Click for homepage
PKS-703
Keyloader for PK-Series tokens - this page is a stub

PKS-703 is a device for transferring data to and from Datakey PK-Series memory tokens, such as the KSD-64 Key Storage Device and the PK-64KC Parallel Key, developed by Datakey (now: ATEK) in Savage (Minnesota, USA) on behalf of the US National Security Agency (NSA). It was used as a key loader, or key transfer device, for secure voice communication equipment like the STU-III.

The device is housed in a plastic enclosure and has a Keyceptacle for a KSD-64 key at the front. An internal 8051 microcontroller, with a simple data protocol allows the key to be accessed from any computer with the appropriate software.

The image on the right shows a typical PKS-703 keyloader as part of a key distribution system. It can be placed on a desktop, aside or on top of a PC, connected to the standard COM-port (RS-232) by means of a 9-pin sub-D plug (DE9). An optional (heavy) metal cradle was available to prevent the interface from slipping off the desk.
  
PKS-703 Datakey keyloader (reader/writer)

The PKS-703 can be used to write each individual byte of the 8KB EEPROM inside the KSD-64 (64 Kbit) individually, or write the entire memory at once. There is no intelligence inside the KSD-64; it is just a plain Electrically Erasable Programmable Read-Only Memory (EEPROM). Creating a valid cryptographic key for a certain purpose and/or security level, is subject to the software driving it, which commonly takes the form of some kind of Electronic Key Management System (EKMS).

Datakey PKS-703 keyloader
Entering a KSD-64
Key fully inserted
Rotate 90 degrees to activate
KSD-64 installed in the PKS-703 keyloader
PKS-703 Datakey keyloader (reader/writer)
Close-up of the Keyceptacle inside the PKS-703
Bare Keyceptacle
A
×
A
1 / 8
Datakey PKS-703 keyloader
A
2 / 8
Entering a KSD-64
A
3 / 8
Key fully inserted
A
4 / 8
Rotate 90 degrees to activate
A
5 / 8
KSD-64 installed in the PKS-703 keyloader
A
6 / 8
PKS-703 Datakey keyloader (reader/writer)
A
7 / 8
Close-up of the Keyceptacle inside the PKS-703
A
8 / 8
Bare Keyceptacle

Further information
Any links shown in red are currently unavailable. If you like the information on this website, why not make a donation?
Crypto Museum. Created: Tuesday 24 January 2023. Last changed: Tuesday, 24 January 2023 - 07:00 CET.
Click for homepage