Homepage Cyberwar Cybersecurity Cyberspace C-Spionage C-Sabotage Gefährdung Kriminalität Computer Kommunikation mod. Systeme Der Mensch Beratung Bildung Fachberichte Information Kryptologie Emission Verschlüsselung Forschung Begriffe Recht Technik Verschiedenes
.R F I D  - Systeme   Verschlüsselungs- und Chiffriertechnik   Rotorsysteme   Computerkryptologie
HC _ 2203
Ansicht
Information
aus Crypto Museum

more information
HC-2203
PSTN Phone Encryptor

The HC-2203 is a PSTN telephone encryptor, developed by Crypto AG (Hagelin) in Switzerland and was introduced in the early 2000s. It can be connected between any ordinary telephone set and an analogue line and comes with PTT-approval for most countries. It is compatible with the HC-24x3 secure GSM phone. The HC-2203 is still available from Crypto AG today (2011).

The image on the right shows a typical HC-2203 unit. It is a fairly compact device, housed in a sturdy die-cast aluminium enclosure. It needs an external power supply unit (PSU) between 12 and 32 Volt and is connected in between a standard analogue telephone set and the line.

The HC-3302 features a rubber key pad with 17 buttons, 3 status LEDs and a clear 4-line LCD display. Inside the unit is a Crypto AG security module, which consists of a PCMCIA card with custom-made crypto hardware. At the front is a slot for a standard smart-card (shown here).
HC-2203 with key card

The HC-2203 can handle secure data transmissions at speeds between 2400 and 19200 baud with RTS/CTS handshaking. For full-duplex voice calls, a data speed between 2400 and 9600 baud is automatically selected, depending on the quality of the analogue phone line. At 9600 baud, speech legibility is extremely good. Unlike the older HC-3300 crypto phone, the HC-2203 is suitable for use over satellite, allowing as much as two hops in each direction.

It is extremely easy to install an HC-2203 as it can be used with virtually any existing analogue setup. All connections are at the rear of the unit. From left to right, there are connectors for AUX (firmware updates), DATA (V.24 serial port), POWER (24V DC), LINE (analogue PSTN) and PHONE.