Do AWS Services cache Data Encryption Keys serve by AWS KMS? For how long?

Post Quantum Cryptography

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Do AWS Services cache Data Encryption Keys serve by AWS KMS? For how long?

Fortanix has no control over KMS or the services that use it, and no insight into how long those services keep the keys that they are served.

While we have observed that some services do cache their keys for a short time, Fortanix has no control over this behavior.

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AWS External Key Store

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