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@stf@chaos.social
2026-01-06 13:05:38

#Applied #cryptography cannot solve a #security problem. It can only convert a security problem into a key-management problem.
Corollary: If you aren’t actually solving the key-management problem, yo…

Decorative Cryptography
All encryption is end-to-end, if you’re not picky about the ends. config TCG_TPM2_HMAC bool "Use HMAC and encrypted transactions on the TPM bus" default n select CRYPTO_ECDH select CRYPTO_LIB_AESCFB select CRYPTO_LIB_SHA256 select CRYPTO_LIB_UTILS help Setting this causes us to deploy a scheme which uses request and response HMACs in addition to encryption for communicating with the TPM to prevent or detect bus snooping and interposer attacks (see tpm-security.rst). Saying Y here adds some en…