JP Aumasson
@aumasson.jp
https://aumasson.jp
cofounder & CSO @ taurushq.com
cryptographer (BLAKE2, BLAKE3, SipHash)
author of Serious Cryptography https://nostarch.com/serious-cryptography-2nd-edition and other books
Signal: jpa.01
cofounder & CSO @ taurushq.com
cryptographer (BLAKE2, BLAKE3, SipHash)
author of Serious Cryptography https://nostarch.com/serious-cryptography-2nd-edition and other books
Signal: jpa.01
new blog post bfswa.substack.com/p/6-years-af...
6 years after too much crypto
Test of time passed
bfswa.substack.com
November 17, 2025 at 6:09 AM
new blog post bfswa.substack.com/p/6-years-af...
Started a Substack. Subscribe for more crypto investment advice.
bfswa.substack.com/p/quantum-co...
bfswa.substack.com/p/quantum-co...
Quantum computers will not steal your bitcoins, even if they can
The quantum gravity principle
bfswa.substack.com
November 13, 2025 at 8:27 AM
Started a Substack. Subscribe for more crypto investment advice.
bfswa.substack.com/p/quantum-co...
bfswa.substack.com/p/quantum-co...
Reposted by JP Aumasson
Stand with Condé Nast Union 🚨 We’re calling on you to sign our petition telling management to reinstate the Fired Four, reverse the suspensions, and end the union busting.
Sign here: actionnetwork.org/petitions/te...
Sign here: actionnetwork.org/petitions/te...
November 9, 2025 at 3:00 PM
Stand with Condé Nast Union 🚨 We’re calling on you to sign our petition telling management to reinstate the Fired Four, reverse the suspensions, and end the union busting.
Sign here: actionnetwork.org/petitions/te...
Sign here: actionnetwork.org/petitions/te...
Reposted by JP Aumasson
As Apple expands its bug bounty, I spoke with VP Ivan Krstić about the significance + recent big swings like Memory Integrity Enforcement. These steps protect all users, but particularly those targeted by spyware: “We feel a great moral obligation to defend those users” www.wired.com/story/apple-...
Apple Announces $2 Million Bug Bounty Reward for the Most Dangerous Exploits
With the mercenary spyware industry booming, Apple VP Ivan Krstić tells WIRED that the company is also offering bonuses that could bring the max total reward for iPhone exploits to $5 million.
www.wired.com
October 10, 2025 at 1:06 PM
As Apple expands its bug bounty, I spoke with VP Ivan Krstić about the significance + recent big swings like Memory Integrity Enforcement. These steps protect all users, but particularly those targeted by spyware: “We feel a great moral obligation to defend those users” www.wired.com/story/apple-...
Reposted by JP Aumasson
We've built ML-DSA-B, ML-DSA powered by BLAKE3 instead of SHAKE.
Up to 20% faster signing, 30% faster verification, 60x pre-hash.
Code & details: github.com/PQC-Suite-B
With @zooko.bsky.social @aumasson.jp @conordeegan.bsky.social from Project Eleven
Up to 20% faster signing, 30% faster verification, 60x pre-hash.
Code & details: github.com/PQC-Suite-B
With @zooko.bsky.social @aumasson.jp @conordeegan.bsky.social from Project Eleven
October 9, 2025 at 2:17 PM
We've built ML-DSA-B, ML-DSA powered by BLAKE3 instead of SHAKE.
Up to 20% faster signing, 30% faster verification, 60x pre-hash.
Code & details: github.com/PQC-Suite-B
With @zooko.bsky.social @aumasson.jp @conordeegan.bsky.social from Project Eleven
Up to 20% faster signing, 30% faster verification, 60x pre-hash.
Code & details: github.com/PQC-Suite-B
With @zooko.bsky.social @aumasson.jp @conordeegan.bsky.social from Project Eleven
Thanks to the American University of Beirut for inviting me to talk about about quantum. Amazing audience, never had that many question. Even bigger thanks to @nadim.computer for making this happen and showing me great places in Lebanon.
Slides: www.aumasson.jp/data/talks/A....
Slides: www.aumasson.jp/data/talks/A....
September 24, 2025 at 8:14 AM
Thanks to the American University of Beirut for inviting me to talk about about quantum. Amazing audience, never had that many question. Even bigger thanks to @nadim.computer for making this happen and showing me great places in Lebanon.
Slides: www.aumasson.jp/data/talks/A....
Slides: www.aumasson.jp/data/talks/A....
Reposted by JP Aumasson
as you cancel disney subscriptions, please remember to support your favorite independent media. there are amazing people doing critical work with very little support, and things are only getting harder.
here are some of my favorites: www.citationneeded.news/friends/. feel free to post yours below!
here are some of my favorites: www.citationneeded.news/friends/. feel free to post yours below!
Friends of the blog
Citation Needed is part of a loose collective of independent publications that share a commitment to thoughtful, critical reporting. I encourage you to check them out, and consider supporting their wo...
www.citationneeded.news
September 18, 2025 at 1:36 AM
as you cancel disney subscriptions, please remember to support your favorite independent media. there are amazing people doing critical work with very little support, and things are only getting harder.
here are some of my favorites: www.citationneeded.news/friends/. feel free to post yours below!
here are some of my favorites: www.citationneeded.news/friends/. feel free to post yours below!
Reposted by JP Aumasson
The impact of Alfred Menezes in cryptography is profound. Francisco RH and I are organizing an afternoon session in Latincrypt to celebrate Alfred's career:
menezesfest.info
If you're coming to Medellín, consider attending!
menezesfest.info
If you're coming to Medellín, consider attending!
MenezesFest 2025
MenezesFest brings together researchers, colleagues, and friends to celebrate the career and impact of Alfred Menezes.
menezesfest.info
September 18, 2025 at 6:17 AM
The impact of Alfred Menezes in cryptography is profound. Francisco RH and I are organizing an afternoon session in Latincrypt to celebrate Alfred's career:
menezesfest.info
If you're coming to Medellín, consider attending!
menezesfest.info
If you're coming to Medellín, consider attending!
Stablecoin www.aumasson.jp/hoax/zerosta...
September 6, 2025 at 11:36 AM
Stablecoin www.aumasson.jp/hoax/zerosta...
September 6, 2025 at 11:35 AM
Reposted by JP Aumasson
"Cryptography makes everything a key management problem" is actually a profoundly optimistic statement.
May 20, 2025 at 12:05 AM
"Cryptography makes everything a key management problem" is actually a profoundly optimistic statement.
Reposted by JP Aumasson
It’s time to reveal the ZK Whiteboard S3 Module 1... because it's LIVE!
🥁🥁🥁🥁
How to Build Hash Functions, with Jean-Philippe (JP) Aumasson @aumasson.jp & @nicomnbl.bsky.social
Watch the full module here: zkhack.dev/whiteboard/s...
🥁🥁🥁🥁
How to Build Hash Functions, with Jean-Philippe (JP) Aumasson @aumasson.jp & @nicomnbl.bsky.social
Watch the full module here: zkhack.dev/whiteboard/s...
September 3, 2025 at 8:08 AM
It’s time to reveal the ZK Whiteboard S3 Module 1... because it's LIVE!
🥁🥁🥁🥁
How to Build Hash Functions, with Jean-Philippe (JP) Aumasson @aumasson.jp & @nicomnbl.bsky.social
Watch the full module here: zkhack.dev/whiteboard/s...
🥁🥁🥁🥁
How to Build Hash Functions, with Jean-Philippe (JP) Aumasson @aumasson.jp & @nicomnbl.bsky.social
Watch the full module here: zkhack.dev/whiteboard/s...
Reposted by JP Aumasson
www.lepoint.fr/high-tech-in...
but, heh, 300 push-ups
but, heh, 300 push-ups
June 19, 2025 at 3:54 PM
www.lepoint.fr/high-tech-in...
but, heh, 300 push-ups
but, heh, 300 push-ups
Reposted by JP Aumasson
🆕⚛️🔐 Starting with iOS 26, CryptoKit gets support for quantum-secure cryptography with algorithms such as ML-KEM, ML-DSA and HPKE with X-Wing:
developer.apple.com/documentatio...
developer.apple.com/documentatio...
Apple CryptoKit | Apple Developer Documentation
Perform cryptographic operations securely and efficiently.
developer.apple.com
June 9, 2025 at 7:29 PM
🆕⚛️🔐 Starting with iOS 26, CryptoKit gets support for quantum-secure cryptography with algorithms such as ML-KEM, ML-DSA and HPKE with X-Wing:
developer.apple.com/documentatio...
developer.apple.com/documentatio...
Reposted by JP Aumasson
I wrote a bit more about X’s new encrypted DMs and the Juicebox protocol. blog.cryptographyengineering.com/2025/06/09/a...
A bit more on Twitter/X’s new encrypted messaging
Matthew Garrett has a nice post about Twitter (uh, X)’s new end-to-end encryption messaging protocol, which is now called XChat. The TL;DR of Matthew’s post is that from a cryptographic…
blog.cryptographyengineering.com
June 9, 2025 at 6:46 PM
I wrote a bit more about X’s new encrypted DMs and the Juicebox protocol. blog.cryptographyengineering.com/2025/06/09/a...
what's your favorite FIPS 140-3 L2+ HSM?
June 8, 2025 at 6:03 AM
what's your favorite FIPS 140-3 L2+ HSM?
Reposted by JP Aumasson
One of the best things about Posting is you never know what obscure preoccupations your followers have. There will be a guy who has followed you for years and never said anything but then one day you disparage applesauce and he activates like a sleeper agent and dedicates his life to destroying you
June 7, 2025 at 1:17 AM
One of the best things about Posting is you never know what obscure preoccupations your followers have. There will be a guy who has followed you for years and never said anything but then one day you disparage applesauce and he activates like a sleeper agent and dedicates his life to destroying you
Reposted by JP Aumasson
TIL: microSD Express uses PCI Express, and is basically a miniature NVMe SSD in a microSD form factor. Up to 1GB/s speeds. This is really cool tech!
June 7, 2025 at 10:02 AM
TIL: microSD Express uses PCI Express, and is basically a miniature NVMe SSD in a microSD form factor. Up to 1GB/s speeds. This is really cool tech!
I missed that: South Korea standardized AIMer, a MPC-in-the-head signature scheme
pqshield.com/south-korea-...
kpqc.cryptolab.co.kr
www.kpqc.or.kr/images/pdf/A...
pqshield.com/south-korea-...
kpqc.cryptolab.co.kr
www.kpqc.or.kr/images/pdf/A...
South Korea announces winners of KpqC competition | PQShield
This month, South Korea selected its final four algorithms as part of the Korean Post-Quantum Cryptography (KpqC) competition. The competition, running This month, South Korea selected its final four ...
pqshield.com
June 8, 2025 at 5:43 AM
I missed that: South Korea standardized AIMer, a MPC-in-the-head signature scheme
pqshield.com/south-korea-...
kpqc.cryptolab.co.kr
www.kpqc.or.kr/images/pdf/A...
pqshield.com/south-korea-...
kpqc.cryptolab.co.kr
www.kpqc.or.kr/images/pdf/A...
Trump updated the PQC EO:
www.whitehouse.gov/presidential...
www.whitehouse.gov/presidential...
June 7, 2025 at 6:41 PM
Trump updated the PQC EO:
www.whitehouse.gov/presidential...
www.whitehouse.gov/presidential...
My short story collection 𝐆𝐥𝐢𝐭𝐜𝐡𝐞𝐬 is now available as free EPUB/PDF, and still on Kindle, Apple, etc. Readers said it echoes Borges, Murakami (never read them), and DeLillo (never liked him). You judge. The last story pays homage to David Lynch.
www.aumasson.jp/glitches/ind...
www.aumasson.jp/glitches/ind...
Glitches by Jean-Philippe Aumasson
Three short stories from the edges of reality by cryptography expert Jean-Philippe Aumasson.
www.aumasson.jp
June 7, 2025 at 8:32 AM
My short story collection 𝐆𝐥𝐢𝐭𝐜𝐡𝐞𝐬 is now available as free EPUB/PDF, and still on Kindle, Apple, etc. Readers said it echoes Borges, Murakami (never read them), and DeLillo (never liked him). You judge. The last story pays homage to David Lynch.
www.aumasson.jp/glitches/ind...
www.aumasson.jp/glitches/ind...