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prt
October 1st, 2003, 05:28
how to brute force DES 40bit cipher text?
mike
October 1st, 2003, 22:33
Quote:
[Originally Posted by prt]how to brute force DES 40bit cipher text?

Code:


__int64 key,keymax=1;

keymax<<=40;

for (key=0; key<keymax; ++keymax)

   if (!memcmp(DESdecrypt(message, key),knownplaintext,messagelen))

      break;

print(key);