issrg.acm.extensions
Class SimpleSigningUtility

java.lang.Object
  issrg.acm.SigningUtility
      issrg.acm.extensions.SimpleSigningUtility

All Implemented Interfaces:

Utility, Signer

Direct Known Subclasses:

ACMDISSigningUtility

public class SimpleSigningUtility
extends SigningUtility

This is a Signing Utility that uses files with PKCS#8 encoded private keys to sign and BER-encoded X.509 PKCs to get the signer information.

Constructor Summary

SimpleSigningUtility()

Method Summary

java.lang.String	getSigningAlgorithmID() This method returns the key-dependent Signing Algorithm used by the Signer.
java.security.cert.X509Certificate	getVerificationCertificate() This method lets the caller get the verification certificate so it can be provided in some form to the signature verifier, or can be used to extract the necessary data to form the correct signature information (signer's name, etc).
boolean	isLoggedIn()
void	login(java.awt.Frame f, java.util.Map m)
void	logout(java.awt.Frame f, java.util.Map m)
byte[]	sign(byte[] b) This method lets the caller sign any data and returns the signature of it.

Methods inherited from class issrg.acm.SigningUtility

registerMe

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleSigningUtility

public SimpleSigningUtility()

Method Detail

getSigningAlgorithmID

public java.lang.String getSigningAlgorithmID()
                                       throws SecurityException

Description copied from interface: Signer

This method returns the key-dependent Signing Algorithm used by the Signer. It is the OID of the algorithm in a dotted form (e.g. "1.2.840.113549.1.1.5" for SHA1withRSAEncryption).

Returns:

the String representation of the Signing Algorithm ID, as an OID

Throws:

SecurityException

logout

public void logout(java.awt.Frame f,
                   java.util.Map m)

Specified by:

logout in class SigningUtility

sign

public byte[] sign(byte[] b)
            throws SecurityException

Description copied from interface: Signer

This method lets the caller sign any data and returns the signature of it.

Parameters:

b - is the binary data to be signed

Returns:

a byte array of the signature

Throws:

SecurityException - if signing fails for whatever reason

getVerificationCertificate

public java.security.cert.X509Certificate getVerificationCertificate()
                                                              throws SecurityException

Description copied from interface: Signer

This method lets the caller get the verification certificate so it can be provided in some form to the signature verifier, or can be used to extract the necessary data to form the correct signature information (signer's name, etc). If the user has got several signing certificates (and corresponding verification certificates), he must select the one to use at the login time, not at this point. This method should not display any GUI.

Returns:

the X509 PKC of the signer

Throws:

SecurityException - if the certificate cannot be returned (for example, a session is not open, or the certificate is not available)

isLoggedIn

public boolean isLoggedIn()

login

public void login(java.awt.Frame f,
                  java.util.Map m)
           throws SecurityException

Specified by:

login in class SigningUtility

Throws:

SecurityException