BunnyLab 0 Posted December 9, 2020 Share Posted December 9, 2020 View File Easy CrackMe #1 Only simple algorithms - for one name one key. Provide a valid pair of name and serial, or write a keygen. Good luck. Submitter BunnyLab Submitted 12/09/2020 Category KeygenMe Link to post
Salin 0 Posted December 11, 2020 Share Posted December 11, 2020 (edited) Name:leet Serial:77fe1a9ac6d0e41b35c--- simple string hash + xor some stuff need constants to meet constraint of word count. keygen: Spoiler char buff[0x20], d[0x20]; memset(buff, 0x0, 0x20); cin >> buff; //simple hash char* c = buff; int r = 0; while (*c) { r += *c; c++; } //xor r ^= 0x7654; sprintf(buff, "%x", r); int i = 3; do { r = r << 2 | r >> 30; r ^= 0x7654; sprintf(d, "%x", r); strncat(buff, d, 5); i--; } while (i); buff[19] = 45; buff[20] = 45; buff[21] = 45; buff[22] = '\0'; cout << buff; Edited December 12, 2020 by Salin hide keygen code (see edit history) Link to post
BunnyLab 0 Posted December 11, 2020 Author Share Posted December 11, 2020 (edited) 9 hours ago, Salin said: Name:leet Serial:77fe1a9ac6d0e41b35c--- simple string hash + xor some stuff Right. simple string hash + xor + rol + xor + rol + xor + rol + xor Good job. This krackme for beginners. I'll make it harder - later Edited December 11, 2020 by BunnyLab (see edit history) Link to post
GioTiN 0 Posted December 12, 2020 Share Posted December 12, 2020 here is my keygen keygen.exe Link to post
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