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// Copyright The Notary Project 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 (
"crypto/ecdsa"
"crypto/ed25519"
"crypto/elliptic"
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"reflect"
"strconv"
"testing"
"github.com/notaryproject/notation-core-go/testhelper"
)
func TestExtractKeySpec(t *testing.T) {
type testCase struct {
name string
cert *x509.Certificate
expect KeySpec
expectErr bool
}
// invalid cases
tests := []testCase{
{
name: "RSA wrong size",
cert: testhelper.GetUnsupportedRSACert().Cert,
expect: KeySpec{},
expectErr: true,
},
{
name: "ECDSA wrong size",
cert: testhelper.GetUnsupportedECCert().Cert,
expect: KeySpec{},
expectErr: true,
},
{
name: "Unsupported type",
cert: &x509.Certificate{
PublicKey: ed25519.PublicKey{},
},
expect: KeySpec{},
expectErr: true,
},
}
// append valid RSA cases
for _, k := range []int{2048, 3072, 4096} {
rsaRoot := testhelper.GetRSARootCertificate()
priv, _ := rsa.GenerateKey(rand.Reader, k)
certTuple := testhelper.GetRSACertTupleWithPK(
priv,
"Test RSA_"+strconv.Itoa(priv.Size()),
&rsaRoot,
)
tests = append(tests, testCase{
name: "RSA " + strconv.Itoa(k),
cert: certTuple.Cert,
expect: KeySpec{
Type: KeyTypeRSA,
Size: k,
},
expectErr: false,
})
}
// append valid EDCSA cases
for _, curve := range []elliptic.Curve{elliptic.P256(), elliptic.P384(), elliptic.P521()} {
ecdsaRoot := testhelper.GetECRootCertificate()
priv, _ := ecdsa.GenerateKey(curve, rand.Reader)
bitSize := priv.Params().BitSize
certTuple := testhelper.GetECDSACertTupleWithPK(
priv,
"Test EC_"+strconv.Itoa(bitSize),
&ecdsaRoot,
)
tests = append(tests, testCase{
name: "EC " + strconv.Itoa(bitSize),
cert: certTuple.Cert,
expect: KeySpec{
Type: KeyTypeEC,
Size: bitSize,
},
expectErr: false,
})
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
keySpec, err := ExtractKeySpec(tt.cert)
if (err != nil) != tt.expectErr {
t.Errorf("error = %v, expectErr = %v", err, tt.expectErr)
}
if !reflect.DeepEqual(keySpec, tt.expect) {
t.Errorf("expect %+v, got %+v", tt.expect, keySpec)
}
})
}
}
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