SHOW Signed
 

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.

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:
JDE 3.6.0
See Also:
NullSignatureVerifier

Constructor Summary
 Category: Signed NullSignatureSigner()
          Constructs a NullSignatureSigner object.
 
Method Summary
 Category: Signed  String getAlgorithm()
          Returns the name of the signing algorithm used, ie "Null".
 Category: Signed  String getDigestAlgorithm()
          Returns the name of the digest algorithm used, ie "Null".
 Category: Signed  void reset()
          Reinitializes the signer, preparing it to generate another signature.
 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.
 
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.

Since:
JDE 3.6.0
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.
Method Detail

getAlgorithm

public String getAlgorithm()
Returns the name of the signing algorithm used, ie "Null".

Returns:
A String that represents the name of the algorithm.
Since:
JDE 3.6.0
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.

getDigestAlgorithm

public String getDigestAlgorithm()
Returns the name of the digest algorithm used, ie "Null".
Since:
JDE 3.6.0

Following copied from 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.

reset

public void reset()
Description copied from interface: SignatureSigner
Reinitializes the signer, preparing it to generate another signature.
Since:
JDE 3.6.0
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.

update

public void update(byte[] data)
Description copied from interface: SignatureSigner
Adds additional message data to the signature.

Since:
JDE 3.6.0

Following copied from 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.

update

public void update(byte[] data,
                   int offset,
                   int length)
Description copied from interface: SignatureSigner
Adds additional message data to the signature.

Since:
JDE 3.6.0

Following copied from 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.

update

public void update(int data)
Description copied from interface: SignatureSigner
Adds additional message data to the signature.

Since:
JDE 3.6.0

Following copied from 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.



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