I found a code in C used to break a DES encryption by means of a brute force attack (I will attach the link), but it is using a library that I can not find, I tried to search it on the webpage openssl and on their github repository, but I got lost.
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That's a source file, not a library. You would have to get the source code for OpenSSL and compile it. The file `des.c` will not work without the supporting code it expects — there's a lot of that. You might need a header; you'd have to look where the other OpenSSL headers are installed, and if that is `/opt/openssl/include/openssl/des.h` and you write `#include
`, then you'd need to compile with `-I/opt/openssl/include` as one of the command line options. – Jonathan Leffler Mar 05 '17 at 20:09 -
Thanks! I found the source file, followed the instructions and now everything works correctly! – User 1394 Mar 06 '17 at 18:54