Svetlin Nakov Sofia University “St. Kliment Ohridski” Bulgaria This article was intentionally removed from www.nakov.com, because the publishing rights are now owned by Jupitermedia Corp. Please follow these links to read it: Part 1. Basic Concepts Related to Digital Signatures: http://www.developer.com/security/article.php/3083161 Part 2. How Digital Signatures Work: Digitally Signing Messages: http://www.developer.com/security/article.php/3092771 Part 3. Using Digital

This Technology is Obsolete! Warning: the Java applets technology is obsolete and is no longer supported in modern Web browsers. The most stable solution for signing documents with a smart card in the Web browser (as of June 2016) is the hwcrypto.js from ID.ee (the Estonian government crypto project). Is provides JavaScript crypto API and