Do you record reality TV, legal proceedings, corporate meetings, sports or other situations where you need to keep your audio signal away from prying ears? For those instances where your transmission needs to be kept secure, without sacrificing audio quality, Lectrosonics offers AES-256 encryption in our digital wireless systems. Receivers that support encryption are the DCHR, DR, DSQD, M2R (when loaded with 3.X firmware), and the DCR822.
What Is AES-256?
The Advanced Encryption Standard (AES) is the only publicly-accessible, military-grade code available for protecting highly confidential data. AES uses symmetric key encryption to scramble the signal, and only those who have the corresponding key can decrypt it. AES-256, with a key length of 256 bits, supports the largest bit size over a small bandwidth and is nearly unbreakable via brute force approach.
An encryption key is first created in the receiver. The key is then synced with an encryption-capable digital transmitter, via the IR port. The audio will be encrypted and can only be decoded if both receiver and any associated transmitters have the matching encryption key. If you are trying to transmit an audio signal and the keys do not match, no sound will be heard.