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net.rim.device.api.crypto
Class KEAPublicKey

java.lang.Object
  |
  +--net.rim.device.api.crypto.KEAPublicKey
All Implemented Interfaces:
KEAKey, Key, Persistable, Persistable, PublicKey

public final class KEAPublicKey
extends Object
implements KEAKey, PublicKey, Persistable

Represents a public key in a Key Exchange Algorithm (KEA) system.

A description of the KEA algorithm can be found at KEA.

Category:
Certicom: This element is part of the Certicom Cryptography APIs. The Certicom Cryptography APIs provide the tools you need, including ECC based algorithms, to integrate high performance data security into your applications, such as public key data encryption and decryption, digital signatures, and data authentication. Since the Certicom Cryptography API is already in the JDE, its use will remove the need for you to engage in time and resource intensive security integration so that you have lower development costs and a faster time to market. Use of the Certicom Cryptography API requires a license from Certicom. Please contact Certicom directly for more information on licensing fees and conditions.

Certicom Contact Information

Phone:613-254-9258

Email: sales@certicom.com

Website: http://www.certicom.com/rim
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:
KEACryptoSystem, KEAPrivateKey

Constructor Summary
 Category: Certicom Category: Signed KEAPublicKey(KEACryptoSystem cryptoSystem, byte[] data)
          Constructs a KEAPublicKey object under the given crypto system using the given data as the public key's mathematical representation.
 Category: Certicom Category: CryptoExtensionAPI Category: Signed KEAPublicKey(KEACryptoSystem cryptoSystem, CryptoTokenPublicKeyData cryptoTokenData)
          Constructs a KEAPublicKey object under the given crypto system associated with the specified crypto token data.
 
Method Summary
 Category: Certicom Category: Signed  boolean equals(Object obj)
          Indicates whether some other object is "equal to" this one.
 Category: Certicom Category: Signed  String getAlgorithm()
          Returns a string containing the name of the algorithm associated with this key ("KEA").
 Category: Certicom Category: Signed  CryptoSystem getCryptoSystem()
          Returns the crypto system associated with the key.
 Category: Certicom Category: CryptoExtensionAPI Category: Signed  CryptoTokenPublicKeyData getCryptoTokenData()
          Returns the crypto token data associated with the key.
 Category: Certicom Category: Signed  KEACryptoSystem getKEACryptoSystem()
          Returns the KEA crypto system associated with the key.
 Category: Certicom Category: CryptoExtensionAPI Category: Signed  KEACryptoToken getKEACryptoToken()
          Returns the KEA crypto token associated with the key.
 Category: Certicom Category: Signed  byte[] getPublicKeyData()
          Returns a copy of the public key data.
 Category: Certicom Category: Signed  int hashCode()
          Returns a hash code value for the object.
 Category: Certicom Category: Signed  void verify()
          Checks the integrity of the associated CryptoSystem, and then performs integrity checks on the public key parameters.
 
Methods inherited from class java.lang.Object
getClass, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

KEAPublicKey

public KEAPublicKey(KEACryptoSystem cryptoSystem,
                    byte[] data)
             throws InvalidKeyException,
                    CryptoTokenException,
                    CryptoUnsupportedOperationException
Constructs a KEAPublicKey object under the given crypto system using the given data as the public key's mathematical representation.

Parameters:
cryptoSystem - A KEACryptoSystem that contains parameters for KEA computations.
data - The keying material that is to be used for the public key operations.
Throws:
InvalidKeyException - Thrown if the key data is invalid.
CryptoTokenException - Thrown if an error occurs with the crypto token of the crypto token is invalid.
CryptoUnsupportedOperationException - Thrown if a call is made to an unsupported operation.
Since:
JDE 3.6.0
Category:
Certicom: This element is part of the Certicom Cryptography APIs. The Certicom Cryptography APIs provide the tools you need, including ECC based algorithms, to integrate high performance data security into your applications, such as public key data encryption and decryption, digital signatures, and data authentication. Since the Certicom Cryptography API is already in the JDE, its use will remove the need for you to engage in time and resource intensive security integration so that you have lower development costs and a faster time to market. Use of the Certicom Cryptography API requires a license from Certicom. Please contact Certicom directly for more information on licensing fees and conditions.

Certicom Contact Information

Phone:613-254-9258

Email: sales@certicom.com

Website: http://www.certicom.com/rim
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.


KEAPublicKey

public KEAPublicKey(KEACryptoSystem cryptoSystem,
                    CryptoTokenPublicKeyData cryptoTokenData)
Constructs a KEAPublicKey object under the given crypto system associated with the specified crypto token data.

Parameters:
cryptoSystem - A KEACryptoSystem that contains parameters for the KEA computations.
cryptoTokenData - The public key data associated with the crypto token.
Since:
JDE 4.1.0
Category:
Certicom: This element is part of the Certicom Cryptography APIs. The Certicom Cryptography APIs provide the tools you need, including ECC based algorithms, to integrate high performance data security into your applications, such as public key data encryption and decryption, digital signatures, and data authentication. Since the Certicom Cryptography API is already in the JDE, its use will remove the need for you to engage in time and resource intensive security integration so that you have lower development costs and a faster time to market. Use of the Certicom Cryptography API requires a license from Certicom. Please contact Certicom directly for more information on licensing fees and conditions.

Certicom Contact Information

Phone:613-254-9258

Email: sales@certicom.com

Website: http://www.certicom.com/rim
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.

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:
Certicom: This element is part of the Certicom Cryptography APIs. The Certicom Cryptography APIs provide the tools you need, including ECC based algorithms, to integrate high performance data security into your applications, such as public key data encryption and decryption, digital signatures, and data authentication. Since the Certicom Cryptography API is already in the JDE, its use will remove the need for you to engage in time and resource intensive security integration so that you have lower development costs and a faster time to market. Use of the Certicom Cryptography API requires a license from Certicom. Please contact Certicom directly for more information on licensing fees and conditions.

Certicom Contact Information

Phone:613-254-9258

Email: sales@certicom.com

Website: http://www.certicom.com/rim
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 a string containing the name of the algorithm associated with this key ("KEA").

This method will always return the String "KEA".

Since:
JDE 3.6.0

Following copied from interface: Key
Returns:
A String representing the name of the algorithm.
Category:
Certicom: This element is part of the Certicom Cryptography APIs. The Certicom Cryptography APIs provide the tools you need, including ECC based algorithms, to integrate high performance data security into your applications, such as public key data encryption and decryption, digital signatures, and data authentication. Since the Certicom Cryptography API is already in the JDE, its use will remove the need for you to engage in time and resource intensive security integration so that you have lower development costs and a faster time to market. Use of the Certicom Cryptography API requires a license from Certicom. Please contact Certicom directly for more information on licensing fees and conditions.

Certicom Contact Information

Phone:613-254-9258

Email: sales@certicom.com

Website: http://www.certicom.com/rim
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.


getCryptoSystem

public CryptoSystem getCryptoSystem()
Returns the crypto system associated with the key.

Returns:
The CryptoSystem object associated with the key.
Since:
JDE 3.6.0
Category:
Certicom: This element is part of the Certicom Cryptography APIs. The Certicom Cryptography APIs provide the tools you need, including ECC based algorithms, to integrate high performance data security into your applications, such as public key data encryption and decryption, digital signatures, and data authentication. Since the Certicom Cryptography API is already in the JDE, its use will remove the need for you to engage in time and resource intensive security integration so that you have lower development costs and a faster time to market. Use of the Certicom Cryptography API requires a license from Certicom. Please contact Certicom directly for more information on licensing fees and conditions.

Certicom Contact Information

Phone:613-254-9258

Email: sales@certicom.com

Website: http://www.certicom.com/rim
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 CryptoTokenPublicKeyData getCryptoTokenData()
Returns the crypto token data associated with the key.

Returns:
The CryptoTokenPublicKeyData object associated with the key.
Since:
JDE 3.6.0
Category:
Certicom: This element is part of the Certicom Cryptography APIs. The Certicom Cryptography APIs provide the tools you need, including ECC based algorithms, to integrate high performance data security into your applications, such as public key data encryption and decryption, digital signatures, and data authentication. Since the Certicom Cryptography API is already in the JDE, its use will remove the need for you to engage in time and resource intensive security integration so that you have lower development costs and a faster time to market. Use of the Certicom Cryptography API requires a license from Certicom. Please contact Certicom directly for more information on licensing fees and conditions.

Certicom Contact Information

Phone:613-254-9258

Email: sales@certicom.com

Website: http://www.certicom.com/rim
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.


getKEACryptoSystem

public KEACryptoSystem getKEACryptoSystem()
Returns the KEA crypto system associated with the key.

Returns:
The KEACryptoSystem object associated with the key.
Since:
JDE 3.6.0
Category:
Certicom: This element is part of the Certicom Cryptography APIs. The Certicom Cryptography APIs provide the tools you need, including ECC based algorithms, to integrate high performance data security into your applications, such as public key data encryption and decryption, digital signatures, and data authentication. Since the Certicom Cryptography API is already in the JDE, its use will remove the need for you to engage in time and resource intensive security integration so that you have lower development costs and a faster time to market. Use of the Certicom Cryptography API requires a license from Certicom. Please contact Certicom directly for more information on licensing fees and conditions.

Certicom Contact Information

Phone:613-254-9258

Email: sales@certicom.com

Website: http://www.certicom.com/rim
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.


getKEACryptoToken

public KEACryptoToken getKEACryptoToken()
Returns the KEA crypto token associated with the key.

Returns:
The KEACryptoToken object associated with the key.
Since:
JDE 3.6.0
Category:
Certicom: This element is part of the Certicom Cryptography APIs. The Certicom Cryptography APIs provide the tools you need, including ECC based algorithms, to integrate high performance data security into your applications, such as public key data encryption and decryption, digital signatures, and data authentication. Since the Certicom Cryptography API is already in the JDE, its use will remove the need for you to engage in time and resource intensive security integration so that you have lower development costs and a faster time to market. Use of the Certicom Cryptography API requires a license from Certicom. Please contact Certicom directly for more information on licensing fees and conditions.

Certicom Contact Information

Phone:613-254-9258

Email: sales@certicom.com

Website: http://www.certicom.com/rim
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.


getPublicKeyData

public byte[] getPublicKeyData()
                        throws CryptoTokenException,
                               CryptoUnsupportedOperationException
Returns a copy of the public key data.

Returns:
A byte array containing the public key data.
Throws:
CryptoTokenException - Thrown if an error occurs with the 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:
Certicom: This element is part of the Certicom Cryptography APIs. The Certicom Cryptography APIs provide the tools you need, including ECC based algorithms, to integrate high performance data security into your applications, such as public key data encryption and decryption, digital signatures, and data authentication. Since the Certicom Cryptography API is already in the JDE, its use will remove the need for you to engage in time and resource intensive security integration so that you have lower development costs and a faster time to market. Use of the Certicom Cryptography API requires a license from Certicom. Please contact Certicom directly for more information on licensing fees and conditions.

Certicom Contact Information

Phone:613-254-9258

Email: sales@certicom.com

Website: http://www.certicom.com/rim
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:
Certicom: This element is part of the Certicom Cryptography APIs. The Certicom Cryptography APIs provide the tools you need, including ECC based algorithms, to integrate high performance data security into your applications, such as public key data encryption and decryption, digital signatures, and data authentication. Since the Certicom Cryptography API is already in the JDE, its use will remove the need for you to engage in time and resource intensive security integration so that you have lower development costs and a faster time to market. Use of the Certicom Cryptography API requires a license from Certicom. Please contact Certicom directly for more information on licensing fees and conditions.

Certicom Contact Information

Phone:613-254-9258

Email: sales@certicom.com

Website: http://www.certicom.com/rim
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.


verify

public void verify()
            throws InvalidKeyException,
                   InvalidCryptoSystemException,
                   CryptoTokenException,
                   CryptoUnsupportedOperationException
Checks the integrity of the associated CryptoSystem, and then performs integrity checks on the public key parameters. The CryptoSystem is checked via its verify() method, and then the following are verified:
  • y > 0
  • 1 < y < p
Throws:
InvalidKeyException - Thrown if the public key parameters are invalid.
InvalidCryptoSystemException - Thrown if the crypto system parameters are invalid.
CryptoTokenException - Thrown when an error occurs with the crypto token.
CryptoUnsupportedOperationException - Thrown when a call is made to an unsupported operation.
Since:
JDE 3.6.0
Category:
Certicom: This element is part of the Certicom Cryptography APIs. The Certicom Cryptography APIs provide the tools you need, including ECC based algorithms, to integrate high performance data security into your applications, such as public key data encryption and decryption, digital signatures, and data authentication. Since the Certicom Cryptography API is already in the JDE, its use will remove the need for you to engage in time and resource intensive security integration so that you have lower development costs and a faster time to market. Use of the Certicom Cryptography API requires a license from Certicom. Please contact Certicom directly for more information on licensing fees and conditions.

Certicom Contact Information

Phone:613-254-9258

Email: sales@certicom.com

Website: http://www.certicom.com/rim
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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