I am hard for time here and having trouble running down info to google and avenues to explore. I am doing a report on a scenario in which 3DES was used to encryt a message to which a buisness transaction was used.


Long story but the the part I am working on now explores possible ways to ensure that future emails are more assured to be coming from a particular person.


I know that RSA has digital signatures and envelopes and have read a little about that but does 3DES have anything similiar to this? I know the those both work because the use the public key of a public/private set and 3DES only uses a single key to both encrypt and decrypt but are there authenticaion methods available to those who use 3DES to be assured that the message came from the person the message says its from.


Sorry for the typos but was in a rush.


CaseStudy