A cryptographer and mathematician known in part for a lawsuit over cryptography export controls.
Glossary Terms
David Chaum
A cryptographer associated with anonymous communication, digital cash and blind signatures.
DES
An older symmetric encryption standard that became central to debates about government influence on cryptography.
Diffie-Hellman key exchange
A method that lets two parties agree on a shared secret over an insecure channel.
dig
A command-line tool for querying DNS.
DNS cache
Temporarily stored DNS answers so they do not have to be requested again each time.
DNS lookup
A query where a computer asks DNS for information about a domain.
DNS exfiltration
Moving data out of a system using DNS queries or responses.
DNS over HTTPS
A way to send DNS queries over encrypted HTTPS connections.
DNS over TLS
A way to send DNS queries over encrypted TLS connections.
