net.rim.device.api.crypto
Class NullSignatureSigner

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

All Implemented Interfaces:

SignatureSigner

public final class NullSignatureSigner
extends Object
implements SignatureSigner

The NullSignatureSigner class implements a trivial (ie no) signing algorithm. The methods in this class do not perform any operations on the data. For information on cryptographic algorithms, see Crypto Algorithms.

See Also:

NullSignatureVerifier

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
	NullSignatureSigner() Constructs a NullSignatureSigner object.

Method Summary
	String	getAlgorithm() Returns the name of the signing algorithm used, ie "Null".
	String	getDigestAlgorithm() Returns the name of the digest algorithm used, ie "Null".
	void	reset() Reinitializes the signer, preparing it to generate another signature.
	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.

Methods inherited from class java.lang.Object

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

Constructor Detail

NullSignatureSigner

public NullSignatureSigner()

Constructs a NullSignatureSigner object.

This constructor does nothing.

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 SignatureSigner

Returns:

A String that represents 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

getDigestAlgorithm

public String getDigestAlgorithm()

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

Specified by:

getDigestAlgorithm in interface SignatureSigner

Returns:

A String that represents 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

reset

public void reset()

Description copied from interface: SignatureSigner

Reinitializes the signer, preparing it to generate another signature.

Specified by:

reset in interface SignatureSigner

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: SignatureSigner

Adds additional message data to the signature.

Specified by:

update in interface SignatureSigner

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: SignatureSigner

Adds additional message data to the signature.

Specified by:

update in interface SignatureSigner

Parameters:

data - 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: SignatureSigner

Adds additional message data to the signature.

Specified by:

update in interface SignatureSigner

Parameters:

data - The message data to hash.

offset - The offset, or the initial position to start reading in the data.

length - How much 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