An anti-alteration system for Web contents is described. A public-web-server computer stores safe web files encrypted from the original web contents, including static files (such as html, text, jpg, gif, wav, mp3, asp, exe, etc.) and dynamic files (such as php, perl, java script, etc.). An original-Web-server...http://www.google.es/patents/US7313823?utm_source=gb-gplus-sharePatente US7313823 - Anti-alternation system for web-content