public static void WriteTwoCertsNoKeys_NoEncryption()
{
Pkcs12SafeContents contents = new Pkcs12SafeContents();
byte[] rawData1;
byte[] rawData2;
using (X509Certificate2 cert1 = Certificates.RSAKeyTransferCapi1.GetCertificate())
using (X509Certificate2 cert2 = Certificates.RSAKeyTransfer2.GetCertificate())
{
// Windows seems to treat these as a stack. (LIFO)
contents.AddCertificate(cert2);
contents.AddCertificate(cert1);
rawData1 = cert1.RawData;
rawData2 = cert2.RawData;
}
Pkcs12Builder builder = new Pkcs12Builder();
builder.AddSafeContentsUnencrypted(contents);
const string password = nameof(WriteOneCertNoKeys_NoEncryption);
builder.SealWithMac(password, HashAlgorithmName.SHA1, 1024);
byte[] pfx = builder.Encode();
ImportedCollection coll =
ImportedCollection.Import(pfx, password, X509KeyStorageFlags.EphemeralKeySet);
using (coll)
{
Assert.Equal(2, coll.Collection.Count);
Assert.Equal(rawData1, coll.Collection[0].RawData);
Assert.Equal(rawData2, coll.Collection[1].RawData);
Assert.False(coll.Collection[0].HasPrivateKey, "coll.Collection[0].HasPrivateKey");
Assert.False(coll.Collection[1].HasPrivateKey, "coll.Collection[1].HasPrivateKey");
}
}
public static void AddNullContents()
{
Pkcs12Builder builder = new Pkcs12Builder();
AssertExtensions.Throws <ArgumentNullException>(
"safeContents",
() => builder.AddSafeContentsUnencrypted(null));
AssertExtensions.Throws <ArgumentNullException>(
"safeContents",
() => builder.AddSafeContentsEncrypted(null, Array.Empty <byte>(), s_pbkdf2Parameters));
AssertExtensions.Throws <ArgumentNullException>(
"safeContents",
() => builder.AddSafeContentsEncrypted(null, ReadOnlySpan <byte> .Empty, s_pbkdf2Parameters));
AssertExtensions.Throws <ArgumentNullException>(
"safeContents",
() => builder.AddSafeContentsEncrypted(null, string.Empty, s_pbkdf2Parameters));
AssertExtensions.Throws <ArgumentNullException>(
"safeContents",
() => builder.AddSafeContentsEncrypted(null, ReadOnlySpan <char> .Empty, s_pbkdf2Parameters));
}
public void CertAndKeyTwice_KeysUntagged()
{
string pw = nameof(CertAndKeyTwice);
using (var cert = new X509Certificate2(TestData.PfxData, TestData.PfxDataPassword, s_exportableImportFlags))
using (RSA key = cert.GetRSAPrivateKey())
{
Pkcs12Builder builder = new Pkcs12Builder();
Pkcs12SafeContents keyContents = new Pkcs12SafeContents();
Pkcs12SafeContents certContents = new Pkcs12SafeContents();
Pkcs12SafeBag key1 = keyContents.AddShroudedKey(key, pw, s_windowsPbe);
Pkcs12SafeBag key2 = keyContents.AddShroudedKey(key, pw, s_windowsPbe);
Pkcs12SafeBag cert1 = certContents.AddCertificate(cert);
Pkcs12SafeBag cert2 = certContents.AddCertificate(cert);
Pkcs9LocalKeyId id2 = new Pkcs9LocalKeyId(cert.GetCertHash());
Pkcs9LocalKeyId id3 = new Pkcs9LocalKeyId(BitConverter.GetBytes(3));
Pkcs9LocalKeyId id4 = new Pkcs9LocalKeyId(BitConverter.GetBytes(4));
cert1.Attributes.Add(s_keyIdOne);
cert2.Attributes.Add(id2);
key1.Attributes.Add(id3);
key2.Attributes.Add(id4);
AddContents(keyContents, builder, pw, encrypt: false);
AddContents(certContents, builder, pw, encrypt: true);
builder.SealWithMac(pw, s_digestAlgorithm, MacCount);
byte[] pfxBytes = builder.Encode();
ReadUnreadablePfx(
pfxBytes,
pw,
// NTE_BAD_DATA
-2146893819);
}
}
public void OneCertWithOneKey(SingleCertOptions options)
{
bool sameContainer = (options & SingleCertOptions.KeyAndCertInSameContents) != 0;
bool dontShroudKey = (options & SingleCertOptions.UnshroudedKey) != 0;
bool keyContainerLast = (options & SingleCertOptions.KeyContentsLast) != 0;
bool encryptCertSafeContents = (options & SingleCertOptions.PlaintextCertContents) == 0;
bool encryptKeySafeContents = (options & SingleCertOptions.EncryptKeyContents) != 0;
bool skipMac = (options & SingleCertOptions.SkipMac) != 0;
string password = options.ToString();
using (var cert = new X509Certificate2(TestData.PfxData, TestData.PfxDataPassword, s_exportableImportFlags))
using (RSA key = cert.GetRSAPrivateKey())
{
if (dontShroudKey && OperatingSystem.IsWindows())
{
// CNG keys are only encrypted-exportable, so we need to export them encrypted.
// Then we can import it into a new, fully-exportable key. (Sigh.)
byte[] tmpPkcs8 = key.ExportEncryptedPkcs8PrivateKey(password, s_windowsPbe);
key.ImportEncryptedPkcs8PrivateKey(password, tmpPkcs8, out _);
}
Pkcs12Builder builder = new Pkcs12Builder();
Pkcs12SafeContents certContents = new Pkcs12SafeContents();
Pkcs12SafeContents keyContents = sameContainer ? null : new Pkcs12SafeContents();
Pkcs12SafeContents keyEffectiveContents = keyContents ?? certContents;
Pkcs12SafeBag certBag = certContents.AddCertificate(cert);
Pkcs12SafeBag keyBag;
if (dontShroudKey)
{
keyBag = keyEffectiveContents.AddKeyUnencrypted(key);
}
else
{
keyBag = keyEffectiveContents.AddShroudedKey(key, password, s_windowsPbe);
}
certBag.Attributes.Add(s_keyIdOne);
keyBag.Attributes.Add(s_keyIdOne);
if (sameContainer)
{
AddContents(certContents, builder, password, encryptCertSafeContents);
}
else if (keyContainerLast)
{
AddContents(certContents, builder, password, encryptCertSafeContents);
AddContents(keyContents, builder, password, encryptKeySafeContents);
}
else
{
AddContents(keyContents, builder, password, encryptKeySafeContents);
AddContents(certContents, builder, password, encryptCertSafeContents);
}
if (skipMac)
{
builder.SealWithoutIntegrity();
}
else
{
builder.SealWithMac(password, s_digestAlgorithm, MacCount);
}
ReadPfx(builder.Encode(), password, cert);
}
}
public static void EncryptDecryptMixBytesAndChars(bool encryptBytes, bool withSpan)
{
Pkcs12SafeContents contents = new Pkcs12SafeContents();
contents.AddSecret(s_zeroOid, s_derNull);
string password = nameof(EncryptDecryptMixBytesAndChars);
Span <byte> passwordUtf8Bytes = stackalloc byte[password.Length];
Encoding.UTF8.GetBytes(password, passwordUtf8Bytes);
Pkcs12Builder builder = new Pkcs12Builder();
if (encryptBytes)
{
builder.AddSafeContentsEncrypted(contents, passwordUtf8Bytes, s_pbkdf2Parameters);
}
else
{
builder.AddSafeContentsEncrypted(contents, password, s_pbkdf2Parameters);
}
builder.SealWithMac(password, HashAlgorithmName.SHA1, 2048);
byte[] encoded = builder.Encode();
Pkcs12Info info = Pkcs12Info.Decode(encoded, out _, skipCopy: true);
Assert.True(info.VerifyMac(password));
ReadOnlyCollection <Pkcs12SafeContents> authSafe = info.AuthenticatedSafe;
Assert.Equal(1, authSafe.Count);
Pkcs12SafeContents readContents = authSafe[0];
Assert.Equal(
Pkcs12ConfidentialityMode.Password,
readContents.ConfidentialityMode);
if (encryptBytes)
{
if (withSpan)
{
readContents.Decrypt(password.AsSpan());
}
else
{
readContents.Decrypt(password);
}
}
else
{
if (withSpan)
{
readContents.Decrypt(passwordUtf8Bytes);
}
else
{
readContents.Decrypt(passwordUtf8Bytes.ToArray());
}
}
Assert.Equal(
Pkcs12ConfidentialityMode.None,
readContents.ConfidentialityMode);
List <Pkcs12SafeBag> bags = readContents.GetBags().ToList();
Assert.Equal(1, bags.Count);
Pkcs12SecretBag secretBag = Assert.IsType <Pkcs12SecretBag>(bags[0]);
Assert.Equal(s_zeroOid.Value, secretBag.GetSecretType().Value);
Assert.Equal(s_derNull.ByteArrayToHex(), secretBag.SecretValue.ByteArrayToHex());
}
public static void EncodeAndTryEncode(Pkcs12IntegrityMode mode)
{
Pkcs12Builder builder1 = new Pkcs12Builder();
Pkcs12Builder builder2 = new Pkcs12Builder();
Pkcs12SafeContents contents = new Pkcs12SafeContents();
contents.AddSecret(s_zeroOid, s_derNull);
builder1.AddSafeContentsUnencrypted(contents);
builder2.AddSafeContentsUnencrypted(contents);
int macTrailerLength = 0;
if (mode == Pkcs12IntegrityMode.Password)
{
builder1.SealWithMac(ReadOnlySpan <char> .Empty, HashAlgorithmName.SHA1, 2);
builder2.SealWithMac(ReadOnlySpan <char> .Empty, HashAlgorithmName.SHA1, 2);
// Two OCTET STRINGs of 20 bytes, and the INTEGER 2
macTrailerLength = 2 + 20 + 2 + 20 + 2 + 3;
}
else if (mode == Pkcs12IntegrityMode.None)
{
builder1.SealWithoutIntegrity();
builder2.SealWithoutIntegrity();
}
Assert.True(builder1.IsSealed, "builder1.IsSealed");
Assert.True(builder2.IsSealed, "builder2.IsSealed");
byte[] encoded = builder1.Encode();
byte[] buf = new byte[encoded.Length + 40];
Span <byte> bufSpan = buf;
// Span too small
Assert.False(builder2.TryEncode(buf.AsSpan(0, encoded.Length - 1), out int bytesWritten));
Assert.Equal(0, bytesWritten);
// Span exactly right
bufSpan.Fill(0xCA);
Assert.True(builder2.TryEncode(buf.AsSpan(1, encoded.Length), out bytesWritten));
Assert.Equal(encoded.Length, bytesWritten);
Assert.Equal(0xCA, buf[0]);
Assert.Equal(0xCA, buf[bytesWritten + 1]);
if (mode == Pkcs12IntegrityMode.Password)
{
Assert.Equal(0x02, buf[bytesWritten]);
}
// The same contents except the MAC (different random salt)
Assert.Equal(
encoded.AsSpan(0, bytesWritten - macTrailerLength).ByteArrayToHex(),
buf.AsSpan(1, bytesWritten - macTrailerLength).ByteArrayToHex());
if (macTrailerLength > 0)
{
Assert.NotEqual(
encoded.AsSpan(bytesWritten - macTrailerLength).ByteArrayToHex(),
buf.AsSpan(1 + bytesWritten - macTrailerLength, macTrailerLength).ByteArrayToHex());
}
// Span larger than needed
bufSpan.Fill(0xCA);
Assert.True(builder2.TryEncode(buf.AsSpan(2), out bytesWritten));
Assert.Equal(encoded.Length, bytesWritten);
Assert.Equal(0xCA, buf[0]);
Assert.Equal(0xCA, buf[1]);
Assert.Equal(0xCA, buf[bytesWritten + 2]);
if (mode == Pkcs12IntegrityMode.Password)
{
Assert.Equal(0x02, buf[bytesWritten + 1]);
}
// The same contents except the MAC (different random salt)
Assert.Equal(
encoded.AsSpan(0, bytesWritten - macTrailerLength).ByteArrayToHex(),
buf.AsSpan(2, bytesWritten - macTrailerLength).ByteArrayToHex());
if (macTrailerLength > 0)
{
Assert.NotEqual(
encoded.AsSpan(bytesWritten - macTrailerLength).ByteArrayToHex(),
buf.AsSpan(2 + bytesWritten - macTrailerLength, macTrailerLength).ByteArrayToHex());
}
}
public void TwoCerts_TwoKeys_ManySafeContentsValues(bool invertCertOrder, bool invertKeyOrder)
{
string pw = nameof(TwoCerts_TwoKeys_ManySafeContentsValues);
using (ImportedCollection ic = Cert.Import(TestData.MultiPrivateKeyPfx, null, s_exportableImportFlags))
{
X509Certificate2Collection certs = ic.Collection;
X509Certificate2 first = certs[0];
X509Certificate2 second = certs[1];
if (invertCertOrder)
{
X509Certificate2 tmp = first;
first = second;
second = tmp;
}
using (AsymmetricAlgorithm firstKey = first.GetRSAPrivateKey())
using (AsymmetricAlgorithm secondKey = second.GetRSAPrivateKey())
{
AsymmetricAlgorithm firstAdd = firstKey;
AsymmetricAlgorithm secondAdd = secondKey;
if (invertKeyOrder != invertCertOrder)
{
AsymmetricAlgorithm tmp = firstKey;
firstAdd = secondAdd;
secondAdd = tmp;
}
Pkcs12Builder builder = new Pkcs12Builder();
Pkcs12SafeContents firstKeyContents = new Pkcs12SafeContents();
Pkcs12SafeContents secondKeyContents = new Pkcs12SafeContents();
Pkcs12SafeContents firstCertContents = new Pkcs12SafeContents();
Pkcs12SafeContents secondCertContents = new Pkcs12SafeContents();
Pkcs12SafeContents irrelevant = new Pkcs12SafeContents();
irrelevant.AddSecret(new Oid("0.0"), new byte[] { 0x05, 0x00 });
Pkcs12SafeBag firstAddedKeyBag = firstKeyContents.AddShroudedKey(firstAdd, pw, s_windowsPbe);
Pkcs12SafeBag secondAddedKeyBag = secondKeyContents.AddShroudedKey(secondAdd, pw, s_windowsPbe);
Pkcs12SafeBag firstCertBag = firstCertContents.AddCertificate(first);
Pkcs12SafeBag secondCertBag = secondCertContents.AddCertificate(second);
Pkcs12SafeBag firstKeyBag = firstAddedKeyBag;
Pkcs12SafeBag secondKeyBag = secondAddedKeyBag;
if (invertKeyOrder != invertCertOrder)
{
Pkcs12SafeBag tmp = firstKeyBag;
firstKeyBag = secondKeyBag;
secondKeyBag = tmp;
}
firstCertBag.Attributes.Add(s_keyIdOne);
firstKeyBag.Attributes.Add(s_keyIdOne);
Pkcs9LocalKeyId secondKeyId = new Pkcs9LocalKeyId(second.GetCertHash());
secondCertBag.Attributes.Add(secondKeyId);
secondKeyBag.Attributes.Add(secondKeyId);
// 2C, 1K, 1C, 2K
// With some non-participating contents values sprinkled in for good measure.
AddContents(irrelevant, builder, pw, encrypt: true);
AddContents(secondCertContents, builder, pw, encrypt: true);
AddContents(irrelevant, builder, pw, encrypt: false);
AddContents(firstKeyContents, builder, pw, encrypt: false);
AddContents(firstCertContents, builder, pw, encrypt: true);
AddContents(irrelevant, builder, pw, encrypt: false);
AddContents(secondKeyContents, builder, pw, encrypt: true);
AddContents(irrelevant, builder, pw, encrypt: true);
builder.SealWithMac(pw, s_digestAlgorithm, MacCount);
byte[] pfxBytes = builder.Encode();
X509Certificate2[] expectedOrder = { first, second };
Action <X509Certificate2> followup = CheckKeyConsistency;
// For unknown reasons, CheckKeyConsistency on this test fails
// on Windows 7 with an Access Denied in all variations for
// Collections, and in invertCertOrder: true for Single.
//
// Obviously this hit some sort of weird corner case in the Win7
// loader, but it's not important to the test.
if (OperatingSystem.IsWindows() &&
!PlatformDetection.IsWindows8xOrLater)
{
followup = null;
}
ReadMultiPfx(
pfxBytes,
pw,
first,
expectedOrder,
followup);
}
}
}
public void OneCert_TwoKeys_FirstWins(bool correctKeyFirst)
{
string pw = nameof(OneCert_TwoKeys_FirstWins);
// Build the PFX in the normal Windows style, except the private key doesn't match.
using (var cert = new X509Certificate2(TestData.PfxData, TestData.PfxDataPassword, s_exportableImportFlags))
using (RSA key = cert.GetRSAPrivateKey())
using (RSA unrelated = RSA.Create(key.KeySize))
{
Pkcs12Builder builder = new Pkcs12Builder();
Pkcs12SafeContents keyContents = new Pkcs12SafeContents();
Pkcs12SafeContents certContents = new Pkcs12SafeContents();
Pkcs12SafeBag keyBag;
Pkcs12SafeBag keyBag2;
Pkcs12SafeBag certBag = certContents.AddCertificate(cert);
if (correctKeyFirst)
{
keyBag = keyContents.AddShroudedKey(key, pw, s_windowsPbe);
keyBag2 = keyContents.AddShroudedKey(unrelated, pw, s_windowsPbe);
}
else
{
keyBag = keyContents.AddShroudedKey(unrelated, pw, s_windowsPbe);
keyBag2 = keyContents.AddShroudedKey(key, pw, s_windowsPbe);
}
keyBag.Attributes.Add(s_keyIdOne);
keyBag2.Attributes.Add(s_keyIdOne);
certBag.Attributes.Add(s_keyIdOne);
builder.AddSafeContentsUnencrypted(keyContents);
builder.AddSafeContentsEncrypted(certContents, pw, s_windowsPbe);
builder.SealWithoutIntegrity();
byte[] pfxBytes = builder.Encode();
// On macOS the cert will come back with HasPrivateKey being false when the
// incorrect key comes first
if (!correctKeyFirst && OperatingSystem.IsMacOS())
{
using (var publicCert = new X509Certificate2(cert.RawData))
{
ReadPfx(
pfxBytes,
pw,
publicCert);
}
return;
}
// The RSA "self-test" should pass when the correct key is first,
// and fail when the unrelated key is first.
Action <X509Certificate2> followup = CheckKeyConsistency;
if (!correctKeyFirst)
{
followup = CheckKeyConsistencyFails;
}
ReadPfx(
pfxBytes,
pw,
cert,
followup);
}
}