Алгоритми шифрування ГОСТ 28147-89-IDEA8-4 и ГОСТ 28147-89-RFWKIDEA8-4

Gulom Numovych Tuychiev

Анотація


У даній роботі представлені нові алгоритми шифрування ГОСТ 28147-89-IDEA8-4 і ГОСТ 28147-89-RFWKIDEA8-4 на основі мереж IDEA8-4 і RFWKIDEA8-4 з використанням раундової функції алгоритму шифрування ГОСТ 28147-89. Довжина блоку алгоритму шифрування становить 256 біт, кількість ра-ундів дорівнює 8, 12, 16, а довжина ключів - від 256 до 1024 біт. Залежно від конфіденційності інформації і швидкості шифрування ми можемо вибрати кількість раундів і довжину ключа. У алгоритмах шифрування і дешифрування використовують один і той же алгоритм, тільки коли реалізується дешифрування тоді обчислюються зворотні раундові ключі в залежності від операцій, і вони застосовуються в зворотному порядку.

Ключові слова


схема Лай-Масси; раундові функція; раундові ключі; перетворення вихідного сигналу; множення; додавання; S-box

Посилання


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