When was the cpu made




















I carefully extract the kilogram pound machine. There's a hand crank on the right side, enabling the machine to operate away from mains power. As I cautiously turn it, while typing on the mechanical keyboard, the nine rotors advance, and embossed printing wheels feebly strike a paper tape.

I decided on the spot to do everything in my power to find an HX that I could restore to working order. If you've never heard of the HX until just now, don't feel bad. Most professional cryptographers have never heard of it. Yet it was so secure that its invention alarmed William Friedman, one of the greatest cryptanalysts ever and, in the early s, the first chief cryptologist of the U.

After reading a Hagelin patent more on that later , Friedman realized that the HX, then under development, was, if anything, more secure than the NSA's own KL-7 , then considered unbreakable. The reasons for Friedman's anxiety are easy enough to understand.

The HX had about 10 possible key combinations; in modern terms, that's equivalent to a 2,bit binary key. For comparison, the Advanced Encryption Standard , which is used today to protect sensitive information in government, banking, and many other sectors, typically uses a or a bit key.

In the center of the cast-aluminum base of the HX cipher machine is a precision Swiss-made direct-current gear motor. Also visible is the power supply [lower right] and the function switch [left], which is used to select the operating mode—for example, encryption or decryption.

Peter Adams. A total of 12 different rotors are available for the HX, of which nine are used at any one time. Current flows into one of 41 gold-plated contacts on the smaller-diameter side of the rotor, through a conductor inside the rotor, out through a gold-plated contact on the other side, and then into the next rotor. The incrementing of each rotor is programmed by setting pins, which are just visible in the horizontal rotor.

Just as worrisome was that CAG was a privately owned Swiss company, selling to any government, business, or individual. But traffic encrypted by the HX would be unbreakable.

Friedman and Hagelin were good friends. During World War II, Friedman had helped make Hagelin a very wealthy man by suggesting changes to one of Hagelin's cipher machines, which paved the way for the U. Army to license Hagelin's patents. The resulting machine, the MB , became a workhorse during the war, with some , units fielded. Hagelin agreed not to sell his most secure machines to countries specified by U.

He convinced Hagelin not to manufacture the new device, even though the machine had taken more than a decade to design and only about 15 had been built, most of them for the French army. However, was an interesting year in cryptography. Machine encryption was approaching a crossroads; it was starting to become clear that the future belonged to electronic encipherment.

Even a great rotor machine like the HX would soon be obsolete. That was a challenge for CAG, which had never built an electronic cipher machine. Introduced in , the machine was a failure. Also in , Hagelin's son Bo, who was the company's sales manager for the Americas and who had opposed the transaction, died in a car crash near Washington, D. Although the H was a failure, it was succeeded by a machine called the H, of which thousands were sold.

The H was designed with NSA assistance. To generate random numbers, it used multiple shift registers based on the then-emerging technology of CMOS electronics. This mathematical algorithm was created by the NSA, which could therefore decrypt any messages enciphered by the machine. From then on, its electronic machines, such as the HC series, were secretly designed by the NSA, sometimes with the help of corporate partners such as Motorola.

This U. The backdooring of all CAG machines continued until , when the company was liquidated. William F. Friedman [top] dominated U. National Security Agency. His friend Boris Hagelin [bottom], a brilliant Swedish inventor and entrepreneur, founded Crypto AG in in Zug, Switzerland, and built it into the world's largest cipher-machine company.

TOP, U. Parts of this story emerged in leaks by CAG employees before and, especially, in a subsequent investigation by the Washington Post and a pair of European broadcasters, Zweites Deutsches Fernsehen , in Germany, and Schweizer Radio und Fernsehen , in Switzerland. The Post 's article , published on 11 February , touched off firestorms in the fields of cryptology, information security, and intelligence.

The revelations badly damaged the Swiss reputation for discretion and dependability. They triggered civil and criminal litigation and an investigation by the Swiss government and, just this past May, led to the resignation of the Swiss intelligence chief Jean-Philippe Gaudin, who had fallen out with the defense minister over how the revelations had been handled.

In fact, there's an interesting parallel to our modern era, in which backdoors are increasingly common and the FBI and other U. Even before these revelations, I was deeply fascinated by the HX, the last of the great rotor machines. This particular unit, different from the one I had seen a decade before, had been untouched since I immediately began to plan the restoration of this historically resonant machine.

People have been using codes and ciphers to protect sensitive information for a couple of thousand years. The first ciphers were based on hand calculations and tables. In , a mechanical device that became known as the Alberti cipher wheel was introduced. Then, just after World War I, an enormous breakthrough occurred, one of the greatest in cryptographic history : Edward Hebern in the United States, Hugo Koch in the Netherlands, and Arthur Scherbius in Germany, within months of one another, patented electromechanical machines that used rotors to encipher messages.

Thus began the era of the rotor machine. Scherbius's machine became the basis for the famous Enigma used by the German military from the s until the end of WW II. To understand how a rotor machine works, first recall the basic goal of cryptography: substituting each of the letters in a message, called plaintext, with other letters in order to produce an unreadable message, called ciphertext. It's not enough to make the same substitution every time—replacing every F with a Q , for example, and every K with an H.

Such a monoalphabetic cipher would be easily solved. A simple cipher machine, such as the Enigma machine used by the German Army during World War II, has three rotors, each with 26 positions. Each position corresponds to a letter of the alphabet. Electric current enters at a position on one side of the first rotor, corresponding to a letter, say T.

The current travels through two other rotors in the same way and then, finally, exits the third rotor at a position that corresponds to a different letter, say R. So in this case, the letter T has been encrypted as R. The next time the operator strikes a key, one or more of the rotors move with respect to one another, so the next letter is encrypted with an entirely different set of permutations.

In the Enigma cipher machines [below] a plugboard added a fixed scramble to the encipherment of the rotors, swapping up to 13 letter pairs. A rotor machine gets around that problem using—you guessed it—rotors. Start with a round disk that's roughly the diameter of a hockey puck, but thinner. On both sides of the disk, spaced evenly around the edge, are 26 metal contacts, each corresponding to a letter of the English alphabet.

Inside the disk are wires connecting a contact on one side of the disk to a different one on the other side. The disk is connected electrically to a typewriter-like keyboard. When a user hits a key on the keyboard, say W , electric current flows to the W position on one side of the rotor. The current goes through a wire in the rotor and comes out at another position, say L.

However, after that keystroke, the rotor rotates one or more positions. So the next time the user hits the W key, the letter will be encrypted not as L but rather as some other letter. Though more challenging than simple substitution, such a basic, one-rotor machine would be child's play for a trained cryptanalyst to solve.

So rotor machines used multiple rotors. Versions of the Enigma, for example, had either three rotors or four. In operation, each rotor moved at varying intervals with respect to the others: A keystroke could move one rotor or two, or all of them. Operators further complicated the encryption scheme by choosing from an assortment of rotors, each wired differently, to insert in their machine.

Military Enigma machines also had a plugboard, which swapped specific pairs of letters both at the keyboard input and at the output lamps. The rotor-machine era finally ended around , with the advent of electronic and software encryption, although a Soviet rotor machine called Fialka was deployed well into the s.

The HX pushed the envelope of cryptography. For starters it has a bank of nine removable rotors. The unit I acquired has a cast-aluminum base, a power supply, a motor drive, a mechanical keyboard, and a paper-tape printer designed to display both the input text and either the enciphered or deciphered text. In encryption mode, the operator types in the plaintext, and the encrypted message is printed out on the paper tape. Each plaintext letter typed into the keyboard is scrambled according to the many permutations of the rotor bank and modificator to yield the ciphertext letter.

In decryption mode, the process is reversed. In the last few years Intel has been working hard to gain back alot of the embedded customers they once had.

With their new CPUs Atom etc they will have several specs that they guarentee an End-Of-Life no earlier then 7 years from when it first comes out. This gives engineers a bit more breathing room in their design life analysis. Something else of interesting note: Speed Or the lack of, many of the 'old' CPUs still in production are being made at exactly the same speed as they were when they were introduced, or not much faster.

The Intel i is the exact same thing, still available at its initial speed. The MCS is a different story. It is a very robust architecture and lends itself to high clock speeds. It was released at 12MHz in and stayed at 12MHz for 15 years or more. This is because the is so easy to program and work with and actually benefits from higher clocks. CPU Type Introduced. All rights reserved.

This material may not be published, broadcast, rewritten, or redistributed without the express written permission of CPUShack. CPU Type. Intel Awesome PC Accessories. Best Linux Laptops. Best Gaming Monitors. Best iPads. Best iPhones. Best External Hard Drives. Browse All News Articles. Smart TVs Ads. Team Comes to Workplace by Meta. Block People Spotify. Verizon Selling PS5. Windows 11 SE Explained. Windows 11 SE. Microsoft Default Browser Firefox. Google's New Pet Art.

Robinhood Hack Find Downloaded Files on an iPhone. Use Your iPhone as a Webcam. Hide Private Photos on iPhone. Take Screenshot by Tapping Back of iPhone. Should You Upgrade to Windows 11? Browse All Windows Articles. Copy and Paste Between Android and Windows. Protect Windows 10 From Internet Explorer.

Mozilla Fights Double Standard. Connect to a Hidden Wi-Fi Network.



0コメント

  • 1000 / 1000