| package org.bouncycastle.asn1.cryptopro; |
| |
| 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.ASN1TaggedObject; |
| import org.bouncycastle.asn1.DEROctetString; |
| import org.bouncycastle.asn1.DERSequence; |
| import org.bouncycastle.asn1.DERTaggedObject; |
| import org.bouncycastle.util.Arrays; |
| |
| /** |
| * <pre> |
| * Gost28147-89-EncryptedKey ::= SEQUENCE { |
| * encryptedKey Gost28147-89-Key, |
| * maskKey [0] IMPLICIT Gost28147-89-Key |
| * OPTIONAL, |
| * macKey Gost28147-89-MAC |
| * } |
| * </pre> |
| */ |
| public class Gost2814789EncryptedKey |
| extends ASN1Object |
| { |
| private final byte[] encryptedKey; |
| private final byte[] maskKey; |
| private final byte[] macKey; |
| |
| private Gost2814789EncryptedKey(ASN1Sequence seq) |
| { |
| if (seq.size() == 2) |
| { |
| encryptedKey = Arrays.clone(ASN1OctetString.getInstance(seq.getObjectAt(0)).getOctets()); |
| macKey = Arrays.clone(ASN1OctetString.getInstance(seq.getObjectAt(1)).getOctets()); |
| maskKey = null; |
| } |
| else if (seq.size() == 3) |
| { |
| encryptedKey = Arrays.clone(ASN1OctetString.getInstance(seq.getObjectAt(0)).getOctets()); |
| maskKey = Arrays.clone(ASN1OctetString.getInstance(ASN1TaggedObject.getInstance(seq.getObjectAt(1)), false).getOctets()); |
| macKey = Arrays.clone(ASN1OctetString.getInstance(seq.getObjectAt(2)).getOctets()); |
| } |
| else |
| { |
| throw new IllegalArgumentException("unknown sequence length: " + seq.size()); |
| } |
| } |
| |
| public static Gost2814789EncryptedKey getInstance( |
| Object obj) |
| { |
| if (obj instanceof Gost2814789EncryptedKey) |
| { |
| return (Gost2814789EncryptedKey)obj; |
| } |
| |
| if (obj != null) |
| { |
| return new Gost2814789EncryptedKey(ASN1Sequence.getInstance(obj)); |
| } |
| |
| return null; |
| } |
| |
| public Gost2814789EncryptedKey(byte[] encryptedKey, byte[] macKey) |
| { |
| this(encryptedKey, null, macKey); |
| } |
| |
| public Gost2814789EncryptedKey(byte[] encryptedKey, byte[] maskKey, byte[] macKey) |
| { |
| this.encryptedKey = Arrays.clone(encryptedKey); |
| this.maskKey = Arrays.clone(maskKey); |
| this.macKey = Arrays.clone(macKey); |
| } |
| |
| public byte[] getEncryptedKey() |
| { |
| return Arrays.clone(encryptedKey); |
| } |
| |
| public byte[] getMaskKey() |
| { |
| return Arrays.clone(maskKey); |
| } |
| |
| public byte[] getMacKey() |
| { |
| return Arrays.clone(macKey); |
| } |
| |
| public ASN1Primitive toASN1Primitive() |
| { |
| ASN1EncodableVector v = new ASN1EncodableVector(); |
| |
| v.add(new DEROctetString(encryptedKey)); |
| if (maskKey != null) |
| { |
| v.add(new DERTaggedObject(false, 0, new DEROctetString(encryptedKey))); |
| } |
| v.add(new DEROctetString(macKey)); |
| |
| return new DERSequence(v); |
| } |
| } |