Subject: Please answer the question......

From: "김복칠" <[email-masked]>
Date: Wed, 04 Nov 1998 20:22:28 +0900

I am a student in korea.

I want to know about the meaning of below words.

1) PGP/MIME
2) S/MIME
3) Non-repudiation of Receipt (NRR)
4) MIME envelope

and what is a difference between DES and RSA public key ?
I've already read description of internet drafts.
But I don't understand of listed words.

Please contact to me soon!!!!