Name
Class java.security.SignatureSpi
Synopsis
This is the service provider interface for the signature engine. If
you want to implement your own signature engine, you must extend this
class and register your implementation with an appropriate security
provider. Since the Signature
class already
extends this class, your implementation may extend the
Signature
class directly. Implementations of
this class must be prepared both to sign and to verify data that is
passed to the engineUpdate( )
method.
Initialization of the engine may optionally support a set of
algorithm-specific parameters.
Class Definition
public abstract class java.security.SignatureSpi extends java.lang.Object { // Variables protected SecureRandom appRandom; // Constructors public SignatureSpi( ); // Instance Methods public Object clone( ); // Protected Instance Methods protected abstract Object engineGetParameter(String); protected abstract void engineInitSign(PrivateKey); protected void engineInitSign(PrivateKey, SecureRandom); protected abstract void engineInitVerify(PublicKey); protected abstract void engineSetParameter(String, Object); protected void engineSetParameter(AlgorithmParameterSpec); protected abstract byte[] engineSign( ); protected final int engineSign(byte[], int, int); protected abstract void engineUpdate(byte); protected abstract void engineUpdate(byte[], int, int); protected abstract boolean engineVerify(byte[]); }
See also
Provider , Signature
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