Hash
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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
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
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Cryptography | Encrypting, decrypting and hashing data | View top rated classes |
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Validation | Validation algorithms | View top rated classes |
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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 |
If you know an application of this package, send a message to the author to add a link here.| Files |
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| File | Role | Description |
|---|---|---|
 biblio_mysql.inc.php |
Aux. | Function library to manage mysql database |
| class_hash.inc.php |
Class | base class source |
| hash_check.php |
Example | Second page to check the hash and let access to the ressource |
| 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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