image: reimplement and adapt measurement generation in Go

image/measured-boot/measure/pcr_test.go

@@ -0,0 +1,49 @@
+/*
+Copyright (c) Edgeless Systems GmbH
+
+SPDX-License-Identifier: AGPL-3.0-only
+*/
+
+package measure
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestExtendPCR(t *testing.T) {
+	assert := assert.New(t)
+
+	sim := NewDefaultSimulator()
+	assert.Equal(ZeroPCR256(), sim.Bank[4])
+
+	assert.NoError(sim.ExtendPCR(4, EVSeparatorPCR256(), []byte{0x00, 0x00, 0x00, 0x00}, "EV_SEPARATOR"))
+	assert.Equal(PCR256{
+		0x3d, 0x45, 0x8c, 0xfe, 0x55, 0xcc, 0x03, 0xea,
+		0x1f, 0x44, 0x3f, 0x15, 0x62, 0xbe, 0xec, 0x8d,
+		0xf5, 0x1c, 0x75, 0xe1, 0x4a, 0x9f, 0xcf, 0x9a,
+		0x72, 0x34, 0xa1, 0x3f, 0x19, 0x8e, 0x79, 0x69,
+	}, sim.Bank[4])
+
+	assert.NoError(sim.ExtendPCR(4, EVEFIActionPCR256(), nil, "EV_EFI_ACTION: Calling EFI Application from Boot Option"))
+	assert.Equal(PCR256{
+		0xdd, 0x50, 0xc8, 0xda, 0x0f, 0x89, 0x9f, 0x65,
+		0x5b, 0x43, 0x05, 0xd2, 0x43, 0x86, 0x63, 0xc1,
+		0xb3, 0xda, 0x6d, 0x19, 0x22, 0xa0, 0xc8, 0x22,
+		0x65, 0x33, 0xac, 0x41, 0x7a, 0xbc, 0xd5, 0x23,
+	}, sim.Bank[4])
+
+	assert.Equal([]Event{
+		{
+			PCRIndex: 0x4, Digest: Digest256(EVSeparatorPCR256()),
+			Data:        []uint8{0x0, 0x0, 0x0, 0x0},
+			Description: "EV_SEPARATOR",
+		},
+		{
+			PCRIndex: 0x4, Digest: Digest256(EVEFIActionPCR256()),
+			Data:        []uint8(nil),
+			Description: "EV_EFI_ACTION: Calling EFI Application from Boot Option",
+		},
+	}, sim.EventLog.Events)
+}