All of these questions are answered in Bruce Schneier's excellent book, Applied Cryptography, as well as in the sci.crypt FAQ and other places. Please take a look. | I was wondering if anyone would be able to help me out. I am writing a | research paper and I need some interviews for it. If you could answer any | of these questions about security, I would greatly appreciate it. Thanks | for your time. | | --Bob Marquis | | Please send responses to rmarquis@umich.edu | | | - How can PGP help secure something like e-mail? | | - Are there any encryption schemes which are "unbreakable"? | | - What would someone need to do to send an e-mail message which cannot be | read or altered by anyone else, or is it not possible? | -- "It is seldom that liberty of any kind is lost all at once." -Hume