libcrypt-smime-perl software package provides S/MIME message signing, verification, encryption and decryption module, you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libcrypt-smime-perl
libcrypt-smime-perl is installed in your system.
Make ensure the libcrypt-smime-perl package were installed using the commands given below,
$ sudo dpkg-query -l | grep libcrypt-smime-perl *
You will get with libcrypt-smime-perl package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Perl |
| Package | libcrypt-smime-perl |
| Version | 0.15-1+b1 [amd64, armel, armhf |
| Description | S/MIME message signing, verification, encryption and decryption module |
| Sub Section | Perl |