Robert S. MacGregor Books

WWW Security: How To Build A Secure World Wide Web Connection

By Andreas Siegert, Robert S. MacGregor, Robert S. Macgregor, IBM Books, Alberto Aresi

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an End-to-end Guide To Developing Secure Web Sites.this Comprehensive Guide Presents A Broad Overview Of All Security Aspects Associated With The World Wide Web. It Describes In Depth The Protocols...

Java Network Security

By Robert MacGregor, Robert S. MacGregor, Staff Ibm Books

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Java makes the Web rich, exciting, executable. But executable code is potentially dangerous code. Java Network Security is the first end-to-end blueprint for writing secure Java code - and for deve...

How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.