aparler/RosettaCodeData
1
0
Fork 0
Code Issues 12 Pull requests 3 Projects Releases Packages Wiki Activity Actions

Sync

Browse source
This commit is contained in:
Ingy döt Net 2013-10-27 22:24:23 +00:00
parent 6f050a029e
commit 776bba907c
3887 changed files with 59894 additions and 7280 deletions
Download patch file Download diff file Expand all files Collapse all files

12
Task/Main-step-of-GOST-28147-89/JavaScript/main-step-of-gost-28147-89.js
View file

@ -1,3 +1,13 @@
var Таблица_замен = [
[ 4, 10, 9, 2, 13, 8, 0, 14, 6, 11, 1, 12, 7, 15, 5, 3],
[14, 11, 4, 12, 6, 13, 15, 10, 2, 3, 8, 1, 0, 7, 5, 9],
[ 5, 8, 1, 13, 10, 3, 4, 2, 14, 15, 12, 7, 6, 0, 9, 11],
[ 7, 13, 10, 1, 0, 8, 9, 15, 14, 4, 6, 12, 11, 2, 5, 3],
[ 6, 12, 7, 1, 5, 15, 13, 8, 4, 10, 9, 14, 0, 3, 11, 2],
[ 4, 11, 10, 0, 7, 2, 1, 13, 3, 6, 8, 5, 9, 12, 15, 14],
[13, 11, 4, 1, 3, 15, 5, 9, 0, 10, 14, 7, 6, 8, 2, 12],
[ 1, 15, 13, 0, 5, 7, 10, 4, 9, 2, 3, 14, 6, 11, 8, 12]];
function ОсновнойШаг(блок_текста, элемент_ключа) {
var N = блок_текста.slice(0);
var X = элемент_ключа;
@ -5,7 +15,7 @@ function ОсновнойШаг(блок_текста, элемент_ключа
var ячейка; var нов_S = 0;
for (var сч = 0; сч < 4; сч++) {
ячейка = (S >>> (сч << 3)) & 0xFF;
нов_S += (ТаблицаЗамен[сч*2][ячейка & 0x0F] + (ТаблицаЗамен[сч*2+1][ячейка >>> 4] << 4)) << (сч << 3);
нов_S += (Таблица_замен[сч*2][ячейка & 0x0F] + (Таблица_замен[сч*2+1][ячейка >>> 4] << 4)) << (сч << 3);
}
S = (((нов_S << 11) + (нов_S >>> 21)) & 0xFFFFFFFF) ^ N[1];
N[1] = N[0]; N[0] = S;