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Refactor init/recovery to use kms URI

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So far the masterSecret was sent to the initial bootstrapper
on init/recovery. With this commit this information is encoded
in the kmsURI that is sent during init.
For recover, the communication with the recoveryserver is
changed. Before a streaming gRPC call was used to
exchanges UUID for measurementSecret and state disk key.
Now a standard gRPC is made that includes the same kmsURI &
storageURI that are sent during init.
This commit is contained in:
Otto Bittner 2023-01-16 11:19:03 +01:00
parent 0e71322e2e
commit 9a1f52e94e
35 changed files with 466 additions and 623 deletions
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7
internal/attestation/attestation.go
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@ -20,10 +20,5 @@ const (
// DeriveClusterID derives the cluster ID from a salt and secret value.
func DeriveClusterID(secret, salt []byte) ([]byte, error) {
return crypto.DeriveKey(secret, salt, []byte(crypto.HKDFInfoPrefix+clusterIDContext), crypto.DerivedKeyLengthDefault)
}
// DeriveMeasurementSecret derives the secret value needed to derive ClusterID.
func DeriveMeasurementSecret(masterSecret, salt []byte) ([]byte, error) {
return crypto.DeriveKey(masterSecret, salt, []byte(crypto.HKDFInfoPrefix+MeasurementSecretContext), crypto.DerivedKeyLengthDefault)
return crypto.DeriveKey(secret, salt, []byte(crypto.DEKPrefix+clusterIDContext), crypto.DerivedKeyLengthDefault)
}