Overview

S/Key Generator for J2ME architecture. An RFC2289 compliant One-Time Password generator for mobile phone supporting Java language. It uses MD4 and MD5 hash algorithms. This project starts from the project jotp: The Java OTP Calculator by Harry Mantakos and from its sources. Some features are:

• I18N compliant (english and italian)
• MD4 and MD5 support
• Sending password via SMS
• ....

News Highlights

• 4 March 2007. Version 1.1 released. You can download sources and binaries.
  This release has been developed on Fedora Core 3 + Sun WTK 2.2 and tested on mobile phone Nokia 6230i.
  This is a stable release.
  

Downloads

You can download all the available versions here.

Documentation

The following documentation is available:

• MANUAL.

Verify release

It is essential that you verify the integrity of the downloaded files using the PGP signature or the SHA1 or MD5 checksums. The checksums are not as strong indicators as the PGP signature.

The PGP signatures can be verified using PGP or GPG. First download the KEYS as well as the asc signature file for the particular distribution. Verify the signatures using

% pgpk -a KEYS
% pgpv <FILE_NAME>.asc
or
% pgp -ka KEYS
% pgp <FILE_NAME>.asc
or
% gpg --import KEYS
% gpg --verify <FILE_NAME>.asc

Alternatively, you can verify the checksums using *sum tools:

% md5sum -c <FILE_NAME>.md5
% sha1sum -c <FILE_NAME>.sha


Unix programs called md5/sha1 or md5sum/sha1sum are included in many unix distributions. *sum is also available as part of GNU Textutils. Windows users can get binary md5 programs from here or here. fsum and MD5Summer support MD5 and SHA1.

I highly recommend to verify the PGP signature, though.

Uses

This program is very simple...