A cipher device was a term used by the US military in the first half of the 20th century to describe a manually operated cipher equipment that converted...

The Enigma machine is a cipher device developed and used in the early- to mid-20th century to protect commercial, diplomatic, and military communication...

of the disks is the cipher key, and both sender and receiver must arrange the disks in the same predefined order. Jefferson's device had 36 disks while...

The SYKO cipher device was a compact British cipher apparatus in use during World War II. It was invented and patented by Morgan O'Brien before the war...

In cryptography, a rotor machine is an electro-mechanical stream cipher device used for encrypting and decrypting messages. Rotor machines were the cryptographic...

automatic cipher device, a wheel that implemented a partial realization of his invention. In the Vigenère cipher, a polyalphabetic cipher, encryption...

number of cipher devices. Rotor machines from the 1940s and 1950s were mechanical marvels. The first generation electronic systems were quirky devices with...

Algorithm – a block cipher which was used for securing mobile phones in the United States. Cipher Cipher device Cipher system Cipher text Ciphony Civision...

developments but only the final form of the one adopted by the Army, Strip Cipher Device Type, M-138-A. This form used an aluminum base into which channels with...

stream cipher is a symmetric key cipher where plaintext digits are combined with a pseudorandom cipher digit stream (keystream). In a stream cipher, each...

The Lorenz SZ40, SZ42a and SZ42b were German rotor stream cipher machines used by the German Army during World War II. They were developed by C. Lorenz...

level. These were the Enigma machine, the teleprinter cipher attachment (Lorenz cipher), and the cipher teleprinter the Siemens and Halske T52, (Siemens T-43)...

improved version of Thomas Jefferson's cipher cylinder. It was later refined into the US Army M-94 cipher device. Historian David Kahn describes him as...

A cipher suite is a set of algorithms that help secure a network connection. Suites typically use Transport Layer Security (TLS) or its deprecated predecessor...

identical cipher. A similar device to the Jefferson Disk, the M-94, was developed in 1917 independently by US Army Major Joseph Mauborne. This device was used...

number in the cryptogram. For this encipherment Alberti used a decoder device, his cipher disk, which implemented a polyalphabetic substitution with mixed alphabets...

The HC-9 was a mechanical cipher device manufactured by the Swedish company AB Transvertex. It was designed in the early 1950s for the Swedish Armed Forces...

The Japanese M-1 cipher machine was a mechanical device the Japanese used for performing cryptography sometime during the 1930s. More specifically it was...

The Playfair cipher or Playfair square or Wheatstone–Playfair cipher is a manual symmetric encryption technique and was the first literal digram substitution...

checkerboard, is a device invented by the ancient Greeks Cleoxenus and Democleitus, and made famous by the historian and scholar Polybius. The device is used for...

In cryptography, a block cipher mode of operation is an algorithm that uses a block cipher to provide information security such as confidentiality or...

using digits. It also is known as a monôme-binôme cipher. In 1555, Pope Paul IV created the office of Cipher Secretary to the Pontiff. In the late 1580s, this...

Adiantum is a cipher composition for disk encryption. It uses a new cipher construction called HBSH (hash, block cipher, stream cipher, hash), specifically...

cryptography, a Feistel cipher (also known as Luby–Rackoff block cipher) is a symmetric structure used in the construction of block ciphers, named after the...

In the history of cryptography, a grille cipher was a technique for encrypting a plaintext by writing it onto a sheet of paper through a pierced sheet...

method is slow and requires literary skill. Above all, any physical cipher device is subject to loss, theft and seizure; so to lose one grille is to lose...

The Code-O-Graph is a field cipher device and identifier from the Captain Midnight radio serial. In the story line they were used by agents of the Secret...

device was invented by Charles Wheatstone several years after Wadsworth. Kruh, Louis (1982). "THE MYSTERY OF COLONEL DECIUS WADSWORTH'S CIPHER DEVICE"...

University, and had once stolen a sorority chapter's ritual book and cipher device. In more recent years, he made extensive online posts about Kappa Kappa...

stated that the device had been dubbed a "bomb" "for lack of a better idea". Perhaps the most credible explanation is given by a Cipher Bureau technician...