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405db3286e
* There are now two attestation packages on azure. The issuer on the server side is created base on successfully querying the idkeydigest from the TPM. Fallback on err: Trusted Launch. * The bootstrapper's issuer choice is validated by the CLI's validator, which is created based on the local config. * Add "azureCVM" field to new "internal-config" cm. This field is populated by the bootstrapper. * Group attestation OIDs by CSP (#42) * Bootstrapper now uses IssuerWrapper type to pass the issuer (and some context info) to the initserver. * Introduce VMType package akin to cloudprovider. Used by IssuerWrapper. * Extend unittests. * Remove CSP specific attestation integration tests Co-authored-by: <dw@edgeless.systems> Signed-off-by: Otto Bittner <cobittner@posteo.net>
50 lines
1.1 KiB
Go
50 lines
1.1 KiB
Go
/*
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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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package trustedlaunch
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import (
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"crypto"
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"github.com/edgelesssys/constellation/internal/attestation/vtpm"
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"github.com/edgelesssys/constellation/internal/oid"
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"github.com/google/go-tpm/tpm2"
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)
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// Validator for Azure trusted launch VM attestation.
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type Validator struct {
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oid.AzureTrustedLaunch
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*vtpm.Validator
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}
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// NewValidator initializes a new Azure validator with the provided PCR values.
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func NewValidator(pcrs map[uint32][]byte, enforcedPCRs []uint32, log vtpm.WarnLogger) *Validator {
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return &Validator{
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Validator: vtpm.NewValidator(
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pcrs,
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enforcedPCRs,
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trustedKey,
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validateVM,
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vtpm.VerifyPKCS1v15,
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log,
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),
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}
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}
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// trustedKey returns the key encoded in the given TPMT_PUBLIC message.
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func trustedKey(akPub, instanceInfo []byte) (crypto.PublicKey, error) {
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pubArea, err := tpm2.DecodePublic(akPub)
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if err != nil {
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return nil, err
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}
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return pubArea.Key()
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}
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// validateVM returns nil.
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func validateVM(attestation vtpm.AttestationDocument) error {
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return nil
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}
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