| package org.bouncycastle.asn1.bc; |
| |
| import org.bouncycastle.asn1.ASN1EncodableVector; |
| 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.pkcs.KeyDerivationFunc; |
| import org.bouncycastle.asn1.x509.AlgorithmIdentifier; |
| import org.bouncycastle.util.Arrays; |
| |
| /** |
| * <pre> |
| * PbkdMacIntegrityCheck ::= SEQUENCE { |
| * macAlgorithm AlgorithmIdentifier, |
| * pbkdAlgorithm KeyDerivationFunc, |
| * mac OCTET STRING |
| * } |
| * </pre> |
| */ |
| public class PbkdMacIntegrityCheck |
| extends ASN1Object |
| { |
| private final AlgorithmIdentifier macAlgorithm; |
| private final KeyDerivationFunc pbkdAlgorithm; |
| private final ASN1OctetString mac; |
| |
| public PbkdMacIntegrityCheck(AlgorithmIdentifier macAlgorithm, KeyDerivationFunc pbkdAlgorithm, byte[] mac) |
| { |
| this.macAlgorithm = macAlgorithm; |
| this.pbkdAlgorithm = pbkdAlgorithm; |
| this.mac = new DEROctetString(Arrays.clone(mac)); |
| } |
| |
| private PbkdMacIntegrityCheck(ASN1Sequence seq) |
| { |
| this.macAlgorithm = AlgorithmIdentifier.getInstance(seq.getObjectAt(0)); |
| this.pbkdAlgorithm = KeyDerivationFunc.getInstance(seq.getObjectAt(1)); |
| this.mac = ASN1OctetString.getInstance(seq.getObjectAt(2)); |
| } |
| |
| public static PbkdMacIntegrityCheck getInstance(Object o) |
| { |
| if (o instanceof PbkdMacIntegrityCheck) |
| { |
| return (PbkdMacIntegrityCheck)o; |
| } |
| else if (o != null) |
| { |
| return new PbkdMacIntegrityCheck(ASN1Sequence.getInstance(o)); |
| } |
| |
| return null; |
| } |
| |
| public AlgorithmIdentifier getMacAlgorithm() |
| { |
| return macAlgorithm; |
| } |
| |
| public KeyDerivationFunc getPbkdAlgorithm() |
| { |
| return pbkdAlgorithm; |
| } |
| |
| public byte[] getMac() |
| { |
| return Arrays.clone(mac.getOctets()); |
| } |
| |
| public ASN1Primitive toASN1Primitive() |
| { |
| ASN1EncodableVector v = new ASN1EncodableVector(); |
| |
| v.add(macAlgorithm); |
| v.add(pbkdAlgorithm); |
| v.add(mac); |
| |
| return new DERSequence(v); |
| } |
| } |