GPG
If you need to confirm something really came from me, encrypt a message meant for my eyes only, or otherwise prove you’re talking to the right person, my GnuPG public key is published at gpg.l3x.in.
Use it to verify signed messages or send me encrypted email:
curl https://gpg.l3x.in/ | gpg --import
References
A few links if you’re new to GPG:
Warning
Always verify the fingerprint through a separate, trusted channel if authenticity is critical. You can contact me to confirm a fingerprint out-of-band.