One time password token,one time password,Security token,otp token

What is OTP TOKEN ?
One-time password (OTP) is a password that is only valid for a single login session
or transaction. OTPs avoid a number of shortcomings that are associated with
traditional (static) passwords. The most important shortcoming that is addressed
by OTPs is that, in contrast to static passwords, they are not vulnerable to replay
attacks. This means that, if a potential intruder manages to record an OTP that was
already used to log into a service or to conduct a transaction, he will not be able
to abuse it since it will be no longer valid. On the downside, OTPs cannot be memorized
by human beings. Therefore they require additional technology in order to work.

How OTP are generated and distributed:
OTP generation algorithms typically make use of randomness. This is necessary
because otherwise it would be easy to predict future OTPs from observing previous
ones. Concrete OTP algorithms vary greatly in their details. Various approaches for
the generation of OTPs are listed below.

A. Time-Based OTP: Based on time-synchronization between the authentication
server and the client providing the password (OTPs are valid only for a short
period of time)
B. Event-Based OTP: Based on event-synchronization between the authentication
server and the client providing the password (OTPs are valid only for the
same event)
C. Challenge-Response OTP: The OTP general will be based the Challenge
information.
There are also different ways to make the user aware of the next OTP to use. Some
systems consist of software that runs on the user's mobile phone,some systems
generate OTPs on the server-side and send them to the user using an out-of-band
channel such as SMS messaging. Finally, in some systems, OTPs are printed on paper
that the user is required to carry with.

OTP TOKEN-KingKey 2000
1,size:5.5cm*2.5cm*0.9cm
2,Time-based or Event-based;
3,Time-based: 60seconds/30seconds/20seconds renew one OTP
4,Waterproof is good, can be put on the glasses in 10 minutes
5,3rd floor, not dropped from the break
6,The appearance of fine fashion, as the key, size, and the key to almost

Can run on the following operating systems: Windows 2000/Windows 2003 Server/Windows

2008/Windows XP Linux Unix and so on.
Support the following database: SQL Server 2000/SQL Server 2005/SQL Server 2008 Oracle

MySQL and so on.
Provides the following development interface: Radius interface API interface, include

C&C++/VB/JAVA/PB/DELPHI/ASP/JSP/PHP,and so on.
Standard Support
OATH based, The detail please refer ietf standards RFC 4226 (Read RFC4226)