trezor: add TrezorPayload

TrezorPayload stores 32 random bytes used for unlocking
the master key using a Trezor security module. The randomness makes sure
that a unique unlock value is used for each gocryptfs filesystem.

1 files changed, 3 insertions, 0 deletions

diff --git a/tests/trezor/trezor_test.go b/tests/trezor/trezor_test.go
index 5db56e2..59e10cb 100644
--- a/tests/trezor/trezor_test.go
+++ b/tests/trezor/trezor_test.go
@@ -42,6 +42,9 @@ func TestInitTrezor(t *testing.T) {
 	if !c.IsFeatureFlagSet(configfile.FlagTrezor) {
 		t.Error("Trezor flag should be set but is not")
 	}
+	if len(c.TrezorPayload) != 32 {
+		t.Errorf("TrezorPayload has wrong length: %d", len(c.TrezorPayload))
+	}
 }
 
 // Test using -trezor together with -extpass. Should fail with code 1 (usage error).