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Class: Hash

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  Classes of Julien PACHET  >  Hash  >  Download .tar.gz .zip  >  Support forum Support forum  >  Blog Blog  >  RSS 1.0 feed RSS 2.0 feed Latest changes  
Name: Hash
Support forum Support forum
Base name: class_hash
Description: Store and validate hashes for data authentication
Related classes: , , , , ,
Version: -
PHP version: -
License: GNU General Public License (GPL)
All time users: 1907 users
All time rank: 1743
Week users: 0 users
Week rank: 2481
Picture of Julien PACHET
Author: Julien PACHET <e-mail contact>
Packages: 15 Browse this author's classes Browse this author's classes
Country: France France - PHP jobs in France
Age: 35
All time rank: 281 in France France
Week rank: 109 Down5 in France France Down


  Detailed description  
This class is meant to create hash strings that are used as keys to store private data.

The hash strings and the private data are stored in a database table so it can verified securely only on the server side. This capability can be for instance to prevent link stealing.

You may construct an hash string from:

- Session id of the user
- Private data of the server
- Private data of the web site
- An item to check
- Timestamp of a query
- A maximum number of accesses
- A maximum duration

Next, in another page, the class can check whether the hash is valid by passing as parameter in the UL, depending on:

- The item to check
- The session id of the user
- The private data of the server
- The private data of the Web site
- The moment when the has was saved in database
- The moment and the number of the access

 

  Groups  
Group folder image Cryptography Encrypting, decrypting and hashing data View top rated classes
Group folder image Validation Validation algorithms View top rated classes
Group folder image Security Security protection and attack detection View top rated classes

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  Applications that use this class  
Link Description
class_hash.png picture of the algorithm validation
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  Files folder image Files  
File Role Description
Plain text file biblio_mysql.inc.php Aux. Function library to manage mysql database
Plain text file class_hash.inc.php Class base class source
Plain text file hash_check.php Example Second page to check the hash and let access to the ressource
Plain text file hash_start.php Example Start page with the link to the check page with the resource

Download all files: class_hash.tar.gz class_hash.zip
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