On: Plain Text Offenders - Did you just email me back ...

[tedunangst]

I believe you have just reinvented OTP, one time passwords.

[qntm → tedunangst]

Geez, you're right. I went all the way through the Wikipedia article on cryptographic hash functions looking for something similar to what I'd just described, but there was no link to THIS:

http://en.wikipedia.org/wiki/Hash_chain

The resemblence is actually spooky. I swear I've never read that article before now.