This repository provides an implementation of Duo's current API authentication scheme independent of any HTTP/REST client. If you want a full Python client for the Duo API, see duo_client_python ...

This library implements functions that generate OTP Tokens based on RFC4226 (HOTP) and RFC 6238 (TOTP). Additionally, the library implements a custom version of HMAC-SHA-1 that serves as a base for ...

I was recently on a test where the client’s API used a custom authentication scheme to add a SHA256 HMAC dynamically on each request, based on the URL, time, and message body. My normal go-to for API ...