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package javax.crypto.spec;
import java.math.BigInteger;
import java.security.spec.KeySpec;
/**
* This class specifies a Diffie-Hellman public key with its associated parameters.
*
* @see DHPrivateKeySpec
*/
public class DHPublicKeySpec
implements KeySpec
{
private BigInteger y;
private BigInteger p;
private BigInteger g;
/**
* Constructor that takes a public value <code>y</code>, a prime
* modulus <code>p</code>, and a base generator <code>g</code>.
*/
public DHPublicKeySpec(
BigInteger y,
BigInteger p,
BigInteger g)
{
this.y = y;
this.p = p;
this.g = g;
}
/**
* Returns the public value <code>y</code>.
*
* @return the public value <code>y</code>
*/
public BigInteger getY()
{
return y;
}
/**
* Returns the prime modulus <code>p</code>.
*
* @return the prime modulus <code>p</code>
*/
public BigInteger getP()
{
return p;
}
/**
* Returns the base generator <code>g</code>.
*
* @return the base generator <code>g</code>
*/
public BigInteger getG()
{
return g;
}
}
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