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Informations about the package otis

Otis

One-time password / multi-factor authentication library for PHP.

The most recent stable version is 0.3.0 Current build status image Current coverage status image

Installation and documentation

What is Otis?

Otis is a PHP library for implementing one-time password / [multi-factor authentication] systems. Otis provides generators and validators for both TOTP (time-based passwords as defined in RFC 6238) and HOTP (counter-based passwords as covered in RFC 4226). Otis supports all hashing algorithms (SHA-1, SHA-256, SHA-512).

In addition, Otis provides tools for generating the URI format understood by Google Authenticator and other compatible OTP apps, as well as URIs for QR code generation services to further ease integration.

Usage

Validating a TOTP password

Validating an HOTP password

Generating a Google Authenticator URI

Generating a Google Authenticator QR code URI

Validating a sequence of HOTP passwords

Security considerations

When implementing an OTP system, the following points should be considered with care:

Try Otis

Otis has a simple demonstration system. In order to run the demos, these instructions must be followed:

In addition, there is a test suite for determining the capabilities of OTP apps. In order to run the test suite follow these steps:

OTP app capabilities

Not all OTP apps support the same features. Even Google Authenticator does not support all the features that its URI format is capable of expressing (and support varies across platforms).

For a table of OTP apps and their capabilities, see OTP app capabilities in the wiki.


All versions of otis with dependencies

PHP Build Version
Package Version
Requires php Version >=5.3
christian-riesen/base32 Version ~1
eloquent/enumeration Version ~5
icecave/isolator Version ~2
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