* Travis H.:

> This reminds me, when people talk about linearity with regard to a
> function, for example CRCs, exactly what sense of the word do they
> mean?  I can understand f(x) = ax + b being linear,

I wouldn't call that "linear" if b /= 0, "affine" is probably better.
But I'm not familiar with the cryptographic term, maybe it's

> but how exactly does XOR get involved, and are there +-linear
> functions and xor-linear functions?  Are they disjoint?  etc.

It refers to arithmetic over GF(2), the field with two elements.  In
this field, XOR is addition, and AND is multiplication.

The Cryptography Mailing List
Unsubscribe by sending "unsubscribe cryptography" to [EMAIL PROTECTED]

Reply via email to