Re: Encrypted Cordless phones

Both phones have all the usual advanced features like auto-redial and such. Neither company's literature tells what encryption technology they uses.

It doesn't much matter; they're using ten- and sixteen-bit keys. Assuming it takes some 50 ms to tell voice from the white noise that a failed attempt will generate, a brute-force attack on these systems should take under a minute and an hour respectively, worst-case. This is hardly rock-solid security; it looks like it rests mostly on nobody reverse-engineering their algorithm.

S a n d y

Eli ebrandt@jarthur.claremont.edu