There are mainly two different types of BISS encryption used: BISS-1 transmissions are protected by a 12 digit hexadecimal "session key" that is agreed by the transmitting and receiving parties prior to transmission.
Ada dua jenis enkripsi BISS yang digunakan: Transmisi BISS-1 dilindungi oleh "kunci sesi" heksadesimal 12 digit yang disepakati oleh pihak pengirim dan penerima sebelum transmisi.