StreamDecryptor is an abstract class which contains functionality
common to all stream decryptors. A stream decryptor is an decryption
scheme which decrypts data one byte at a time, instead of in blocks.
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
Field Summary
Fields inherited from class net.rim.device.api.crypto.CryptoInputStream
Creates a StreamDecryptor object based on an input stream that contains
the encrypted data.
Parameters:
input - The input stream used for reading the encrypted data from.
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
decrypt
protected abstract void decrypt(byte[] data,
int offset,
int length)
throws CryptoTokenException
Decrypts data according to the specific implementation of the chosen stream cipher. The data should be decrypted in place.
Parameters:
data - A byte array containing the input to the stream cipher.
offset - The offset, or initial position within the array, of the information to decrypt.
length - The length, in bytes, of the information to decrypt.
Throws:
CryptoTokenException - Thrown when an error occurs with the crypto
token or the crypto token is invalid.
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.
read
public int read(byte[] data,
int offset,
int length)
throws IOException
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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