sun.security.provider

Class DSAPublicKeyImpl

java.lang.Object

sun.security.provider.DSAPublicKeyImpl

public class DSAPublicKeyImpl
extends Object

Constructor Summary

Constructors

Constructor and Description
DSAPublicKeyImpl(BigInteger y, BigInteger p, BigInteger q, BigInteger g) Make a DSA public key out of a public key and three parameters.
DSAPublicKeyImpl(byte[] encoded) Make a DSA public key from its DER encoding (X.509).

Method Summary

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DSAPublicKeyImpl

public DSAPublicKeyImpl(byte[] encoded)
                 throws InvalidKeyException

Make a DSA public key from its DER encoding (X.509).

Throws:

InvalidKeyException

DSAPublicKeyImpl

public DSAPublicKeyImpl(BigInteger y,
                        BigInteger p,
                        BigInteger q,
                        BigInteger g)
                 throws InvalidKeyException

Make a DSA public key out of a public key and three parameters. The p, q, and g parameters may be null, but if so, parameters will need to be supplied from some other source before this key can be used in cryptographic operations. PKIX RFC2459bis explicitly allows DSA public keys without parameters, where the parameters are provided in the issuer's DSA public key.

Parameters:

y - the actual key bits

p - DSA parameter p, may be null if all of p, q, and g are null.

q - DSA parameter q, may be null if all of p, q, and g are null.

g - DSA parameter g, may be null if all of p, q, and g are null.

Throws:

InvalidKeyException