This class is a generic, opaque
representation of the parameters used by some cryptographic
algorithm. You can create an instance of the class with one of the
static getInstance( ) factory methods, specifying
the desired algorithm and, optionally, the desired provider. The
default "SUN" provider supports the
"DSA" algorithm. The
"SunJCE" provider shipped with the
JCE supports "DES",
"DESede",
"PBE",
"Blowfish", and
"DiffieHellman". Once you have
obtained an AlgorithmParameters object, initialize
it by passing an algorithm-specific
java.security.spec.AlgorithmParameterSpec object
or the encoded parameter values as a byte array to the init(
) method. You can also create an
AlgorithmParameters object with an
AlgorithmParameterGenerator.
getEncoded( ) returns
the initialized algorithm parameters as a byte array, using either
the algorithm-specific default encoding or the named encoding format
you specified.
public class
AlgorithmParameters {
// Protected Constructors
protected
AlgorithmParameters (AlgorithmParametersSpi
paramSpi , Provider
provider , String
algorithm );
// Public Class Methods
public static AlgorithmParameters
getInstance (String
algorithm )
throws NoSuchAlgorithmException;
public static AlgorithmParameters
getInstance (String
algorithm ,
String
provider ) throws NoSuchAlgorithmException, NoSuchProviderException;
1.4 public static AlgorithmParameters
getInstance (String
algorithm , Provider
provider )
throws NoSuchAlgorithmException;
// Public Instance Methods
public final String
getAlgorithm ( );
public final byte[ ]
getEncoded ( ) throws java.io.IOException;
public final byte[ ]
getEncoded (String
format ) throws java.io.IOException;
public final <T extends java.security.spec.AlgorithmParameterSpec>
T
getParameterSpec (Class<T>
paramSpec ) throws java.security.spec.
InvalidParameterSpecException;
public final Provider
getProvider ( );
public final void
init (java.security.spec.AlgorithmParameterSpec
paramSpec )
throws java.security.spec.InvalidParameterSpecException;
public final void
init (byte[ ]
params ) throws java.io.IOException;
public final void
init (byte[ ]
params , String
format )
throws java.io.IOException;
// Public Methods Overriding Object
public final String
toString ( );
}
javax.crypto.Cipher.init( ),
javax.crypto.CipherSpi.engineInit( ),
javax.crypto.EncryptedPrivateKeyInfo.EncryptedPrivateKeyInfo(
), javax.crypto.ExemptionMechanism.init(
), javax.crypto.ExemptionMechanismSpi.engineInit(
)
AlgorithmParameterGenerator.generateParameters( ),
AlgorithmParameterGeneratorSpi.engineGenerateParameters(
), Signature.getParameters( ),
SignatureSpi.engineGetParameters( ),
javax.crypto.Cipher.getParameters( ),
javax.crypto.CipherSpi.engineGetParameters( ),
javax.crypto.EncryptedPrivateKeyInfo.getAlgParameters(
)