/// <summary>
/// Initializes a new instance of the SecurityOptions class.
/// </summary>
/// <param name="protocol">One of the <see cref="SecureProtocol"/> values.</param>
/// <param name="cert">A <see cref="Certificate"/> instance.</param>
/// <param name="entity">One of the <see cref="ConnectionEnd"/> values.</param>
/// <param name="verifyType">One of the <see cref="CredentialVerification"/> values.</param>
/// <param name="verifier">The <see cref="CertVerifyEventHandler"/> delegate.</param>
/// <param name="commonName">The common name of the remote computer. This is usually a domain name.</param>
/// <param name="flags">A bitwise combination of the <see cref="SecurityFlags"/> values.</param>
/// <param name="allowed">A bitwise combination of the <see cref="SslAlgorithms"/> values.</param>
/// <param name="requestHandler">The <see cref="CertRequestEventHandler"/> delegate.</param>
public SecurityOptions(SecureProtocol protocol, Certificate cert, ConnectionEnd entity, CredentialVerification verifyType, CertVerifyEventHandler verifier, string commonName, SecurityFlags flags, SslAlgorithms allowed, CertRequestEventHandler requestHandler) {
this.Protocol = protocol;
this.Certificate = cert;
this.Entity = entity;
this.VerificationType = verifyType;
this.Verifier = verifier;
this.CommonName = commonName;
this.Flags = flags;
this.AllowedAlgorithms = allowed;
this.RequestHandler = requestHandler;
}
public void AddHttpsBinding( IPAddress address,
int port,
SecureProtocol protocol,
Certificate cert )
{
SecurityOptions ops = new SecurityOptions( protocol, cert, ConnectionEnd.Server );
AdkSocketBinding listener = this.CreateHttpsListener( ops );
listener.HostAddress = address;
listener.Port = port;
this.AddListener(listener);
}
/// <summary>
/// Initializes a new <see cref="CertificateChain"/> instance from a <see cref="Certificate"/>.
/// </summary>
/// <param name="cert">The certificate for which a chain is being built.</param>
/// <param name="additional">Any additional store to be searched for supporting certificates and CTLs.</param>
/// <param name="options">Additional certificate chain options.</param>
/// <remarks><paramref name="cert"/> will always be the end certificate.</remarks>
/// <exception cref="ArgumentNullException"><paramref name="cert"/> is a null reference (<b>Nothing</b> in Visual Basic).</exception>
/// <exception cref="CertificateException">An error occurs while building the certificate chain.</exception>
public CertificateChain(Certificate cert, CertificateStore additional, CertificateChainOptions options) {
if (cert == null)
throw new ArgumentNullException();
IntPtr addstore = additional == null ? IntPtr.Zero : additional.Handle;
ChainParameters para = new ChainParameters();
para.cbSize = Marshal.SizeOf(typeof(ChainParameters));
para.RequestedUsagecUsageIdentifier = 0;
para.RequestedUsagedwType = 0;
para.RequestedUsagergpszUsageIdentifier = IntPtr.Zero;
if (SspiProvider.CertGetCertificateChain(IntPtr.Zero, cert.Handle, IntPtr.Zero, addstore, ref para, (int)options, IntPtr.Zero, ref m_Handle) == 0)
throw new CertificateException("Unable to find the certificate chain.");
m_Certificate = cert;
}
protected byte[] GetCertificateList(Certificate certificate) {
Certificate[] certs = certificate.GetCertificateChain().GetCertificates();
byte[][] cert_bytes = new byte[certs.Length][];
int size = 0;
for(int i = 0; i < certs.Length; i++) {
cert_bytes[i] = certs[i].ToCerBuffer();
size += cert_bytes[i].Length + 3;
}
MemoryStream ret = new MemoryStream(size + 3 * certs.Length + 3);
// write length of certificate list
ret.WriteByte((byte)(size / 65536));
ret.WriteByte((byte)((size % 65536) / 256));
ret.WriteByte((byte)(size % 256));
for(int i = 0; i < cert_bytes.Length; i++) {
// write the length of the certificate
size = cert_bytes[i].Length;
ret.WriteByte((byte)(size / 65536)); // write length of certificates
ret.WriteByte((byte)((size % 65536) / 256));
ret.WriteByte((byte)(size % 256));
// write the certificate
ret.Write(cert_bytes[i], 0, size);
}
return ret.ToArray();
}
private void stream_OnCertVerify(SecureSocket sock, Certificate cert, CertificateChain chain, VerifyEventArgs e)
{
isSecurityChanging = false;
raiseCertificateVerifiedEvent(EventArgs.Empty);
}
private void verifyLevel2Authentication( SecureSocket socket,
Certificate cert,
CertificateChain chain,
VerifyEventArgs e
)
{
// Verify level 1 first
verifyLevel1Authentication( socket, cert, chain, e );
if ( !e.Valid )
{
return;
}
CertificateStatus certStatus =
chain.VerifyChain( null, AuthType.Client, VerificationFlags.IgnoreInvalidName );
if ( certStatus != CertificateStatus.ValidCertificate )
{
if ( (Adk.Debug & AdkDebugFlags.Messaging_Detailed) != 0 )
{
log.Warn
( "Client Certificate is not trusted and fails SIF Level 2 Authentication: " +
certStatus.ToString() );
}
e.Valid = false;
}
else
{
e.Valid = true;
}
}
/// <summary>
/// Compares two <see cref="Certificate"/> objects for equality.
/// </summary>
/// <param name="other">A Certificate object to compare to the current object.</param>
/// <returns><b>true</b> if the current Certificate object is equal to the object specified by <paramref name="other"/>; otherwise, <b>false</b>.</returns>
public virtual bool Equals(Certificate other)
{
if (other == null)
return false;
return SspiProvider.CertCompareCertificate(SecurityConstants.X509_ASN_ENCODING | SecurityConstants.PKCS_7_ASN_ENCODING, m_Context.pCertInfo, other.m_Context.pCertInfo) != 0;
}
protected SslHandshakeStatus ProcessCertificate(HandshakeMessage message, bool client)
{
if (client) {
if (m_State != HandshakeType.ServerHello)
throw new SslException(AlertDescription.UnexpectedMessage, "Certificate message must be preceded by a ServerHello message.");
} else { // server
if (m_State != HandshakeType.ClientHello)
throw new SslException(AlertDescription.UnexpectedMessage, "Certificate message must be preceded by a ClientHello message.");
}
UpdateHashes(message, HashUpdate.All); // input message
Certificate[] certs = null;
try {
certs = ParseCertificateList(message.fragment);
if (certs.Length == 0) {
if (!m_MutualAuthentication)
return new SslHandshakeStatus(SslStatus.MessageIncomplete, null);
}
} catch (SslException t) {
throw t;
} catch (Exception f) {
throw new SslException(f, AlertDescription.InternalError, "The Certificate message is invalid.");
}
CertificateChain chain = null;
m_RemoteCertificate = null;
if (certs.Length != 0) {
m_RemoteCertificate = certs[0];
if (m_RemoteCertificate.GetPublicKeyLength() < 512) {
throw new SslException(AlertDescription.HandshakeFailure, "The pulic key should be at least 512 bits.");
}
CertificateStore cs = new CertificateStore(certs);
for(int i = 0; i < certs.Length; i++) {
certs[i].Store = cs;
}
chain = new CertificateChain(m_RemoteCertificate, cs);
}
VerifyChain(chain, client);
return new SslHandshakeStatus(SslStatus.MessageIncomplete, null);
}
/// <summary>
/// Initializes a new <see cref="CertificateChain"/> instance from a <see cref="Certificate"/>.
/// </summary>
/// <param name="cert">The certificate for which a chain is being built.</param>
/// <remarks><paramref name="cert"/> will always be the end certificate.</remarks>
/// <exception cref="ArgumentNullException"><paramref name="cert"/> is a null reference (<b>Nothing</b> in Visual Basic).</exception>
/// <exception cref="CertificateException">An error occurs while building the certificate chain.</exception>
public CertificateChain(Certificate cert) : this(cert, null) {}
/// <summary>
/// Initializes a new instance of the SecurityOptions class.
/// </summary>
/// <param name="protocol">One of the <see cref="SecureProtocol"/> values.</param>
/// <param name="cert">A <see cref="Certificate"/> instance.</param>
/// <param name="entity">One of the <see cref="ConnectionEnd"/> values.</param>
/// <remarks>
/// All other members of the structure will be instantiated with default values.
/// </remarks>
public SecurityOptions(SecureProtocol protocol, Certificate cert, ConnectionEnd entity) : this(protocol, cert, entity, CredentialVerification.Auto, null, null, SecurityFlags.Default, SslAlgorithms.ALL, null) {}
private int TestConstructors()
{
Certificate c;
try {
c = new Certificate(null);
AddError("C-TC1");
} catch (ArgumentNullException) {
} catch {
AddError("C-TC2");
}
try {
c = new Certificate(IntPtr.Zero);
AddError("C-TC3");
} catch (ArgumentException) {
} catch {
AddError("C-TC4");
}
try {
c = new Certificate(IntPtr.Zero, true);
AddError("C-TC5");
} catch (ArgumentException) {
} catch {
AddError("C-TC6");
}
try {
c = new Certificate(IntPtr.Zero, false);
AddError("C-TC7");
} catch (ArgumentException) {
} catch {
AddError("C-TC8");
}
try {
Certificate c2 = null;
try {
c2 = CertificateStore.CreateFromCerFile(@"certs\server.der.cer").FindCertificateByUsage(new string[] {"1.3.6.1.5.5.7.3.1"});
} catch {
AddWarning("C-W-TC1");
}
if (c2 != null) {
c = new Certificate(c2.Handle, true);
if (!c.Equals(c2))
AddError("C-TC9");
}
} catch {
AddError("C-TC10");
}
try {
Certificate c2 = null;
try {
c2 = CertificateStore.CreateFromCerFile(@"certs\server.der.cer").FindCertificateByUsage(new string[] {"1.3.6.1.5.5.7.3.1"});
} catch {
AddWarning("C-W-TC2");
}
if (c2 != null) {
c = new Certificate(c2);
if (!c.Equals(c2))
AddError("C-TC11");
}
} catch {
AddError("C-TC12");
}
return 12;
}
/// <summary>
/// Initializes a new <see cref="RequestEventArgs"/> instance.
/// </summary>
/// <param name="cert">A <see cref="Certificate"/> instance.</param>
public RequestEventArgs(Certificate cert) {
m_Certificate = cert;
}
protected byte[] GetDistinguishedName(Certificate c) {
CertificateInfo info = c.GetCertificateInfo();
byte[] ret = new byte[info.SubjectcbData];
Marshal.Copy(info.SubjectpbData, ret, 0, ret.Length);
return ret;
}
private void CheckClientCertAtServer(SecureSocket socket, Certificate clientCertificate, CertificateChain allClientCertificates,
VerifyEventArgs args) {
Debug.WriteLine("check the client certificate event");
if (allClientCertificates != null) {
args.Valid = m_serverAuth.IsValidClientCertificate(clientCertificate,
allClientCertificates, ((IPEndPoint)socket.RemoteEndPoint).Address);
} else {
args.Valid = !((m_requiredOptions & SecurityAssociationOptions.EstablishTrustInClient) > 0);
}
}
private void CheckServerCertAtClient(SecureSocket socket, Certificate cert, CertificateChain chain, VerifyEventArgs args) {
Debug.WriteLine("check the server certificate event");
args.Valid = m_clientAuth.IsValidServerCertificate(cert, chain, ((IPEndPoint)socket.RemoteEndPoint).Address);
}
public SecurityOptions(SecureProtocol protocol, ExtensionType[] extensions, Certificate cert,
IEnumerable<string> knownProtocols, ConnectionEnd entity)
: this(protocol, extensions, cert, entity, knownProtocols, CredentialVerification.Auto, null, null,
SecurityFlags.Default, SslAlgorithms.ALL, null)
{
}
public SecurityOptions(SecureProtocol protocol, ExtensionType[] extensions, Certificate cert,
ConnectionEnd entity, IEnumerable<string> knownProtocols,
CredentialVerification verifyType, CertVerifyEventHandler verifier,
string commonName, SecurityFlags flags, SslAlgorithms allowed,
CertRequestEventHandler requestHandler)
{
this.Protocol = protocol;
this.Certificate = cert;
this.Entity = entity;
this.VerificationType = verifyType;
this.Verifier = verifier;
this.CommonName = commonName;
this.Flags = flags;
this.AllowedAlgorithms = allowed;
this.RequestHandler = requestHandler;
this.KnownProtocols = knownProtocols;
this.Extensions = extensions;
this.ExtensionList = FormExtsList(extensions);
}
private void verifyLevel3Authentication( SecureSocket socket,
Certificate cert,
CertificateChain chain,
VerifyEventArgs e
)
{
try
{
// Verify level 2 first
verifyLevel2Authentication( socket, cert, chain, e );
if ( !e.Valid )
{
return;
}
// Verify that the host name or IP matches the subject on the certificate
// ( Level3 authentication )
// First, get the "CN=" name from the certificate
string commonName = null;
DistinguishedName certificateName = cert.GetDistinguishedName();
for ( int a = 0; a < certificateName.Count; a++ )
{
NameAttribute part = certificateName[a];
if ( part.ObjectID == OID_CN )
{
commonName = part.Value;
break;
}
}
if ( commonName == null )
{
if ( (Adk.Debug & AdkDebugFlags.Messaging_Detailed) != 0 )
{
log.Warn
( "Client Certificate fails SIF Level 3 Authentication: common name attribute not found." );
}
e.Valid = false;
return;
}
if( String.Compare( commonName, "localhost", true ) == 0 )
{
commonName = "127.0.0.1";
}
// Does it match the IP Address?
IPEndPoint remoteEndPoint = (IPEndPoint) socket.RemoteEndPoint;
if ( remoteEndPoint.Address.ToString() == commonName )
{
e.Valid = true;
return;
}
// Does it match the common name of the client machine?
IPHostEntry entry = GetHostByAddress( remoteEndPoint.Address );
if ( entry == null )
{
if ( (Adk.Debug & AdkDebugFlags.Messaging_Detailed) != 0 )
{
log.Warn
( "Client Certificate fails SIF Level 3 Authentication: Host Name not found for Address " +
remoteEndPoint.Address.ToString() );
}
e.Valid = false;
return;
}
if ( string.Compare( commonName, entry.HostName, true ) == 0 )
{
e.Valid = true;
return;
}
// No match was found
e.Valid = false;
if ( (Adk.Debug & AdkDebugFlags.Messaging_Detailed) != 0 )
{
log.Warn
( "Client Certificate fails SIF Level 3 Authentication: Certificate Common Name=" +
commonName + ". Does not match client IP / Host: " +
remoteEndPoint.Address.ToString() + " / " + socket.CommonName );
}
}
catch ( Exception ex )
{
if ( (Adk.Debug & AdkDebugFlags.Messaging_Detailed) != 0 )
{
log.Warn
( "Client Certificate fails SIF Level 3 Authentication: " + ex.Message, ex );
}
e.Valid = false;
}
}
private int CheckServerCertBasicProps(Certificate c, bool clone)
{
byte[] SHA1Hash = new byte[] {0xE1, 0x4D, 0x2F, 0x99, 0x4E, 0x31, 0xA3, 0x2E, 0x5E, 0xD6, 0x83, 0x0A, 0x87, 0x59, 0x6F, 0x5E, 0x60, 0x5F, 0x33, 0x89};
byte[] MD5Hash = new byte[] {0xAE, 0x8B, 0xA3, 0x7A, 0xF1, 0x1C, 0x33, 0x86, 0xFD, 0xCF, 0xC5, 0x23, 0xFF, 0x28, 0x2C, 0x6D};
byte[] HashCode = new byte[] {0xE1, 0x4D, 0x2F, 0x99};
byte[] Serial = new byte[] {0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD9, 0x72, 0xD2, 0x61};
byte[] RawData = new byte[] {0x30, 0x82, 0x05, 0xF4, 0x30, 0x82, 0x03, 0xDC, 0xA0, 0x03, 0x02, 0x01, 0x02, 0x02, 0x0A, 0x61, 0xD2, 0x72, 0xD9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x30, 0x0D, 0x06, 0x09, 0x2A, 0x86, 0x48, 0x86, 0xF7, 0x0D, 0x01, 0x01, 0x05, 0x05, 0x00,0x30, 0x2D, 0x31, 0x2B, 0x30, 0x29, 0x06, 0x03, 0x55, 0x04, 0x03, 0x13, 0x22, 0x4D, 0x65, 0x6E, 0x74, 0x61, 0x6C, 0x69, 0x73, 0x2E, 0x6F, 0x72, 0x67, 0x20, 0x43, 0x65, 0x72, 0x74, 0x69, 0x66, 0x69, 0x63, 0x61, 0x74, 0x65, 0x20, 0x41, 0x75,0x74, 0x68, 0x6F, 0x72, 0x69, 0x74, 0x79, 0x30, 0x1E, 0x17, 0x0D, 0x30, 0x32, 0x31, 0x32, 0x30, 0x39, 0x31, 0x39, 0x34, 0x39, 0x35, 0x36, 0x5A, 0x17, 0x0D, 0x30, 0x33, 0x31, 0x32, 0x30, 0x39, 0x31, 0x39, 0x35, 0x39, 0x35, 0x36, 0x5A, 0x30,0x81, 0xA9, 0x31, 0x0B, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06, 0x13, 0x02, 0x42, 0x45, 0x31, 0x10, 0x30, 0x0E, 0x06, 0x03, 0x55, 0x04, 0x08, 0x13, 0x07, 0x42, 0x72, 0x61, 0x62, 0x61, 0x6E, 0x74, 0x31, 0x0F, 0x30, 0x0D, 0x06, 0x03, 0x55,0x04, 0x07, 0x13, 0x06, 0x4C, 0x65, 0x75, 0x76, 0x65, 0x6E, 0x31, 0x15, 0x30, 0x13, 0x06, 0x03, 0x55, 0x04, 0x0A, 0x13, 0x0C, 0x54, 0x68, 0x65, 0x20, 0x4B, 0x50, 0x44, 0x2D, 0x54, 0x65, 0x61, 0x6D, 0x31, 0x1D, 0x30, 0x1B, 0x06, 0x03, 0x55,0x04, 0x0B, 0x13, 0x14, 0x53, 0x6F, 0x66, 0x74, 0x77, 0x61, 0x72, 0x65, 0x20, 0x44, 0x65, 0x76, 0x65, 0x6C, 0x6F, 0x70, 0x6D, 0x65, 0x6E, 0x74, 0x31, 0x1A, 0x30, 0x18, 0x06, 0x03, 0x55, 0x04, 0x03, 0x13, 0x11, 0x4D, 0x65, 0x6E, 0x74, 0x61,0x6C, 0x69, 0x73, 0x2E, 0x6F, 0x72, 0x67, 0x20, 0x54, 0x65, 0x61, 0x6D, 0x31, 0x25, 0x30, 0x23, 0x06, 0x09, 0x2A, 0x86, 0x48, 0x86, 0xF7, 0x0D, 0x01, 0x09, 0x01, 0x16, 0x16, 0x77, 0x65, 0x62, 0x6D, 0x61, 0x73, 0x74, 0x65, 0x72, 0x40, 0x6D,0x65, 0x6E, 0x74, 0x61, 0x6C, 0x69, 0x73, 0x2E, 0x6F, 0x72, 0x67, 0x30, 0x81, 0x9F, 0x30, 0x0D, 0x06, 0x09, 0x2A, 0x86, 0x48, 0x86, 0xF7, 0x0D, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x81, 0x8D, 0x00, 0x30, 0x81, 0x89, 0x02, 0x81, 0x81, 0x00,0xBC, 0x7B, 0x73, 0xD8, 0xF2, 0xA4, 0x8B, 0x17, 0x68, 0x4E, 0x49, 0xA1, 0x42, 0x52, 0x52, 0xFD, 0x1D,
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int tests = 53;
if (clone) {
try {
Certificate c2 = (Certificate)c.Clone();
if (!c.Equals(c2))
AddError("C-CSCBP1");
tests += CheckServerCertBasicProps(c2, false);
} catch {
AddError("C-CSCBP2");
}
}
try {
DistinguishedName dn = c.GetDistinguishedName();
StringDictionary sd = new StringDictionary();
for(int i = 0; i < dn.Count; i++) {
sd.Add(dn[i].ObjectID, dn[i].Value);
}
if (sd.Count != 7)
AddError("C-CSCBP3");
try {
if (sd["2.5.4.3"] != "Mentalis.org Team") //name
AddError("C-CSCBP3");
} catch {
AddError("C-CSCBP5");
}
try {
if (sd["1.2.840.113549.1.9.1"] != "*****@*****.**") //email
AddError("C-CSCBP6");
} catch {
AddError("C-CSCBP7");
}
try {
if (sd["2.5.4.7"] != "Leuven") //city
AddError("C-CSCBP8");
} catch {
AddError("C-CSCBP9");
}
try {
if (sd["2.5.4.6"] != "BE") //country
AddError("C-CSCBP10");
} catch {
AddError("C-CSCBP11");
}
try {
if (sd["2.5.4.10"] != "The KPD-Team") //company
AddError("C-CSCBP12");
} catch {
AddError("C-CSCBP13");
}
try {
if (sd["2.5.4.11"] != "Software Development") //department
AddError("C-CSCBP14");
} catch {
AddError("C-CSCBP15");
}
try {
if (sd["2.5.4.8"] != "Brabant") //state
AddError("C-CSCBP16");
} catch {
AddError("C-CSCBP17");
}
} catch {
AddError("C-CSCBP18");
}
try {
if (!ArrayEquals(c.GetCertHash(HashType.SHA1), SHA1Hash))
AddError("C-CSCBP19");
} catch {
AddError("C-CSCBP20");
}
try {
if (!ArrayEquals(c.GetCertHash(HashType.MD5), MD5Hash))
AddError("C-CSCBP21");
} catch {
AddError("C-CSCBP22");
}
try {
if (c.GetEffectiveDate().ToFileTime() != 0x1C29FBC26000A00)
AddError("C-CSCBP23");
} catch {
AddError("C-CSCBP24");
}
try {
if (c.GetExpirationDate().ToFileTime() != 0x1C3BE8F04678600)
AddError("C-CSCBP25");
} catch {
AddError("C-CSCBP26");
}
try {
StringCollection sc = c.GetEnhancedKeyUsage();
if (sc.Count != 1)
AddError("C-CSCBP27");
if (!sc.Contains("1.3.6.1.5.5.7.3.1"))
AddError("C-CSCBP28");
} catch {
AddError("C-CSCBP29");
}
try {
if (c.GetFormat() != "X509")
AddError("C-CSCBP30");
} catch {
AddError("C-CSCBP31");
}
try {
if (!ArrayEquals(BitConverter.GetBytes(c.GetHashCode()), HashCode))
AddError("C-CSCBP32");
} catch {
AddError("C-CSCBP33");
}
try {
if (c.GetIntendedKeyUsage() != 48) // 48 == Data Encipherment and Key Encipherment
AddError("C-CSCBP34");
} catch {
AddError("C-CSCBP35");
}
try {
if (c.GetIssuerName() != "Mentalis.org Certificate Authority")
AddError("C-CSCBP36");
} catch {
AddError("C-CSCBP37");
}
try {
if (c.GetKeyAlgorithm() != "1.2.840.113549.1.1.5")
AddError("C-CSCBP38");
} catch {
AddError("C-CSCBP39");
}
try {
if (c.GetKeyAlgorithmParametersString() != "0500")
AddError("C-CSCBP40");
} catch {
AddError("C-CSCBP41");
}
try {
if (c.GetName() != "Mentalis.org Team")
AddError("C-CSCBP42");
} catch {
AddError("C-CSCBP43");
}
try {
if (c.GetPublicKeyLength() != 1024)
AddError("C-CSCBP44");
} catch {
AddError("C-CSCBP45");
}
try {
if (c.GetPublicKeyString() != "30818902818100BC7B73D8F2A48B17684E49A1425252FD1D8354E2B3202B79BE5764EF2ADD6D413AE8F6E327FBFC4FB3F274357FEE7478BB28AE58975F73BE510F49E4545665B3B3443FD52C27A0DF6B6D8A3AAB5A42C3DEC14CB9A85955C57A99661FB99FE08363E460BEFFFF33C4B6F9F87B12FD6F5D7F2A8AEF6EFA2DA5FAF7EBD72B8B87170203010001")
AddError("C-CSCBP46");
} catch {
AddError("C-CSCBP47");
}
try {
if (!ArrayEquals(RawData, c.GetRawCertData()))
AddError("C-CSCBP48");
} catch {
AddError("C-CSCBP49");
}
try {
if (!ArrayEquals(c.GetSerialNumber(), Serial))
AddError("C-CSCBP50");
} catch {
AddError("C-CSCBP51");
}
try {
if (!ArrayEquals(RawData, c.ToCerBuffer()))
AddError("C-CSCBP52");
} catch {
AddError("C-CSCBP53");
}
return tests;
}
/// <summary>
/// Returns a certificate from the <see cref="CertificateStore"/>.
/// </summary>
/// <param name="previous">The previous certificate.</param>
/// <returns>The <see cref="Certificate"/> that comes after <paramref name="previous"/> -or- a null reference (<b>Nothing in Visual Basic</b>) if there is no certificate after <paremref name="previous"/>.</returns>
public Certificate FindCertificate(Certificate previous) {
IntPtr prev;
if (previous == null)
prev = IntPtr.Zero;
else
prev = SspiProvider.CertDuplicateCertificateContext(previous.Handle);
IntPtr ret = SspiProvider.CertFindCertificateInStore(Handle, SecurityConstants.X509_ASN_ENCODING, 0, SecurityConstants.CERT_FIND_ANY, IntPtr.Zero, prev);
if (ret.Equals(IntPtr.Zero))
return null;
else
return new Certificate(ret, this);
}
protected Certificate[] ParseCertificateList(byte[] list)
{
Queue queue = new Queue();
int offset = 3;
while(offset < list.Length) {
int length = list[offset] * 65536 + list[offset + 1] * 256 + list[offset + 2];
queue.Enqueue(Certificate.CreateFromCerFile(list, offset + 3, length));
offset += length + 3;
}
Certificate[] certs = new Certificate[queue.Count];
offset = 0;
while(queue.Count > 0) {
certs[offset] = (Certificate)queue.Dequeue();
offset++;
}
return certs;
}
/// <summary>
/// Finds a certificate having an enhanced key extension that matches one of the <paramref name="keyUsage"/> members.
/// </summary>
/// <param name="keyUsage">The list of enhanced key usages to search for.</param>
/// <param name="previous">The previous certificate.</param>
/// <returns>The <see cref="Certificate"/> that comes after <paramref name="previous"/> and that has at least one of the specified key usages -or- a null reference (<b>Nothing in Visual Basic</b>) if no other valid certificate could be found.</returns>
/// <exception cref="ArgumentNullException"><paramref name="keyUsage"/> is a null reference (<b>Nothing</b> in Visual Basic).</exception>
/// <exception cref="ArgumentException"><paramref name="keyUsage"/> is invalid.</exception>
public Certificate FindCertificateByUsage(string[] keyUsage, Certificate previous) {
// "1.3.6.1.5.5.7.3.1" is the Server Authentication OID as defined in RFC2459
if (keyUsage == null)
throw new ArgumentNullException();
if (keyUsage.Length == 0)
throw new ArgumentException();
int total = 0;
for(int i = 0; i < keyUsage.Length; i++) {
if (keyUsage[i] == null || keyUsage[i].Length == 0)
throw new ArgumentException();
total += keyUsage[i].Length + 1;
}
IntPtr storage = Marshal.AllocHGlobal(total); // block of memory that contains all the strings
IntPtr list = Marshal.AllocHGlobal(IntPtr.Size * keyUsage.Length); // list of pointers to the strings
total = 0;
IntPtr s = storage;
for(int i = 0; i < keyUsage.Length; i++) {
Marshal.Copy(Encoding.ASCII.GetBytes(keyUsage[i] + "\0"), 0, s, keyUsage[i].Length + 1);
Marshal.WriteIntPtr(list, i * IntPtr.Size, s);
s = new IntPtr(storage.ToInt64() + keyUsage[i].Length + 1);
}
// search for a certificate
TrustListUsage usage = new TrustListUsage();
usage.cUsageIdentifier = keyUsage.Length;
usage.rgpszUsageIdentifier = list;
IntPtr prev;
if (previous == null)
prev = IntPtr.Zero;
else
prev = SspiProvider.CertDuplicateCertificateContext(previous.Handle);
IntPtr ret = SspiProvider.CertFindUsageCertificateInStore(Handle, SecurityConstants.X509_ASN_ENCODING | SecurityConstants.PKCS_7_ASN_ENCODING, 0, SecurityConstants.CERT_FIND_CTL_USAGE, ref usage, prev);
Marshal.FreeHGlobal(list);
Marshal.FreeHGlobal(storage);
if (ret.Equals(IntPtr.Zero))
return null;
else
return new Certificate(ret, this);
}
protected byte[] GetCertificateBytes(Certificate certificate)
{
if (certificate == null)
return new byte[]{0, 0, 0};
byte[] cert_bytes = certificate.ToCerBuffer();
byte[] ret = new byte[6 + cert_bytes.Length];
int size = cert_bytes.Length + 3;
ret[0] = (byte)(size / 65536);
ret[1] = (byte)((size % 65536) / 256);
ret[2] = (byte)(size % 256);
ret[3] = (byte)(cert_bytes.Length / 65536);
ret[4] = (byte)((cert_bytes.Length % 65536) / 256);
ret[5] = (byte)(cert_bytes.Length % 256);
Buffer.BlockCopy(cert_bytes, 0, ret, 6, cert_bytes.Length);
return ret;
}
/// <summary>
/// Finds a certificate with a matching subject name.
/// </summary>
/// <param name="name">The X500 string to search for.</param>
/// <param name="previous">The previous certificate.</param>
/// <returns>A <see cref="Certificate"/> with a matching subject name -or- a null reference (<b>Nothing</b> in Visual Basic) if no matching certificate could be found in the store.</returns>
/// <exception cref="ArgumentNullException"><paramref name="name"/> is a null reference (<b>Nothing</b> in Visual Basic).</exception>
/// <exception cref="ArgumentException"><paramref name="name"/> is invalid.</exception>
/// <exception cref="CertificateException">An error occurs while encoding the specified string.</exception>
public Certificate FindCertificateBySubjectName(string name, Certificate previous) {
if (name == null)
throw new ArgumentNullException();
if (name.Length == 0)
throw new ArgumentException();
IntPtr prev, cert = IntPtr.Zero;
if (previous == null)
prev = IntPtr.Zero;
else
prev = SspiProvider.CertDuplicateCertificateContext(previous.Handle);
DataBlob data = new DataBlob();
if (SspiProvider.CertStrToName(SecurityConstants.X509_ASN_ENCODING | SecurityConstants.PKCS_7_ASN_ENCODING, name, SecurityConstants.CERT_X500_NAME_STR, IntPtr.Zero, IntPtr.Zero, ref data.cbData, IntPtr.Zero) == 0)
throw new CertificateException("Could not encode the specified string. [is the string a valid X500 string?]");
data.pbData = Marshal.AllocHGlobal(data.cbData);
try {
if (SspiProvider.CertStrToName(SecurityConstants.X509_ASN_ENCODING | SecurityConstants.PKCS_7_ASN_ENCODING, name, SecurityConstants.CERT_X500_NAME_STR, IntPtr.Zero, data.pbData, ref data.cbData, IntPtr.Zero) == 0)
throw new CertificateException("Could not encode the specified string.");
cert = SspiProvider.CertFindDataBlobCertificateInStore(this.Handle, SecurityConstants.X509_ASN_ENCODING | SecurityConstants.PKCS_7_ASN_ENCODING, 0, SecurityConstants.CERT_FIND_SUBJECT_NAME, ref data, prev);
} finally {
Marshal.FreeHGlobal(data.pbData);
}
if (cert == IntPtr.Zero)
return null;
else
return new Certificate(cert);
}
/// <summary>
/// Initializes a new <see cref="CertificateChain"/> instance from a <see cref="Certificate"/>.
/// </summary>
/// <param name="cert">The certificate for which a chain is being built.</param>
/// <param name="additional">Any additional store to be searched for supporting certificates and CTLs.</param>
/// <remarks><paramref name="cert"/> will always be the end certificate.</remarks>
/// <exception cref="ArgumentNullException"><paramref name="cert"/> is a null reference (<b>Nothing</b> in Visual Basic).</exception>
/// <exception cref="CertificateException">An error occurs while building the certificate chain.</exception>
public CertificateChain(Certificate cert, CertificateStore additional) : this(cert, additional, CertificateChainOptions.Default) {}
/// <summary>
/// Finds a certificate with a subject that contains a specified string.
/// </summary>
/// <param name="subject">The string to search for.</param>
/// <param name="previous">The previous certificate.</param>
/// <returns>A <see cref="Certificate"/> with a matching subject string -or- a null reference (<b>Nothing</b> in Visual Basic) if no matching certificate could be found in the store.</returns>
/// <exception cref="ArgumentNullException"><paramref name="subject"/> is a null reference (<b>Nothing</b> in Visual Basic).</exception>
/// <exception cref="ArgumentException"><paramref name="subject"/> is invalid.</exception>
/// <remarks>The string matching algorithm used is case-insensitive.</remarks>
public Certificate FindCertificateBySubjectString(string subject, Certificate previous) {
if (subject == null)
throw new ArgumentNullException();
if (subject.Length == 0)
throw new ArgumentException();
IntPtr prev;
if (previous == null)
prev = IntPtr.Zero;
else
prev = SspiProvider.CertDuplicateCertificateContext(previous.Handle);
IntPtr cert = SspiProvider.CertFindStringCertificateInStore(this.Handle, SecurityConstants.X509_ASN_ENCODING | SecurityConstants.PKCS_7_ASN_ENCODING, 0, SecurityConstants.CERT_FIND_SUBJECT_STR_W, subject, prev);
if (cert == IntPtr.Zero)
return null;
else
return new Certificate(cert);
}
/// <summary>
/// Returns an array of usages consisting of the intersection of the valid usages for all certificates in an array of certificates.
/// </summary>
/// <param name="certificates">Array of certificates to be checked for valid usage.</param>
/// <returns>An array of valid usages -or- a null reference (<b>Nothing</b> in Visual Basic) if all certificates support all usages.</returns>
/// <exception cref="ArgumentNullException"><paramref name="certificates"/> is a null reference (<b>Nothing</b> in Visual Basic).</exception>
/// <exception cref="ArgumentException">The array of certificates contains at least one invalid entry.</exception>
/// <exception cref="CertificateException">An error occurs while determining the intersection of valid usages.</exception>
public static string[] GetValidUsages(Certificate[] certificates)
{
if (certificates == null)
throw new ArgumentNullException();
IntPtr buffer = IntPtr.Zero;
IntPtr certs = Marshal.AllocHGlobal(certificates.Length * IntPtr.Size);
try {
for (int i = 0; i < certificates.Length; i++) {
if (certificates[i] == null)
throw new ArgumentException();
Marshal.WriteIntPtr(certs, i * IntPtr.Size, certificates[i].Handle);
}
int count = 0, bytes = 0;
if (SspiProvider.CertGetValidUsages(certificates.Length, certs, ref count, buffer, ref bytes) == 0)
throw new CertificateException("Unable to get the valid usages.");
if (count == -1)
return null; // every usage is valid
buffer = Marshal.AllocHGlobal(bytes);
if (SspiProvider.CertGetValidUsages(certificates.Length, certs, ref count, buffer, ref bytes) == 0)
throw new CertificateException("Unable to get the valid usages.");
string[] ret = new string[count];
for (int i = 0; i < count; i++) {
ret[i] = Marshal.PtrToStringAnsi(Marshal.ReadIntPtr(buffer, i * IntPtr.Size));
}
return ret;
} finally {
Marshal.FreeHGlobal(certs);
if (buffer != IntPtr.Zero)
Marshal.FreeHGlobal(buffer);
}
}
/// <summary>
/// Adds a <see cref="Certificate"/> to the <see cref="CertificateStore"/>.
/// </summary>
/// <param name="cert">The certificate to add to the store.</param>
/// <exception cref="ArgumentNullException"><paramref name="cert"/> is a null reference (<b>Nothing</b> in Visual Basic).</exception>
/// <exception cref="CertificateException">An error occurs while adding the certificate to the store.</exception>
public void AddCertificate(Certificate cert) {
if (cert == null)
throw new ArgumentNullException();
if (SspiProvider.CertAddCertificateContextToStore(this.Handle, cert.Handle, SecurityConstants.CERT_STORE_ADD_NEW, IntPtr.Zero) == 0) {
if (Marshal.GetLastWin32Error() != SecurityConstants.CRYPT_E_EXISTS)
throw new CertificateException("An error occurs while adding the certificate to the store.");
}
}
/// <summary>
/// Duplicates a given certificate.
/// </summary>
/// <param name="certificate">The certificate to duplicate.</param>
/// <exception cref="ArgumentNullException"><paramref name="certificate"/> is a null reference (<b>Nothing</b> in Visual Basic).</exception>
public Certificate(Certificate certificate)
{
if (certificate == null)
throw new ArgumentNullException();
InitCertificate(certificate.Handle, true, null);
}
/// <summary>
/// Deletes a <see cref="Certificate"/> from the <see cref="CertificateStore"/>.
/// </summary>
/// <exception cref="ArgumentNullException"><paramref name="cert"/> is a null reference (<b>Nothing</b> in Visual Basic).</exception>
/// <exception cref="CertificateException">An error occurs while removing the certificate from the store.</exception>
public void DeleteCertificate(Certificate cert) {
if (cert == null)
throw new ArgumentNullException();
Certificate sci = FindCertificateByHash(cert.GetCertHash(HashType.SHA1), HashType.SHA1);
if (sci == null)
throw new CertificateException("The certificate could not be found in the store.");
if (SspiProvider.CertDeleteCertificateFromStore(SspiProvider.CertDuplicateCertificateContext(sci.Handle)) == 0)
throw new CertificateException("An error occurs while removing the certificate from the store.");
}
