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package sceptest
import (
"crypto"
"crypto/x509"
"crypto/x509/pkix"
"encoding/json"
"encoding/pem"
"fmt"
"math/big"
"net"
"net/http"
"path/filepath"
"sync"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"go.step.sm/crypto/keyutil"
"go.step.sm/crypto/minica"
"go.step.sm/crypto/pemutil"
"github.com/smallstep/certificates/authority/config"
"github.com/smallstep/certificates/authority/provisioner"
"github.com/smallstep/certificates/ca"
)
func TestIssuesCertificateUsingSCEPWithDecrypter(t *testing.T) {
signer, err := keyutil.GenerateSigner("EC", "P-256", 0)
require.NoError(t, err)
dir := t.TempDir()
t.Setenv("STEPPATH", dir)
m, err := minica.New(minica.WithName("Step E2E | SCEP Decrypter"), minica.WithGetSignerFunc(func() (crypto.Signer, error) {
return signer, nil
}))
require.NoError(t, err)
rootFilepath := filepath.Join(dir, "root.crt")
_, err = pemutil.Serialize(m.Root, pemutil.WithFilename(rootFilepath))
require.NoError(t, err)
intermediateCertFilepath := filepath.Join(dir, "intermediate.crt")
_, err = pemutil.Serialize(m.Intermediate, pemutil.WithFilename(intermediateCertFilepath))
require.NoError(t, err)
intermediateKeyFilepath := filepath.Join(dir, "intermediate.key")
_, err = pemutil.Serialize(m.Signer, pemutil.WithFilename(intermediateKeyFilepath))
require.NoError(t, err)
decrypterKey, err := keyutil.GenerateKey("RSA", "", 2048)
require.NoError(t, err)
decrypter, ok := decrypterKey.(crypto.Decrypter)
require.True(t, ok)
decrypterCertifiate, err := m.Sign(&x509.Certificate{
Subject: pkix.Name{CommonName: "decrypter"},
PublicKey: decrypter.Public(),
SerialNumber: big.NewInt(1),
NotBefore: time.Now().Add(-1 * time.Hour),
NotAfter: time.Now().Add(1 * time.Hour),
DNSNames: []string{"decrypter"},
})
require.NoError(t, err)
b, err := pemutil.Serialize(decrypterCertifiate)
require.NoError(t, err)
decrypterCertificatePEMBytes := pem.EncodeToMemory(b)
b, err = pemutil.Serialize(decrypter, pemutil.WithPassword([]byte("1234")))
require.NoError(t, err)
decrypterKeyPEMBytes := pem.EncodeToMemory(b)
// get a random address to listen on and connect to; currently no nicer way to get one before starting the server
// TODO(hs): find/implement a nicer way to expose the CA URL, similar to how e.g. httptest.Server exposes it?
host, port := reservePort(t)
prov := &provisioner.SCEP{
ID: "scep",
Name: "scep",
Type: "SCEP",
ForceCN: false,
ChallengePassword: "",
EncryptionAlgorithmIdentifier: 2,
MinimumPublicKeyLength: 2048,
Claims: &config.GlobalProvisionerClaims,
DecrypterCertificate: decrypterCertificatePEMBytes,
DecrypterKeyPEM: decrypterKeyPEMBytes,
DecrypterKeyPassword: "1234",
}
err = prov.Init(provisioner.Config{})
require.NoError(t, err)
cfg := &config.Config{
Root: []string{rootFilepath},
IntermediateCert: intermediateCertFilepath,
IntermediateKey: intermediateKeyFilepath,
Address: net.JoinHostPort(host, port), // reuse the address that was just "reserved"
DNSNames: []string{"127.0.0.1", "[::1]", "localhost"},
AuthorityConfig: &config.AuthConfig{
AuthorityID: "stepca-test-scep",
DeploymentType: "standalone-test",
Provisioners: provisioner.List{prov},
},
Logger: json.RawMessage(`{"format": "text"}`),
}
c, err := ca.New(cfg)
require.NoError(t, err)
var wg sync.WaitGroup
wg.Add(1)
go func() {
defer wg.Done()
err = c.Run()
require.ErrorIs(t, err, http.ErrServerClosed)
}()
// instantiate a client for the CA running at the random address
caClient := newCAClient(t, fmt.Sprintf("https://localhost:%s", port), rootFilepath)
requireHealthyCA(t, caClient)
scepClient := createSCEPClient(t, fmt.Sprintf("https://localhost:%s/scep/scep", port), m.Root)
cert, err := scepClient.requestCertificate(t, "test.localhost", []string{"test.localhost"})
assert.NoError(t, err)
require.NotNil(t, cert)
assert.Equal(t, "test.localhost", cert.Subject.CommonName)
assert.Equal(t, "Step E2E | SCEP Decrypter Intermediate CA", cert.Issuer.CommonName)
// done testing; stop and wait for the server to quit
err = c.Stop()
require.NoError(t, err)
wg.Wait()
}
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