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package signerverifier
import (
"context"
"crypto/ed25519"
"encoding/json"
"os"
"path/filepath"
"testing"
"github.com/secure-systems-lab/go-securesystemslib/cjson"
"github.com/secure-systems-lab/go-securesystemslib/dsse"
"github.com/stretchr/testify/assert"
)
func TestNewED25519SignerVerifierFromSSLibKey(t *testing.T) {
key, err := LoadED25519KeyFromFile(filepath.Join("test-data", "ed25519-test-key.pub"))
if err != nil {
t.Error(err)
}
sv, err := NewED25519SignerVerifierFromSSLibKey(key)
if err != nil {
t.Error(err)
}
expectedPublicString := "3f586ce67329419fb0081bd995914e866a7205da463d593b3b490eab2b27fd3f"
expectedPublicKey := ed25519.PublicKey(hexDecode(t, expectedPublicString))
assert.Equal(t, "52e3b8e73279d6ebdd62a5016e2725ff284f569665eb92ccb145d83817a02997", sv.keyID)
assert.Equal(t, expectedPublicKey, sv.public)
assert.Nil(t, sv.private)
}
func TestLoadED25519KeyFromFile(t *testing.T) {
t.Run("ED25519 public key", func(t *testing.T) {
key, err := LoadED25519KeyFromFile(filepath.Join("test-data", "ed25519-test-key.pub"))
assert.Nil(t, err)
assert.Equal(t, "52e3b8e73279d6ebdd62a5016e2725ff284f569665eb92ccb145d83817a02997", key.KeyID)
assert.Equal(t, "3f586ce67329419fb0081bd995914e866a7205da463d593b3b490eab2b27fd3f", key.KeyVal.Public)
assert.Equal(t, "ed25519", key.Scheme)
assert.Equal(t, ED25519KeyType, key.KeyType)
})
t.Run("ED25519 private key", func(t *testing.T) {
key, err := LoadED25519KeyFromFile(filepath.Join("test-data", "ed25519-test-key"))
assert.Nil(t, err)
assert.Equal(t, "52e3b8e73279d6ebdd62a5016e2725ff284f569665eb92ccb145d83817a02997", key.KeyID)
assert.Equal(t, "3f586ce67329419fb0081bd995914e866a7205da463d593b3b490eab2b27fd3f", key.KeyVal.Public)
assert.Equal(t, "66f6ebad4aeb949b91c84c9cfd6ee351fc4fd544744bab6e30fb400ba13c6e9a", key.KeyVal.Private)
assert.Equal(t, "ed25519", key.Scheme)
assert.Equal(t, ED25519KeyType, key.KeyType)
})
t.Run("invalid path", func(t *testing.T) {
_, err := LoadED25519KeyFromFile(filepath.Join("test-data", "invalid"))
assert.ErrorContains(t, err, "unable to load ED25519 key from file")
})
}
func TestED25519SignerVerifierSign(t *testing.T) {
key, err := LoadED25519KeyFromFile(filepath.Join("test-data", "ed25519-test-key"))
if err != nil {
t.Fatal(err)
}
sv, err := NewED25519SignerVerifierFromSSLibKey(key)
if err != nil {
t.Error(err)
}
message := []byte("test message")
signature, err := sv.Sign(context.Background(), message)
if err != nil {
t.Error(err)
}
expectedSignature := []byte{0x80, 0x72, 0xb4, 0x31, 0xc5, 0xa3, 0x7e, 0xc, 0xf3, 0x91, 0x22, 0x3, 0x60, 0xbf, 0x92, 0xa4, 0x46, 0x31, 0x84, 0x83, 0xf1, 0x31, 0x3, 0xdc, 0xbc, 0x5, 0x6f, 0xab, 0x84, 0xe4, 0xdc, 0xe9, 0xf5, 0x1c, 0xa9, 0xb3, 0x95, 0xa5, 0xa0, 0x16, 0xd3, 0xaa, 0x4d, 0xe7, 0xde, 0xaf, 0xc2, 0x5e, 0x1e, 0x9a, 0x9d, 0xc8, 0xb2, 0x5c, 0x1c, 0x68, 0xf7, 0x28, 0xb4, 0x1, 0x4d, 0x9f, 0xc8, 0x4}
assert.Equal(t, expectedSignature, signature)
key, err = LoadED25519KeyFromFile(filepath.Join("test-data", "ed25519-test-key.pub"))
if err != nil {
t.Fatal(err)
}
sv, err = NewED25519SignerVerifierFromSSLibKey(key)
if err != nil {
t.Error(err)
}
_, err = sv.Sign(context.Background(), message)
assert.ErrorIs(t, err, ErrNotPrivateKey)
}
func TestED25519SignerVerifierVerify(t *testing.T) {
key, err := LoadED25519KeyFromFile(filepath.Join("test-data", "ed25519-test-key.pub"))
if err != nil {
t.Fatal(err)
}
sv, err := NewED25519SignerVerifierFromSSLibKey(key)
if err != nil {
t.Error(err)
}
message := []byte("test message")
signature := []byte{0x80, 0x72, 0xb4, 0x31, 0xc5, 0xa3, 0x7e, 0xc, 0xf3, 0x91, 0x22, 0x3, 0x60, 0xbf, 0x92, 0xa4, 0x46, 0x31, 0x84, 0x83, 0xf1, 0x31, 0x3, 0xdc, 0xbc, 0x5, 0x6f, 0xab, 0x84, 0xe4, 0xdc, 0xe9, 0xf5, 0x1c, 0xa9, 0xb3, 0x95, 0xa5, 0xa0, 0x16, 0xd3, 0xaa, 0x4d, 0xe7, 0xde, 0xaf, 0xc2, 0x5e, 0x1e, 0x9a, 0x9d, 0xc8, 0xb2, 0x5c, 0x1c, 0x68, 0xf7, 0x28, 0xb4, 0x1, 0x4d, 0x9f, 0xc8, 0x4}
assert.Nil(t, sv.Verify(context.Background(), message, signature))
message = []byte("corrupted message")
err = sv.Verify(context.Background(), message, signature)
assert.ErrorIs(t, err, ErrSignatureVerificationFailed)
}
func TestED25519SignerVerifierWithDSSEEnvelope(t *testing.T) {
key, err := LoadED25519KeyFromFile(filepath.Join("test-data", "ed25519-test-key"))
if err != nil {
t.Fatal(err)
}
sv, err := NewED25519SignerVerifierFromSSLibKey(key)
if err != nil {
t.Fatal(err)
}
payloadType := "application/vnd.dsse+json"
payload := []byte("test message")
es, err := dsse.NewEnvelopeSigner(sv)
if err != nil {
t.Error(err)
}
env, err := es.SignPayload(context.Background(), payloadType, payload)
if err != nil {
t.Error(err)
}
assert.Equal(t, "52e3b8e73279d6ebdd62a5016e2725ff284f569665eb92ccb145d83817a02997", env.Signatures[0].KeyID)
envPayload, err := env.DecodeB64Payload()
assert.Equal(t, payload, envPayload)
assert.Nil(t, err)
key, err = LoadED25519KeyFromFile(filepath.Join("test-data", "ed25519-test-key.pub"))
if err != nil {
t.Fatal(err)
}
sv, err = NewED25519SignerVerifierFromSSLibKey(key)
if err != nil {
t.Fatal(err)
}
ev, err := dsse.NewEnvelopeVerifier(sv)
if err != nil {
t.Error(err)
}
acceptedKeys, err := ev.Verify(context.Background(), env)
assert.Nil(t, err)
assert.Equal(t, "52e3b8e73279d6ebdd62a5016e2725ff284f569665eb92ccb145d83817a02997", acceptedKeys[0].KeyID)
}
func TestED25519SignerVerifierWithDSSEEnvelopeAndPEMKey(t *testing.T) {
key, err := LoadKey(ed25519PrivateKey)
if err != nil {
t.Fatal(err)
}
sv, err := NewED25519SignerVerifierFromSSLibKey(key)
if err != nil {
t.Fatal(err)
}
payloadType := "application/vnd.dsse+json"
payload := []byte("test message")
es, err := dsse.NewEnvelopeSigner(sv)
if err != nil {
t.Error(err)
}
env, err := es.SignPayload(context.Background(), payloadType, payload)
if err != nil {
t.Error(err)
}
assert.Equal(t, "52e3b8e73279d6ebdd62a5016e2725ff284f569665eb92ccb145d83817a02997", env.Signatures[0].KeyID)
envPayload, err := env.DecodeB64Payload()
assert.Equal(t, payload, envPayload)
assert.Nil(t, err)
key, err = LoadKey(ed25519PublicKey)
if err != nil {
t.Fatal(err)
}
sv, err = NewED25519SignerVerifierFromSSLibKey(key)
if err != nil {
t.Fatal(err)
}
ev, err := dsse.NewEnvelopeVerifier(sv)
if err != nil {
t.Error(err)
}
acceptedKeys, err := ev.Verify(context.Background(), env)
assert.Nil(t, err)
assert.Equal(t, "52e3b8e73279d6ebdd62a5016e2725ff284f569665eb92ccb145d83817a02997", acceptedKeys[0].KeyID)
}
func TestED25519SignerVerifierWithMetablockFile(t *testing.T) {
key, err := LoadED25519KeyFromFile(filepath.Join("test-data", "ed25519-test-key.pub"))
if err != nil {
t.Fatal(err)
}
sv, err := NewED25519SignerVerifierFromSSLibKey(key)
if err != nil {
t.Fatal(err)
}
metadataBytes, err := os.ReadFile(filepath.Join("test-data", "test-ed25519.52e3b8e7.link"))
if err != nil {
t.Fatal(err)
}
mb := struct {
Signatures []struct {
KeyID string `json:"keyid"`
Sig string `json:"sig"`
} `json:"signatures"`
Signed any `json:"signed"`
}{}
if err := json.Unmarshal(metadataBytes, &mb); err != nil {
t.Fatal(err)
}
assert.Equal(t, "4c8b7605a9195d4ddba54493bbb5257a9836c1d16056a027fd77e97b95a4f3e36f8bc3c9c9960387d68187760b3072a30c44f992c5bf8f7497c303a3b0a32403", mb.Signatures[0].Sig)
assert.Equal(t, sv.keyID, mb.Signatures[0].KeyID)
encodedBytes, err := cjson.EncodeCanonical(mb.Signed)
if err != nil {
t.Fatal(err)
}
decodedSig := hexDecode(t, mb.Signatures[0].Sig)
err = sv.Verify(context.Background(), encodedBytes, decodedSig)
assert.Nil(t, err)
}
func TestED25519SignerVerifierWithMetablockFileAndPEMKey(t *testing.T) {
key, err := LoadKey(ed25519PublicKey)
if err != nil {
t.Fatal(err)
}
sv, err := NewED25519SignerVerifierFromSSLibKey(key)
if err != nil {
t.Fatal(err)
}
metadataBytes, err := os.ReadFile(filepath.Join("test-data", "test-ed25519.52e3b8e7.link"))
if err != nil {
t.Fatal(err)
}
mb := struct {
Signatures []struct {
KeyID string `json:"keyid"`
Sig string `json:"sig"`
} `json:"signatures"`
Signed any `json:"signed"`
}{}
if err := json.Unmarshal(metadataBytes, &mb); err != nil {
t.Fatal(err)
}
assert.Equal(t, "4c8b7605a9195d4ddba54493bbb5257a9836c1d16056a027fd77e97b95a4f3e36f8bc3c9c9960387d68187760b3072a30c44f992c5bf8f7497c303a3b0a32403", mb.Signatures[0].Sig)
assert.Equal(t, sv.keyID, mb.Signatures[0].KeyID)
encodedBytes, err := cjson.EncodeCanonical(mb.Signed)
if err != nil {
t.Fatal(err)
}
decodedSig := hexDecode(t, mb.Signatures[0].Sig)
err = sv.Verify(context.Background(), encodedBytes, decodedSig)
assert.Nil(t, err)
}
|
