SHOW Signed SHOW CryptoExtensionAPI
 

net.rim.device.api.crypto
Class HMACKey

java.lang.Object
  |
  +--net.rim.device.api.crypto.HMACKey
All Implemented Interfaces:
Key, Persistable, Persistable, SymmetricKey

public final class HMACKey
extends Object
implements SymmetricKey, Persistable

Creates an HMAC key. 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

Constructor Summary
 Category: Signed HMACKey()
          Creates a new random HMACKey object of size 128 bits.
 Category: Signed HMACKey(byte[] data)
          Creates an HMACKey object using the provided data.
 Category: Signed HMACKey(byte[] data, int offset, int length)
          Creates a key using the provided data.
 Category: CryptoExtensionAPI Category: Signed HMACKey(HMACCryptoToken cryptoToken, byte[] data, int offset, int length)
          Creates a key using the provided data.
 Category: CryptoExtensionAPI Category: Signed HMACKey(HMACCryptoToken cryptoToken, CryptoTokenMACKeyData cryptoTokenData)
          Creates an HMACKey object using the specified crypto token and crypto token data.
 Category: CryptoExtensionAPI Category: Signed HMACKey(HMACCryptoToken cryptoToken, int length)
          Creates a new random HMACKey object.
 Category: Signed HMACKey(int length)
          Creates a new random HMACKey object.
 
Method Summary
 Category: Signed  boolean equals(Object obj)
          Indicates whether some other object is "equal to" this one.
 Category: Signed  String getAlgorithm()
          Returns the name of the algorithm associated with this key ("HMAC").
 Category: Signed  int getBitLength()
          Returns the number of bits that make up the actual keying material ( for example parity bits are not counted ).
 Category: CryptoExtensionAPI Category: Signed  CryptoTokenMACKeyData getCryptoTokenData()
          Returns the crypto token MAC key data used to create the key.
 Category: Signed  byte[] getData()
          Returns a copy of the byte array representing the key.
 Category: CryptoExtensionAPI Category: Signed  HMACCryptoToken getHMACCryptoToken()
          Returns the HMAC crypto token used to create the key.
 Category: Signed  int getLength()
          Returns the length of the key in bytes.
 Category: CryptoExtensionAPI Category: Signed  SymmetricCryptoToken getSymmetricCryptoToken()
          Returns the crypto token associated with this key.
 Category: Signed  int hashCode()
          Returns a hash code value for the object.
 
Methods inherited from class java.lang.Object
getClass, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

HMACKey

public HMACKey()
Creates a new random HMACKey object of size 128 bits.
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.

HMACKey

public HMACKey(byte[] data)
Creates an HMACKey object using the provided data.

Parameters:
data - The key to use for the HMACKey.
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.

HMACKey

public HMACKey(byte[] data,
               int offset,
               int length)
Creates a key using the provided data.

Parameters:
data - A byte array containing the key to use for the HMACKey.
offset - The offset, or starting position, of the data withiin the array.
length - Determines how many bytes to read from data.
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.

HMACKey

public HMACKey(HMACCryptoToken cryptoToken,
               byte[] data,
               int offset,
               int length)
        throws CryptoTokenException,
               CryptoUnsupportedOperationException
Creates a key using the provided data.

Parameters:
cryptoToken - The token that protects the key.
data - A byte array containing the key to use for the HMACKey.
offset - The offset, or start position, of the data within the array.
length - The length, or number of bytes, to read from 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 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.

HMACKey

public HMACKey(HMACCryptoToken cryptoToken,
               CryptoTokenMACKeyData cryptoTokenData)
Creates an HMACKey object using the specified crypto token and crypto token data.

Parameters:
cryptoToken - The crypto tokne used to create the key.
cryptoTokenData - The associated crypto token 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 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.

HMACKey

public HMACKey(HMACCryptoToken cryptoToken,
               int length)
        throws CryptoTokenException,
               CryptoUnsupportedOperationException
Creates a new random HMACKey object.

Parameters:
cryptoToken - The token that protects the key.
length - The length of the HMAC key in bytes.
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 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.

HMACKey

public HMACKey(int length)
Creates a new random HMACKey object.

Parameters:
length - An integer that specifies the length of the HMAC key in bytes.
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

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

Following copied from class: Object
Parameters:
obj - the reference object with which to compare.
Returns:
true if this object is the same as the obj argument; false otherwise.
See Also:
Boolean.hashCode(), Hashtable
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.

getAlgorithm

public String getAlgorithm()
Returns the name of the algorithm associated with this key ("HMAC").

This method will always return the String "HMAC".

Since:
JDE 3.6.0

Following copied from interface: Key
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.

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

Following copied from interface: SymmetricKey
Returns:
An integer that represents the number of bits in the key.
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.

getCryptoTokenData

public CryptoTokenMACKeyData getCryptoTokenData()
Returns the crypto token MAC key data used to create the key.

Returns:
The CryptoTokenMACKeyData object used to create the 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 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.

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

Following copied from interface: SymmetricKey
Returns:
A byte array containing the key.
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.

getHMACCryptoToken

public HMACCryptoToken getHMACCryptoToken()
Returns the HMAC crypto token used to create the key.

Returns:
The HMACCryptoToken object used to create the 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 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.

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

Following copied from interface: SymmetricKey
Returns:
An integer that represents the number of bytes.
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.

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 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.

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 JavaTM programming language.)

Overrides:
hashCode in class Object
Since:
JDE 3.6.0

Following copied from class: Object
Returns:
a hash code value for this object.
See Also:
Object.equals(java.lang.Object), Hashtable
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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