phpkeychain aims to solve a problem plaguing users of PHP on many multiuser systems today, including Sourceforge: security of data contained within PHP scripts. On many systems which deploy PHP, all PHP scripts run as the same user (the user the web server is running as). These scripts may contain sensitive information, such as database passwords, but because all PHP scripts must be readable by the user the webserver runs as, any PHP script is readable by any other script on the system.

phpkeychain aims to solve this problem by providing a mechanism for storing sensitive data in such a way that it is accessable only by scripts at certain locations on the system. Given such a mechanism, database passwords and other sensitive information may be stored in a secure fashion where only specific scripts are allowed to access them.

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