> 128-bit key, but this gets compressed to 56 bits before it encrypts traffic A5/1 had a similar issue in which the weakness was deliberately added. I have som

> 128-bit key, but this gets compressed to 56 bits before it encrypts traffic A5/1 had a similar issue in which the weakness was deliberately added. I have some notes and references on it. Super interesting https://github.com/alexander-hanel/asm-examples/tree/master/A51#background-aka-the-tmz-of-a51 https://github.com/alexander-hanel/asm-examples/tree/master/...