![]() ![]() You can read more about the alliance on their website at. But the FIDO Alliance is much newer formed in 2013 to promote stronger authentication standards. Pretty much everyone in IT knows who the W3C is, they were formed in 1994 and set the standard on how the World Wide Web works today. What is the FIDO Alliance and why should I trust them? In my opinion, FIDO U2F should be considered deprecated and you should only be looking at FIDO2 going forward for your organization. Bottom line, only purchase FIDO2 compatible hardware security keys for your organization if you want to go password-less with identity providers like Azure AD. FIDO2 offers full password-less authentication while FIDO U2F is designed to be used with a password as a traditional second factor only. They sound similar but FIDO2 is the successor to FIDO U2F. Please do not confuse the older FIDO U2F (Universal 2nd Factor) standard with FIDO2. Therefore, you should always attempt to purchase FIDO2 compatible keys for your organization and not the older FIDO2 U2F compatible keys. CTAP2 is compatible with WebAuthn while the older CTAP1 is not. CTAP2 is an evolution of the older FIDO U2F standard which used CTAP1. CTAP2 is the protocol that hardware security key manufacturers need to conform to in order to use the FIDO2 standard. There are two versions of CTAP, CTAP1 and now CTAP2 which made its debut in 2018. The FIDO Alliance worked on the other half of the solution called CTAP (Client to Authenticator Protocol). I’ll let you know the specific versions later on in this write-up. Web browsers need to be able to support WebAuthn as well in order to use these services obviously, so only modern web browsers will work. are already using WebAuthn with many more services becoming compatible with this new standard every month. ![]() Everything from identity providers like Microsoft and Okta to consumer services like Twitter, GitHub, etc. WebAuthn creates a standard for web-based applications and web services to use public-key cryptography. It was officially made a web standard on March 4, 2019, to great fanfare in the identity and access management community. The W3C worked on the WebAuthn web authentication standard which forms the core of FIDO2. FIDO2 is actually composed of two different components, WebAuthn and CTAP2. The FIDO2 authentication standard is the result of many years of work. They wanted to actualize the death of the password. It is a joint effort by the Fast IDentity Online Alliance (FIDO Alliance) and the World Wide Web Consortium (W3C) who had a mission to make web authentication stronger in an era where passwords are the biggest vectors for compromise in both our personal and corporate lives.
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