Apple today published new corecrypto source code on GitHub, alongside a detailed technical post explaining the intricate work behind its post-quantum cryptography efforts across iPhone, Mac, and more. Here are the details.
Apple continues its post-quantum security work
Earlier today, Apple published a new corecrypto repository on GitHub as part of a broader update to its post-quantum cryptography work, which started rolling out publicly in 2024 with iMessage’s PQ3 protocol.
Announced with iOS 17.4, PQ3 was Apple’s first major public step toward protecting users against future quantum computers, with iMessage adding post-quantum protection both when a conversation starts and as encryption keys are refreshed over time.
Today’s announcement continues that work, with the GitHub repository including source code for corecrypto, the low-level cryptographic library used by Apple’s Security framework, CryptoKit, and CommonCrypto to power encryption, hashing, random number generation, and digital signatures.
