Title: DataSource Password Encryption
_Apache OpenEJB 3.1.2 or later required_

_TomEE 1.5.0 switched from Apache Commons-DBCP to Tomcat-pool. On that specific version, password encryption is not
available. You can still switch back to Apache Commons DBCP buy adding the following property: DataSourceCreator dbcp.
On all following versions, the database encryption will be ported and hence available on Tomcat-pool as well._

<a name="DataSourcePasswordEncryption-Cipheringpasswords"></a>
# Ciphering passwords
Apache OpenEJB now provides an easy and extensible way to cipher databases
passwords. Not that by default, this feature is not activated so plain
passwords are used.

<a name="DataSourcePasswordEncryption-Usage"></a>
## Usage

Default Plain text password example:

    <Resource id="MySQL Database" type="DataSource">
        #  MySQL example
        #
        #  This connector will not work until you download the driver at:
        #  http://www.mysql.com/downloads/api-jdbc-stable.html

        JdbcDriver	com.mysql.jdbc.Driver
        JdbcUrl	jdbc:mysql://localhost/test
        UserName	test
        Password	Passw0rd
    </Resource>


3DES ciphered password example.

Note that the built in 3DES implementation uses *a static key* to
encode/decode your password. _It's only meant to be a sample on how to implement a Codec. On a real
enterprise life, you should implement your how relying on an HSM for example._
The easiest way to do it is to implement the *org.apache.openejb.resource.jdbc.cipher.PasswordCipher* interface.

    <Resource id="MySQL Database" type="DataSource">
        #  MySQL example
        #
        #  This connector will not work until you download the driver at:
        #  http://www.mysql.com/downloads/api-jdbc-stable.html

        JdbcDriver	com.mysql.jdbc.Driver
        JdbcUrl	jdbc:mysql://localhost/test
        UserName	test

        # ciphered value for Passw0rd using Static3DES codec is
        xMH5uM1V9vQzVUv5LG7YLA==
        Password	xMH5uM1V9vQzVUv5LG7YLA==
        PasswordCipher Static3DES
    </Resource>


# Hint
You can plug your own algorithm to extend Apache OpenEJB built in ones. To
do such, you just need to implement the 
 
## Command line tool

Apache OpenEJB also provides a command line tool allowing password cipher
algorithm. Actually, it's useful to get the ciphered value of a plain text
value using a given algorithm.
    
### NAME
    
openejb cipher - OpenEJB Cypher Tool
    
### SYNOPSIS
    
    openejb cipher [#options]

### DESCRIPTION
    
The OpenEJB Cipher tool is an OPTIONAL tool that allows you to use
`PasswordCipher` algorithm to encode/decode values.

*This tool isn't package by default on TomEE 1.5.0. It's only available on the standalone distribution. After 1.5.0, it's in TomEE as well.*
    
The OpenEJB Cipher tool can be executed from any directory as long as
`<OPENEJB_HOME>/bin` is in the system PATH. Before running this tool you need
to set the environment variable OPENEJB_HOME to the path of the directory
where you unpacked the OpenEJB installation. For for the remainder of this
document we will assume you unpacked OpenEJB into the directory
C:\openejb-3.1.2.
    
In Windows, the cipher tool can be executed as follows:

    `C:\openejb-3.1.2> bin\openejb cipher --help`

In UNIX, Linux, or Mac OS X, the cipher tool can be executed as follows:

    `\[user@host openejb-3.1.2]# bin/openejb cipher --help`
    
Depending on your OpenEJB version, you may need to change execution bits to
make the scripts executable.  You can do this with the following command.
    
    `\[user@host openejb-3.1.2]# chmod 755 bin/openejb`
    
From here on out, it will be assumed that you know how to execute the right
openejb script for your operating system and commands will appear in
shorthand as show below.
    
    `openejb cipher --help`
    
### OPTIONS

<table>
<tr><td>-h, --_help_ <td></td>Lists these options and exit.</td></tr>
<tr><td>-c, --_cipher_ <td></td>Specifies the password cipher implementation to use (default is Static3DES).</td></tr>
<tr><td>-d, --_decrypt_ <td></td>Switches command line tool to decrypt.</td></tr>
<tr><td>-e, --_encrypt_ <td></td>Switches command line tool to encrypt (default).</td></tr>
</table>
    
### EXAMPLES
    
Encrypt a plain password using the default algorithm.

    `openejb cipher Passw0rd`

Output

    xMH5uM1V9vQzVUv5LG7YLA==