RE: Please answer the question....

[Dan Kohn <dan@xxxxxxxxxxxxx>]

>I want to know about the meaning of below words.

>1) PGP/MIME

http://www.ietf.org/html.charters/openpgp-charter.html

>2) S/MIME

http://www.ietf.org/html.charters/smime-charter.html

>3) Non-repudiation of Receipt (NRR)

For a background on this and all issues on cryptography I'd highly
recommend Schneier's Applied Cryptography.

http://www.amazon.com/exec/obidos/ASIN/0471117099/qid=910202080/sr=1-
1/002-0660065-8953847

>4) MIME envelope

Read RFCs 2045-2049, especially 2045.

http://www.normos.org/ietf/rfc/rfc2045.txt

>and what is a difference between DES and RSA public key ?

It's all in Applied Cryptography

>I've already read description of internet drafts.
>But I don't understand of listed words.

>Please contact to me soon!!!!

Enjoy your reading.  There's a lot to do.

		- dan
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Daniel Kohn <dan@xxxxxxxxxxxxx>
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