I am writing a mailing list application and want to include a link in
all e-mails to unsubscribe. I don't want anyone to be able to come to
the site and unsubscribe an address without having to enter a password.
I don't want people to have to enter a password if they click on a link
to unsubscribe. I don't want to include the password in the e-mail so
anyone reading it can find out the password.
Basically I want to encrypt the password in the link so that the server
can de-code the password, check it against the password in the DB then
unsubscribe the address.
I know nothing about this sort of stuff so any help much appreciated.
Thanks
Giles Roadnight
http://giles.roadnight.name
