net.rim.device.api.crypto
Class RSAEncryptorEngine

java.lang.Object
  extended by net.rim.device.api.crypto.RSAEncryptorEngine
All Implemented Interfaces:
BlockEncryptorEngine, PublicKeyEncryptorEngine

public final class RSAEncryptorEngine
extends Object
implements PublicKeyEncryptorEngine

Provides the RSA encryption functionality on a block by block basis. The block length is the size of the modulus, which must be a multiple of 8 bits.

A description of the RSA algorithm can be found in PKCS #1 version 2.1. We support this definition of RSA.

For a code sample using the RSA encryptor engine, click here.

For information on cryptographic algorithms, see Crypto Algorithms.

See Also:
RSADecryptorEngine
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:905-507-4220

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:
BlackBerry API 3.6.0

Constructor Summary
Category: Certicom Category: Signed RSAEncryptorEngine(RSAPublicKey key)
          Creates an RSAEncryptorEngine object given a public key that will be used for encrypting the plaintext.
 
Method Summary
Category: Certicom Category: Signed  void encrypt(byte[] plaintext, int plaintextOffset, byte[] ciphertext, int ciphertextOffset)
          Encrypts a block of the given plaintext into a block of ciphertext.
Category: Certicom Category: Signed  String getAlgorithm()
          Returns the name of the algorithm used, ie "RSA".
Category: Certicom Category: Signed  int getBlockLength()
          Returns the block length of the engine in bytes.
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 



Constructor Detail

RSAEncryptorEngine

public RSAEncryptorEngine(RSAPublicKey key)
                   throws CryptoTokenException,
                          CryptoUnsupportedOperationException
Creates an RSAEncryptorEngine object given a public key that will be used for encrypting the plaintext. The modulus must be a multiple of 8.

Parameters:
key - The public key associated with the private key that will be used to decrypt the data.
Throws:
CryptoTokenException - Thrown when an error occurs with a crypto token or the crypto token is invalid.
CryptoUnsupportedOperationException - Thrown when a call is made to an unsupported operation.
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:905-507-4220

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:
BlackBerry API 3.6.0


Method Detail

getAlgorithm

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

This method will always return the String "RSA".

Specified by:
getAlgorithm in interface BlockEncryptorEngine
Returns:
A String that represents 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:905-507-4220

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:
BlackBerry API 3.6.0

getBlockLength

public int getBlockLength()
Description copied from interface: BlockEncryptorEngine
Returns the block length of the engine in bytes.

Specified by:
getBlockLength in interface BlockEncryptorEngine
Returns:
An integer that represents the number of bytes.
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:905-507-4220

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:
BlackBerry API 3.6.0

encrypt

public void encrypt(byte[] plaintext,
                    int plaintextOffset,
                    byte[] ciphertext,
                    int ciphertextOffset)
             throws CryptoTokenException
Description copied from interface: BlockEncryptorEngine
Encrypts a block of the given plaintext into a block of ciphertext.

Specified by:
encrypt in interface BlockEncryptorEngine
Parameters:
plaintext - A byte array containing the input that is to be encrypted.
plaintextOffset - The starting offset, or initial byte position, of the data within the input array.
ciphertext - A byte array to hold the ciphertext output from the method.
ciphertextOffset - The starting offset, or initial byte position, of the data within the output array.
Throws:
CryptoTokenException - Thrown when an problem occurs with the crypto token or the crypto token is invalid.
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:905-507-4220

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:
BlackBerry API 3.6.0





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