Logitech 2.4 GHz keyboards use 128-bit AES symmetric encryption. As I understand it, the encryptiion key is generated at the time of pairing in both the the ke

Logitech 2.4 GHz keyboards use 128-bit AES symmetric encryption. As I understand it, the encryptiion key is generated at the time of pairing in both the the keyboard and the receiver independently, and thus never transmitted wirelessly. This is accomplished by having a secret algorithm that is encoded in both devices and produces the key based on some random input data that is shared between the devices at the time of pairing. Further information here: http://www.logitech.com/images/pdf/roem/Logitech_Adv_24_Ghz_Whitepaper_BPG2009.pdf http://www.logitech.com/images/pdf/roem/Logitech_Adv_24_Ghz_...