Java Doc for StreamCipher.java in  » Security » Bouncy-Castle » org » bouncycastle » crypto » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Security » Bouncy Castle » org.bouncycastle.crypto 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.bouncycastle.crypto.StreamCipher

All known Subclasses:   org.bouncycastle.crypto.engines.VMPCEngine,  org.bouncycastle.crypto.engines.Salsa20Engine,  org.bouncycastle.crypto.engines.RC4Engine,  org.bouncycastle.crypto.StreamBlockCipher,  org.bouncycastle.crypto.engines.HC128Engine,  org.bouncycastle.crypto.engines.ISAACEngine,  org.bouncycastle.crypto.engines.HC256Engine,
StreamCipher
public interface StreamCipher (Code)
the interface stream ciphers conform to.




Method Summary
public  StringgetAlgorithmName()
     Return the name of the algorithm the cipher implements.
public  voidinit(boolean forEncryption, CipherParameters params)
     Initialise the cipher.
public  voidprocessBytes(byte[] in, int inOff, int len, byte[] out, int outOff)
     process a block of bytes from in putting the result into out.
public  voidreset()
     reset the cipher.
public  bytereturnByte(byte in)
     encrypt/decrypt a single byte returning the result.
Parameters:
  in - the byte to be processed.



Method Detail
getAlgorithmName
public String getAlgorithmName()(Code)
Return the name of the algorithm the cipher implements. the name of the algorithm the cipher implements.



init
public void init(boolean forEncryption, CipherParameters params) throws IllegalArgumentException(Code)
Initialise the cipher.
Parameters:
  forEncryption - if true the cipher is initialised forencryption, if false for decryption.
Parameters:
  params - the key and other data required by the cipher.
exception:
  IllegalArgumentException - if the params argument isinappropriate.



processBytes
public void processBytes(byte[] in, int inOff, int len, byte[] out, int outOff) throws DataLengthException(Code)
process a block of bytes from in putting the result into out.
Parameters:
  in - the input byte array.
Parameters:
  inOff - the offset into the in array where the data to be processed starts.
Parameters:
  len - the number of bytes to be processed.
Parameters:
  out - the output buffer the processed bytes go into.
Parameters:
  outOff - the offset into the output byte array the processed data starts at.
exception:
  DataLengthException - if the output buffer is too small.



reset
public void reset()(Code)
reset the cipher. This leaves it in the same state it was at after the last init (if there was one).



returnByte
public byte returnByte(byte in)(Code)
encrypt/decrypt a single byte returning the result.
Parameters:
  in - the byte to be processed. the result of processing the input byte.



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