Package org.apache.harmony.security.provider.crypto

Class DSAPublicKeyImpl

java.lang.Object

org.apache.harmony.security.PublicKeyImpl

org.apache.harmony.security.provider.crypto.DSAPublicKeyImpl

All Implemented Interfaces:

Serializable, DSAKey, DSAPublicKey, Key, PublicKey

public class DSAPublicKeyImpl
extends PublicKeyImpl
implements DSAPublicKey

The class provides DSAPublicKey functionality by extending a class implementing PublicKey and implementing methods defined in both interfaces, DSAKey and DSAPublicKey

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
DSAPublicKeyImpl(DSAPublicKeySpec keySpec)	Creates object from DSAPublicKeySpec.
DSAPublicKeyImpl(X509EncodedKeySpec keySpec)	Creates object from X509EncodedKeySpec.

Method Summary

Modifier and Type	Method	Description
DSAParams	getParams()	Returns the DSA key parameters.
BigInteger	getY()	Returns the public key value y.

Methods inherited from class org.apache.harmony.security.PublicKeyImpl

getAlgorithm, getEncoded, getFormat, setAlgorithm, setEncoding

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.security.Key

getAlgorithm, getEncoded, getFormat

Constructor Details

DSAPublicKeyImpl

public DSAPublicKeyImpl(DSAPublicKeySpec keySpec)

Creates object from DSAPublicKeySpec.

Parameters:

keySpec - - a DSAPublicKeySpec object

DSAPublicKeyImpl

public DSAPublicKeyImpl(X509EncodedKeySpec keySpec)
                 throws InvalidKeySpecException

Creates object from X509EncodedKeySpec.

Parameters:

keySpec - - a X509EncodedKeySpec object

Throws:

InvalidKeySpecException - - if key data cannot be obtain from encoded format

Method Details

getY

public BigInteger getY()

Description copied from interface: DSAPublicKey

Returns the public key value y.

Specified by:

getY in interface DSAPublicKey

Returns:

a value of a public key (y).

getParams

public DSAParams getParams()

Description copied from interface: DSAKey

Returns the DSA key parameters.

Specified by:

getParams in interface DSAKey

Returns:

DSA key parameters (p, q, g).