| /* GENERATED SOURCE. DO NOT MODIFY. */ |
| package com.android.org.bouncycastle.asn1.x9; |
| |
| import java.math.BigInteger; |
| |
| import com.android.org.bouncycastle.asn1.ASN1Integer; |
| import com.android.org.bouncycastle.asn1.ASN1Object; |
| import com.android.org.bouncycastle.asn1.ASN1Primitive; |
| import com.android.org.bouncycastle.asn1.ASN1TaggedObject; |
| |
| /** |
| * X9.42 definition of a DHPublicKey |
| * <pre> |
| * DHPublicKey ::= INTEGER |
| * </pre> |
| * @hide This class is not part of the Android public SDK API |
| */ |
| public class DHPublicKey |
| extends ASN1Object |
| { |
| private ASN1Integer y; |
| |
| /** |
| * Return a DHPublicKey from the passed in tagged object. |
| * |
| * @param obj a tagged object. |
| * @param explicit true if the contents of the object is explictly tagged, false otherwise. |
| * @return a DHPublicKey |
| */ |
| public static DHPublicKey getInstance(ASN1TaggedObject obj, boolean explicit) |
| { |
| return getInstance(ASN1Integer.getInstance(obj, explicit)); |
| } |
| |
| /** |
| * Return a DHPublicKey from the passed in object. |
| * |
| * @param obj an object for conversion or a byte[]. |
| * @return a DHPublicKey |
| */ |
| public static DHPublicKey getInstance(Object obj) |
| { |
| if (obj == null || obj instanceof DHPublicKey) |
| { |
| return (DHPublicKey)obj; |
| } |
| |
| if (obj instanceof ASN1Integer) |
| { |
| return new DHPublicKey((ASN1Integer)obj); |
| } |
| |
| throw new IllegalArgumentException("Invalid DHPublicKey: " + obj.getClass().getName()); |
| } |
| |
| private DHPublicKey(ASN1Integer y) |
| { |
| if (y == null) |
| { |
| throw new IllegalArgumentException("'y' cannot be null"); |
| } |
| |
| this.y = y; |
| } |
| |
| /** |
| * Base constructor. |
| * |
| * @param y the public value Y. |
| */ |
| public DHPublicKey(BigInteger y) |
| { |
| if (y == null) |
| { |
| throw new IllegalArgumentException("'y' cannot be null"); |
| } |
| |
| this.y = new ASN1Integer(y); |
| } |
| |
| /** |
| * Return the public value Y for the key. |
| * |
| * @return the Y value. |
| */ |
| public BigInteger getY() |
| { |
| return this.y.getPositiveValue(); |
| } |
| |
| /** |
| * Return an ASN.1 primitive representation of this object. |
| * |
| * @return an ASN1Integer. |
| */ |
| public ASN1Primitive toASN1Primitive() |
| { |
| return this.y; |
| } |
| } |