dpkg-sig software package provides create and verify signatures on .deb-files, you can install in your Debian 7 (Wheezy) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install dpkg-sig
dpkg-sig is installed in your system.
Make ensure the dpkg-sig package were installed using the commands given below,
$ sudo dpkg-query -l | grep dpkg-sig *
You will get with dpkg-sig package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | Development |
| Package | dpkg-sig |
| Version | 0.13.1 |
| Description | create and verify signatures on .deb-files |
| Sub Section | devel |