Hello, Everyone. I learn much, here. There are three (3) major situations where encryption is really helpful. 1) encrypting a Password in the Log-on / Access Control activity . 2) Creating a new password or Message Authentication Code (MAC) and 3) Using encryption to support and provide for a Digital Signature. As Information Technology evolved from "mainframe" computers, "minicomputers" "LAN's" and Laptop PC's , notebook PCs were installed used and connected around the world, so did the need for people to install and maintain them. Those are my concerns about when to use encryption. I always use https:/ And, with so many things; tinkering, tampering, sabotaging, tapping, thumping, and corrupting all things techologic has occurred. Sometimes, I get frustrated with what I understand the legal system is NOT doing. I should feel free to modify my use of an AES Algorithm ( 24--64 bit pre-whitening with Rijndael, Twofish, Serpent, RC6, MARS ) ; applying a larger-than-standard keysize ( i.e: 384--576 bits of key ) ; in a well engineered metal box (form factor) . We should not feel a need to Destroy/Zeroize our systems, when the Feds come knocking on our door. If I encrypt messages about my plans, they should be secure until I change them ( and escape ) It is frustrating, the current situation. Lots of food for thought. Best wishes to all. Joe end: 2:35PM; 14MAR2014 -- ---