r/crypto

The 4th Annual FHE.org Conference is affiliated with Real World Crypto 2025 and will be held at the Grand Hotel Millennium Sofia in Sofia, Bulgaria March 25, 2025. The invited speaker is Craig Gentry, father of modern FHE. If you're interested in FHE research and development, don't miss it.

The Problem with the Advice: Don't Roll Your Own Crypto

One of my concerns with modern cryptography is that people are violating the sage advice "Don't Roll Your Own Crypto(graphy)\[sic\])". Machines are only getting smaller and sometimes such machines don't have the system resources to use off-the-shelf de facto crypto …

VeraId: Offline protocol to attribute content to domain names (using DNSSEC, X.509 and CMS)

Google's Tink crypto lib: EdDSA potentially exploitable implementation

Grover's Algorithm Against Password Hashing?

I am aware it is thought that modern password hashing algorithms are capable of being resistant to Grover's Algorithm. However, the truth is Grover's Algorithm still reduces the bit security of passwords effectively by half. If I use a password …

Zen and the Art of Microcode Hacking - Why to not use CMAC as a hash

AI Thinks It Cracked Kryptos. The Artist Behind It Says No Chance

ePrint: PEGASIS: Practical Effective Class Group Action using 4-Dimensional Isogenies

Learn how to break AES

Join us next week on Mar 13th at 3PM CEST for an FHE.org meetup with Agnes Leroy, GPU Director at Zama, who will be discussing Implementing FHE on GPUs. RSVP here!