I. Emphasize that just as PGP, PEM, and S/MIME work to secure e-mail operations, several related protocols work to secure Web browsers, especially at electronic commerce sites.
II. Compare and contrast Secure Electronic Transactions (SET), Secure Socket Layer (SSL), Secure Hypertext Transfer Protocol (S-HTTP), Secure Shell (SSH-2), and IP Security (IPSec).
III. Establish an understanding that Secure Electronic Transactions (SET) was developed by MasterCard and Visa in 1997 to provide protections from electronic payment fraud. Also state that SET uses DES to encrypt credit card information transfers and RSA for key exchange and provides the security for both Internet-based credit card transactions and credit card swipe systems in retail stores.
IV. Mention SSL uses several algorithms but mainly relies on RSA for key transfer and uses IDEA, DES, or 3DES for encrypted symmetric key-based data transfers.