Key management | National Security Agency encryption devices
A fill device or key loader is a module used to load cryptographic keys into electronic encryption machines. Fill devices are usually hand held and electronic ones are battery operated. Older mechanical encryption systems, such as rotor machines, were keyed by setting the positions of wheels and plugs from a printed keying list. Electronic systems required some way to load the necessary cryptovariable data. In the 1950s and 1960s, systems such as the U.S. National Security Agency KW-26 and the Soviet Union's Fialka used punched cards for this purpose. Later NSA encryption systems incorporated a serial port fill connector and developed several common fill devices (CFDs) that could be used with multiple systems. A CFD was plugged in when new keys were to be loaded. Newer NSA systems allow "over the air rekeying" (OTAR), but a master key often must still be loaded using a fill device. NSA uses two serial protocols for key fill, DS-101 and DS-102. Both employ the same U-229 6-pin connector type used for U.S. military audio handsets, with the DS-101 being the newer of the two serial fill protocols. The DS-101 protocol can also be used to load cryptographic algorithms and software updates for crypto modules. Besides encryption devices, systems that can require key fill include IFF, GPS and frequency hopping radios such as Have Quick and SINCGARS. Common fill devices employed by NSA include: * KYK-28 pin gun used with the NESTOR (encryption) system * KYK-13 Electronic Transfer Device * KYX-15 Net Control Device * MX-10579 ECCM Fill Device (SINCGARS) * KOI-18 paper tape reader. Can read 8-level paper or PET tape, which is manually pulled through the reader slot by the operator. It is battery powered and has no internal storage, so it can load keys of different lengths, including the 128-bit keys used by more modern systems. The KOI-18 can also be used to load keys into other fill devices that do have internal storage, such as the KYK-13 and AN/CYZ-10. The KOI-18 only supports the DS-102 interface. * AN/CYZ-10 Data Transfer Device (DTD) - a small PDA-like unit that can store up to 1000 keys, maintains an automatic internal audit trail of all security-relevant events that can be uploaded to the LMD/KP, encrypts key for storage, and is programmable. It is capable of keying multiple information systems security (INFOSEC) devices and is compatible with such COMSEC equipment as SINCGARS radios, KY-57 VINSON, KG-84, and others that are keyed by common fill devices (CFDs). The AN/CYZ-10 supports both the DS-101 and DS-102 interfaces. It was developed in the early 1990s, weighs about 4 lb (1.8 kg), and was designed to be fully compatible with future INFOSEC equipment meeting DS-101 signaling and benign fill standards. It will eventually replace the legacy family of CFDs, including the KYK-13, KYX-15 electronic storage devices, and the KOI-18 paper tape reader. Only the DTD and the KOI-18 support newer, 128-bit keys. * Secure DTD2000 System (SDS) - Named KIK-20, this was the next generation common fill device replacement for the DTD when it started production in 2006. It employs the Windows CE operating system. * AN/PYQ-10 Simple Key Loader (SKL) - a simpler replacement for the DTD. * KSD-64 Crypto ignition key (CIK) * KIK-30, a more recent fill device, is trademarked as the "Really Simple Key Loader" (RASKL) with "single button key-squirt." It supports a wide variety of devices and keys. The older KYK-13, KYX-15 and MX-10579 are limited to certain key types. (Wikipedia).
This video will show how to make a vacuum pump, a device that can be used to suck the air out of sealed environments. This is the same pump I use to operate my vacuum cannon seen here: http://youtu.be/CVL99yIB3NQ A clear vacuum chamber such as the one seen in the video can be obtained by
From playlist Practical Projects & Skills
http://www.mekanizmalar.com This is a flash animation of a hydraulic closed center valve.
From playlist Pneumatic and Hydraulics
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From playlist Mechanical Engineering
http://www.mekanizmalar.com A wobbler is usually the first type engine made by small engine builders. The wobbler does not need tiny moving valves which makes manufacturing simple.
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From playlist physics
How plunger pump works (Must Watch). ✔
More details visit: http://www.techtrixinfo.com/ Working of a Plunger Pump, it is a type of Reciprocating pump. This is a reciprocating type of pump. Was used in automobiles as lubrication pumps in the earlier days, now it's obsolesce. Main components if a Plunger pump are: Plunger.
From playlist Hydraulics and related stuff.
Hydraulic cylinder with fixed piston
Green cylinder with machine table reciprocates. Pressure fluid is conducted into cylinder via holes on fixed piston rod. The hoses can be stationary. In case using holes on the cylinder the hoses have to move with the cylinder. The arrows show flows of pressure fluid.
From playlist Mechanisms
Loose the screw for moving the stopper to new position and then tighten it. The stopper is kept immobile by wedge mechnism.
From playlist Mechanisms
6. Charge Separation, Part II: Diode Under Illumination
MIT 2.627 Fundamentals of Photovoltaics, Fall 2011 View the complete course: http://ocw.mit.edu/2-627F11 Instructor: Tonio Buonassisi This lecture begins with the current-voltage (IV) response of a pn-junction, under varied illumination & bias conditions. IV curves lead to solar conversio
From playlist MIT 2.627 Fundamentals of Photovoltaics, Fall 2011
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From playlist APS Satellite Meeting at ICTS-2022
Broken Symmetry States at Half-integer Band Fillings in Twisted Bilayer Graphene by Saisab Bhowmik
DISCUSSION MEETING APS SATELLITE MEETING AT ICTS ORGANIZERS Ranjini Bandyopadhyay (RRI, India), Subhro Bhattacharjee (ICTS-TIFR, India), Arindam Ghosh (IISc, India), Shobhana Narasimhan (JNCASR, India) and Sumantra Sarkar (IISc, India) DATE & TIME: 15 March 2022 to 18 March 2022 VENUE:
From playlist APS Satellite Meeting at ICTS-2022
DEFCON 18: Breaking Bluetooth by Being Bored 2/3
Speaker: JP Dunning Bluetooth has come leaps and bounds in its past decade of use. Finding its way into billions of devices world wide. This talk introduces several new Bluetooth attack tools and projects focusing on automated pen-testing, obfuscation, Bluetooth profile cloning, war-nib
From playlist DEFCON 18-3
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From playlist MIT 2.627 Fundamentals of Photovoltaics, Fall 2011
How-To-Do-It: Digitally Replace a Background
*** Note: Watching in HD 1080 and full screen is strongly recommended. *** MIT RES.10-001 Making Science and Engineering Pictures: A Practical Guide to Presenting Your Work, Spring 2016 View the complete course: http://ocw.mit.edu/RES-10-001S16 Instructor: Felice Frankel In this tutorial,
From playlist MIT RES.10-001 Making Science and Engineering Pictures: A Practical Guide to Presenting Your Work, Spring 2016
Tunneling between Landau levels in a quantum dot in the integer and by Marc Röösli
DISCUSSION MEETING : EDGE DYNAMICS IN TOPOLOGICAL PHASES ORGANIZERS : Subhro Bhattacharjee, Yuval Gefen, Ganpathy Murthy and Sumathi Rao DATE & TIME : 10 June 2019 to 14 June 2019 VENUE : Madhava Lecture Hall, ICTS Bangalore Topological phases of matter have been at the forefront of r
From playlist Edge dynamics in topological phases 2019
Electronic devices made possible by p-n junctions
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From playlist Introduction to Materials Science & Engineering Fall 2019
Determination of Topological Edge Quantum Numbers of Fractional Quantum... by Saurabh Srivastava
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From playlist APS Satellite Meeting at ICTS-2022
Progress on vacuum chamber build - helium leak detection, custom flanges
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From playlist Mechanics
Using Futures to wrap an unsafe USB API to play audio directly - Denver Rust Meetup
Topic: Using Futures to wrap an unsafe USB API to play audio directly Speaker: Brent Gardner - Director of Cloud Engineering, Mersive Thank you Mersive for sponsoring the space, food, and drinks for the meetup! https://www.meetup.com/Rust-Boulder-Denver/events/284371995/
From playlist Denver Rust Meetup