Security Cryptography Whatever

Live from Amsterdam, it's cancellable crypto hot takes! A fun little meme, plus a preview of the Real World Crypto program! Transcript : https://securitycryptographywhatever.com/2022/04/12/cancellable-crypto-takes-and-real-world-crypto/ Links: Tony's twete: https://twitter.com/bascule/status/1512539700220805124 Real World Crypto 2022: https://rwc.iacr.org/2022 Merch! https://merch.scwpod...

We're back! With an episode on lattice-based cryptography, with Professor Chris Peikert of the University of Michigan, David's alma mater. When we recorded this, Michigan football had just beaten Ohio for the first time in a bajillion years, so you get a nerdy coda on college football this time! Transcript: https://securitycryptographywhatever.com/2022/03/12/lattices-and-michigan-footbal...

We've trashed JWTs, discussed PASETO, Macaroons, and now, Biscuits! Actually, multiple iterations of Biscuits! Pairings and gamma signatures and Datalog, oh my! 🍪 Transcript: https://securitycryptographywhatever.com/2022/01/29/biscuits-with-geoffroy-couprie/ Links: Biscuits V2 : https://www.biscuitsec.org Experiments iterating on  Biscuits: https://github.com/biscuit-auth/biscuit/tree/master...

“Can I Tailscale my Chromecast?” You love Tailscale, I love Tailscale, we loved talking to Avery Pennarun and Brad Fitzpatrick from Tailscale about, I dunno, Go generics. Oh, and TAILSCALE! And DNS. And WASM. Transcript: https://securitycryptographywhatever.com/2022/01/15/tailscale-with-avery-pennarun-brad-fitzpatrick/ People: Avery Pennarun (@apenwarr) Brad Fitzpatrick (@bradfitz) Deirdre Connoll...

We recorded this months ago, and now it's finally up!   Colm MacCárthaigh joined us to chat about all things TLS, S2N , MTLS, SSH, fuzzing, formal verification, implementing state machines, and of course, DNSSEC. Transcript: https://securitycryptographywhatever.com/2021/12/29/the-feeling-s-mutual-mtls-with-colm-maccarthaigh/ Find us at: https://twitter.com/scwpod https://twitter.com/durumcrus...

Happy New Year! Feliz Navidad! Merry Yule! Happy Hannukah! Pour one out for the log4j incident responders! We did a call-in episode on Twitter Spaces and recorded it, so that's why the audio sounds different. We talked about BLOCKCHAIN/Web3 (blech), testing, post-quantum crypto, client certificates, ssh client certificates, threshold cryptography, U2F/WebAuthn, car fob attacks, geese, and mor...

Hey, a new episode! We had a fantastic conversation with Jason Donenfeld, creator of our favorite modern VPN protocol: WireGuard! We touched on kernel hacking, formal verification, post-quantum cryptography, developing with disassemblers, and more! Transcript: https://securitycryptographywhatever.com/2021/12/05/wireguard-with-jason-donenfeld/ Links:  WireGuard: https://www.wireguard.com Tamarin :...

A conversation that started with PAKEs (password-authenticated key exchanges) and touched on some cool math things: PRFs, finite fields, elliptic curve groups, anonymity protocols, hashing to curve groups, prime order groups, and more. With special guest, George Tankersley! Transcript: https://securitycryptographywhatever.com/2021/10/26/pakes-oprfs-algebra-with-george-tankersley/ Links:  SRP depre...

A lot of fixes got pushed in the past week! Please apply your updates! Apple, Chrome, Matrix, Azure, and more nonsense. Transcript: https://securitycryptographywhatever.com/2021/09/20/patch-damnit/ Find us at: https://twitter.com/scwpod https://twitter.com/durumcrustulum https://twitter.com/tqbf https://twitter.com/davidcadrian Links! The accuvant story in MIT Technology Review All the Apple platf...

Not the hero the internet deserves, but the one we need: it's Ryan Sleevi! We get into the weeds on becoming a certificate authority, auditing said authorities, DNSSEC, DANE, taking over country code top level domains, Luxembourg, X.509, ASN.1, CBOR, more JSON (!), ACME, Let's Encrypt, and more, on this extra lorge episode with the web PKI's Batman. Transcript: https://securitycrypt...

We're talking about Apple's new proposed client-side CSAM detection system . We weren't sure if we were going to cover this, and then we realized that not all of us have been paying super close attention to what the hell this thing is, and have a lot of questions about it. So we're talking about it, with our special guest Professor Matthew Green. We cover how Apple's syste...

We did not run out of things to talk about: Chrome vs. Safari vs. Firefox. Rust vs. C++. Bug bounties vs. exploit development. The Peace Corps vs. The Marine Corps. Transcript: https://securitycryptographywhatever.com/2021/08/21/platform-security-part-deux-with-justin-schuh/ Find us at: https://twitter.com/scwpod https://twitter.com/durumcrustulum https://twitter.com/tqbf https://twitter.com/david...

🔥JWT🔥 We talk about all sorts of tokens: JWT, PASETO, Protobuf Tokens, Macaroons, and Biscuits. With the great Jonathan Rudenberg! After we recorded this, Thomas went deep on tokens even beyond what we talked about here: https://fly.io/blog/api-tokens-a-tedious-survey/ Transcript: https://securitycryptographywhatever.com/2021/08/12/what-do-we-do-about-jwt-with-jonathan-rudenberg/ Find us at: htt...

Special guest Filippo Valsorda joins us to debate with Thomas on whether one should or should not "roll your own crypto", and how to produce better cryptography in general. After we recorded this, David went even deeper  on 'rolling your own crypto' in a blog post here: https://dadrian.io/blog/posts/roll-your-own-crypto/ Transcript: https://securitycryptographywhatever.com/2021...

Deirdre, Thomas and David talk about NSO group, Pegasus,  whether iOS a burning trash fire, the zero-day market, and whether rewriting all of iOS in Swift is a viable strategy for reducing all these vulns. Transcript: https://securitycryptographywhatever.com/2021/07/26/nso-group-pegasus-zero-days-i-os-message-security/ Find us at: https://twitter.com/durumcrustulum https://twitter.com/tqbf https:/...