dart-otp

RFC6238 Time-Based One-Time Password / Google Authenticator Library

Features:

Getting Started

Pubspec

pub.dartlang.org: (you can use 'any' instead of a version if you just want the latest always)

dependencies:
  otp: 0.1.0
#import('package:otp/otp.dart');

Start encoding/decoding ...

// Generate TOTP code.
OTP.generateTOTPCode("JBSWY3DPEHPK3PXP", 1362302550000); // -> 238158

// base32 decoding to original string.
OTP.generateHOTPCode("JBSWY3DPEHPK3PXP", 7); // -> 449891

API

OTP.generateTOTPCode(String secret, int currentTime, {int length: 6})

Generate a code for the provided secret and time.

  • secret - (String) A Base32 String.
  • currentTime - (int) The current time in milliseconds.
  • length - (int) the length of the resulting code. Either 6 or 8.

Returns an int code.

OTP.generateHOTPCode(String secret, int counter, {int length: 6})

Generate a code for the provided secret and time.

  • secret - (String) A Base32 String.
  • counter - (int) An int counter.
  • length - (int) the length of the resulting code. Either 6 or 8.

Returns an int code.

Testing

In dartvm

dart test\otp_test.dart

In Browser

N/A

Release notes

v0.1.0 - Dart 1.0 Readiness

v0.0.4 - Fixing crypto library.

v0.0.3 - Fixing language changes.

v0.0.2 - No functionality changes, just fixing a bad file state it git and in the package involving the case of the file.

v0.0.1 - Initial Documented Release

Libraries

otp