Пристрій для шифрування даних в режимі зчеплення блоків даних

Abstract

A data encryption device in block chaining mode comprises a read-write storage connected to a first data register, a first modulo 2 adder connected to cryptographic processor, connected to a second modulo 2 adder, connected to the read-write storage, a first logic multiplication device connected to the first modulo 2 adder, a second logic multiplication device connected to the second modulo 2 adder, a second data register. In addition, a switching device, modulo 2n adder, third modulo 2 adder, third data register and a bit pseudo-random sequence generator are incorporated.