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Cloud Computing · Advanced

Confidential Computing

Protection of data in use by performing computation in hardware-based, attested trusted execution environments.

Definition

Confidential computing encrypts memory and isolates workloads from the host OS, hypervisor and cloud operator using technologies such as AMD SEV-SNP, Intel TDX and Intel SGX, and AWS Nitro Enclaves. Cloud offerings include Azure confidential VMs, Google Cloud Confidential VMs and confidential GPU instances, with remote attestation proving the environment's integrity.

Example

A healthcare consortium jointly analyzes patient data inside confidential VMs so no participant or the provider can see others' raw data.

Exam tip

Encryption at rest and in transit are common; confidential computing is the answer for protecting data in use.

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