A Developers Guide to Storage and Manipulation of Passwords

For many users, creating and entering passwords is an everyday occurrence. On today’s internet, very few services will allow access without some form of credential. Whether it’s internet banking or social networking, the user is required to enter a username and a password.

Although passwords have a number of weaknesses when compared to alternative methods (such as One Time Tokens), they continue to be the most common form of authorisation. As a developer, it is highly likely that you will need to process and store passwords at some point

The aim of this whitepaper is to look at the strengths and weaknesses of the various methods available. We will also look into the available methods of processing supplied credentials to establish whether to permit the user access to the system.

This paper is not intended to focus on any particular type of system, and the main body of information provided here should apply to any system, whether a web application or a local application. For convenience, we will assume that your application data is stored in a CSV based database. In reality the data can be stored using your preferred method.

 

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