A blueprint for formal verification of Apple corecrypto
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Apple's formal verification of corecrypto is deep technical content for security-minded engineers.
Apple open-sourced formal verification proofs for its post-quantum ML-KEM and ML-DSA implementations in corecrypto, the foundational cryptographic library running on 2.5 billion devices. The proofs mathematically verify correctness against FIPS 203/204 standards, covering iMessage, VPN, and TLS, and Apple released the verification tools to advance high-assurance cryptography.
Evaluate formal verification for your most security-sensitive code paths, starting with cryptographic libraries and authentication flows.
For a platform engineer, formal verification techniques can be applied to critical infrastructure components to prevent bugs that compromise security at scale, especially when deploying new cryptographic algorithms.
The introduction of quantum-secure cryptography in iMessage marked the start of a significant security transition to protect Apple users from threats posed by future quantum computers. Deploying this new generation of algorithms at scale across all Apple platforms requires high assurance, so we developed rigorous new formal verification methods to prove the mathematical correctness of our implementation. With this week’s release of corecrypto, we’re publishing our implementations of quantum-secure ML-KEM and ML-DSA algorithms — along with the mathematical proofs we built to assure they are…