1. Perhaps you want to use digital coupons
to launch a sales pr
omotion. First, set up a server. In most cases, you'll need a 486/66 or better PC or a PowerPC based Macintosh (with 8 MB of RAM and a 500-MB hard drive) and an Internet connection.
2. Publish a public key.
Standard encryption software, such as PGP, will let you do this using easy menu selections.
3. Create coupons.
Encryption software can also help here. A coupon consists of a short text message with essential details, like the issuing company's name, the value of the coupon, and a unique serial number to guard against someone trying to redeem a coupon more than once. If you're using PGP, the coupon will look like this:
4. Sign the coupon with a digital signature,
which can also be automatically generated by encryption software.
5. Issue co
upons.
You can do this by sending the coupon file via e-mail to customers that buy a particular product you're promoting or any other criteria you choose. Anyone can trade or exchange the coupon via the Web or e-mail through clipping, cutting, or pasting the text.
6. Consumers verify the coupon's validity
by checking the digital signature of the note. Web servers can also verify that a particular serial number hasn't been redeemed. Consumers redeem a coupon by pasting it into a Web form or mailing ti to an e-mail processor.
7. Redeem the coupon.
Note on the coupon database that this particular serial number is no longer valid and send one free limerick to the consumer.
Flexible C++
Matthew Wilson
My approach to software engineering is far more pragmatic than it
is
theoretical--and no language better exemplifies this than C++.
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