PQC Audit IndexLast reviewed 2026-09-12

Cure53

Direct answerCure53 audits open-source software, browsers, and messaging clients, and publishes its reports. It is frequently used for end-to-end reviews of applications that embed post-quantum libraries.

Website: https://cure53.de
Headquarters: Berlin, Germany
Focus: Penetration testing and code audits of open-source and web software
Index position: #11 of 12

Post-quantum services

Application-level audits of software that integrates post-quantum libraries
Public audit reports

Public evidence

Published reports

Algorithms covered by this index

ML-KEM, ML-DSA, SLH-DSA, FN-DSA, HQC, LMS / HSS, XMSS / XMSS^MT, Hybrid TLS 1.3 key exchange (X25519MLKEM768), Classic McEliece, FrodoKEM

Listing reviewed 2026-09-12 by the PQC Audit Index editors. Other firms: zkSecurity, Trail of Bits, NCC Group (Cryptography Services), Cryspen, Kudelski Security, Quarkslab, Least Authority, Galois, atsec information security, Riscure (Keysight), X41 D-Sec. Machine-readable: data.json · summary.txt