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## org.bouncycastle.asn1.x9
Class DHPublicKey

    java.lang.Object
      org.bouncycastle.asn1.ASN1Object
          org.bouncycastle.asn1.x9.DHPublicKey

All Implemented Interfaces:
  ASN1Encodable, Encodable

public class DHPublicKey
extends ASN1Object

X9.42 definition of a DHPublicKey DHPublicKey ::= INTEGER

Constructor Summary
`DHPublicKey(java.math.BigInteger y)` Base constructor.

Method Summary
`static DHPublicKey` | `getInstance(ASN1TaggedObject obj, boolean explicit)` Return a DHPublicKey from the passed in tagged object.
`static DHPublicKey` | `getInstance(java.lang.Object obj)` Return a DHPublicKey from the passed in object.
`java.math.BigInteger` | `getY()` Return the public value Y for the key.
`ASN1Primitive` | `toASN1Primitive()` Return an ASN.1 primitive representation of this object.

Methods inherited from class org.bouncycastle.asn1.ASN1Object
`encodeTo, encodeTo, equals, getEncoded, getEncoded, hasEncodedTagValue, hashCode`

Methods inherited from class java.lang.Object
`clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### DHPublicKey

    public DHPublicKey(java.math.BigInteger y)

  Base constructor.

Parameters:
  `y` - the public value Y.

Method Detail

### getInstance

    public static DHPublicKey getInstance(ASN1TaggedObject obj,
                                          boolean explicit)

  Return a DHPublicKey from the passed in tagged object.

  Parameters:
    `obj` - a tagged object.
    `explicit` - true if the contents of the object is explictly tagged, false otherwise.
  Returns:
    a DHPublicKey

### getInstance

    public static DHPublicKey getInstance(java.lang.Object obj)

  Return a DHPublicKey from the passed in object.

  Parameters:
    `obj` - an object for conversion or a byte[].
  Returns:
    a DHPublicKey

### getY

    public java.math.BigInteger getY()

  Return the public value Y for the key.

  Returns:
    the Y value.

### toASN1Primitive

    public ASN1Primitive toASN1Primitive()

  Return an ASN.1 primitive representation of this object.

  Specified by:
    `toASN1Primitive` in interface `ASN1Encodable`
  Specified by:
    `toASN1Primitive` in class `ASN1Object`
  Returns:
    an ASN1Integer.

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