Writing
Notes on stuff I am interested in.
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.
Attested key provisioning on Kubernetes
June 2026
Securely injecting database secrets into CloudNativePG pods with AMD SEV-SNP remote attestation on AKS.
The Cramer–Shoup cryptosystem
March 2026
Notes on the Cramer–Shoup encryption scheme and how it reaches IND-CCA2 security under the DDH assumption.
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.