bruteforce-salted-openssl software package provides try to find the passphrase for files encrypted with OpenSSL, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install bruteforce-salted-openssl
bruteforce-salted-openssl is installed in your system.
Make ensure the bruteforce-salted-openssl package were installed using the commands given below,
$ sudo dpkg-query -l | grep bruteforce-salted-openssl *
You will get with bruteforce-salted-openssl package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Utilities |
| Package | bruteforce-salted-openssl |
| Version | 1.3.2-2 |
| Description | try to find the passphrase for files encrypted with OpenSSL |
| Sub Section | Utils |