net.rim.device.api.crypto
Class NullSignatureVerifier

java.lang.Object
  net.rim.device.api.crypto.NullSignatureVerifier

All Implemented Interfaces:

SignatureVerifier

public final class NullSignatureVerifier
extends Object
implements SignatureVerifier

The NullSignatureVerifier class implements a trivial (ie no) verification algorithm. The methods in this class do not perform any operations on the data.

See Also:

NullSignatureSigner

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

Constructor Summary
	NullSignatureVerifier() Creates a NullSignatureVerifier object.
	NullSignatureVerifier(boolean verify) Creates a NullSignatureVerifier object.

Method Summary
	String	getAlgorithm() Returns the name of the signing algorithm used, ie "Null".
	void	update(byte[] data) Adds additional message data to the signature.
	void	update(byte[] data, int offset, int length) Adds additional message data to the signature.
	void	update(int data) Adds additional message data to the signature.
	boolean	verify() Returns true or false depending on which constructor was invoked.

Methods inherited from class java.lang.Object

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

Constructor Detail

NullSignatureVerifier

public NullSignatureVerifier()

Creates a NullSignatureVerifier object.

verify() will return false.

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

NullSignatureVerifier

public NullSignatureVerifier(boolean verify)

Creates a NullSignatureVerifier object.

This constructor allows the application to set the return value that they would like to see from the verify() method. The value passed into this constructor will be returned in the verify() method.

Parameters:

verify - the boolean that will be returned in the verify() method.

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 Detail

getAlgorithm

public String getAlgorithm()

Returns the name of the signing algorithm used, ie "Null".

Specified by:

getAlgorithm in interface SignatureVerifier

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

public void update(int data)

Description copied from interface: SignatureVerifier

Adds additional message data to the signature.

Specified by:

update in interface SignatureVerifier

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

public void update(byte[] data)

Description copied from interface: SignatureVerifier

Adds additional message data to the signature.

Specified by:

update in interface SignatureVerifier

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

public void update(byte[] data,
                   int offset,
                   int length)

Description copied from interface: SignatureVerifier

Adds additional message data to the signature.

Specified by:

update in interface SignatureVerifier

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

public boolean verify()

Returns true or false depending on which constructor was invoked.

Specified by:

verify in interface SignatureVerifier

Returns:

A boolean that returns true if the signature is valid, false otherwise.

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