[cap-talk] Dan Bernstein's qmail security lessons paper

[Jonathan S. Shapiro]

On Mon, 2007-12-17 at 15:03 -0500, Sandro Magi wrote:
> Integers are also defined by a ring algebra [2], not a field [3].

Thanks. I stand corrected.

> Computers cannot represent true integer arithmetic because of the
> infinity. ALL supposed computable "integer arithmetic" is modular
> arithmetic [1].

Nah. I'ld agree that all *correct* "integer arithmetic" is modular
because of memory limitations, but I have yet to see a BigNum
implementation in the wild that actually checks for this error. :-)