Java Doc for ElGamalEngine.java in  » Security » Bouncy-Castle » org » bouncycastle » crypto » engines » 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.engines   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.bouncycastle.crypto.engines.ElGamalEngine ElGamalEngine public class ElGamalEngine implements AsymmetricBlockCipher(Code) this does your basic ElGamal algorithm. Method Summary public  int getInputBlockSize()      Return the maximum size for an input block to this engine. public  int getOutputBlockSize()      Return the maximum size for an output block to this engine. public  void init(boolean forEncryption, CipherParameters param)      initialise the ElGamal engine. public  byte[] processBlock(byte[] in, int inOff, int inLen)      Process a single block using the basic ElGamal algorithm. Parameters:   in - the input array. Parameters:   inOff - the offset into the input buffer where the data starts. Parameters:   inLen - the length of the data to be processed. Method Detail getInputBlockSize public int getInputBlockSize()(Code) Return the maximum size for an input block to this engine. For ElGamal this is always one byte less than the size of P on encryption, and twice the length as the size of P on decryption. maximum size for an input block. getOutputBlockSize public int getOutputBlockSize()(Code) Return the maximum size for an output block to this engine. For ElGamal this is always one byte less than the size of P on decryption, and twice the length as the size of P on encryption. maximum size for an output block. init public void init(boolean forEncryption, CipherParameters param)(Code) initialise the ElGamal engine. Parameters:   forEncryption - true if we are encrypting, false otherwise. Parameters:   param - the necessary ElGamal key parameters. processBlock public byte[] processBlock(byte[] in, int inOff, int inLen)(Code) Process a single block using the basic ElGamal algorithm. Parameters:   in - the input array. Parameters:   inOff - the offset into the input buffer where the data starts. Parameters:   inLen - the length of the data to be processed. the result of the ElGamal process. exception:   DataLengthException - the input block is too large. Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)