Author

Tony Finch

Tony Finch works on Unix networking software in Cambridge, England. He has contributed to open source projects including BIND9, Knot DNS, Git, Exim, Linux, FreeBSD, and Apache httpd, and to standards development in the IETF.

https://dotat.at/

The OSI Deprogrammer

By Tony Finch on 20 Jun 2024

Guest Post: OSI is basically unavoidable, even though it’s deeply unsuitable.

SHA-1 chosen prefix collisions and DNSSEC

By Tony Finch on 17 Jan 2020

Guest Post: The SHAmbles prefix collision attack against SHA-1 offers a new way for attackers to spook the DNS despite DNSSEC.