Java in a Nutshell, 5th Edition [Electronic resources] نسخه متنی

This abstract class defines the
service-provider
interface for Signature. A security provider must
implement a concrete subclass of this class for each digital
signature algorithm it supports. Applications never need to use or
subclass this class.

public abstract class

SignatureSpi {
// Public Constructors
public

SignatureSpi ( );
// Public Methods Overriding Object
public Object

clone ( ) throws CloneNotSupportedException;
// Protected Instance Methods

1.4 protected AlgorithmParameters

engineGetParameters ( );
protected abstract void

engineInitSign (PrivateKey

privateKey )
throws InvalidKeyException;
protected void

engineInitSign (PrivateKey

privateKey , SecureRandom

random )
throws InvalidKeyException;
protected abstract void

engineInitVerify (PublicKey

publicKey )
throws InvalidKeyException;
protected void

engineSetParameter (java.security.spec.
AlgorithmParameterSpec

params )
throws InvalidAlgorithmParameterException;
protected abstract byte[ ]

engineSign ( ) throws SignatureException;
protected int

engineSign (byte[ ]

outbuf , int

offset , int

len )
throws SignatureException;

5.0 protected void

engineUpdate (java.nio.ByteBuffer

input );
protected abstract void

engineUpdate (byte

b ) throws SignatureException;
protected abstract void

engineUpdate (byte[ ]

b , int

off , int

len )
throws SignatureException;
protected abstract boolean

engineVerify (byte[ ]

sigBytes )
throws SignatureException;

1.4 protected boolean

engineVerify (byte[ ]

sigBytes , int

offset , int

length )
throws SignatureException;
// Protected Instance Fields
protected SecureRandom

appRandom ;
// Deprecated Protected Methods

# protected abstract Object

engineGetParameter (String

param )
throws InvalidParameterException;

# protected abstract void

engineSetParameter (String

param , Object

value )
throws InvalidParameterException;
}

Subclasses

Signature