[Secure-testing-team] Bug#855970: [debian-archive-keyring] The release repository of testing (Stretch), and security updates repository too, have three misiing public keys

[Łukasz Konieczny]

Package: debian-archive-keyring
Version: 2014.3
Severity: serious
Tags: security
X-Debbugs-CC: secure-testing-team at lists.alioth.debian.org

--- Please enter the report below this line. ---
The release repository of testing (Stretch), and security updates 
repository too, have three misiing public keys. Terminal output of 
apt-get update is attached to this mail. Some text is in Polish language.

--- System information. ---
Architecture:
Kernel: Linux 4.9.0-1-amd64

Debian Release: 9.0
500 testing ftp.pl.debian.org

--- Package information. ---
Depends (Version) | Installed
======================-+-===========
gpgv | 2.1.18-3


Recommends (Version) | Installed
=========================-+-===========
gnupg | 2.1.18-3


Package's Suggests field is empty.
-------------- next part --------------
root at BlackMachine:Pobrane# apt-get update
Pobieranie:1 http://ftp.pl.debian.org/debian stretch InRelease [184 kB]
Pobieranie:2 http://security.debian.org/debian-security stretch/updates InRelease [62,9 kB]
Ign:1 http://ftp.pl.debian.org/debian stretch InRelease           
Ign:2 http://security.debian.org/debian-security stretch/updates InRelease
Pobrano 247 kB w 0s (325 kB/s)
Czytanie list pakietów... Gotowe
W: Błąd GPG: http://ftp.pl.debian.org/debian stretch InRelease: Następujące podpisy nie mogły zostać zweryfikowane z powodu braku klucza publicznego: NO_PUBKEY 8B48AD6246925553 NO_PUBKEY 7638D0442B90D010
W: The repository 'http://ftp.pl.debian.org/debian stretch InRelease' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: Błąd GPG: http://security.debian.org/debian-security stretch/updates InRelease: Następujące podpisy nie mogły zostać zweryfikowane z powodu braku klucza publicznego: NO_PUBKEY 9D6D8F6BC857C906 NO_PUBKEY 8B48AD6246925553
W: The repository 'http://security.debian.org/debian-security stretch/updates InRelease' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
root at BlackMachine:Pobrane#