private static bool HasECDsaKeyUsage(X509Certificate2 certificate)
{
foreach (X509Extension extension in certificate.Extensions)
{
if (extension.Oid !.Value == Oids.KeyUsage)
{
X509KeyUsageExtension ext = (X509KeyUsageExtension)extension;
if ((ext.KeyUsages & X509KeyUsageFlags.KeyAgreement) == 0)
{
// If this does not have KeyAgreement flag present, it cannot be ECDH
// or ECMQV key as KeyAgreement is mandatory flag for ECDH or ECMQV (RFC 5480 Section 3).
//
// In that case, at this point, it is safe to assume it is ECDSA
return(true);
}
// Even if KeyAgreement was specified, if any of the signature uses was
// specified then ECDSA is a valid usage.
const X509KeyUsageFlags ecdsaFlags =
X509KeyUsageFlags.DigitalSignature |
X509KeyUsageFlags.NonRepudiation |
X509KeyUsageFlags.KeyCertSign |
X509KeyUsageFlags.CrlSign;
return((ext.KeyUsages & ecdsaFlags) != 0);
}
}
// If the key usage extension is not present in the certificate it is
// considered valid for all usages, so we can use it for ECDSA.
return(true);
}
public void ConstructorAsnEncodedData_BadAsn ()
{
AsnEncodedData aed = new AsnEncodedData ("1.2.3", new byte[0]);
X509KeyUsageExtension ku = new X509KeyUsageExtension (aed, true);
Assert.AreEqual (String.Empty, ku.Format (true), "Format(true)");
Assert.AreEqual (String.Empty, ku.Format (false), "Format(false)");
X509KeyUsageFlags kuf = ku.KeyUsages;
}
internal X509ExtensionCollection(MX.X509Certificate cert)
{
_list = new ArrayList(cert.Extensions.Count);
if (cert.Extensions.Count == 0)
{
return;
}
#if !MOONLIGHT
object[] parameters = new object [2];
#endif
foreach (MX.X509Extension ext in cert.Extensions)
{
bool critical = ext.Critical;
string oid = ext.Oid;
byte[] raw_data = null;
// extension data is embedded in an octet stream (4)
ASN1 value = ext.Value;
if ((value.Tag == 0x04) && (value.Count > 0))
{
raw_data = value [0].GetBytes();
}
X509Extension newt = null;
#if MOONLIGHT
// non-extensible
switch (oid)
{
case "2.5.29.14":
newt = new X509SubjectKeyIdentifierExtension(new AsnEncodedData(oid, raw_data), critical);
break;
case "2.5.29.15":
newt = new X509KeyUsageExtension(new AsnEncodedData(oid, raw_data), critical);
break;
case "2.5.29.19":
newt = new X509BasicConstraintsExtension(new AsnEncodedData(oid, raw_data), critical);
break;
case "2.5.29.37":
newt = new X509EnhancedKeyUsageExtension(new AsnEncodedData(oid, raw_data), critical);
break;
}
#else
parameters [0] = new AsnEncodedData(oid, raw_data);
parameters [1] = critical;
newt = (X509Extension)CryptoConfig.CreateFromName(oid, parameters);
#endif
if (newt == null)
{
// not registred in CryptoConfig, using default
newt = new X509Extension(oid, raw_data, critical);
}
_list.Add(newt);
}
}
public void ConstructorEmpty ()
{
X509KeyUsageExtension ku = new X509KeyUsageExtension ();
Assert.IsFalse (ku.Critical , "Critical");
Assert.IsNull (ku.RawData, "RawData");
Assert.AreEqual (oid, ku.Oid.Value, "Oid.Value");
Assert.AreEqual (fname, ku.Oid.FriendlyName, "Oid.FriendlyName");
Assert.AreEqual (String.Empty, ku.Format (true), "Format(true)");
Assert.AreEqual (String.Empty, ku.Format (false), "Format(false)");
}
public void ConstructorEmpty ()
{
X509KeyUsageExtension ku = new X509KeyUsageExtension ();
Assert.IsFalse (ku.Critical , "Critical");
Assert.IsNull (ku.RawData, "RawData");
Assert.AreEqual (oid, ku.Oid.Value, "Oid.Value");
// FIXME: Don't expect that FriendlyName is English. This test fails under non-English Windows.
//Assert.AreEqual (fname, ku.Oid.FriendlyName, "Oid.FriendlyName");
Assert.AreEqual (String.Empty, ku.Format (true), "Format(true)");
Assert.AreEqual (String.Empty, ku.Format (false), "Format(false)");
Assert.AreEqual (0, (int)ku.KeyUsages, "KeyUsages");
}
public void ConstructorAsnEncodedData ()
{
AsnEncodedData aed = new AsnEncodedData ("1.2.3", new byte[] { 0x03, 0x01, 0x00 });
X509KeyUsageExtension ku = new X509KeyUsageExtension (aed, true);
Assert.IsTrue (ku.Critical, "Critical");
Assert.AreEqual (3, ku.RawData.Length, "RawData"); // original Oid ignored
Assert.AreEqual (oid, ku.Oid.Value, "Oid.Value");
Assert.AreEqual (fname, ku.Oid.FriendlyName, "Oid.FriendlyName");
Assert.AreEqual ("Information Not Available", ku.Format (true), "Format(true)");
Assert.AreEqual ("Information Not Available", ku.Format (false), "Format(false)");
Assert.AreEqual (0, (int)ku.KeyUsages, "KeyUsages");
}
/// <summary>
/// Check if the certificate contains ECDsa key or ECDH / ECMQV key.
/// </summary>
/// <param name="certificate">Certificate object</param>
/// <returns>true if ECDsa key. False otherwise</returns>
private static bool IsECDsa(X509Certificate2 certificate)
{
string algName = certificate.PublicKey.Oid.FriendlyName;
string value = certificate.PublicKey.Oid.Value;
//At this point check OID. If it matches for ECC certs
//then go to extensions and find out difference between ECDSA and ECDH certs
if (value != X509Native.szOID_ECC_PUBLIC_KEY)
{
return(false);
}
else
{
//Following section is built based on RFC
//http://www.ietf.org/rfc/rfc5280.txt and
//http://www.rfc-archive.org/getrfc.php?rfc=5480. This RFC, section 3 describes when
// key can be ECDSA or ECDH or ECMQV.
foreach (X509Extension extension in certificate.Extensions)
{
//Check Key Usage OID value
if (extension.Oid.Value == "2.5.29.15")
{
X509KeyUsageExtension ext = (X509KeyUsageExtension)extension;
if (!(ext.KeyUsages.HasFlag(X509KeyUsageFlags.KeyAgreement)))
{
//If this does not have KeyAgreement flag present, it cannot be ECDH or ECMQV key as KeyAgreement
// is mandatory flag for ECDH or ECMQV. In that case, at this point, it is safe to assume it is ECDSA
return(true);
}
//If key has any of the following flag then it cannot be ECDH or ECMQV. Assume
//it is ECDSA.
if (ext.KeyUsages.HasFlag(X509KeyUsageFlags.DigitalSignature) ||
ext.KeyUsages.HasFlag(X509KeyUsageFlags.NonRepudiation) ||
ext.KeyUsages.HasFlag(X509KeyUsageFlags.KeyCertSign) ||
ext.KeyUsages.HasFlag(X509KeyUsageFlags.CrlSign))
{
return(true);
}
else
{
return(false);
}
}
}
}
//If key usage extension is not present in the certificate assume ECDSA
return(true);
}
internal string KeyUsageExtension(bool multiLine)
{
string result;
try
{
System.Security.Cryptography.X509Certificates.X509KeyUsageExtension x509KeyUsageExtension = new System.Security.Cryptography.X509Certificates.X509KeyUsageExtension(this, false);
result = x509KeyUsageExtension.ToString(multiLine);
}
catch
{
result = string.Empty;
}
return(result);
}
private void PrepareForNextCertificate(int n)
{
X509ChainElement x509ChainElement = this.elements[n];
X509Certificate2 certificate = x509ChainElement.Certificate;
this.working_issuer_name = certificate.SubjectName;
this.working_public_key = certificate.PublicKey.Key;
X509BasicConstraintsExtension x509BasicConstraintsExtension = (X509BasicConstraintsExtension)certificate.Extensions["2.5.29.19"];
if (x509BasicConstraintsExtension != null)
{
if (!x509BasicConstraintsExtension.CertificateAuthority)
{
x509ChainElement.StatusFlags |= X509ChainStatusFlags.InvalidBasicConstraints;
}
}
else if (certificate.Version >= 3)
{
x509ChainElement.StatusFlags |= X509ChainStatusFlags.InvalidBasicConstraints;
}
if (!this.IsSelfIssued(certificate))
{
if (this.max_path_length > 0)
{
this.max_path_length--;
}
else if (this.bce_restriction != null)
{
this.bce_restriction.StatusFlags |= X509ChainStatusFlags.InvalidBasicConstraints;
}
}
if (x509BasicConstraintsExtension != null && x509BasicConstraintsExtension.HasPathLengthConstraint && x509BasicConstraintsExtension.PathLengthConstraint < this.max_path_length)
{
this.max_path_length = x509BasicConstraintsExtension.PathLengthConstraint;
this.bce_restriction = x509ChainElement;
}
X509KeyUsageExtension x509KeyUsageExtension = (X509KeyUsageExtension)certificate.Extensions["2.5.29.15"];
if (x509KeyUsageExtension != null)
{
X509KeyUsageFlags x509KeyUsageFlags = X509KeyUsageFlags.KeyCertSign;
if ((x509KeyUsageExtension.KeyUsages & x509KeyUsageFlags) != x509KeyUsageFlags)
{
x509ChainElement.StatusFlags |= X509ChainStatusFlags.NotValidForUsage;
}
}
this.ProcessCertificateExtensions(x509ChainElement);
}
private X509ChainStatusFlags CheckRevocation(X509Certificate2 certificate, X509Certificate2 ca_cert, bool online)
{
X509KeyUsageExtension x509KeyUsageExtension = (X509KeyUsageExtension)ca_cert.Extensions["2.5.29.15"];
if (x509KeyUsageExtension != null)
{
X509KeyUsageFlags x509KeyUsageFlags = X509KeyUsageFlags.CrlSign;
if ((x509KeyUsageExtension.KeyUsages & x509KeyUsageFlags) != x509KeyUsageFlags)
{
return(X509ChainStatusFlags.RevocationStatusUnknown);
}
}
X509Crl x509Crl = this.FindCrl(ca_cert);
if (x509Crl != null || online)
{
}
if (x509Crl == null)
{
return(X509ChainStatusFlags.RevocationStatusUnknown);
}
if (!x509Crl.VerifySignature(ca_cert.PublicKey.Key))
{
return(X509ChainStatusFlags.RevocationStatusUnknown);
}
X509Crl.X509CrlEntry crlEntry = x509Crl.GetCrlEntry(certificate.MonoCertificate);
if (crlEntry != null)
{
if (!this.ProcessCrlEntryExtensions(crlEntry))
{
return(X509ChainStatusFlags.Revoked);
}
if (crlEntry.RevocationDate <= this.ChainPolicy.VerificationTime)
{
return(X509ChainStatusFlags.Revoked);
}
}
if (x509Crl.NextUpdate < this.ChainPolicy.VerificationTime)
{
return(X509ChainStatusFlags.RevocationStatusUnknown | X509ChainStatusFlags.OfflineRevocation);
}
if (!this.ProcessCrlExtensions(x509Crl))
{
return(X509ChainStatusFlags.RevocationStatusUnknown);
}
return(X509ChainStatusFlags.NoError);
}
internal X509ExtensionCollection (MX.X509Certificate cert)
{
_list = new ArrayList (cert.Extensions.Count);
if (cert.Extensions.Count == 0)
return;
#if !MOONLIGHT
object[] parameters = new object [2];
#endif
foreach (MX.X509Extension ext in cert.Extensions) {
bool critical = ext.Critical;
string oid = ext.Oid;
byte[] raw_data = null;
// extension data is embedded in an octet stream (4)
ASN1 value = ext.Value;
if ((value.Tag == 0x04) && (value.Count > 0))
raw_data = value [0].GetBytes ();
X509Extension newt = null;
#if MOONLIGHT || FULL_AOT_RUNTIME
// non-extensible
switch (oid) {
case "2.5.29.14":
newt = new X509SubjectKeyIdentifierExtension (new AsnEncodedData (oid, raw_data), critical);
break;
case "2.5.29.15":
newt = new X509KeyUsageExtension (new AsnEncodedData (oid, raw_data), critical);
break;
case "2.5.29.19":
newt = new X509BasicConstraintsExtension (new AsnEncodedData (oid, raw_data), critical);
break;
case "2.5.29.37":
newt = new X509EnhancedKeyUsageExtension (new AsnEncodedData (oid, raw_data), critical);
break;
}
#else
parameters [0] = new AsnEncodedData (oid, raw_data ?? Empty);
parameters [1] = critical;
newt = (X509Extension) CryptoConfig.CreateFromName (oid, parameters);
#endif
if (newt == null) {
// not registred in CryptoConfig, using default
newt = new X509Extension (oid, raw_data ?? Empty, critical);
}
_list.Add (newt);
}
}
public void WrongExtension_X509Extension ()
{
X509Extension ex = new X509Extension ("1.2.3", new byte [0], true);
X509KeyUsageExtension ku = new X509KeyUsageExtension (X509KeyUsageFlags.CrlSign, true);
ku.CopyFrom (ex);
Assert.IsTrue (ku.Critical, "Critical");
Assert.AreEqual (String.Empty, BitConverter.ToString (ku.RawData), "RawData");
Assert.AreEqual ("1.2.3", ku.Oid.Value, "Oid.Value");
Assert.IsNull (ku.Oid.FriendlyName, "Oid.FriendlyName");
}
public void ConstructorAsnEncodedData_BadAsnTag ()
{
AsnEncodedData aed = new AsnEncodedData ("1.2.3", new byte[] { 0x05, 0x00 });
X509KeyUsageExtension ku = new X509KeyUsageExtension (aed, true);
Assert.AreEqual ("0500", ku.Format (true), "Format(true)");
Assert.AreEqual ("0500", ku.Format (false), "Format(false)");
X509KeyUsageFlags kuf = ku.KeyUsages;
}
internal static X509Certificate2 SelectSignerCertificate () {
X509Store store = new X509Store();
store.Open(OpenFlags.ReadOnly | OpenFlags.OpenExistingOnly | OpenFlags.IncludeArchived);
X509Certificate2Collection certificates = new X509Certificate2Collection();
foreach (X509Certificate2 certificate in store.Certificates) {
if (certificate.HasPrivateKey && certificate.NotBefore <= DateTime.Now && certificate.NotAfter >= DateTime.Now) {
bool validUsages = true;
foreach (X509Extension extension in certificate.Extensions) {
if (String.Compare(extension.Oid.Value, CAPI.szOID_KEY_USAGE, StringComparison.OrdinalIgnoreCase) == 0) {
X509KeyUsageExtension keyUsage = new X509KeyUsageExtension();
keyUsage.CopyFrom(extension);
if ((keyUsage.KeyUsages & X509KeyUsageFlags.DigitalSignature) == 0 &&
(keyUsage.KeyUsages & X509KeyUsageFlags.NonRepudiation) == 0) {
validUsages = false;
}
break;
}
}
if (validUsages) {
certificates.Add(certificate);
}
}
}
if (certificates.Count < 1)
throw new CryptographicException(CAPI.CRYPT_E_SIGNER_NOT_FOUND);
certificates = X509Certificate2UI.SelectFromCollection(certificates, null, null, X509SelectionFlag.SingleSelection);
if (certificates.Count < 1)
throw new CryptographicException(CAPI.ERROR_CANCELLED);
Debug.Assert(certificates.Count == 1);
return certificates[0];
}
private static unsafe int VerifyCertificate (X509Certificate2 certificate,
X509Certificate2Collection extraStore) {
int dwErrorStatus;
int hr = X509Utils.VerifyCertificate(X509Utils.GetCertContext(certificate),
null,
null,
X509RevocationMode.Online,
X509RevocationFlag.ExcludeRoot,
DateTime.Now,
new TimeSpan(0, 0, 0),
extraStore,
new IntPtr(CAPI.CERT_CHAIN_POLICY_BASE),
new IntPtr(&dwErrorStatus));
if (hr != CAPI.S_OK)
return dwErrorStatus;
// Check key usages to make sure it is good for signing.
foreach (X509Extension extension in certificate.Extensions) {
if (String.Compare(extension.Oid.Value, CAPI.szOID_KEY_USAGE, StringComparison.OrdinalIgnoreCase) == 0) {
X509KeyUsageExtension keyUsage = new X509KeyUsageExtension();
keyUsage.CopyFrom(extension);
if ((keyUsage.KeyUsages & X509KeyUsageFlags.DigitalSignature) == 0 &&
(keyUsage.KeyUsages & X509KeyUsageFlags.NonRepudiation) == 0) {
hr = CAPI.CERT_E_WRONG_USAGE;
break;
}
}
}
return hr;
}
public void CopyFrom_Null ()
{
X509KeyUsageExtension eku = new X509KeyUsageExtension ();
eku.CopyFrom (null);
}
public X509KeyUsageExtensionWrapper(X509KeyUsageExtension extension)
: base(extension)
{
x509 = extension;
}
public void WrongExtension_X509KeyUsageExtension ()
{
X509KeyUsageExtension ku = new X509KeyUsageExtension ();
X509SubjectKeyIdentifierExtension ski = new X509SubjectKeyIdentifierExtension ();
ski.CopyFrom (ku);
}
internal static CmsRecipientCollection SelectRecipients(SubjectIdentifierType recipientIdentifierType)
{
X509Store store = new X509Store("AddressBook");
store.Open(OpenFlags.OpenExistingOnly);
X509Certificate2Collection certificates = new X509Certificate2Collection(store.Certificates);
X509Certificate2Enumerator enumerator = store.Certificates.GetEnumerator();
while (enumerator.MoveNext())
{
X509Certificate2 current = enumerator.Current;
if ((current.NotBefore <= DateTime.Now) && (current.NotAfter >= DateTime.Now))
{
bool flag = true;
X509ExtensionEnumerator enumerator2 = current.Extensions.GetEnumerator();
while (enumerator2.MoveNext())
{
X509Extension asnEncodedData = enumerator2.Current;
if (string.Compare(asnEncodedData.Oid.Value, "2.5.29.15", StringComparison.OrdinalIgnoreCase) == 0)
{
X509KeyUsageExtension extension2 = new X509KeyUsageExtension();
extension2.CopyFrom(asnEncodedData);
if (((extension2.KeyUsages & X509KeyUsageFlags.KeyEncipherment) == X509KeyUsageFlags.None) && ((extension2.KeyUsages & X509KeyUsageFlags.KeyAgreement) == X509KeyUsageFlags.None))
{
flag = false;
}
break;
}
}
if (flag)
{
certificates.Add(current);
}
}
}
if (certificates.Count < 1)
{
throw new CryptographicException(-2146889717);
}
X509Certificate2Collection certificates2 = X509Certificate2UI.SelectFromCollection(certificates, null, null, X509SelectionFlag.MultiSelection);
if (certificates2.Count < 1)
{
throw new CryptographicException(0x4c7);
}
return new CmsRecipientCollection(recipientIdentifierType, certificates2);
}
private X509KeyUsageExtension ValidateKeyUsage (X509KeyUsageFlags kuf, string rawdata)
{
X509KeyUsageExtension ku = new X509KeyUsageExtension (kuf, false);
Assert.IsFalse (ku.Critical, kuf.ToString () + ".Critical");
Assert.AreEqual (rawdata, BitConverter.ToString (ku.RawData), kuf.ToString () + ".RawData");
Assert.AreEqual (oid, ku.Oid.Value, kuf.ToString () + ".Oid.Value");
// FIXME: Don't expect that FriendlyName is English. This test fails under non-English Windows.
//Assert.AreEqual (fname, ku.Oid.FriendlyName, kuf.ToString () + ".Oid.FriendlyName");
Assert.AreEqual (kuf, ku.KeyUsages, kuf.ToString () + ".KeyUsages");
return ku;
}
// [ExpectedException (typeof (...))]
public void ConstructorKeyUsage_Invalid ()
{
X509KeyUsageFlags kuf = (X509KeyUsageFlags)Int32.MinValue;
X509KeyUsageExtension ku = new X509KeyUsageExtension (kuf, false);
Assert.AreEqual (0, (int)ku.KeyUsages, "KeyUsages");
Assert.AreEqual ("03-01-00", BitConverter.ToString (ku.RawData), "RawData");
// FIXME: Don't expect that FriendlyName is English. This test fails under non-English Windows.
//Assert.AreEqual ("Information Not Available", ku.Format (true), "Format(true)");
//Assert.AreEqual ("Information Not Available", ku.Format (false), "Format(false)");
}
public void WrongExtension_X509Extension_KeyUsages ()
{
X509Extension ex = new X509Extension ("1.2.3", new byte[0], true);
X509KeyUsageExtension ku = new X509KeyUsageExtension ();
ku.CopyFrom (ex);
Assert.AreEqual (0, ku.KeyUsages, "KeyUsages");
}
private static unsafe int VerifyCertificate(X509Certificate2 certificate, X509Certificate2Collection extraStore)
{
int num1;
int num2 = X509Utils.VerifyCertificate(X509Utils.GetCertContext(certificate), (OidCollection)null, (OidCollection)null, X509RevocationMode.Online, X509RevocationFlag.ExcludeRoot, DateTime.Now, new TimeSpan(0, 0, 0), extraStore, new IntPtr(1L), new IntPtr((void*)&num1));
if (num2 != 0)
return num1;
foreach (X509Extension x509Extension in certificate.Extensions)
{
if (string.Compare(x509Extension.Oid.Value, "2.5.29.15", StringComparison.OrdinalIgnoreCase) == 0)
{
X509KeyUsageExtension keyUsageExtension = new X509KeyUsageExtension();
keyUsageExtension.CopyFrom((AsnEncodedData)x509Extension);
if ((keyUsageExtension.KeyUsages & X509KeyUsageFlags.DigitalSignature) == X509KeyUsageFlags.None && (keyUsageExtension.KeyUsages & X509KeyUsageFlags.NonRepudiation) == X509KeyUsageFlags.None)
{
num2 = -2146762480;
break;
}
}
}
return num2;
}
public void WrongAsnEncodedData ()
{
AsnEncodedData aed = new AsnEncodedData (new byte[0]);
X509KeyUsageExtension ku = new X509KeyUsageExtension (X509KeyUsageFlags.CrlSign, true);
ku.CopyFrom (aed); // note: not the same behaviour than using the constructor!
}
private static bool CheckCertificateUsage(System.Security.Cryptography.X509Certificates.X509Certificate2 cert)
{
bool result;
try
{
if (cert.Version < 3)
{
result = true;
}
else
{
System.Security.Cryptography.X509Certificates.X509KeyUsageExtension x509KeyUsageExtension = (System.Security.Cryptography.X509Certificates.X509KeyUsageExtension)cert.Extensions["2.5.29.15"];
System.Security.Cryptography.X509Certificates.X509EnhancedKeyUsageExtension x509EnhancedKeyUsageExtension = (System.Security.Cryptography.X509Certificates.X509EnhancedKeyUsageExtension)cert.Extensions["2.5.29.37"];
if (x509KeyUsageExtension != null && x509EnhancedKeyUsageExtension != null)
{
if ((x509KeyUsageExtension.KeyUsages & ServicePointManager.ChainValidationHelper.s_flags) == System.Security.Cryptography.X509Certificates.X509KeyUsageFlags.None)
{
result = false;
}
else
{
result = (x509EnhancedKeyUsageExtension.EnhancedKeyUsages["1.3.6.1.5.5.7.3.1"] != null || x509EnhancedKeyUsageExtension.EnhancedKeyUsages["2.16.840.1.113730.4.1"] != null);
}
}
else if (x509KeyUsageExtension != null)
{
result = ((x509KeyUsageExtension.KeyUsages & ServicePointManager.ChainValidationHelper.s_flags) != System.Security.Cryptography.X509Certificates.X509KeyUsageFlags.None);
}
else if (x509EnhancedKeyUsageExtension != null)
{
result = (x509EnhancedKeyUsageExtension.EnhancedKeyUsages["1.3.6.1.5.5.7.3.1"] != null || x509EnhancedKeyUsageExtension.EnhancedKeyUsages["2.16.840.1.113730.4.1"] != null);
}
else
{
System.Security.Cryptography.X509Certificates.X509Extension x509Extension = cert.Extensions["2.16.840.1.113730.1.1"];
if (x509Extension != null)
{
string text = x509Extension.NetscapeCertType(false);
result = (text.IndexOf("SSL Server Authentication") != -1);
}
else
{
result = true;
}
}
}
}
catch (Exception arg)
{
Console.Error.WriteLine("ERROR processing certificate: {0}", arg);
Console.Error.WriteLine("Please, report this problem to the Mono team");
result = false;
}
return(result);
}
public void CopyFrom_Self ()
{
X509KeyUsageExtension ku = new X509KeyUsageExtension (X509KeyUsageFlags.CrlSign, true);
Assert.IsTrue (ku.Critical, "Critical");
byte[] raw = ku.RawData;
Assert.AreEqual ("03-02-01-02", BitConverter.ToString (raw), "RawData");
AsnEncodedData aed = new AsnEncodedData (raw);
X509KeyUsageExtension copy = new X509KeyUsageExtension (aed, false);
Assert.IsFalse (copy.Critical, "Critical");
Assert.AreEqual (4, copy.RawData.Length, "RawData"); // original Oid ignored
Assert.AreEqual (oid, copy.Oid.Value, "Oid.Value");
Assert.AreEqual (fname, copy.Oid.FriendlyName, "Oid.FriendlyName");
Assert.AreEqual (X509KeyUsageFlags.CrlSign, copy.KeyUsages, "KeyUsages");
}
internal string KeyUsageExtension (bool multiLine)
{
try {
X509KeyUsageExtension ku = new X509KeyUsageExtension (this, false);
return ku.ToString (multiLine);
}
catch {
return String.Empty;
}
}
[Category ("NotDotNet")] // MS bug reported as http://lab.msdn.microsoft.com/ProductFeedback/viewfeedback.aspx?feedbackid=34cdc5e9-c7f9-4f55-b390-288bfef6e44e
public void ConstructorEmpty_KeyUsage ()
{
X509KeyUsageExtension ku = new X509KeyUsageExtension ();
Assert.AreEqual (0, (int)ku.KeyUsages, "KeyUsages");
}
private X509ChainStatusFlags CheckRevocation(X509Certificate2 certificate, X509Certificate2 ca_cert, bool online)
{
// change this if/when we support OCSP
X509KeyUsageExtension kue = (ca_cert.Extensions["2.5.29.15"] as X509KeyUsageExtension);
if (kue != null)
{
// ... verify CrlSign is set
X509KeyUsageFlags success = X509KeyUsageFlags.CrlSign;
if ((kue.KeyUsages & success) != success)
{
// FIXME - we should try to find an alternative CA that has the CrlSign bit
return(X509ChainStatusFlags.RevocationStatusUnknown);
}
}
MX.X509Crl crl = FindCrl(ca_cert);
if ((crl == null) && online)
{
// FIXME - download and install new CRL
// then you get a second chance
// crl = FindCrl (ca_cert, ref valid, ref out_of_date);
// We need to get the subjectAltName and an URI from there (or use OCSP)
// X509KeyUsageExtension subjectAltName = (ca_cert.Extensions["2.5.29.17"] as X509KeyUsageExtension);
}
if (crl != null)
{
// validate the digital signature on the CRL using the CA public key
// note #1: we can't use X509Crl.VerifySignature(X509Certificate) because it duplicates
// checks and we loose the "why" of the failure
// note #2: we do this before other tests as an invalid signature could be a hacked CRL
// (so anything within can't be trusted)
if (!crl.VerifySignature(ca_cert.PublicKey.Key))
{
return(X509ChainStatusFlags.RevocationStatusUnknown);
}
MX.X509Crl.X509CrlEntry entry = crl.GetCrlEntry(certificate.MonoCertificate);
if (entry != null)
{
// We have an entry for this CRL that includes an unknown CRITICAL extension
// See [X.509 7.3] NOTE 4
if (!ProcessCrlEntryExtensions(entry))
{
return(X509ChainStatusFlags.Revoked);
}
// FIXME - a little more is involved
if (entry.RevocationDate <= ChainPolicy.VerificationTime)
{
return(X509ChainStatusFlags.Revoked);
}
}
// are we overdue for a CRL update ? if so we can't be sure of any certificate status
if (crl.NextUpdate < ChainPolicy.VerificationTime)
{
return(X509ChainStatusFlags.RevocationStatusUnknown | X509ChainStatusFlags.OfflineRevocation);
}
// we have a CRL that includes an unknown CRITICAL extension
// we put this check at the end so we do not "hide" any Revoked flags
if (!ProcessCrlExtensions(crl))
{
return(X509ChainStatusFlags.RevocationStatusUnknown);
}
}
else
{
return(X509ChainStatusFlags.RevocationStatusUnknown);
}
return(X509ChainStatusFlags.NoError);
}
internal static CmsRecipientCollection SelectRecipients (SubjectIdentifierType recipientIdentifierType) {
X509Store store = new X509Store("AddressBook");
store.Open(OpenFlags.ReadOnly | OpenFlags.OpenExistingOnly);
X509Certificate2Collection certificates = new X509Certificate2Collection(store.Certificates);
foreach (X509Certificate2 certificate in store.Certificates) {
if (certificate.NotBefore <= DateTime.Now && certificate.NotAfter >= DateTime.Now) {
bool validUsages = true;
foreach (X509Extension extension in certificate.Extensions) {
if (String.Compare(extension.Oid.Value, CAPI.szOID_KEY_USAGE, StringComparison.OrdinalIgnoreCase) == 0) {
X509KeyUsageExtension keyUsage = new X509KeyUsageExtension();
keyUsage.CopyFrom(extension);
if ((keyUsage.KeyUsages & X509KeyUsageFlags.KeyEncipherment) == 0 &&
(keyUsage.KeyUsages & X509KeyUsageFlags.KeyAgreement) == 0) {
validUsages = false;
}
break;
}
}
if (validUsages) {
certificates.Add(certificate);
}
}
}
if (certificates.Count < 1)
throw new CryptographicException(CAPI.CRYPT_E_RECIPIENT_NOT_FOUND);
X509Certificate2Collection recipients = X509Certificate2UI.SelectFromCollection(certificates, null, null, X509SelectionFlag.MultiSelection);
if (recipients.Count < 1)
throw new CryptographicException(CAPI.ERROR_CANCELLED);
return new CmsRecipientCollection(recipientIdentifierType, recipients);
}
public bool CheckSignature(X509Certificate2 certificate, bool verifySignatureOnly)
{
if (!this.CheckSignature(certificate.PublicKey.Key))
{
return false;
}
if (verifySignatureOnly)
{
SignedXmlDebugLog.LogVerificationResult(this, certificate, true);
return true;
}
X509ExtensionEnumerator enumerator = certificate.Extensions.GetEnumerator();
while (enumerator.MoveNext())
{
X509Extension current = enumerator.Current;
if (string.Compare(current.Oid.Value, "2.5.29.15", StringComparison.OrdinalIgnoreCase) == 0)
{
X509KeyUsageExtension keyUsages = new X509KeyUsageExtension();
keyUsages.CopyFrom(current);
SignedXmlDebugLog.LogVerifyKeyUsage(this, certificate, keyUsages);
if (((keyUsages.KeyUsages & X509KeyUsageFlags.DigitalSignature) != X509KeyUsageFlags.None) || ((keyUsages.KeyUsages & X509KeyUsageFlags.NonRepudiation) != X509KeyUsageFlags.None))
{
break;
}
SignedXmlDebugLog.LogVerificationFailure(this, SecurityResources.GetResourceString("Log_VerificationFailed_X509KeyUsage"));
return false;
}
}
X509Chain chain = new X509Chain();
chain.ChainPolicy.ExtraStore.AddRange(this.BuildBagOfCerts());
bool flag2 = chain.Build(certificate);
SignedXmlDebugLog.LogVerifyX509Chain(this, chain, certificate);
if (!flag2)
{
SignedXmlDebugLog.LogVerificationFailure(this, SecurityResources.GetResourceString("Log_VerificationFailed_X509Chain"));
return false;
}
SignedXmlDebugLog.LogVerificationResult(this, certificate, true);
return true;
}
/// <summary>
/// Check that the KeyUsageExtension is DigitalSignature.
/// </summary>
/// <param name="SOD"></param>
/// <param name="keyUsageStr"></param>
/// <returns></returns>
public static bool KeyUsageIsDigitalSignatureOnly(X509Certificate2 SOD)
{
bool keyUsageIsDigitalSignatureFound = false;
foreach (var extension in SOD.Extensions)
{
if (extension is System.Security.Cryptography.X509Certificates.X509KeyUsageExtension)
{
System.Security.Cryptography.X509Certificates.X509KeyUsageExtension keyUsage = extension as System.Security.Cryptography.X509Certificates.X509KeyUsageExtension;
if (string.Compare(keyUsage.KeyUsages.ToString().ToUpper(), "DIGITALSIGNATURE") != 0)
{
// KeyUsage found that is not DigitalSignature
return(false);
}
else
{
// DigitalSignature found....
if (!keyUsage.Critical)
{
// ....but not critical
return(false);
}
else
{
// ... and critical
keyUsageIsDigitalSignatureFound = true;
}
}
}
}
return(keyUsageIsDigitalSignatureFound);
}
internal static X509Certificate2 SelectSignerCertificate()
{
X509Store store = new X509Store();
store.Open(OpenFlags.IncludeArchived | OpenFlags.OpenExistingOnly);
X509Certificate2Collection certificates = new X509Certificate2Collection();
X509Certificate2Enumerator enumerator = store.Certificates.GetEnumerator();
while (enumerator.MoveNext())
{
X509Certificate2 current = enumerator.Current;
if ((current.HasPrivateKey && (current.NotBefore <= DateTime.Now)) && (current.NotAfter >= DateTime.Now))
{
bool flag = true;
X509ExtensionEnumerator enumerator2 = current.Extensions.GetEnumerator();
while (enumerator2.MoveNext())
{
X509Extension asnEncodedData = enumerator2.Current;
if (string.Compare(asnEncodedData.Oid.Value, "2.5.29.15", StringComparison.OrdinalIgnoreCase) == 0)
{
X509KeyUsageExtension extension2 = new X509KeyUsageExtension();
extension2.CopyFrom(asnEncodedData);
if (((extension2.KeyUsages & X509KeyUsageFlags.DigitalSignature) == X509KeyUsageFlags.None) && ((extension2.KeyUsages & X509KeyUsageFlags.NonRepudiation) == X509KeyUsageFlags.None))
{
flag = false;
}
break;
}
}
if (flag)
{
certificates.Add(current);
}
}
}
if (certificates.Count < 1)
{
throw new CryptographicException(-2146889714);
}
certificates = X509Certificate2UI.SelectFromCollection(certificates, null, null, X509SelectionFlag.SingleSelection);
if (certificates.Count < 1)
{
throw new CryptographicException(0x4c7);
}
return certificates[0];
}
public X509Certificate2Collection Find(X509FindType findType, object findValue, bool validOnly)
{
if (findValue == null)
{
throw new ArgumentNullException("findValue");
}
string text = string.Empty;
string text2 = string.Empty;
X509KeyUsageFlags x509KeyUsageFlags = X509KeyUsageFlags.None;
DateTime t = DateTime.MinValue;
switch (findType)
{
case X509FindType.FindByThumbprint:
case X509FindType.FindBySubjectName:
case X509FindType.FindBySubjectDistinguishedName:
case X509FindType.FindByIssuerName:
case X509FindType.FindByIssuerDistinguishedName:
case X509FindType.FindBySerialNumber:
case X509FindType.FindByTemplateName:
case X509FindType.FindBySubjectKeyIdentifier:
try
{
text = (string)findValue;
}
catch (Exception inner)
{
string text3 = Locale.GetText("Invalid find value type '{0}', expected '{1}'.", new object[]
{
findValue.GetType(),
"string"
});
throw new CryptographicException(text3, inner);
}
break;
case X509FindType.FindByTimeValid:
case X509FindType.FindByTimeNotYetValid:
case X509FindType.FindByTimeExpired:
try
{
t = (DateTime)findValue;
}
catch (Exception inner2)
{
string text4 = Locale.GetText("Invalid find value type '{0}', expected '{1}'.", new object[]
{
findValue.GetType(),
"X509DateTime"
});
throw new CryptographicException(text4, inner2);
}
break;
case X509FindType.FindByApplicationPolicy:
case X509FindType.FindByCertificatePolicy:
case X509FindType.FindByExtension:
try
{
text2 = (string)findValue;
}
catch (Exception inner3)
{
string text5 = Locale.GetText("Invalid find value type '{0}', expected '{1}'.", new object[]
{
findValue.GetType(),
"X509KeyUsageFlags"
});
throw new CryptographicException(text5, inner3);
}
try
{
CryptoConfig.EncodeOID(text2);
}
catch (CryptographicUnexpectedOperationException)
{
string text6 = Locale.GetText("Invalid OID value '{0}'.", new object[]
{
text2
});
throw new ArgumentException("findValue", text6);
}
break;
case X509FindType.FindByKeyUsage:
try
{
x509KeyUsageFlags = (X509KeyUsageFlags)((int)findValue);
}
catch (Exception inner4)
{
string text7 = Locale.GetText("Invalid find value type '{0}', expected '{1}'.", new object[]
{
findValue.GetType(),
"X509KeyUsageFlags"
});
throw new CryptographicException(text7, inner4);
}
break;
default:
{
string text8 = Locale.GetText("Invalid find type '{0}'.", new object[]
{
findType
});
throw new CryptographicException(text8);
}
}
CultureInfo invariantCulture = CultureInfo.InvariantCulture;
X509Certificate2Collection x509Certificate2Collection = new X509Certificate2Collection();
foreach (object obj in base.InnerList)
{
X509Certificate2 x509Certificate = (X509Certificate2)obj;
bool flag = false;
switch (findType)
{
case X509FindType.FindByThumbprint:
flag = (string.Compare(text, x509Certificate.Thumbprint, true, invariantCulture) == 0 || string.Compare(text, x509Certificate.GetCertHashString(), true, invariantCulture) == 0);
break;
case X509FindType.FindBySubjectName:
{
string nameInfo = x509Certificate.GetNameInfo(X509NameType.SimpleName, false);
flag = (nameInfo.IndexOf(text, StringComparison.InvariantCultureIgnoreCase) >= 0);
break;
}
case X509FindType.FindBySubjectDistinguishedName:
flag = (string.Compare(text, x509Certificate.Subject, true, invariantCulture) == 0);
break;
case X509FindType.FindByIssuerName:
{
string nameInfo2 = x509Certificate.GetNameInfo(X509NameType.SimpleName, true);
flag = (nameInfo2.IndexOf(text, StringComparison.InvariantCultureIgnoreCase) >= 0);
break;
}
case X509FindType.FindByIssuerDistinguishedName:
flag = (string.Compare(text, x509Certificate.Issuer, true, invariantCulture) == 0);
break;
case X509FindType.FindBySerialNumber:
flag = (string.Compare(text, x509Certificate.SerialNumber, true, invariantCulture) == 0);
break;
case X509FindType.FindByTimeValid:
flag = (t >= x509Certificate.NotBefore && t <= x509Certificate.NotAfter);
break;
case X509FindType.FindByTimeNotYetValid:
flag = (t < x509Certificate.NotBefore);
break;
case X509FindType.FindByTimeExpired:
flag = (t > x509Certificate.NotAfter);
break;
case X509FindType.FindByApplicationPolicy:
flag = (x509Certificate.Extensions.Count == 0);
break;
case X509FindType.FindByExtension:
flag = (x509Certificate.Extensions[text2] != null);
break;
case X509FindType.FindByKeyUsage:
{
X509KeyUsageExtension x509KeyUsageExtension = x509Certificate.Extensions["2.5.29.15"] as X509KeyUsageExtension;
flag = (x509KeyUsageExtension == null || (x509KeyUsageExtension.KeyUsages & x509KeyUsageFlags) == x509KeyUsageFlags);
break;
}
case X509FindType.FindBySubjectKeyIdentifier:
{
X509SubjectKeyIdentifierExtension x509SubjectKeyIdentifierExtension = x509Certificate.Extensions["2.5.29.14"] as X509SubjectKeyIdentifierExtension;
if (x509SubjectKeyIdentifierExtension != null)
{
flag = (string.Compare(text, x509SubjectKeyIdentifierExtension.SubjectKeyIdentifier, true, invariantCulture) == 0);
}
break;
}
}
if (flag)
{
if (validOnly)
{
try
{
if (x509Certificate.Verify())
{
x509Certificate2Collection.Add(x509Certificate);
}
}
catch
{
}
}
else
{
x509Certificate2Collection.Add(x509Certificate);
}
}
}
return(x509Certificate2Collection);
}
public void WrongExtension_X509KeyUsageExtension ()
{
X509KeyUsageExtension ku = new X509KeyUsageExtension ();
X509BasicConstraintsExtension bc = new X509BasicConstraintsExtension ();
bc.CopyFrom (ku);
}
public X509Certificate2Collection Find(X509FindType findType, object findValue, bool validOnly)
{
if (findValue == null)
{
throw new ArgumentNullException("findValue");
}
string str = String.Empty;
string oid = String.Empty;
X509KeyUsageFlags ku = X509KeyUsageFlags.None;
DateTime dt = DateTime.MinValue;
switch (findType)
{
case X509FindType.FindByThumbprint:
case X509FindType.FindBySubjectName:
case X509FindType.FindBySubjectDistinguishedName:
case X509FindType.FindByIssuerName:
case X509FindType.FindByIssuerDistinguishedName:
case X509FindType.FindBySerialNumber:
case X509FindType.FindByTemplateName:
case X509FindType.FindBySubjectKeyIdentifier:
try {
str = (string)findValue;
}
catch (Exception e) {
string msg = Locale.GetText("Invalid find value type '{0}', expected '{1}'.",
findValue.GetType(), "string");
throw new CryptographicException(msg, e);
}
break;
case X509FindType.FindByApplicationPolicy:
case X509FindType.FindByCertificatePolicy:
case X509FindType.FindByExtension:
try {
oid = (string)findValue;
}
catch (Exception e) {
string msg = Locale.GetText("Invalid find value type '{0}', expected '{1}'.",
findValue.GetType(), "X509KeyUsageFlags");
throw new CryptographicException(msg, e);
}
// OID validation
try {
CryptoConfig.EncodeOID(oid);
}
catch (CryptographicUnexpectedOperationException) {
string msg = Locale.GetText("Invalid OID value '{0}'.", oid);
throw new ArgumentException("findValue", msg);
}
break;
case X509FindType.FindByKeyUsage:
try {
ku = (X509KeyUsageFlags)findValue;
}
catch (Exception e) {
string msg = Locale.GetText("Invalid find value type '{0}', expected '{1}'.",
findValue.GetType(), "X509KeyUsageFlags");
throw new CryptographicException(msg, e);
}
break;
case X509FindType.FindByTimeValid:
case X509FindType.FindByTimeNotYetValid:
case X509FindType.FindByTimeExpired:
try {
dt = (DateTime)findValue;
}
catch (Exception e) {
string msg = Locale.GetText("Invalid find value type '{0}', expected '{1}'.",
findValue.GetType(), "X509DateTime");
throw new CryptographicException(msg, e);
}
break;
default:
{
string msg = Locale.GetText("Invalid find type '{0}'.", findType);
throw new CryptographicException(msg);
}
}
CultureInfo cinv = CultureInfo.InvariantCulture;
X509Certificate2Collection results = new X509Certificate2Collection();
foreach (X509Certificate2 x in InnerList)
{
bool value_match = false;
switch (findType)
{
case X509FindType.FindByThumbprint:
// works with Thumbprint, GetCertHashString in both normal (upper) and lower case
value_match = ((String.Compare(str, x.Thumbprint, true, cinv) == 0) ||
(String.Compare(str, x.GetCertHashString(), true, cinv) == 0));
break;
case X509FindType.FindBySubjectName:
string [] names = x.SubjectName.Format(true).Split(newline_split, StringSplitOptions.RemoveEmptyEntries);
foreach (string name in names)
{
int pos = name.IndexOf('=');
value_match = (name.IndexOf(str, pos, StringComparison.InvariantCultureIgnoreCase) >= 0);
if (value_match)
{
break;
}
}
break;
case X509FindType.FindBySubjectDistinguishedName:
value_match = (String.Compare(str, x.Subject, true, cinv) == 0);
break;
case X509FindType.FindByIssuerName:
string iname = x.GetNameInfo(X509NameType.SimpleName, true);
value_match = (iname.IndexOf(str, StringComparison.InvariantCultureIgnoreCase) >= 0);
break;
case X509FindType.FindByIssuerDistinguishedName:
value_match = (String.Compare(str, x.Issuer, true, cinv) == 0);
break;
case X509FindType.FindBySerialNumber:
value_match = (String.Compare(str, x.SerialNumber, true, cinv) == 0);
break;
case X509FindType.FindByTemplateName:
// TODO - find a valid test case
break;
case X509FindType.FindBySubjectKeyIdentifier:
value_match = (String.Compare(str, GetKeyIdentifier(x), true, cinv) == 0);
break;
case X509FindType.FindByApplicationPolicy:
// note: include when no extensions are present (even if v3)
value_match = (x.Extensions.Count == 0);
// TODO - find test case with extension
break;
case X509FindType.FindByCertificatePolicy:
// TODO - find test case with extension
break;
case X509FindType.FindByExtension:
value_match = (x.Extensions [oid] != null);
break;
case X509FindType.FindByKeyUsage:
X509KeyUsageExtension kue = (x.Extensions ["2.5.29.15"] as X509KeyUsageExtension);
if (kue == null)
{
// key doesn't have any hard coded limitations
// note: MS doesn't check for ExtendedKeyUsage
value_match = true;
}
else
{
value_match = ((kue.KeyUsages & ku) == ku);
}
break;
case X509FindType.FindByTimeValid:
value_match = ((dt >= x.NotBefore) && (dt <= x.NotAfter));
break;
case X509FindType.FindByTimeNotYetValid:
value_match = (dt < x.NotBefore);
break;
case X509FindType.FindByTimeExpired:
value_match = (dt > x.NotAfter);
break;
}
if (!value_match)
{
continue;
}
if (validOnly)
{
try {
if (x.Verify())
{
results.Add(x);
}
}
catch {
}
}
else
{
results.Add(x);
}
}
return(results);
}
public void ConstructorAsnEncodedData_Null ()
{
X509KeyUsageExtension ku = new X509KeyUsageExtension (null, true);
}
// CTL == Certificate Trust List / NOT SUPPORTED
// TODO - check for X509ChainStatusFlags.CtlNotTimeValid
// TODO - check for X509ChainStatusFlags.CtlNotSignatureValid
// TODO - check for X509ChainStatusFlags.CtlNotValidForUsage
private void PrepareForNextCertificate(int n)
{
X509ChainElement element = elements [n];
X509Certificate2 certificate = element.Certificate;
// TODO 6.1.4.a-b
// 6.1.4.c
working_issuer_name = certificate.SubjectName;
// 6.1.4.d-e - our key includes both the public key and it's parameters
working_public_key = certificate.PublicKey.Key;
// 6.1.4.f
// working_public_key_algorithm = certificate.PublicKey.Oid.Value;
// TODO 6.1.4.g-j
// 6.1.4.k - Verify that the certificate is a CA certificate
X509BasicConstraintsExtension bce = (certificate.Extensions["2.5.29.19"] as X509BasicConstraintsExtension);
if (bce != null)
{
if (!bce.CertificateAuthority)
{
element.StatusFlags |= X509ChainStatusFlags.InvalidBasicConstraints;
}
}
else if (certificate.Version >= 3)
{
// recent (v3+) CA certificates must include BCE
element.StatusFlags |= X509ChainStatusFlags.InvalidBasicConstraints;
}
// 6.1.4.l - if the certificate isn't self-issued...
if (!IsSelfIssued(certificate))
{
// ... verify that max_path_length > 0
if (max_path_length > 0)
{
max_path_length--;
}
else
{
// to match MS the reported status must be against the certificate
// with the BCE and not where the path is too long. It also means
// that this condition has to be reported only once
if (bce_restriction != null)
{
bce_restriction.StatusFlags |= X509ChainStatusFlags.InvalidBasicConstraints;
}
}
}
// 6.1.4.m - if pathLengthConstraint is present...
if ((bce != null) && (bce.HasPathLengthConstraint))
{
// ... and is less that max_path_length, set max_path_length to it's value
if (bce.PathLengthConstraint < max_path_length)
{
max_path_length = bce.PathLengthConstraint;
bce_restriction = element;
}
}
// 6.1.4.n - if key usage extension is present...
X509KeyUsageExtension kue = (certificate.Extensions["2.5.29.15"] as X509KeyUsageExtension);
if (kue != null)
{
// ... verify keyCertSign is set
X509KeyUsageFlags success = X509KeyUsageFlags.KeyCertSign;
if ((kue.KeyUsages & success) != success)
{
element.StatusFlags |= X509ChainStatusFlags.NotValidForUsage;
}
}
// 6.1.4.o - recognize and process other critical extension present in the certificate
ProcessCertificateExtensions(element);
}
// [ExpectedException (typeof (...))]
public void ConstructorKeyUsage_Invalid ()
{
X509KeyUsageFlags kuf = (X509KeyUsageFlags)Int32.MinValue;
X509KeyUsageExtension ku = new X509KeyUsageExtension (kuf, false);
Assert.AreEqual (0, (int)ku.KeyUsages, "KeyUsages");
Assert.AreEqual ("03-01-00", BitConverter.ToString (ku.RawData), "RawData");
Assert.AreEqual ("Information Not Available", ku.Format (true), "Format(true)");
Assert.AreEqual ("Information Not Available", ku.Format (false), "Format(false)");
}
private static unsafe int VerifyCertificate(X509Certificate2 certificate, X509Certificate2Collection extraStore)
{
int num;
int num2 = System.Security.Cryptography.X509Certificates.X509Utils.VerifyCertificate(System.Security.Cryptography.X509Certificates.X509Utils.GetCertContext(certificate), null, null, X509RevocationMode.Online, X509RevocationFlag.ExcludeRoot, DateTime.Now, new TimeSpan(0, 0, 0), extraStore, new IntPtr(1L), new IntPtr((void*) &num));
if (num2 != 0)
{
return num;
}
X509ExtensionEnumerator enumerator = certificate.Extensions.GetEnumerator();
while (enumerator.MoveNext())
{
X509Extension current = enumerator.Current;
if (string.Compare(current.Oid.Value, "2.5.29.15", StringComparison.OrdinalIgnoreCase) == 0)
{
X509KeyUsageExtension extension2 = new X509KeyUsageExtension();
extension2.CopyFrom(current);
if (((extension2.KeyUsages & X509KeyUsageFlags.DigitalSignature) == X509KeyUsageFlags.None) && ((extension2.KeyUsages & X509KeyUsageFlags.NonRepudiation) == X509KeyUsageFlags.None))
{
return -2146762480;
}
}
}
return num2;
}
private X509KeyUsageExtension ValidateKeyUsage (X509KeyUsageFlags kuf, string rawdata)
{
X509KeyUsageExtension ku = new X509KeyUsageExtension (kuf, false);
Assert.IsFalse (ku.Critical, kuf.ToString () + ".Critical");
Assert.AreEqual (rawdata, BitConverter.ToString (ku.RawData), kuf.ToString () + ".RawData");
Assert.AreEqual (oid, ku.Oid.Value, kuf.ToString () + ".Oid.Value");
Assert.AreEqual (fname, ku.Oid.FriendlyName, kuf.ToString () + ".Oid.FriendlyName");
Assert.AreEqual (kuf, ku.KeyUsages, kuf.ToString () + ".KeyUsages");
return ku;
}
public void WrongExtension_X509EnhancedKeyUsageExtension ()
{
X509EnhancedKeyUsageExtension eku = new X509EnhancedKeyUsageExtension ();
X509KeyUsageExtension ku = new X509KeyUsageExtension ();
ku.CopyFrom (eku);
}
/// <summary>
/// Applies the basic constrains and key usages to the underlying certificate builder
/// before the certificate is signed.
/// </summary>
void PrepareSigning()
{
// Set the signing hashing function
_builder.Hash = "SHA256";
// Clear all extensions created during the previous preparation
_builder.Extensions.Clear();
#region Subject
if (SubjectAlternativeNames != null && SubjectAlternativeNames.Count > 0)
{
var dnsNameList = new List <string>();
var ipList = new List <string>();
foreach (var item in SubjectAlternativeNames)
{
IPAddress ipAddress;
if (IPAddress.TryParse(item, out ipAddress))
{
ipList.Add(item);
}
else
{
dnsNameList.Add(item);
}
}
var extension = new SubjectAltNameExtension(null, dnsNameList.ToArray(), ipList.ToArray(), null);
_builder.Extensions.Add(extension);
}
#endregion
#region Serial number
{
var serialNumber = _serialNumber == null ? null : (byte[])_serialNumber.Clone();
if (serialNumber == null)
{
serialNumber = Guid.NewGuid().ToByteArray();
}
/* // The serial number is correctly set and must NOT be reversed
* // Convert the serial number to big endian format
* Array.Reverse(serialNumber);
*/
_builder.SerialNumber = serialNumber;
}
#endregion
#region Basic key usages
var keyUsages = KeyUsages;
if (IsCertificateAuthority)
{
// Indicate that the public key of the certificate can be used to validate the signatures of
// other certificates
keyUsages |= BasicKeyUsages.KeyCertSign;
var extension = new BasicConstraintsExtension()
{
CertificateAuthority = true,
PathLenConstraint = CertificateAuthorityPathLength,
// This extension must be critical
Critical = true,
};
_builder.Extensions.Add(extension);
}
else
{
keyUsages &= ~BasicKeyUsages.KeyCertSign;
}
if (keyUsages != BasicKeyUsages.None)
{
#if MONO_BUG
// There was a bug in the Mono implementation of the KeyUsageExtension
// which is still NOT fixed
var buffer = new System.Security.Cryptography.X509Certificates.X509KeyUsageExtension(
(System.Security.Cryptography.X509Certificates.X509KeyUsageFlags)keyUsages,
false
).RawData;
var asn = new ASN1(0x30, buffer);
asn.Add(ASN1Convert.FromOid("2.5.29.15"));
asn.Add(new ASN1(4, buffer));
_builder.Extensions.Add(new X509Extension(asn)
{
Critical = KeyUsagesCritical
});
#else
// This code should be used once the bug is fixed
var extension = new KeyUsageExtension()
{
KeyUsage = (KeyUsages)keyUsages,
Critical = KeyUsagesCritical,
};
_builder.Extensions.Add(extension);
#endif
}
#endregion
#region Extended key usage
if (ExtendedKeyUsages != null && ExtendedKeyUsages.Count > 0)
{
var extension = new ExtendedKeyUsageExtension();
extension.Critical = ExtendedKeyUsagesCritical;
foreach (var item in ExtendedKeyUsages)
{
// Avoid dupliated key usages
if (false == extension.KeyPurpose.Contains(item))
{
extension.KeyPurpose.Add(item);
}
}
_builder.Extensions.Add(extension);
}
#endregion
#region Custom extensions
if (_extensions != null)
{
_builder.Extensions.AddRange(_extensions);
}
#endregion
}