Author: M. Saqib

256-bit Serpent VB Implementation

This is a slow but working Visual Basic implementation of the 256-bit Serpent algorithm. Serpent was a finalist for Advanced Encryption Standard (AES) and appears to be a very secure powerful algorithm. The Advanced Encryption Standard, or AES, is a symmetric block cipher chosen by the U.S. government for the encryption of classified electronic data and is implemented in software and hardware throughout the world to encrypt sensitive data.

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BASE 85 Encoding VB Class

This is a BASE85 Encoding Visual Basic class that expands the text to be encoded by 4:5 i.e. uses 5 ASCII characters to represent 4 bytes with 80% accuracy. Used in Postscript and PDF documents. Useful if binary data needs to be persisted in ASCII text.

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Export all the slides from a powerpoint presentation

This is a very simple Visual Basic source code to export all the slides from a PowerPoint presentation. This source code can export images in any specified image format like .jpg, .bmp or .gif. I wrote this function while I was working on my undergraduate project “PowerPoint to XML Interchangeability”. I had to make some sort of PowerPoint Viewer to view the slides so I wrote this function to export PowerPoint slides into image sequences so that I can display them into an image control and export the images at a temporary location.

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Block a Specified IP address in ASP

This is a very simple programme that demonstrate how to block specified IP addresses from accessing the website or webpages. In this code I used array to store the IP adresses but database can also be used to store the IP...

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