Introduction
PassGen is a toolkit to generate one-time passwords.
A One-Time Password is a password that is used only once. It can be used
to authenticate users in a secure manner across insecure networks as once
the password is used it can never be used again.
What does this toolkit consist of?
A user interface application that can be used to generate passwords.
A key storage facility (The Keystore) that stores your keys in an encrypted
manner.
Java Classes to generate passwords.
Java Classes to store and manage encryption keys
With the interfaces provided you can securely store Secure Signon Keys
and generate single use IBM Security Server Passtickets in your applications.
You can also generate S/Key onetime passwords.
The Keystore
To provide secure storage PassGen provides an encrypted database called
a Keystore. A Password is required to encrypt and decrypt data in this
database.
User Interface application
An application provides users immediate access to the toolkit with an
application that can be used to store keys and generate One-Time Passwords.
Users can try this technology easily and quickly by generating a password
and then using cut-and-paste to input it into an application.

PassGen provides two one-time password systems in one convenient Java
application:
The IETF One Time Password Standard - S/KEY (RFC 1760). Most UNIX and
Firewall systems provide support for this standard.
IBM Security Server ( RACF™ ) Passticket algorithm available in
RACF, CA-ACF2 and CA Top-Secret. This provides secure logon to IBM Mainframe
systems. The Passticket can be used as a direct replacement for static
Passwords, no changes are required to your existing applications.
For systems with no One Time password support PassGen also provides encrypted
password storage.
Key Benefits
Easily generate single use IBM Security Server Passtickets in your applications
Easily generate S/Key one time passwords.
Prevents Passwords from being intercepted on LAN and WAN
Provides secure storage for One-Time Password keys
Quick start with a supplied sample Passticket application
Technical Requirements
Supported Platforms
Java Runtime Environment 1.4 or greater
Supported Security Systems
IBM Security Server ( RACF ) 1.9 or above
Computer Associates Top-Secret 5.1 or above
Computer Associates ACF/2 6.1 or above
Any S/KEY (RFC 1760) compliant system such as UNIX or Firewalls