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Writing

Notes on stuff I am interested in.

  1. Entropy sources in confidential cloud environments

    September 2026

    Whether RDRAND and RDSEED can be trusted as entropy sources inside Intel TDX and AMD SEV-SNP guests, revisiting the BSI 2016 assessment.

  2. Attested key provisioning on Kubernetes

    June 2026

    Securely injecting database secrets into CloudNativePG pods with AMD SEV-SNP remote attestation on AKS.

  3. The Cramer–Shoup cryptosystem

    March 2026

    Notes on the Cramer–Shoup encryption scheme and how it reaches IND-CCA2 security under the DDH assumption.

  4. The TEE.fail attack

    February 2026

    Notes and a critical review of TEE.fail, which extracts attestation keys from confidential computing platforms by listening in on DDR5 memory.

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