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Although several analog encryption types were tested in the early 1980s, VideoCipher II became the de facto analog encryption standard that C-Band satellite pay TV channels used. Early adopters of VCII were HBO and Cinemax, encrypting full time beginning in January 1986; Showtime and The Movie Channel beginning in May 1986; and CNN and Headline ...
An E-8 crew member entering data using an AN/PYQ-10 before a flight. The AN/PYQ-10 Simple Key Loader (SKL) is a ruggedized, portable, hand-held fill device, for securely receiving, storing, and transferring data between compatible cryptographic and communications equipment.
PRC-77 VHF radio with digital voice encryption device. Communications security is the discipline of preventing unauthorized interceptors from accessing telecommunications [1] in an intelligible form, while still delivering content to the intended recipients.
A HAIPE is an IP encryption device, looking up the destination IP address of a packet in its internal Security Association Database (SAD) and picking the encrypted tunnel based on the appropriate entry. For new communications, HAIPEs use the internal Security Policy Database (SPD) to set up new tunnels with the appropriate algorithms and settings.
Encryption of the data sent over DisplayPort, DVI, HDMI, GVIF, or UDI interfaces prevents eavesdropping of information and man-in-the-middle attacks. Key revocation prevents devices that have been compromised and cloned from receiving data. Each HDCP-capable device has a unique set of 40 56-bit keys.
These formats provide a consistent framework for transferring key and authentication data which is independent of the key generation technique, encryption algorithm and authentication mechanism. ISAKMP is distinct from key exchange protocols in order to cleanly separate the details of security association management (and key management) from ...
the party which initializes the encryption devices (typically the manufacturer of the device). The BDK is usually stored inside a tamper-resistant security module (TRSM), or hardware security module (HSM). It must remain clear that this key is not the one used to initialize the encryption device that will participate in DUKPT operations.
A Digital transport/terminal adapter (or DTA) is a device used by cable companies who are switching to all-digital cable systems. They typically have an RF input for receiving service, and a modulated output on Channel 3 or 4 that allows a TV to be set to channel 3 or 4 and have the tuner change channels.