otp_auth library

Pure Dart HOTP (RFC 4226) and TOTP (RFC 6238) implementation.

Classes

Base32

RFC 4648 Base32 codec.

HOTP

HMAC-based One-Time Password (RFC 4226).

OTPUri

Parses and builds otpauth:// URIs (RFC 6238 Appendix / Google Authenticator).

TOTP

Time-based One-Time Password (RFC 6238).

Enums

OTPAlgorithm

Hash algorithm for OTP generation.