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Filters: Author is Campagna, Matthew  [Clear All Filters]
2020-01-27
Almeida, José Bacelar, Barbosa, Manuel, Barthe, Gilles, Campagna, Matthew, Cohen, Ernie, Grégoire, Benjamin, Pereira, Vitor, Portela, Bernardo, Strub, Pierre-Yves, Tasiran, Serdar.  2019.  A Machine-Checked Proof of Security for AWS Key Management Service. Proceedings of the 2019 ACM SIGSAC Conference on Computer and Communications Security. :63–78.

We present a machine-checked proof of security for the domain management protocol of Amazon Web Services' KMS (Key Management Service) a critical security service used throughout AWS and by AWS customers. Domain management is at the core of AWS KMS; it governs the top-level keys that anchor the security of encryption services at AWS. We show that the protocol securely implements an ideal distributed encryption mechanism under standard cryptographic assumptions. The proof is machine-checked in the EasyCrypt proof assistant and is the largest EasyCrypt development to date.