Created
May 15, 2013 14:36
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New hash algorithm (written in PAWN)
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/* | |
Функция для получения хеш-суммы строки | |
B_Hash(source[], dest[], bool:lowcase = true); | |
Аргументы: | |
source[] - строка, хеш-сумму которой нужно получить | |
dest[] - строка, куда будет помещена хеш-сумма (96 символов) | |
bool:lowcase (true/false) - если true, вывод - в нижнем регистре, иначе - в верхнем | |
Возвращает: | |
0 - Неудача | |
1 - Успех | |
*/ | |
stock B_Hash(source[], dest[], bool:lowcase = true, dest_size = sizeof(dest)) | |
{ | |
if(dest_size < 96) return 0; | |
dest[0] = 0; | |
new iter, table_iter, len = strlen(source); | |
new table[32] = | |
{ | |
0xF3C, 0xA1B, 0x84C, 0x7A0, | |
0x31A, 0x8C1, 0xDD7, 0xFF6, | |
0x371, 0x20C, 0xCC4, 0xD8C, | |
0x7FF, 0x531, 0x6C9, 0xF48, | |
0xBA8, 0x4F1, 0x3C3, 0x519, | |
0x1CB, 0x6AA, 0x4F0, 0xC02, | |
0x1A1, 0x911, 0xE9E, 0x565, | |
0xDCC, 0x5FE, 0x113, 0x3EE | |
}; | |
if(!len) goto NULL; | |
while(table_iter != 32) | |
{ | |
iter = 0; | |
for( ; source[iter] != 0x0; iter++) | |
{ | |
source[iter] += ((source[iter] + (iter << 16)) >>> 21); | |
table[table_iter] += (iter - ((((source[iter] % 262144) + ((source[iter] << 1) - (iter % 256))) >>> 24) - ((len << 1) + ((source[iter] - len) % (65535 + iter)) + (len - (34 + iter))))); | |
table[table_iter] ^= (((source[iter] >>> 1) + (table_iter - len)) << 1); | |
table[table_iter] >>>= 1; | |
table[table_iter] ^= ((source[iter] << 2) - 32); | |
table[table_iter] -= ((table_iter + 347) - iter); | |
source[iter] += ((table_iter + len) << 2); | |
} | |
table[table_iter++] &= 0xFFF; | |
} | |
NULL: | |
source[0] = 0; | |
iter = 0; | |
table_iter = 31; | |
format(dest,dest_size,"%03x",table[table_iter--]); | |
while(iter++ != 31) | |
{ | |
format(dest,dest_size,"%s%03x",dest,table[table_iter--]); | |
} | |
if(lowcase) | |
{ | |
for(iter = 0; dest[iter] != 0x0; iter++) | |
{ | |
dest[iter] |= 0x20; | |
} | |
} | |
return 1; | |
} |
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