... are all written out of personal interest and express my personal view - not that of my employer.
With passion for open source software and IT security I am writing some article here every now and then. I'm employed by Fox-IT, a leading IT security company based in Delft, The Netherlands. However, as stated above, none on the content on this site is to be related to my employer.
Nothing much more yet, will write something later.
Boring, I know...
Download my PGP/GnuPG key here: 0xA08C9903
BB0F CCD1 00FB 082F D67E FBF9 B90E 30CB A08C 9903
Import it to your keyring and verify it as follows:
gpg2 --import A08C9903.asc gpg2 --fingerprint email@example.com
If we meet in person and if you'll be able to prove your identity to me, I'm happy to sign each other's PGP key.
In case you prefer using Keybase.io, consider tracking me there.
For some purposes other than this blog, I like to keep certificates to my own PKI. Download the root certificate here (PEM format): Gert_van_Dijk_Root_CA_2016.crt.
My Root CA is RSA/2048 and the private part is stored securely on a smart card. I've published it here in case you run into my Root CA or in case you need it to access and validate any of the services you are accessing.
Verify with for example in OpenSSL:
openssl x509 -in Gert_van_Dijk_Root_CA_2016.crt -sha256 -fingerprint
Or verify it using my PGP key and the detached signature file in case you have verified my key. Download both the certificate and the detached signature and verify it:
gpg2 --verify Gert_van_Dijk_Root_CA_2016.crt.sig Gert_van_Dijk_Root_CA_2016.crt