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Use "pre-shared" in a sentence
"Home users are pretty much stuck with pre-shared keys if they do not want to configure/run a RADIUS server all the time though."
"Yeah, and things will just be super-good when you use an alternative communication model based around pre-shared one time pads (lots of data) or one time keys with say AES256 on a nicely minimal redundancy audio codec."
"IP address, pre-shared key and my user name and password and hey-presto, it works."