Apple CPUs have a flaw that makes key extraction possible
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TLDR; this may also affect Metamask and other crypto wallets. So Mac users might want to consider Trezor or other hardware wallet. GoFetch is a microarchitectural side-channel attack that can extract secret keys from constant-time cryptographic implementations via data memory-dependent prefetchers (DMPs). We show that DMPs are present in many Apple CPUs and pose a real threat to multiple cryptographic implementations, allowing us to extract keys from OpenSSL Diffie-Hellman, Go RSA, as well as CRYSTALS Kyber and Dilithium. [link][comments] |
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