OTP generation and validation library.

• Implements RFC4226 and RFC6238
• Compatible with Google Authenticator.
• Supports Alphanumeric OTP generation.
• Supports HmacSHA1, HmacSHA256 and HmacSHA512 digests.

Maven

<dependency>
    <groupId>io.github.eendroroy</groupId>
    <artifactId>kotp</artifactId>
    <version>2.0.2</version>
</dependency>

Gradle

dependencies {
    implementation("io.github.eendroroy:kotp:2.0.2")
}

Note: Check releases for latest version.

ChangeSet

See Wiki

Bug reports and pull requests are welcome on GitHub at kotp repository. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

1. Fork it ( https://github.com/eendroroy/kotp/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request

• indrajit - Owner - eendroroy

The project is available as open source under the terms of the MIT License.