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The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.8. Note: this package includes the NTRU encryption algorithms.

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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;

/**
 * 
 * PbkdMacIntegrityCheck ::= SEQUENCE {
 *     macAlgorithm AlgorithmIdentifier,
 *     pbkdAlgorithm KeyDerivationFunc,
 *     mac OCTET STRING
 * }
 * 
*/ 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); } }




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