ECMM6010 Fall 2003: Assignment 5 (Due Monday, November 24, 8:43am)

Authentication and privacy: (10 point)

Write me an email (to tt@cs.dal.ca) with a file attachment (please let me know if you send it from a Unix system as I seem to have problems to receive attachments from Unix pine or mail). The attached file should be an ASCII file with a message that only I can read and for which I have considerable assurance that this file (rather than the email) is from you.

Note: I have the free PGP tool for personal use, version 8.0.3, running on my system. My public key is printed below (and also available on our course webpage at http://www.cs.dal.ca/~tt/ECMM6010).

 

-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: PGP 8.0.3 - not licensed for commercial use: www.pgp.com
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=ZBPs
-----END PGP PUBLIC KEY BLOCK-----