constellation/coordinator/attestation/gcp/gcp_test.go

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//go:build gcp
// +build gcp
package gcp
import (
"encoding/json"
"testing"
"github.com/edgelesssys/constellation/coordinator/attestation/vtpm"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestAttestation(t *testing.T) {
assert := assert.New(t)
require := require.New(t)
issuer := NewIssuer()
validator := NewValidator(map[uint32][]byte{0: PCR0})
nonce := []byte{2, 3, 4}
challenge := []byte("Constellation")
attDocRaw, err := issuer.Issue(challenge, nonce)
assert.NoError(err)
var attDoc vtpm.AttestationDocument
err = json.Unmarshal(attDocRaw, &attDoc)
require.NoError(err)
assert.Equal(challenge, attDoc.UserData)
originalPCR := attDoc.Attestation.Quotes[1].Pcrs.Pcrs[uint32(vtpm.PCRIndexOwnerID)]
out, err := validator.Validate(attDocRaw, nonce)
assert.NoError(err)
assert.Equal(challenge, out)
// Mark node as intialized. We should still be abe to validate
assert.NoError(vtpm.MarkNodeAsInitialized(vtpm.OpenVTPM, []byte("Test"), []byte("Nonce")))
attDocRaw, err = issuer.Issue(challenge, nonce)
assert.NoError(err)
// Make sure the PCR changed
err = json.Unmarshal(attDocRaw, &attDoc)
require.NoError(err)
assert.NotEqual(originalPCR, attDoc.Attestation.Quotes[1].Pcrs.Pcrs[uint32(vtpm.PCRIndexOwnerID)])
out, err = validator.Validate(attDocRaw, nonce)
assert.NoError(err)
assert.Equal(challenge, out)
}