Java Doc for RandomBitsSupplier.java in  » Apache-Harmony-Java-SE » org-package » org » apache » harmony » security » provider » crypto » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Apache Harmony Java SE » org package » org.apache.harmony.security.provider.crypto   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.apache.harmony.security.provider.crypto.RandomBitsSupplier RandomBitsSupplier public class RandomBitsSupplier implements SHA1_Data(Code) The static class providing access on Windows platform to system means for generating true random bits. It uses a native method to get the random bits from CryptGenRandom. If the required library is not installed the provider shouldn't register the algorithm. Method Summary public static synchronized  byte[] getRandomBits(int numBytes)      The method returns byte array containing random bits. static  boolean isServiceAvailable()      The method is called by provider to determine if a device is available. Method Detail getRandomBits public static synchronized byte[] getRandomBits(int numBytes)(Code) The method returns byte array containing random bits. Parameters:   numBytes - - length of bytes requestedbyte array throws:   InvalidArgumentException - - if numBytes <= 0 ProviderException - if some problem related to native library is discovered isServiceAvailable static boolean isServiceAvailable()(Code) The method is called by provider to determine if a device is available. 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)