I use kali linux os , I have a problem with libcrypto.so.1.0.0 library

/Bureau/PacketTracer62Student/bin$ ./PacketTracer6 
./PacketTracer6: error while loading shared libraries: libcrypto.so.1.0.0: cannot open shared object file: No such file or directory

someone can help me ?

You need to install libssl1.0.0:

sudo apt-get install libssl1.0.0

For future reference, you can install apt-file to find this out yourself:

sudo apt-get install apt-file
sudo apt-file update
apt-file search libcrypto.so.1.0.0

Using reinstall worked for me:

sudo apt-get install libssl1.0.0 libssl-dev --reinstall

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