net.rim.device.api.crypto
Interface SignatureVerifier

All Known Implementing Classes:
DSASignatureVerifier, ECDSASignatureVerifier, ECNRSignatureVerifier, NullSignatureVerifier, PKCS1SignatureVerifier, PSSSignatureVerifier, X931SignatureVerifier

public interface SignatureVerifier

Defines the functions that are required for use with all of the signature verifiers that are implemented in the system.

A more complete description of what each function should perform can be found at the class level for each implementing class.

Category:
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
Since:
BlackBerry API 3.6.0

Method Summary
Category: Signed  String getAlgorithm()
          Returns the name of the signing algorithm used, eg "DSA", "ECDSA", etc.
Category: Signed  void update(byte[] data)
          Adds additional message data to the signature.
Category: Signed  void update(byte[] data, int offset, int length)
          Adds additional message data to the signature.
Category: Signed  void update(int data)
          Adds additional message data to the signature.
Category: Signed  boolean verify()
          Returns true if the signature is valid, false otherwise.
 



Method Detail

getAlgorithm

String getAlgorithm()
Returns the name of the signing algorithm used, eg "DSA", "ECDSA", etc.

Returns:
A String representing the name of the algorithm.
Category:
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
Since:
BlackBerry API 3.6.0

update

void update(int data)
Adds additional message data to the signature.

Parameters:
data - The byte to be hashed.
Category:
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
Since:
BlackBerry API 3.6.0

update

void update(byte[] data)
Adds additional message data to the signature.

Parameters:
data - A byte array containing the message data to hash.
Category:
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
Since:
BlackBerry API 3.6.0

update

void update(byte[] data,
            int offset,
            int length)
Adds additional message data to the signature.

Parameters:
data - The message data to hash.
offset - The offset, or initial position to start reading in the data.
length - The amount of data to read.
Category:
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
Since:
BlackBerry API 3.6.0

verify

boolean verify()
               throws CryptoTokenException,
                      CryptoUnsupportedOperationException
Returns true if the signature is valid, false otherwise.

Returns:
A boolean that returns true if the signature is valid, false otherwise.
Throws:
CryptoTokenException - Thrown when a problem occurs with a crypto token or the crypto token is invalid.
CryptoUnsupportedOperationException - Thrown when a call is made to an unsupported operation.
Category:
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
Since:
BlackBerry API 3.6.0





Copyright 1999-2010 Research In Motion Limited. 295 Phillip Street, Waterloo, Ontario, Canada, N2L 3W8. All Rights Reserved.
Copyright 1993-2003 Sun Microsystems, Inc. 901 San Antonio Road, Palo Alto, California, 94303, U.S.A. All Rights Reserved.
Copyright 2002-2003 Nokia Corporation All Rights Reserved.
Java is a trademark of Sun Microsystems, Inc.