Package: gnupg Version: 1.4.20-6 Severity: normal GnuPG defaults to returning short key IDs when listing keys. Short key IDs are quite vulnerable to collisions, and their use should be strongly discouraged.
I wrote the following with a progression of attacks; this is all well-known for years. http://gwolf.org/node/4070 So, in short: Please add "keyid-format 0xlong" to /usr/share/gnupg/options.skel Thanks, -- System Information: Debian Release: stretch/sid APT prefers unstable APT policy: (500, 'unstable') Architecture: amd64 (x86_64) Kernel: Linux 4.5.0-2-amd64 (SMP w/4 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages gnupg depends on: ii gpgv 1.4.20-6 ii libbz2-1.0 1.0.6-8 ii libc6 2.22-10 ii libreadline6 6.3-8+b4 ii libusb-0.1-4 2:0.1.12-30 ii zlib1g 1:1.2.8.dfsg-2+b1 Versions of packages gnupg recommends: ii gnupg-curl 1.4.20-6 ii libldap-2.4-2 2.4.42+dfsg-2+b2 Versions of packages gnupg suggests: pn gnupg-doc <none> ii imagemagick 8:6.8.9.9-7.1 ii libpcsclite1 1.8.17-1 ii parcimonie 0.10.1-1 -- no debconf information