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All Projects → naim94a → otp

naim94a / otp

Licence: other
One Time Password for 2-Factor-Authentication implemented in Rust

Programming Languages

rust
11053 projects

Labels

otprust-library2farfc-6238rfc-4226

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Build Status

libotp implements RFC4226 and RFC6238. These RFCs are implemented by Google's Google Authenticator.

OTP can increases the security for various things, such as web services, servers and even private computers.

How OTP works

A secret is shared between the client and a device. Passwords are generated based on the shared secret.

It is possible to work in two modes:

  1. Counter based - The OTP is generated with a counter that is increased on each successful attempt.
  2. Time based - The OTP is generated based on time. Codes are valid for a pre-configured amount of time.

Features

  • HTOP - HMAC One-Time-Password generation (RFC4226).
    • Configurable HMAC - SHA1, SHA256 or SHA512.
  • TOTP - Time based One-Time-Password generation (RFC6238).
    • Configurable time step, RFC recommended is 30 seconds.
    • Configurable T0 (start time).
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