org.objectweb.jonas.security.realm.lib.HashHelper Class Reference

List of all members.

Static Public Member Functions
HashPassword	getHashPassword (String password)
char[]	hexDump (byte[] src)
void	smudge (char[] pwd)
void	smudge (byte[] pwd)
String	hashPassword (char[] pwd) throws NoSuchAlgorithmException
String	hashPassword (char[] pwd, String algo) throws NoSuchAlgorithmException
String	hashPassword (String string, String algo) throws NoSuchAlgorithmException
Static Public Attributes
final String	DEFAULT_ALGO = "MD5"

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Detailed Description

Methods to hash Strings. All the methods in here are static so HashHelper should never be instantiated.

Author:

Andy Armstrong, andy@tagish.com

Yann Petiot for the modifications

Florent Benoit modifications for integration in JOnAS

Definition at line 38 of file HashHelper.java.

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Member Function Documentation

HashPassword org.objectweb.jonas.security.realm.lib.HashHelper.getHashPassword (  String  password  )  [static]

Return the haspassword object from a string. It extracts algorithm and password from the string Parameters: password  contain password and algorithm Returns: the haspassword object Definition at line 93 of file HashHelper.java.

String org.objectweb.jonas.security.realm.lib.HashHelper.hashPassword (  String  string, String  algo )  throws NoSuchAlgorithmException [static]

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 algo  The type of Message Digest Algorithms Returns: a string representation of the hash password Exceptions: NoSuchAlgorithmException  if the algorithm can not be found Definition at line 214 of file HashHelper.java.

String org.objectweb.jonas.security.realm.lib.HashHelper.hashPassword (  char[]  pwd, String  algo )  throws NoSuchAlgorithmException [static]

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 algo  The type of Message Digest Algorithms Returns: a string representation of the hash password Exceptions: NoSuchAlgorithmException  if the algorithm can not be found Definition at line 186 of file HashHelper.java.

String org.objectweb.jonas.security.realm.lib.HashHelper.hashPassword (  char[]  pwd  )  throws NoSuchAlgorithmException [static]

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 Returns: a string representation of the hash password Exceptions: NoSuchAlgorithmException  if this is not a valid algorithm Definition at line 172 of file HashHelper.java.

char [] org.objectweb.jonas.security.realm.lib.HashHelper.hexDump (  byte[]  src  )  [static]

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 Returns: a char array containing a printable version of the source data Definition at line 121 of file HashHelper.java.

void org.objectweb.jonas.security.realm.lib.HashHelper.smudge (  byte[]  pwd  )  [static]

Zero the contents of the specified array. Parameters: pwd  the array to zero Definition at line 156 of file HashHelper.java.

void org.objectweb.jonas.security.realm.lib.HashHelper.smudge (  char[]  pwd  )  [static]

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 Definition at line 144 of file HashHelper.java.

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Member Data Documentation

final String org.objectweb.jonas.security.realm.lib.HashHelper.DEFAULT_ALGO = "MD5" [static]

The default algorithm Definition at line 63 of file HashHelper.java.

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The documentation for this class was generated from the following file:

• src/org/objectweb/jonas/security/realm/lib/HashHelper.java

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