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//
// Copyright 2021 The Sigstore Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package signature
import (
"testing"
"github.com/go-test/deep"
"github.com/google/go-containerregistry/pkg/name"
)
const validDigest = "sha256:d34db33fd34db33fd34db33fd34db33fd34db33fd34db33fd34db33fd34db33f"
func mustParseDigest(t *testing.T, digestStr string) name.Digest {
t.Helper()
digest, err := name.NewDigest(digestStr)
if err != nil {
t.Fatalf("could not parse digest %q: %v", digestStr, err)
}
return digest
}
func TestProviderRoundtrip(t *testing.T) {
ecdsaSV, _, err := NewDefaultECDSASignerVerifier()
if err != nil {
t.Fatalf("Could not generate ecdsa SignerVerifier for test: %v", err)
}
rsaSV, _, err := NewDefaultRSAPSSSignerVerifier()
if err != nil {
t.Fatalf("Could not generate rsa SignerVerifier for test: %v", err)
}
testCases := []struct {
desc string
sv SignerVerifier
digest name.Digest
claims map[string]interface{}
}{
{
desc: "ECDSA",
sv: ecdsaSV,
digest: mustParseDigest(t, "example.com/ecdsa@"+validDigest),
claims: map[string]interface{}{
"creator": "ECDSA",
"optional": "extras",
},
},
{
desc: "RSA",
sv: rsaSV,
digest: mustParseDigest(t, "example.com/rsa@"+validDigest),
claims: map[string]interface{}{
"creator": "RSA",
"Floaty McFloatface": 6.022e23,
},
},
}
for _, tc := range testCases {
t.Run(tc.desc, func(t *testing.T) {
payload, sig, err := SignImage(tc.sv, tc.digest, tc.claims)
if err != nil {
t.Fatalf("SignImage returned error: %v", err)
}
rtDigest, rtClaims, err := VerifyImageSignature(tc.sv, payload, sig)
if err != nil {
t.Fatalf("VerifyImageSignature returned error: %v", err)
}
if tc.digest.Name() != rtDigest.Name() {
t.Errorf("got digest %q, wanted %q", rtDigest.Name(), tc.digest.Name())
}
if diff := deep.Equal(tc.claims, rtClaims); diff != nil {
t.Errorf("claims were altered during the roundtrip: %v", diff)
}
})
}
}
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