Java Doc for HashHelper.java in  » J2EE » JOnAS-4.8.6 » org » objectweb » jonas » security » realm » lib » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » JOnAS 4.8.6 » org.objectweb.jonas.security.realm.lib   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.objectweb.jonas.security.realm.lib.HashHelper HashHelper public class HashHelper (Code) Methods to hash Strings. All the methods in here are static so HashHelper should never be instantiated. author:    Andy Armstrong, andy@tagish.com author:    Yann Petiot for the modifications author:    Florent Benoit modifications for integration in JOnAS Field Summary final public static  String DEFAULT_ALGO      Method Summary public static  HashPassword getHashPassword(String password)      Return the haspassword object from a string. public static  String hashPassword(char[] pwd)      Performs the default algorithm hashing on the supplied password and return a char array containing the password as a printable string. public static  String hashPassword(char[] pwd, String algo)      Performs an algorithm specified by the user hashing on the supplied password and return a char array containing the encrypted password as a printable string. public static  String hashPassword(String string, String algo)      Performs an algorithm specified by the user hashing on the supplied password and return a char array containing the encrypted password as a printable string. public static  char[] hexDump(byte[] src)      Turn a byte array into a char array containing a printable hex representation of the bytes. public static  void smudge(char[] pwd)      Zero the contents of the specified array. public static  void smudge(byte[] pwd)      Zero the contents of the specified array. Field Detail DEFAULT_ALGO final public static String DEFAULT_ALGO(Code) The default algorithm Method Detail getHashPassword public static HashPassword getHashPassword(String password)(Code) Return the haspassword object from a string. It extracts algorithm and password from the string Parameters:   password - contain password and algorithm the haspassword object hashPassword public static String hashPassword(char[] pwd) throws NoSuchAlgorithmException(Code) Performs the default algorithm hashing on the supplied password and return a char array containing the password as a printable string. The hash is computed on the low 8 bits of each character. Parameters:   pwd - The password to hash a string representation of the hash password throws:   NoSuchAlgorithmException - if this is not a valid algorithm hashPassword public static String hashPassword(char[] pwd, String algo) throws NoSuchAlgorithmException(Code) Performs an algorithm specified by the user hashing on the supplied password and return a char array containing the encrypted password as a printable string. The hash is computed on the low 8 bits of each character. Parameters:   pwd - The password to hash Parameters:   algo - The type of Message Digest Algorithms a string representation of the hash password throws:   NoSuchAlgorithmException - if the algorithm can not be found hashPassword public static String hashPassword(String string, String algo) throws NoSuchAlgorithmException(Code) Performs an algorithm specified by the user hashing on the supplied password and return a char array containing the encrypted password as a printable string. The hash is computed on the low 8 bits of each character. Parameters:   string - The password to hash Parameters:   algo - The type of Message Digest Algorithms a string representation of the hash password throws:   NoSuchAlgorithmException - if the algorithm can not be found hexDump public static char[] hexDump(byte[] src)(Code) Turn a byte array into a char array containing a printable hex representation of the bytes. Each byte in the source array contributes a pair of hex digits to the output array. Parameters:   src - the source array a char array containing a printable version of the source data smudge public static void smudge(char[] pwd)(Code) Zero the contents of the specified array. Typically used to erase temporary storage that has held plaintext passwords so that we don't leave them lying around in memory. Parameters:   pwd - the array to zero smudge public static void smudge(byte[] pwd)(Code) Zero the contents of the specified array. Parameters:   pwd - the array to zero 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)