dart-otp #

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

Features:

• Generate TOTP and HOTP codes.
• Annotated source code

Getting Started #

Pubspec #

pub-web.flutter-io.cn: (you can use 'any' instead of a version if you just want the latest always)

dependencies:
  otp: 1.0.0

#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 #

pub run test

Release notes #

See CHANGELOG.md