SHOW Signed SHOW CryptoExtensionAPI

net.rim.device.api.crypto
Class SkipjackKey

java.lang.Object
  |
  +--net.rim.device.api.crypto.SkipjackKey

All Implemented Interfaces:

Key, Persistable, Persistable, SymmetricKey

public final class SkipjackKey

extends Object

implements SymmetricKey, Persistable

Creates a SkipjackKey object.

Skipjack is an algorithm developed by the National Security Agency (NSA) in the United States. It operates with an 80 bit key length and a 64 bit block length. The specification for Skipjack can be found here.

For information on cryptographic algorithms, see Crypto Algorithms.

Category:

Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.

Since:

JDE 3.6.0

Field Summary

static int

LENGTH Represents the size of the key in bytes, ie 10 bytes.

Constructor Summary

	SkipjackKey() Creates a new random SkipJackKey object and stores the key material in the object.
	SkipjackKey(byte[] data) Creates a SkipjackKey object using as much of the specified data as necessary.
	SkipjackKey(byte[] data, int offset) Creates a SkipjackKey object using as much of the specified data as necessary.
	SkipjackKey(SkipjackCryptoToken cryptoToken, byte[] data, int offset) Creates a SkipjackKey object using as much of the specified data as necessary.
	SkipjackKey(SkipjackCryptoToken cryptoToken, CryptoTokenSymmetricKeyData cryptoTokenData) Creates a SkipjackKey object.

Method Summary

	boolean	equals(Object obj)
	String	getAlgorithm() Returns a String containing the name of the algorithm associated with this key ("Skipjack").
	int	getBitLength()
	CryptoTokenSymmetricKeyData	getCryptoTokenData() Returns the skipjack crypto token data.
	byte[]	getData()
	int	getLength()
	SkipjackCryptoToken	getSkipjackCryptoToken() Returns the skipjack crypto token.
	SymmetricCryptoToken	getSymmetricCryptoToken() Returns the crypto token associated with this key.
	int	hashCode()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Field Detail

LENGTH

public static final int LENGTH

Represents the size of the key in bytes, ie 10 bytes.

Since:

JDE 3.6.0

Category:

Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.

Constructor Detail

SkipjackKey

public SkipjackKey()

Creates a new random SkipJackKey object and stores the key material in the object.

Since:

JDE 3.6.0

Category:

Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.

SkipjackKey

public SkipjackKey(byte[] data)

Creates a SkipjackKey object using as much of the specified data as necessary.

Parameters:

data - The bytes to use as key data.

Since:

JDE 3.6.0

Category:

Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.

SkipjackKey

public SkipjackKey(byte[] data,
                   int offset)

Creates a SkipjackKey object using as much of the specified data as necessary.

Parameters:

data - The bytes to use as key data.

offset - The offset, or initial position, of the key data within the array.

Since:

JDE 3.6.0

Category:

Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.

SkipjackKey

public SkipjackKey(SkipjackCryptoToken cryptoToken,
                   byte[] data,
                   int offset)
            throws CryptoTokenException,
                   CryptoUnsupportedOperationException

Creates a SkipjackKey object using as much of the specified data as necessary.

Parameters:

cryptoToken - The crypto token that protects the key.

data - A byte array containing the bytes to use as key data.

offset - The starting offset of the key data.

Throws:

CryptoTokenException - Thrown if an error occurs with a crypto token or the crypto token is invalid.

CryptoUnsupportedOperationException - Thrown if a call is made to an unsupported operation.

Since:

JDE 3.6.0

Category:

CryptoExtensionAPI: This element is part of the Crypto Extension API. These APIs are intended for parties interested in extending the security provider frameworks, such as integrating a new security medium.
Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.

SkipjackKey

public SkipjackKey(SkipjackCryptoToken cryptoToken,
                   CryptoTokenSymmetricKeyData cryptoTokenData)

Creates a SkipjackKey object.

Parameters:

cryptoToken - The crypto token that protects the key.

cryptoTokenData - The data associated with the crypto token.

Since:

JDE 3.6.0

Category:

CryptoExtensionAPI: This element is part of the Crypto Extension API. These APIs are intended for parties interested in extending the security provider frameworks, such as integrating a new security medium.
Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.

Method Detail

getSymmetricCryptoToken

public SymmetricCryptoToken getSymmetricCryptoToken()

Returns the crypto token associated with this key.

Since:

JDE 3.6.0

Category:

CryptoExtensionAPI: This element is part of the Crypto Extension API. These APIs are intended for parties interested in extending the security provider frameworks, such as integrating a new security medium.
Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.

getSkipjackCryptoToken

public SkipjackCryptoToken getSkipjackCryptoToken()

Returns the skipjack crypto token.

Returns:

A SkipjackCryptoToken.

Since:

JDE 3.6.0

Category:

CryptoExtensionAPI: This element is part of the Crypto Extension API. These APIs are intended for parties interested in extending the security provider frameworks, such as integrating a new security medium.
Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.

getCryptoTokenData

public CryptoTokenSymmetricKeyData getCryptoTokenData()

Returns the skipjack crypto token data.

Returns:

A SkipjackCryptoToken data.

Since:

JDE 3.6.0

Category:

CryptoExtensionAPI: This element is part of the Crypto Extension API. These APIs are intended for parties interested in extending the security provider frameworks, such as integrating a new security medium.
Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.

getAlgorithm

public String getAlgorithm()

Returns a String containing the name of the algorithm associated with this key ("Skipjack").

This method will always return the String "Skipjack".

Returns:

A String that specifies the name of the algorithm.

Since:

JDE 3.6.0

Category:

Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.

getLength

public int getLength()
              throws CryptoTokenException,
                     CryptoUnsupportedOperationException

Description copied from interface: SymmetricKey

Returns the length of the key in bytes.

Since:

JDE 3.6.0

Category:

Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.

getBitLength

public int getBitLength()
                 throws CryptoTokenException,
                        CryptoUnsupportedOperationException

Description copied from interface: SymmetricKey

Returns the number of bits that make up the actual keying material ( for example parity bits are not counted ).

Since:

JDE 3.6.0

Category:

Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.

getData

public byte[] getData()
               throws CryptoTokenException,
                      CryptoUnsupportedOperationException

Description copied from interface: SymmetricKey

Returns a copy of the byte array representing the key.

Since:

JDE 3.6.0

Category:

Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.

hashCode

public int hashCode()

Description copied from class: Object

Returns a hash code value for the object. This method is supported for the benefit of hashtables such as those provided by java.util.Hashtable.

The general contract of hashCode is:

• Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
• If two objects are equal according to the equals(Object) method, then calling the hashCode method on each of the two objects must produce the same integer result.
• It is not required that if two objects are unequal according to the Object.equals(java.lang.Object) method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hashtables.

As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the Java^TM programming language.)

Overrides:

hashCode in class Object

Since:

JDE 3.6.0

Category:

Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.

equals

public boolean equals(Object obj)

Description copied from class: Object

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation:

• It is reflexive: for any reference value x, x.equals(x) should return true.
• It is symmetric: for any reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
• It is transitive: for any reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
• It is consistent: for any reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the object is modified.
• For any non-null reference value x, x.equals(null) should return false.

The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any reference values x and y, this method returns true if and only if x and y refer to the same object (x==y has the value true).

Overrides:

equals in class Object

Since:

JDE 3.6.0

Category:

Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.