debian-archive-keyring-udeb software package provides GnuPG keys of the Debian archive, 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 debian-archive-keyring-udeb
debian-archive-keyring-udeb is installed in your system.
Make ensure the debian-archive-keyring-udeb package were installed using the commands given below,
$ sudo dpkg-query -l | grep debian-archive-keyring-udeb *
You will get with debian-archive-keyring-udeb package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | debian-installer udeb packages |
| Package | debian-archive-keyring-udeb |
| Version | 2014.3~deb7u1 |
| Description | GnuPG keys of the Debian archive |
| Sub Section | Debian-installer |