Re: [SAGE] Long lived, cheap data storage (securely)

[Dan Riley <dsr@mail.lns.cornell.edu>]

Philip Brown <phil@bolthole.com> writes:
> I hear that one of the best solutions for encryption, for data of limited
> length, is to pick a book, and then use the text as a cypher key.
[...]
> The problem with that, is that I dont know the ramification of what happens
> when you have so much data, you have to keep recycling the book over it.

A one time pad used twice is insecure.  Google "venona" for an example.

-dan