com.sun.identity.federation.services.util

Interface SignatureProviderSPI

All Known Implementing Classes:

FSSignatureProvider

public interface SignatureProviderSPI

This is an interface to be implemented to sign and verify signature.

Method Summary

Modifier and Type	Method and Description
KeyProvider	getKeyProvider() Returns the key provider.
void	initialize(KeyProvider keyProvider) Initializes the key provider.
byte[]	signBuffer(String data, String certAlias) Signs a string using enveloped signatures and default signature algorithm.
byte[]	signBuffer(String data, String certAlias, String algorithm) Signs a string using enveloped signatures.
boolean	verifySignature(String data, byte[] signature, String algorithm, X509Certificate cert) Verifies the signature of a signed string.

Method Detail

initialize

void initialize(KeyProvider keyProvider)

Initializes the key provider.

Parameters:

keyProvider - KeyProvider object

signBuffer

byte[] signBuffer(String data,
                  String certAlias)
           throws FSSignatureException

Signs a string using enveloped signatures and default signature algorithm.

Parameters:

data - string that needs to be signed

certAlias - Signer's certificate alias name

Returns:

byte array which contains signature Element object

Throws:

FSSignatureException - if an error occurred during the signing process

signBuffer

byte[] signBuffer(String data,
                  String certAlias,
                  String algorithm)
           throws FSSignatureException

Signs a string using enveloped signatures.

Parameters:

data - string that needs to be signed

certAlias - Signer's certificate alias name

algorithm - signing algorithm

Returns:

byte array which contains signature Element object

Throws:

FSSignatureException - if an error occurred during the signing process

verifySignature

boolean verifySignature(String data,
                        byte[] signature,
                        String algorithm,
                        X509Certificate cert)
                 throws FSSignatureException

Verifies the signature of a signed string.

Parameters:

data - string whose signature to be verified

signature - signature in byte array

algorithm - signing algorithm

cert - certificate for Signer's certificate.

Returns:

true if the xml signature is verified; false otherwise

Throws:

FSSignatureException - if problem occurs during verification

getKeyProvider

KeyProvider getKeyProvider()

Returns the key provider.

Returns:

KeyProvider instance