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|
package stfe
import (
"testing"
"crypto/tls"
"github.com/system-transparency/stfe/server/testdata"
"github.com/system-transparency/stfe/x509util"
)
var (
testLogId = make([]byte, 32)
testSignature = make([]byte, 32)
testNodeHash = make([]byte, 32)
testMessage = []byte("test message")
testPackage = []byte("foobar")
testChecksum = make([]byte, 32)
testTreeSize = uint64(128)
testTreeSizeLarger = uint64(256)
testTimestamp = uint64(0)
testProof = [][]byte{
make([]byte, 32),
make([]byte, 32),
}
testIndex = uint64(0)
testSignatureScheme = tls.Ed25519
)
// TestEncDecAppendix tests that valid appendices can be (un)marshaled, and that
// invalid ones in fact dail.
//
// TODO: max limits for certificate chains are not tested.
func TestEncDecAppendix(t *testing.T) {
chain, err := x509util.NewCertificateList(testdata.PemChain)
if err != nil {
t.Fatalf("must decode certificate chain: %v", err)
}
signatureMin := 1
signatureMax := 16383
for _, table := range []struct {
description string
appendix *Appendix
wantErr bool
}{
{
description: "too short signature",
appendix: NewAppendix(chain, make([]byte, signatureMin-1), uint16(testSignatureScheme)),
wantErr: true,
},
{
description: "too large signature",
appendix: NewAppendix(chain, make([]byte, signatureMax+1), uint16(testSignatureScheme)),
wantErr: true,
},
{
description: "ok signature: min",
appendix: NewAppendix(chain, make([]byte, signatureMin), uint16(testSignatureScheme)),
},
{
description: "ok signature: max",
appendix: NewAppendix(chain, make([]byte, signatureMax), uint16(testSignatureScheme)),
},
{
description: "too short chain",
appendix: NewAppendix(nil, testSignature, uint16(testSignatureScheme)),
wantErr: true,
},
} {
b, err := table.appendix.Marshal()
if err != nil && !table.wantErr {
t.Errorf("failed marshaling Appendix for %q: %v", table.description, err)
} else if err == nil && table.wantErr {
t.Errorf("succeeded marshaling Appendix but wanted error for %q", table.description)
}
if err != nil || table.wantErr {
continue // nothing to unmarshal
}
var appendix Appendix
if err := appendix.Unmarshal(b); err != nil {
t.Errorf("failed unmarshaling Appendix: %v", err)
}
}
}
// TestEncDecStItem tests that valid StItems can be (un)marshaled, and that
// invalid ones in fact fail.
//
// TODO: max limits for inclusion and consistency proofs are not tested.
// Note: TreeHeadV1 extensions are not tested (not used by stfe)
func TestEncDecStItem(t *testing.T) {
logIdSize := 32
signatureMin := 1
signatureMax := 65535
messageMax := 65535
nodeHashMin := 32
nodeHashMax := 255
packageMin := 1
packageMax := 255
checksumMin := 1
checksumMax := 64
for _, table := range []struct {
description string
item *StItem
wantErr bool
}{
// signed_tree_head_v1
{
description: "too short log id",
item: NewSignedTreeHeadV1(NewTreeHeadV1(makeTrillianLogRoot(t, testTimestamp, testTreeSize, testNodeHash)), make([]byte, logIdSize-1), testSignature),
wantErr: true,
},
{
description: "too large log id",
item: NewSignedTreeHeadV1(NewTreeHeadV1(makeTrillianLogRoot(t, testTimestamp, testTreeSize, testNodeHash)), make([]byte, logIdSize+1), testSignature),
wantErr: true,
},
{
description: "ok log id: min and max",
item: NewSignedTreeHeadV1(NewTreeHeadV1(makeTrillianLogRoot(t, testTimestamp, testTreeSize, testNodeHash)), testLogId, testSignature),
},
{
description: "too short signature",
item: NewSignedTreeHeadV1(NewTreeHeadV1(makeTrillianLogRoot(t, testTimestamp, testTreeSize, testNodeHash)), testLogId, make([]byte, signatureMin-1)),
wantErr: true,
},
{
description: "too large signature",
item: NewSignedTreeHeadV1(NewTreeHeadV1(makeTrillianLogRoot(t, testTimestamp, testTreeSize, testNodeHash)), testLogId, make([]byte, signatureMax+1)),
wantErr: true,
},
{
description: "ok signature: min",
item: NewSignedTreeHeadV1(NewTreeHeadV1(makeTrillianLogRoot(t, testTimestamp, testTreeSize, testNodeHash)), testLogId, make([]byte, signatureMin)),
},
{
description: "ok signature: max",
item: NewSignedTreeHeadV1(NewTreeHeadV1(makeTrillianLogRoot(t, testTimestamp, testTreeSize, testNodeHash)), testLogId, make([]byte, signatureMax)),
},
{
description: "too short root hash",
item: NewSignedTreeHeadV1(NewTreeHeadV1(makeTrillianLogRoot(t, testTimestamp, testTreeSize, make([]byte, nodeHashMin-1))), testLogId, testSignature),
wantErr: true,
},
{
description: "too large root hash",
item: NewSignedTreeHeadV1(NewTreeHeadV1(makeTrillianLogRoot(t, testTimestamp, testTreeSize, make([]byte, nodeHashMax+1))), testLogId, testSignature),
wantErr: true,
},
{
description: "ok root hash: min",
item: NewSignedTreeHeadV1(NewTreeHeadV1(makeTrillianLogRoot(t, testTimestamp, testTreeSize, make([]byte, nodeHashMin))), testLogId, testSignature),
},
{
description: "ok root hash: min",
item: NewSignedTreeHeadV1(NewTreeHeadV1(makeTrillianLogRoot(t, testTimestamp, testTreeSize, make([]byte, nodeHashMax))), testLogId, testSignature),
},
// signed_debug_info_v1
{
description: "too short log id",
item: NewSignedDebugInfoV1(make([]byte, logIdSize-1), testMessage, testSignature),
wantErr: true,
},
{
description: "too large log id",
item: NewSignedDebugInfoV1(make([]byte, logIdSize+1), testMessage, testSignature),
wantErr: true,
},
{
description: "ok log id: min and max",
item: NewSignedDebugInfoV1(testLogId, testMessage, testSignature),
},
{
description: "too large message",
item: NewSignedDebugInfoV1(testLogId, make([]byte, messageMax+1), testSignature),
wantErr: true,
},
{
description: "ok message: max",
item: NewSignedDebugInfoV1(testLogId, make([]byte, messageMax), testSignature),
},
{
description: "too short signature",
item: NewSignedDebugInfoV1(testLogId, testMessage, make([]byte, signatureMin-1)),
wantErr: true,
},
{
description: "too large signature",
item: NewSignedDebugInfoV1(testLogId, testMessage, make([]byte, signatureMax+1)),
wantErr: true,
},
{
description: "ok signature: min",
item: NewSignedDebugInfoV1(testLogId, testMessage, make([]byte, signatureMin)),
},
{
description: "ok signature: max",
item: NewSignedDebugInfoV1(testLogId, testMessage, make([]byte, signatureMax)),
},
// consistency_proof_v1
{
description: "too short log id",
item: NewConsistencyProofV1(make([]byte, logIdSize-1), testTreeSize, testTreeSizeLarger, testProof),
wantErr: true,
},
{
description: "too large log id",
item: NewConsistencyProofV1(make([]byte, logIdSize+1), testTreeSize, testTreeSizeLarger, testProof),
wantErr: true,
},
{
description: "ok log id: min and max",
item: NewConsistencyProofV1(testLogId, testTreeSize, testTreeSizeLarger, testProof),
},
{
description: "too small node hash in proof",
item: NewConsistencyProofV1(testLogId, testTreeSize, testTreeSizeLarger, [][]byte{make([]byte, nodeHashMin-1)}),
wantErr: true,
},
{
description: "too large node hash in proof",
item: NewConsistencyProofV1(testLogId, testTreeSize, testTreeSizeLarger, [][]byte{make([]byte, nodeHashMax+1)}),
wantErr: true,
},
{
description: "ok proof: min node hash",
item: NewConsistencyProofV1(testLogId, testTreeSize, testTreeSizeLarger, [][]byte{make([]byte, nodeHashMin)}),
},
{
description: "ok proof: max node hash",
item: NewConsistencyProofV1(testLogId, testTreeSize, testTreeSizeLarger, [][]byte{make([]byte, nodeHashMin)}),
},
{
description: "ok proof: empty",
item: NewConsistencyProofV1(testLogId, testTreeSize, testTreeSizeLarger, [][]byte{}),
},
// inclusion_proof_v1
{
description: "too short log id",
item: NewInclusionProofV1(make([]byte, logIdSize-1), testTreeSize, testIndex, testProof),
wantErr: true,
},
{
description: "too large log id",
item: NewInclusionProofV1(make([]byte, logIdSize+1), testTreeSize, testIndex, testProof),
wantErr: true,
},
{
description: "ok log id: min and max",
item: NewInclusionProofV1(testLogId, testTreeSize, testIndex, testProof),
},
{
description: "too short node hash in proof",
item: NewInclusionProofV1(testLogId, testTreeSize, testIndex, [][]byte{make([]byte, nodeHashMin-1)}),
wantErr: true,
},
{
description: "too large node hash in proof",
item: NewInclusionProofV1(testLogId, testTreeSize, testIndex, [][]byte{make([]byte, nodeHashMax+1)}),
wantErr: true,
},
{
description: "ok proof: min node hash",
item: NewInclusionProofV1(testLogId, testTreeSize, testIndex, [][]byte{make([]byte, nodeHashMin)}),
},
{
description: "ok proof: max node hash",
item: NewInclusionProofV1(testLogId, testTreeSize, testIndex, [][]byte{make([]byte, nodeHashMax)}),
},
{
description: "ok proof: empty",
item: NewInclusionProofV1(testLogId, testTreeSize, testIndex, [][]byte{}),
},
// checksum_v1
{
description: "too short package",
item: NewChecksumV1(make([]byte, packageMin-1), testChecksum),
wantErr: true,
},
{
description: "too large package",
item: NewChecksumV1(make([]byte, packageMax+1), testChecksum),
wantErr: true,
},
{
description: "ok package: min",
item: NewChecksumV1(make([]byte, packageMin), testChecksum),
},
{
description: "ok package: max",
item: NewChecksumV1(make([]byte, packageMax), testChecksum),
},
{
description: "too short checksum",
item: NewChecksumV1(testPackage, make([]byte, checksumMin-1)),
wantErr: true,
},
{
description: "too large checksum",
item: NewChecksumV1(testPackage, make([]byte, checksumMax+1)),
wantErr: true,
},
{
description: "ok checksum: min",
item: NewChecksumV1(testPackage, make([]byte, checksumMin)),
},
{
description: "ok checksum: max",
item: NewChecksumV1(testPackage, make([]byte, checksumMax)),
},
} {
b, err := table.item.Marshal()
if err != nil && !table.wantErr {
t.Errorf("failed marshaling StItem(%s) in test %q: %v", table.item.Format, table.description, err)
} else if err == nil && table.wantErr {
t.Errorf("succeeded marshaling StItem(%s) in test %q but want failure", table.item.Format, table.description)
}
if err != nil || table.wantErr {
continue // nothing to unmarshal
}
var item StItem
if err := item.Unmarshal(b); err != nil {
t.Errorf("failed unmarshaling StItem(%s) in test %q: %v", table.item.Format, table.description, err)
}
}
}
|
