How to encrypt, decrypt strings and files in your Delphi applications
Submitted By: AIdeas
Encryption is becoming ever more popular in today's applications. Developers must have a good understanding of the methods used to secure their applications including any sensitive data. As most developers will tell you, Delphi straight out of the box provides the developer with very little encryption components or classes. Instead developers tend to opt for 3rd party components which are tailored to the exact needs. In this article we are going to use an excellent Open Source library called 'DCPcrypt Cryptographic Component Library'.
In this article we cover how to install DCPcrypt Cryptographic Component Library (open source), how to call methods for encrypting and decrypting strings, and finally we will take a look at the advanced topic of encrypting files. Our examples relate to applications written in Delphi (5) or similar. For our examples we assume you already have a basic understanding of Delphi but only a limited understanding of encryption components and techniques.
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