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Resolved TOTP / HTOP implementation

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  1. Georgios Papageorgiou
    Georgios Papageorgiou
  2. PowerBuilder
  3. Saturday, 10 February 2018 13:34 PM UTC

Hi PowerSphere.

 

Was wondering if someone implemented the "TOTP: Time-Based One-Time Password Algorithm" (RFC 4226) or the "HOTP: An HMAC-Based One-Time Password Algorithm (RFC 6238)

Like this https://github.com/glacasa/TwoStepsAuthenticator/blob/master/README.md


 

Https://en.wikipedia.org/wiki/HMAC-based_One-time_Password_Algorithm

https://en.wikipedia.org/wiki/Time-based_One-time_Password_Algorithm

 

Regards

Georgios

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Accepted Answer
Roland Smith
Roland Smith Accepted Answer Pending Moderation
  1. Saturday, 10 February 2018 18:48 PM UTC
  2. PowerBuilder
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I have an example of using the BCrypt API for encryption. It supports HMAC which is at the root of these schemes.

http://www.topwizprogramming.com/freecode_bcrypt.html

I didn't read the RFC that closely but it appears that it incorporates some sort of timestamp so that the decrypting routine can tell how old the password is.

 

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