Ben Laurie
Mon, 05 May 2008 16:58:17 -0700
Perry E. Metzger wrote:
Ben Laurie <[EMAIL PROTECTED]> writes:I think that's blatantly untrue. For example, if I look at an AND gate, I can be absolutely sure about its security properties.An AND gate isn't Turing Equivalent.
Nor are most algorithms.
Rice's theorem says you can't _always_ solve this problem. It says nothing about figuring out special cases.Any modern processor is sufficiently larger than an AND gate that it is no longer tractable. It isn't even possible to describe the security properties one would need to (formally) prove.
I won't debate that, but its not a consequence of Rice's Theorem. -- http://www.apache-ssl.org/ben.html http://www.links.org/ "There is no limit to what a man can do or how far he can go if he doesn't mind who gets the credit." - Robert Woodruff --------------------------------------------------------------------- The Cryptography Mailing List Unsubscribe by sending "unsubscribe cryptography" to [EMAIL PROTECTED]