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31 lines
1.0 KiB
Go
31 lines
1.0 KiB
Go
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/*
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Copyright (c) Edgeless Systems GmbH
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SPDX-License-Identifier: AGPL-3.0-only
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*/
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/*
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# Amazon Web Services attestation
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Attestation for AWS using [NitroTPM].
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AWS currently does not support confidential VMs, but offers a TPM 2.0 compliant vTPM integration.
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We use this to enable a TPM based measured boot Constellation deployment.
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# Issuer
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The TPM attestation is signed by the NitroTPM's RSA attestation key.
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Additionally to the TPM attestation, we attach a node's [instance identity document] to the attestation document.
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# Validator
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Currently, the NitroTPM provides no endorsement certificate for its attestation key, nor does AWS offer a secondary of of verifying it.
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For now we have to blindly trust the key.
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Additionally to verifying the TPM attestation, we also check the instance identity document for consistency.
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[NitroTPM]: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/nitrotpm.html
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[instance identity document]: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instance-identity-documents.html
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*/
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package aws
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