net.rim.device.api.crypto
Class RSADecryptorEngine
java.lang.Object
net.rim.device.api.crypto.RSADecryptorEngine
- All Implemented Interfaces:
- BlockDecryptorEngine, PrivateKeyDecryptorEngine
public final class RSADecryptorEngine
- extends Object
- implements PrivateKeyDecryptorEngine
Provides the RSA decryption functionality on a block
by block basis. The block length is the size of the modulus, which must be a multiple of 8.
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 decryptor engine, click here.
- See Also:
RSAEncryptorEngine,
RSAKeyPair- 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 |
|
RSADecryptorEngine(RSAPrivateKey key)
Creates an RSADecryptorEngine object given a private key that will be
used for decrypting the ciphertext. |
|
Method Summary |
|
void |
decrypt(byte[] ciphertext,
int ciphertextOffset,
byte[] plaintext,
int plaintextOffset)
Decodes a block of the given ciphertext into a block of plaintext. |
|
String |
getAlgorithm()
Returns the name of the algorithm used, ie "RSA". |
|
int |
getBlockLength()
Returns the block length of the block cipher in bytes. |
RSADecryptorEngine
public RSADecryptorEngine(RSAPrivateKey key)
throws CryptoTokenException,
CryptoUnsupportedOperationException
- Creates an
RSADecryptorEngine object given a private key that will be
used for decrypting the ciphertext. The modulus must be a multiple of 8.
- Parameters:
key - The private key that will be used to decrypt the data. The
private key is associated with the public key that was
used to encrypt 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
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 BlockDecryptorEngine
- 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:
BlockDecryptorEngine
- Returns the block length of the block cipher in bytes.
- Specified by:
getBlockLength in interface BlockDecryptorEngine
- Returns:
- An integer that specifies the length of a block of data.
- 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
decrypt
public void decrypt(byte[] ciphertext,
int ciphertextOffset,
byte[] plaintext,
int plaintextOffset)
throws CryptoTokenException
- Description copied from interface:
BlockDecryptorEngine
- Decodes a block of the given ciphertext into a block of plaintext.
- Specified by:
decrypt in interface BlockDecryptorEngine
- Parameters:
ciphertext - A byte array containing the input that is to be decrypted.ciphertextOffset - The starting offset, or initial byte position, of the data within the input array.plaintext - A byte array containing the output from the method.plaintextOffset - The starting offset, or initial byte position, of
the data within the output array.
- Throws:
CryptoTokenException - Thrown when an error 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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