) |
| { |
| return new MacData(ASN1Sequence.getInstance(obj)); |
| } |
| |
| return null; |
| } |
| |
| private MacData( |
| ASN1Sequence seq) |
| { |
| this.digInfo = DigestInfo.getInstance(seq.getObjectAt(0)); |
| |
| this.salt = Arrays.clone(((ASN1OctetString)seq.getObjectAt(1)).getOctets()); |
| |
| if (seq.size() == 3) |
| { |
| this.iterationCount = ((ASN1Integer)seq.getObjectAt(2)).getValue(); |
| } |
| else |
| { |
| this.iterationCount = ONE; |
| } |
| } |
| |
| public MacData( |
| DigestInfo digInfo, |
| byte[] salt, |
| int iterationCount) |
| { |
| this.digInfo = digInfo; |
| this.salt = Arrays.clone(salt); |
| this.iterationCount = BigInteger.valueOf(iterationCount); |
| } |
| |
| public DigestInfo getMac() |
| { |
| return digInfo; |
| } |
| |
| public byte[] getSalt() |
| { |
| return Arrays.clone(salt); |
| } |
| |
| public BigInteger getIterationCount() |
| { |
| return iterationCount; |
| } |
| |
| /** |
| * <pre> |
| * MacData ::= SEQUENCE { |
| * mac DigestInfo, |
| * macSalt OCTET STRING, |
| * iterations INTEGER DEFAULT 1 |
| * -- Note: The default is for historic reasons and its use is deprecated. A |
| * -- higher value, like 1024 is recommended. |
| * </pre> |
| * @return the basic ASN1Primitive construction. |
| */ |
| public ASN1Primitive toASN1Primitive() |
| { |
| ASN1EncodableVector v = new ASN1EncodableVector(); |
| |
| v.add(digInfo); |
| v.add(new DEROctetString(salt)); |
| |
| if (!iterationCount.equals(ONE)) |
| { |
| v.add(new ASN1Integer(iterationCount)); |
| } |
| |
| return new DERSequence(v); |
| } |
| } |