Strength of Function for Authenticators


Strength of Function for Authenticators (SOFA)

There are many different method for authenticating users to applications, devices, and services, from “traditional” usernames and passwords, to software one-time passwords, to multiple modalities of biometric systems.

Each method brings to the table a unique set of characteristics—both security and usability—as well as potential vulnerabilities. With all these options, and the persistent drive towards stronger authentication, the emerging question is, “How can I compare the security of these technologies and determine which fits my risk environment?” The purpose of the SOFA framework is to provide guidance for measuring, evaluating, and comparing the strength of authentication systems.

Some Strength of Function for Authenticators implementation#

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