Encryption (WaveNet) - LSM 3.5 SP3 Basic Online
Advanced cryptography protects the data that is transported in your WaveNet.
End-to-end encryption
End-to-end means in this context: between central software and locking devices. The data is encrypted and leaves the central software. It is only decrypted again when the locking device is closed.
Communication | Encryption |
|---|---|
End-to-end (general) | 3DES (112 bit) |
Access lists (against unauthorised reading) | Single DES (56 bit) |
Broadcast signals | AES (128 bit) |
Digitally signed data packages
The 128-bit signing of the data packets protects against manipulation on the radio link. If the signature of a data packet is not correct, the data packet is ignored.
Protection against replay attacks
Each safety-relevant data packet contains a counter. This counter is incremented for each new data packet. If a data packet with the same counter reading arrives again, the data packet is ignored. This means that if an attacker records a data packet and sends it again (replay attack), the counter of the data packet is the same as that of the original packet and the copy of the attacker is recognized and therefore ignored.