
They are two varieties of keys: symmetric and asymmetric. The main difference is that the same keys encrypts and decrypts the data in symmetric processing. While asymmetric processing uses a different key for encrypting and decrypting.
I just had a college class exam. One of the choice in a multiple choice questions was S-HTTP. Now I will share what I know with you. S-HTTP stands for Secure HTTP. It allows encryption to be added to web browsing. In my next post I will go into some SSL details.