What does encryption algorithm actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

The rotor-cipher machine Another early instance of a side-channel attack occurred in 1965 when the British MI5 agency attempted to crack a cipher used by the Egyptian Embassy in London.

Above that, there was a series of configurable rotors that were the key to the Enigma's encryption capability. First, let's look at just one rotor. One side had electrical contacts for all 26 letters.

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. The American inventor Edward Hebern ...