public SecurityToken GetToken(TimeSpan timeout)
{
WstRequestSecurityToken req = new WstRequestSecurityToken();
BodyWriter body = new WstRequestSecurityTokenWriter(req, SecurityTokenSerializer);
Message msg = Message.CreateMessage(IssuerBinding.MessageVersion, Constants.WstIssueAction, body);
Message res = comm.Issue(msg);
// FIXME: provide SecurityTokenResolver (but from where?)
using (WSTrustRequestSecurityTokenResponseReader resreader = new WSTrustRequestSecurityTokenResponseReader(null, res.GetReaderAtBodyContents(), SecurityTokenSerializer, null)) {
WstRequestSecurityTokenResponse rstr = resreader.Read();
if (rstr.RequestedSecurityToken != null)
{
return(rstr.RequestedSecurityToken);
}
throw new NotImplementedException("IssuedSecurityTokenProvider did not see RequestedSecurityToken in the response.");
}
}
Message ProcessMessageType3(Message request)
{
// FIXME: use correct buffer size
MessageBuffer buffer = request.CreateBufferedCopy(0x10000);
Console.WriteLine(buffer.CreateMessage());
WSTrustRequestSecurityTokenResponseReader reader =
new WSTrustRequestSecurityTokenResponseReader(Constants.WstSpnegoProofTokenType, buffer.CreateMessage().GetReaderAtBodyContents(), SecurityTokenSerializer, null);
reader.Read();
byte [] raw = reader.Value.BinaryExchange.Value;
bool gss = "NTLMSSP" != Encoding.ASCII.GetString(raw, 0, 7);
foreach (byte b in raw)
{
Console.Write("{0:X02} ", b);
}
Console.WriteLine();
SspiServerSession sspi;
if (!sessions.TryGetValue(reader.Value.Context, out sspi))
{
throw new SecurityNegotiationException(String.Format("The context '{0}' does not exist in this SSL negotiation manager", reader.Value.Context));
}
if (gss)
{
sspi.ProcessSpnegoProcessContextToken(raw);
}
else
{
sspi.ProcessMessageType3(raw);
}
throw new NotImplementedException();
/*
* AppendNegotiationMessageXml (buffer.CreateMessage ().GetReaderAtBodyContents (), tlsInfo);
* //Console.WriteLine (System.Text.Encoding.UTF8.GetString (tlsInfo.Messages.ToArray ()));
*
* tls.ProcessClientKeyExchange (reader.Value.BinaryExchange.Value);
*
* byte [] serverFinished = tls.ProcessServerFinished ();
*
* // The shared key is computed as recommended in WS-Trust:
* // P_SHA1(encrypted_key,SHA1(exc14n(RST..RSTRs))+"CK-HASH")
* byte [] hash = SHA1.Create ().ComputeHash (tlsInfo.Messages.ToArray ());
* byte [] key = tls.CreateHash (tls.MasterSecret, hash, "CK-HASH");
* foreach (byte b in hash) Console.Write ("{0:X02} ", b); Console.WriteLine ();
* foreach (byte b in key) Console.Write ("{0:X02} ", b); Console.WriteLine ();
*
* WstRequestSecurityTokenResponseCollection col =
* new WstRequestSecurityTokenResponseCollection ();
* WstRequestSecurityTokenResponse rstr =
* new WstRequestSecurityTokenResponse (SecurityTokenSerializer);
* rstr.Context = reader.Value.Context;
* rstr.TokenType = Constants.WsscContextToken;
* DateTime from = DateTime.Now;
* // FIXME: not sure if arbitrary key is used here.
* SecurityContextSecurityToken sct = SecurityContextSecurityToken.CreateCookieSecurityContextToken (
* // Create a new context.
* // (do not use sslnego context here.)
* new UniqueId (),
* "uuid-" + Guid.NewGuid (),
* key,
* from,
* // FIXME: use LocalServiceSecuritySettings.NegotiationTimeout
* from.AddHours (8),
* null,
* owner.Manager.ServiceCredentials.SecureConversationAuthentication.SecurityStateEncoder);
* rstr.RequestedSecurityToken = sct;
* rstr.RequestedProofToken = tls.ProcessApplicationData (key);
* rstr.RequestedAttachedReference = new LocalIdKeyIdentifierClause (sct.Id);
* rstr.RequestedUnattachedReference = new SecurityContextKeyIdentifierClause (sct.ContextId, null);
* WstLifetime lt = new WstLifetime ();
* lt.Created = from;
* // FIXME: use LocalServiceSecuritySettings.NegotiationTimeout
* lt.Expires = from.AddHours (8);
* rstr.Lifetime = lt;
* rstr.BinaryExchange = new WstBinaryExchange (Constants.WstBinaryExchangeValueGss);
* rstr.BinaryExchange.Value = serverFinished;
*
* col.Responses.Add (rstr);
*
* // Authenticator is mandatory for MS sslnego.
* rstr = new WstRequestSecurityTokenResponse (SecurityTokenSerializer);
* rstr.Context = reader.Value.Context;
* rstr.Authenticator = tls.CreateHash (key, hash, "AUTH-HASH");
* col.Responses.Add (rstr);
*
* sessions.Remove (reader.Value.Context);
*
* return Message.CreateMessage (request.Version, Constants.WstIssueReplyAction, col);
*/
}
public SecurityToken GetToken(TimeSpan timeout)
{
TlsnegoClientSessionContext tlsctx =
new TlsnegoClientSessionContext();
TlsClientSession tls = new TlsClientSession(IssuerAddress.Uri.ToString(), client_certificate, owner.Manager.ClientCredentials.ServiceCertificate.Authentication);
WstRequestSecurityToken rst =
new WstRequestSecurityToken();
string contextId = rst.Context;
// send ClientHello
rst.BinaryExchange = new WstBinaryExchange(Constants.WstBinaryExchangeValueTls);
rst.BinaryExchange.Value = tls.ProcessClientHello();
Message request = Message.CreateMessage(IssuerBinding.MessageVersion, Constants.WstIssueAction, rst);
request.Headers.MessageId = new UniqueId();
request.Headers.ReplyTo = new EndpointAddress(Constants.WsaAnonymousUri);
request.Headers.To = TargetAddress.Uri;
MessageBuffer buffer = request.CreateBufferedCopy(0x10000);
tlsctx.StoreMessage(buffer.CreateMessage().GetReaderAtBodyContents());
Message response = proxy.Issue(buffer.CreateMessage());
// FIXME: use correct limitation
buffer = response.CreateBufferedCopy(0x10000);
tlsctx.StoreMessage(buffer.CreateMessage().GetReaderAtBodyContents());
// receive ServerHello
WSTrustRequestSecurityTokenResponseReader reader =
new WSTrustRequestSecurityTokenResponseReader(Constants.WstTlsnegoProofTokenType, buffer.CreateMessage().GetReaderAtBodyContents(), SecurityTokenSerializer, null);
reader.Read();
if (reader.Value.RequestedSecurityToken != null)
{
return(reader.Value.RequestedSecurityToken);
}
tls.ProcessServerHello(reader.Value.BinaryExchange.Value);
// send ClientKeyExchange
WstRequestSecurityTokenResponse rstr =
new WstRequestSecurityTokenResponse(SecurityTokenSerializer);
rstr.Context = reader.Value.Context;
rstr.BinaryExchange = new WstBinaryExchange(Constants.WstBinaryExchangeValueTls);
rstr.BinaryExchange.Value = tls.ProcessClientKeyExchange();
request = Message.CreateMessage(IssuerBinding.MessageVersion, Constants.WstIssueReplyAction, rstr);
request.Headers.ReplyTo = new EndpointAddress(Constants.WsaAnonymousUri);
request.Headers.To = TargetAddress.Uri;
buffer = request.CreateBufferedCopy(0x10000);
tlsctx.StoreMessage(buffer.CreateMessage().GetReaderAtBodyContents());
//Console.WriteLine (System.Text.Encoding.UTF8.GetString (tlsctx.GetC14NResults ()));
// FIXME: regeneration of this instance is somehow required, but should not be.
proxy = new WSTrustSecurityTokenServiceProxy(
IssuerBinding, IssuerAddress);
response = proxy.IssueReply(buffer.CreateMessage());
// FIXME: use correct limitation
buffer = response.CreateBufferedCopy(0x10000);
WstRequestSecurityTokenResponseCollection coll =
new WstRequestSecurityTokenResponseCollection();
coll.Read(Constants.WstTlsnegoProofTokenType, buffer.CreateMessage().GetReaderAtBodyContents(), SecurityTokenSerializer, null);
if (coll.Responses.Count != 2)
{
throw new SecurityNegotiationException(String.Format("Expected response is RequestSecurityTokenResponseCollection which contains two RequestSecurityTokenResponse items, but it actually contains {0} items", coll.Responses.Count));
}
WstRequestSecurityTokenResponse r = coll.Responses [0];
tls.ProcessServerFinished(r.BinaryExchange.Value);
SecurityContextSecurityToken sctSrc =
r.RequestedSecurityToken;
#if false // FIXME: should this final RSTR included in RSTRC considered too?
XmlDocument doc = new XmlDocument();
doc.PreserveWhitespace = true;
using (XmlDictionaryWriter dw = XmlDictionaryWriter.CreateDictionaryWriter(doc.CreateNavigator().AppendChild()))
{
if (r == null)
{
throw new Exception("r");
}
if (dw == null)
{
throw new Exception("dw");
}
r.WriteBodyContents(dw);
}
tlsctx.StoreMessage(XmlDictionaryReader.CreateDictionaryReader(new XmlNodeReader(doc)));
#endif
// the RequestedProofToken is represented as 32 bytes
// of TLS ApplicationData.
// - According to WSE2 doc, it is *the* key, but not
// sure it also applies to WCF.
// - WSS4J also seems to store the encryped shared key.
// - (Important) It seems that without tls decryption,
// .NET fails to recover the key.
byte [] proof = tls.ProcessApplicationData(
(byte [])r.RequestedProofToken);
byte [] key = proof;
// Authenticate token.
byte [] actual = coll.Responses [1].Authenticator;
if (actual == null)
{
throw new SecurityNegotiationException("Token authenticator is expected in the RequestSecurityTokenResponse but not found.");
}
if (coll.Responses [0].Context != contextId)
{
throw new SecurityNegotiationException("The context Id does not match with that of the corresponding token authenticator.");
}
// H = sha1(exc14n(RST..RSTRs))
byte [] hash = SHA1.Create().ComputeHash(tlsctx.GetC14NResults());
byte [] referent = tls.CreateHash(key, hash, "AUTH-HASH");
Console.WriteLine(System.Text.Encoding.ASCII.GetString(tlsctx.GetC14NResults()));
Console.Write("Hash: ");
foreach (byte b in hash)
{
Console.Write("{0:X02} ", b);
}
Console.WriteLine();
Console.Write("Referent: ");
foreach (byte b in referent)
{
Console.Write("{0:X02} ", b);
}
Console.WriteLine();
Console.Write("Actual: ");
foreach (byte b in actual)
{
Console.Write("{0:X02} ", b);
}
Console.WriteLine();
Console.Write("Proof: ");
foreach (byte b in proof)
{
Console.Write("{0:X02} ", b);
}
Console.WriteLine();
bool mismatch = referent.Length != actual.Length;
if (!mismatch)
{
for (int i = 0; i < referent.Length; i++)
{
if (referent [i] != actual [i])
{
mismatch = true;
}
}
}
if (mismatch)
{
throw new SecurityNegotiationException("The CombinedHash does not match the expected value.");
}
return(sctSrc);
}
Message ProcessClientKeyExchange(Message request)
{
// FIXME: use correct buffer size
MessageBuffer buffer = request.CreateBufferedCopy(0x10000);
WSTrustRequestSecurityTokenResponseReader reader =
new WSTrustRequestSecurityTokenResponseReader(Constants.WstTlsnegoProofTokenType, buffer.CreateMessage().GetReaderAtBodyContents(), SecurityTokenSerializer, null);
reader.Read();
TlsServerSessionInfo tlsInfo;
if (!sessions.TryGetValue(reader.Value.Context, out tlsInfo))
{
throw new SecurityNegotiationException(String.Format("The context '{0}' does not exist in this SSL negotiation manager", reader.Value.Context));
}
TlsServerSession tls = tlsInfo.Tls;
AppendNegotiationMessageXml(buffer.CreateMessage().GetReaderAtBodyContents(), tlsInfo);
//Console.WriteLine (System.Text.Encoding.UTF8.GetString (tlsInfo.Messages.ToArray ()));
tls.ProcessClientKeyExchange(reader.Value.BinaryExchange.Value);
byte [] serverFinished = tls.ProcessServerFinished();
// The shared key is computed as recommended in WS-Trust:
// P_SHA1(encrypted_key,SHA1(exc14n(RST..RSTRs))+"CK-HASH")
byte [] hash = SHA1.Create().ComputeHash(tlsInfo.Messages.ToArray());
byte [] key = tls.CreateHash(tls.MasterSecret, hash, "CK-HASH");
byte [] keyTlsApplied = tls.ProcessApplicationData(key);
foreach (byte b in hash)
{
Console.Write("{0:X02} ", b);
}
Console.WriteLine();
foreach (byte b in key)
{
Console.Write("{0:X02} ", b);
}
Console.WriteLine();
WstRequestSecurityTokenResponseCollection col =
new WstRequestSecurityTokenResponseCollection();
WstRequestSecurityTokenResponse rstr =
new WstRequestSecurityTokenResponse(SecurityTokenSerializer);
rstr.Context = reader.Value.Context;
rstr.TokenType = Constants.WsscContextToken;
DateTime from = DateTime.Now;
// FIXME: not sure if arbitrary key is used here.
SecurityContextSecurityToken sct = SecurityContextSecurityToken.CreateCookieSecurityContextToken(
// Create a new context.
// (do not use sslnego context here.)
new UniqueId(),
"uuid-" + Guid.NewGuid(),
key,
from,
// FIXME: use LocalServiceSecuritySettings.NegotiationTimeout
from.AddHours(8),
null,
owner.Manager.ServiceCredentials.SecureConversationAuthentication.SecurityStateEncoder);
rstr.RequestedSecurityToken = sct;
// without this ProcessApplicationData(), .NET seems
// to fail recovering the key.
rstr.RequestedProofToken = keyTlsApplied;
rstr.RequestedAttachedReference = new LocalIdKeyIdentifierClause(sct.Id);
rstr.RequestedUnattachedReference = new SecurityContextKeyIdentifierClause(sct.ContextId, null);
WstLifetime lt = new WstLifetime();
lt.Created = from;
lt.Expires = from.Add(SecurityBindingElement.LocalServiceSettings.IssuedCookieLifetime);
rstr.Lifetime = lt;
rstr.BinaryExchange = new WstBinaryExchange(Constants.WstBinaryExchangeValueTls);
rstr.BinaryExchange.Value = serverFinished;
col.Responses.Add(rstr);
// Authenticator is mandatory for MS sslnego.
rstr = new WstRequestSecurityTokenResponse(SecurityTokenSerializer);
rstr.Context = reader.Value.Context;
rstr.Authenticator = tls.CreateHash(key, hash, "AUTH-HASH");
col.Responses.Add(rstr);
sessions.Remove(reader.Value.Context);
// FIXME: get correct tokenRequestor address (probably identity authorized?)
if (owner.IssuedSecurityTokenHandler != null)
{
owner.IssuedSecurityTokenHandler(sct, request.Headers.ReplyTo);
}
return(Message.CreateMessage(request.Version, Constants.WstIssueReplyAction, col));
}
public SecurityToken GetToken(TimeSpan timeout)
{
bool gss = (TargetAddress.Identity == null);
SspiClientSession sspi = new SspiClientSession();
WstRequestSecurityToken rst =
new WstRequestSecurityToken();
// send MessageType1
rst.BinaryExchange = new WstBinaryExchange(Constants.WstBinaryExchangeValueGss);
// When the TargetAddress does not contain the endpoint
// identity, then .net seems to use Kerberos instead of
// raw NTLM.
if (gss)
{
rst.BinaryExchange.Value = sspi.ProcessSpnegoInitialContextTokenRequest();
}
else
{
rst.BinaryExchange.Value = sspi.ProcessMessageType1();
}
Message request = Message.CreateMessage(IssuerBinding.MessageVersion, Constants.WstIssueAction, rst);
request.Headers.MessageId = new UniqueId();
request.Headers.ReplyTo = new EndpointAddress(Constants.WsaAnonymousUri);
request.Headers.To = TargetAddress.Uri;
MessageBuffer buffer = request.CreateBufferedCopy(0x10000);
// tlsctx.StoreMessage (buffer.CreateMessage ().GetReaderAtBodyContents ());
// receive MessageType2
Message response = proxy.Issue(buffer.CreateMessage());
buffer = response.CreateBufferedCopy(0x10000);
// tlsctx.StoreMessage (buffer.CreateMessage ().GetReaderAtBodyContents ());
WSTrustRequestSecurityTokenResponseReader reader =
new WSTrustRequestSecurityTokenResponseReader(Constants.WstSpnegoProofTokenType, buffer.CreateMessage().GetReaderAtBodyContents(), SecurityTokenSerializer, null);
reader.Read();
byte [] raw = reader.Value.BinaryExchange.Value;
if (gss)
{
sspi.ProcessSpnegoInitialContextTokenResponse(raw);
}
else
{
sspi.ProcessMessageType2(raw);
}
// send MessageType3
WstRequestSecurityTokenResponse rstr =
new WstRequestSecurityTokenResponse(SecurityTokenSerializer);
rstr.Context = reader.Value.Context;
rstr.BinaryExchange = new WstBinaryExchange(Constants.WstBinaryExchangeValueGss);
NetworkCredential cred = owner.Manager.ClientCredentials.Windows.ClientCredential;
string user = string.IsNullOrEmpty(cred.UserName) ? Environment.UserName : cred.UserName;
string pass = cred.Password ?? String.Empty;
if (gss)
{
rstr.BinaryExchange.Value = sspi.ProcessSpnegoProcessContextToken(user, pass);
}
else
{
rstr.BinaryExchange.Value = sspi.ProcessMessageType3(user, pass);
}
request = Message.CreateMessage(IssuerBinding.MessageVersion, Constants.WstIssueReplyAction, rstr);
request.Headers.MessageId = new UniqueId();
request.Headers.ReplyTo = new EndpointAddress(Constants.WsaAnonymousUri);
request.Headers.To = TargetAddress.Uri;
buffer = request.CreateBufferedCopy(0x10000);
// tlsctx.StoreMessage (buffer.CreateMessage ().GetReaderAtBodyContents ());
proxy = new WSTrustSecurityTokenServiceProxy(
IssuerBinding, IssuerAddress);
response = proxy.IssueReply(buffer.CreateMessage());
// FIXME: use correct limitation
buffer = response.CreateBufferedCopy(0x10000);
// don't store this message for ckhash (it's not part
// of exchange)
/* Console.WriteLine (buffer.CreateMessage ()); */
throw new NotImplementedException();
}
