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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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6
internal/crypto/crypto.go
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@ -30,8 +30,10 @@ const (
MasterSecretLengthMin = 16
// RNGLengthDefault is the number of bytes used for generating nonces.
RNGLengthDefault = 32
// HKDFInfoPrefix is the prefix used for the info parameter in HKDF.
HKDFInfoPrefix = "key-"
// DEKPrefix is the prefix used to prefix DEK IDs. Originally introduced as a requirement for the HKDF info parameter.
DEKPrefix = "key-"
// MeasurementSecretKeyID is name used for the measurementSecret DEK.
MeasurementSecretKeyID = "measurementSecret"
)
// DeriveKey derives a key from a secret.