TOTP: Generate and validate expirable one time passwords
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Innovation award Nominee: 3x | ||||||||||
This class can be used to generate and validate one time passwords that may expire after a period of time (without using a database or saving the password of any kind).
It generates a code based on a secret key that is valid during a period of time.
The class can also be used to validate the generated code in a different server and check if the code expired.
It generates a code based on a secret key that is valid during a period of time.
The class can also be used to validate the generated code in a different server and check if the code expired.
Details
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PHP Time One Time Password - Version 1.5a
December 2009
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Copyright (c) 2009 Dragos Protung
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CONTENTS
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1. Description
2. System Requirements
3. How to use
4. Contact
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1. Product Description
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A PHP class that can generate a code valid for a limited time.
Based on a secret key you can generate a code that is valid only for a limited period of time
or as a one time password (OTP), so this class extends the OTP to support the valability of the code in time.
The password generated can be verified on another server (or the same) without sending the secret key
and it will be valid only for a limited time.
The encription is using is the HMAC algorithm.
It can be usefull to grant access for a limited time to a resource without saving the passwords and it's valability
and check of it's valability.
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2. System Requirements
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PHP 5.x
For PHP version prior to 5.1.2 use totp_p512.class.php
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3. How to use
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See the example file (example.php)
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4. Contact
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Please send your suggestions, bug reports and general feedback to dragos@protung.ro
Also visit http://www.protung.ro
Out for now ;) |
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| Innovation Award |
 July 2008 Number 6 Prize: One book of choice from Manning |
One time passwords are useful to provide authorization to access restricted resources during a single access. This class enhances the concept of one time passwords by giving a single access to the resources for a limited period of time. Manuel Lemos |
| Applications that use this package |
No pages of applications that use this class were specified.
If you know an application of this package, send a message to the author to add a link here.
| Files |
| File | Role | Description |
|---|---|---|
| example.php |
Example | Example script |
| license.txt |
Lic. | License |
| readme.txt |
Doc. | Readme file |
| totp.class.php |
Class | Main class |
| totp_p512.class.php |
Class | Class for PHP < 5.1.2 |
 Install with Composer - Download all files: timeonetimepassword.tar.gz timeonetimepassword.zipNOTICE: if you are using a download manager program like 'GetRight', please Login before trying to download this archive.
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