Алгоритм, определяемый ГОСТ 28147-8

Алгоритм, определяемый ГОСТ 28147-89 (рис. 17), имеет длину ключа шифрования 256 бит. Он шифрует информацию блоками по 64 бит (такие алгоритмы называются блочными), которые затем разбиваются на два блока по 32 бит (N1 и N2). Блок N1 обрабатывается определенным образом, после чего его значение складывается со значением блока N2 (сложение выполняется по модулю 2, то есть применяется логическая операция XOR - "исключающее или"), а затем блоки меняются местами. Данное преобразование выполняется определенное число раз ("раундов"): 16 или 32 в зависимости от режима работы алгоритма. В каждом раунде выполняются две операции.

Результаты (английский) 1:

The algorithm defined by GOST 28147-89 (fig. 17), has a length of 256-bit encryption key. It encrypts the information in blocks of 64 bits (such algorithms, called block), which is then divided into two blocks of 32 bits (N1 and N2). The N1 block is processed in a particular way, then its value is with the value of the block of N2 (addition is performed modulo 2, i.e. applies logical operation XOR-exclusive or), and then blocks are swapped. This conversion is performed for a certain number of times ("rounds"): 16 or 32, depending on the operating mode of the algorithm. In each round, performed two operations.

Результаты (английский) 2:

The algorithm defined GOST 28147-89 (Fig. 17), the length of the encryption key has 256 bits. It encrypts data in blocks of 64 bits (such algorithms are called block) which are then divided into two blocks of 32 bits (N1 and N2). N1 block is processed in a certain way, then its value is added to the N2 unit value (addition is performed modulo 2, that is, applied logic operation XOR - "XOR"), and then the blocks are interchanged. This conversion is performed by a certain number of times ( "rounds"): 16 or 32 depending on the operating mode of the algorithm. In each round, two operations are performed.

Результаты (английский) 3:

the algorithm defined by gost (figure 1). 17), the encryption key length of 256 bits. it encrypts the information blocks of 64 bits (such algorithms are called block), which are then separated on the two banks of 32 bits (n1 and n2). the block 1 is processed in a certain manner, after which its importance it with value of n2 (adding is performed for module 2, there is a logical xor operation "exclusive or"), and then the blocks are changing places. this transformation is performed by a certain number of times ("rounds"): 16 or 32 depending on the regime of the algorithm. in each round, the two operations are performed.