Yubico Forum

Q: I have seen USB keys based on Smart Card components. What is different with the YubiKey?

A: The keys you have seen require client software. Client software installation is a well-known hassle for the end-user and a nightmare to administer in a larger setting. Yubico's technology requires no client software. In fact, you can use the YubiKey wherever you can plug in a standard USB keyboard.

I have been doing smart cards and OTP tokens for years and I
had my products FIPS certified:

http://csrc.nist.gov/groups/STM/cmvp/do ... 04.htm#380

I did the hybrid token for RSA and I did the first IDVault prototype based on Java Card GlobalPlatform at: http://www.guardid.com/

But now I'm converting to use Yubikey which is a much superior solution.

Here is a good comparison chart:

http://mashedlife.com/yubikey/

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The YubiKey Server Guy