[JavaScript] How to encode the password to open the keystore.

encode_password.js

/*
 * The following snippet uses the Forge JavaScript library (https://github.com/digitalbazaar/forge)
 * to generate the MD5 hash of a plain text String and encode the result into a BASE64 String. This
 * snippet exemplify how to proper encode the keystore password before use it to access the certificate
 * and keys. For more information about how to use the Forge JavaScript library, please, refer to
 * the aforementioned URL.
 *
 * Gists provided for illustrative purposes only. Developers can use these as a support tool
 * but the Office of the Revenue Commissioners (Revenue) does not provide any warranty with 
 * these gists. 
 */
function encodePassword(plainTextPassword) {
    var passwordMD5Hash = forge.md.md5
        .create()
        .update(plainTextPassword)
        .digest()
        .getBytes();
    return forge.util.encode64(passwordMD5Hash);
}