private double ParameterizedCheckIdTest(Protocol protocol, string assocType)
{
Association assoc = HmacShaAssociation.Create(
protocol,
assocType,
AssociationRelyingPartyType.Smart,
this.provider.SecuritySettings);
this.provider.AssociationStore.StoreAssociation(AssociationRelyingPartyType.Smart, assoc);
var checkidRequest = this.CreateCheckIdRequest(true);
Stopwatch timer = new Stopwatch();
timer.Start();
int iterations;
for (iterations = 0; timer.ElapsedMilliseconds < TestRunTime.TotalMilliseconds; iterations++)
{
var request = (IAuthenticationRequest)this.provider.GetRequest(checkidRequest);
request.IsAuthenticated = true;
var response = this.provider.PrepareResponse(request);
Assert.IsInstanceOf <PositiveAssertionResponse>(response.OriginalMessage);
}
timer.Stop();
double executionsPerSecond = GetExecutionsPerSecond(iterations, timer);
TestUtilities.TestLogger.InfoFormat("Responded to {0} checkid messages in {1}; or {2} authentications per second.", iterations, timer.Elapsed, executionsPerSecond);
return(executionsPerSecond);
}
/// <summary>
/// Creates a Provider's response to an incoming association request.
/// </summary>
/// <param name="requestMessage">The request message.</param>
/// <param name="associationStore">The association store.</param>
/// <param name="securitySettings">The security settings on the Provider.</param>
/// <returns>
/// The appropriate association response that is ready to be sent back to the Relying Party.
/// </returns>
/// <remarks>
/// <para>If an association is created, it will be automatically be added to the provided
/// association store.</para>
/// <para>Successful association response messages will derive from <see cref="AssociateSuccessfulResponse"/>.
/// Failed association response messages will derive from <see cref="AssociateUnsuccessfulResponse"/>.</para>
/// </remarks>
internal static IProtocolMessage CreateResponse(IAssociateRequestProvider requestMessage, IProviderAssociationStore associationStore, ProviderSecuritySettings securitySettings)
{
Requires.NotNull(requestMessage, "requestMessage");
Requires.NotNull(associationStore, "associationStore");
Requires.NotNull(securitySettings, "securitySettings");
AssociateRequest request = (AssociateRequest)requestMessage;
IProtocolMessage response;
var protocol = requestMessage.GetProtocol();
if (securitySettings.IsAssociationInPermittedRange(protocol, request.AssociationType) &&
HmacShaAssociation.IsDHSessionCompatible(protocol, request.AssociationType, request.SessionType))
{
response = requestMessage.CreateResponseCore();
// Create and store the association if this is a successful response.
var successResponse = response as IAssociateSuccessfulResponseProvider;
if (successResponse != null)
{
OpenIdProviderUtilities.CreateAssociation(request, successResponse, associationStore, securitySettings);
}
}
else
{
response = CreateUnsuccessfulResponse(requestMessage, securitySettings);
}
return(response);
}
/// <summary>
/// Creates a response that notifies the Relying Party that the requested
/// association type is not supported by this Provider, and offers
/// an alternative association type, if possible.
/// </summary>
/// <param name="requestMessage">The request message.</param>
/// <param name="securitySettings">The security settings that apply to this Provider.</param>
/// <returns>
/// The response to send to the Relying Party.
/// </returns>
private static AssociateUnsuccessfulResponse CreateUnsuccessfulResponse(IAssociateRequestProvider requestMessage, ProviderSecuritySettings securitySettings)
{
Requires.NotNull(requestMessage, "requestMessage");
Requires.NotNull(securitySettings, "securitySettings");
var unsuccessfulResponse = new AssociateUnsuccessfulResponse(requestMessage.Version, (AssociateRequest)requestMessage);
// The strategy here is to suggest that the RP try again with the lowest
// permissible security settings, giving the RP the best chance of being
// able to match with a compatible request.
bool unencryptedAllowed = requestMessage.Recipient.IsTransportSecure();
bool useDiffieHellman = !unencryptedAllowed;
var request = (AssociateRequest)requestMessage;
var protocol = requestMessage.GetProtocol();
string associationType, sessionType;
if (HmacShaAssociation.TryFindBestAssociation(protocol, false, securitySettings, useDiffieHellman, out associationType, out sessionType))
{
ErrorUtilities.VerifyInternal(request.AssociationType != associationType, "The RP asked for an association that should have been allowed, but the OP is trying to suggest the same one as an alternative!");
unsuccessfulResponse.AssociationType = associationType;
unsuccessfulResponse.SessionType = sessionType;
Logger.OpenId.InfoFormat(
"Association requested of type '{0}' and session '{1}', which the Provider does not support. Sending back suggested alternative of '{0}' with session '{1}'.",
request.AssociationType,
request.SessionType,
unsuccessfulResponse.AssociationType,
unsuccessfulResponse.SessionType);
}
else
{
Logger.OpenId.InfoFormat("Association requested of type '{0}' and session '{1}', which the Provider does not support. No alternative association type qualified for suggesting back to the Relying Party.", request.AssociationType, request.SessionType);
}
return(unsuccessfulResponse);
}
public void Sign()
{
Association assoc1 = HmacShaAssociation.Create(Protocol.Default, Protocol.Default.Args.SignatureAlgorithm.HMAC_SHA1, "h1", this.sha1Secret, TimeSpan.FromMinutes(2));
Association assoc2 = HmacShaAssociation.Create(Protocol.Default, Protocol.Default.Args.SignatureAlgorithm.HMAC_SHA1, "h2", this.sha1Secret2, TimeSpan.FromMinutes(2));
var data = new byte[] { 0xdd, 0xcc };
// sign once and verify that it's sane
byte[] signature1 = assoc1.Sign(data);
Assert.IsNotNull(signature1);
Assert.AreNotEqual(0, signature1.Length);
// sign again and make sure it's different
byte[] signature2 = assoc2.Sign(data);
Assert.IsNotNull(signature2);
Assert.AreNotEqual(0, signature2.Length);
Assert.IsFalse(MessagingUtilities.AreEquivalent(signature1, signature2));
// sign again with the same secret and make sure it's the same.
Assert.IsTrue(MessagingUtilities.AreEquivalent(signature1, assoc1.Sign(data)));
// now change the data and make sure signature changes
data[1] = 0xee;
Assert.IsFalse(MessagingUtilities.AreEquivalent(signature1, assoc1.Sign(data)));
}
public void SignSome()
{
Association assoc = HmacShaAssociation.Create(Protocol.Default, Protocol.Default.Args.SignatureAlgorithm.HMAC_SHA1,
"h1", sha1Secret, TimeSpan.FromMinutes(2));
const string prefix = "q.";
var dict = new Dictionary <string, string>();
dict.Add("q.a", "b");
dict.Add("q.c", "d");
dict.Add("q.e", "f");
var signKeys = new List <string> {
"a", "c"
}; // don't sign e
byte[] sig1 = assoc.Sign(dict, signKeys, prefix);
// change the unsigned value and verify that the sig doesn't change
dict["q.e"] = "g";
Assert.IsTrue(Util.ArrayEquals(sig1, assoc.Sign(dict, signKeys, prefix)));
// change a signed value and verify that the sig does change.
dict["q.c"] = "D";
Assert.IsFalse(Util.ArrayEquals(sig1, assoc.Sign(dict, signKeys, prefix)));
// change the ordering of signed fields and verify that the signature changes.
dict["q.c"] = "d"; // put this back first.
Assert.IsTrue(Util.ArrayEquals(sig1, assoc.Sign(dict, signKeys, prefix)));
signKeys.Insert(0, signKeys[1]);
signKeys.RemoveAt(2);
Assert.IsFalse(Util.ArrayEquals(sig1, assoc.Sign(dict, signKeys, prefix)));
}
/// <summary>
/// Creates a new association of a given type at an OpenID Provider.
/// </summary>
/// <param name="protocol">The protocol.</param>
/// <param name="associationType">Type of the association (i.e. HMAC-SHA1 or HMAC-SHA256)</param>
/// <param name="associationUse">A value indicating whether the new association will be used privately by the Provider for "dumb mode" authentication
/// or shared with the Relying Party for "smart mode" authentication.</param>
/// <param name="associationStore">The Provider's association store.</param>
/// <param name="securitySettings">The security settings of the Provider.</param>
/// <returns>
/// The newly created association.
/// </returns>
/// <remarks>
/// The new association is NOT automatically put into an association store. This must be done by the caller.
/// </remarks>
internal static HmacShaAssociation Create(Protocol protocol, string associationType, AssociationRelyingPartyType associationUse, IProviderAssociationStore associationStore, ProviderSecuritySettings securitySettings)
{
Requires.NotNull(protocol, "protocol");
Requires.NotNullOrEmpty(associationType, "associationType");
Requires.NotNull(associationStore, "associationStore");
Requires.NotNull(securitySettings, "securitySettings");
int secretLength = HmacShaAssociation.GetSecretLength(protocol, associationType);
// Generate the secret that will be used for signing
byte[] secret = MessagingUtilities.GetCryptoRandomData(secretLength);
TimeSpan lifetime;
if (associationUse == AssociationRelyingPartyType.Smart)
{
if (!securitySettings.AssociationLifetimes.TryGetValue(associationType, out lifetime))
{
lifetime = DefaultMaximumLifetime;
}
}
else
{
lifetime = HmacShaAssociation.DumbSecretLifetime;
}
string handle = associationStore.Serialize(secret, DateTime.UtcNow + lifetime, associationUse == AssociationRelyingPartyType.Dumb);
Assumes.True(protocol != null); // All the way up to the method call, the condition holds, yet we get a Requires failure next
Assumes.True(secret != null);
Assumes.True(!string.IsNullOrEmpty(associationType));
var result = HmacShaAssociation.Create(protocol, associationType, handle, secret, lifetime);
return(result);
}
/// <summary>
/// Creates a Provider's response to an incoming association request.
/// </summary>
/// <param name="associationStore">The association store where a new association (if created) will be stored. Must not be null.</param>
/// <param name="securitySettings">The security settings on the Provider.</param>
/// <returns>
/// The appropriate association response that is ready to be sent back to the Relying Party.
/// </returns>
/// <remarks>
/// <para>If an association is created, it will be automatically be added to the provided
/// association store.</para>
/// <para>Successful association response messages will derive from <see cref="AssociateSuccessfulResponse"/>.
/// Failed association response messages will derive from <see cref="AssociateUnsuccessfulResponse"/>.</para>
/// </remarks>
internal IProtocolMessage CreateResponse(IAssociationStore <AssociationRelyingPartyType> associationStore, ProviderSecuritySettings securitySettings)
{
Contract.Requires <ArgumentNullException>(associationStore != null);
Contract.Requires <ArgumentNullException>(securitySettings != null);
IProtocolMessage response;
if (securitySettings.IsAssociationInPermittedRange(Protocol, this.AssociationType) &&
HmacShaAssociation.IsDHSessionCompatible(Protocol, this.AssociationType, this.SessionType))
{
response = this.CreateResponseCore();
// Create and store the association if this is a successful response.
var successResponse = response as AssociateSuccessfulResponse;
if (successResponse != null)
{
Association association = successResponse.CreateAssociation(this, securitySettings);
associationStore.StoreAssociation(AssociationRelyingPartyType.Smart, association);
}
}
else
{
response = this.CreateUnsuccessfulResponse(securitySettings);
}
return(response);
}
public void Sign()
{
Association assoc1 = HmacShaAssociation.Create(Protocol.Default, Protocol.Default.Args.SignatureAlgorithm.HMAC_SHA1, "h1", this.sha1Secret, TimeSpan.FromMinutes(2));
Association assoc2 = HmacShaAssociation.Create(Protocol.Default, Protocol.Default.Args.SignatureAlgorithm.HMAC_SHA1, "h2", this.sha1Secret2, TimeSpan.FromMinutes(2));
var data = new byte[] { 0xdd, 0xcc };
// sign once and verify that it's sane
byte[] signature1 = assoc1.Sign(data);
Assert.That(signature1, Is.Not.Null);
Assert.That(signature1.Length, Is.Not.EqualTo(0));
// sign again and make sure it's different
byte[] signature2 = assoc2.Sign(data);
Assert.That(signature2, Is.Not.Null);
Assert.That(signature2.Length, Is.Not.EqualTo(0));
Assert.That(signature1, Is.Not.EqualTo(signature2));
// sign again with the same secret and make sure it's the same.
Assert.That(assoc1.Sign(data), Is.EqualTo(signature1));
// now change the data and make sure signature changes
data[1] = 0xee;
Assert.That(assoc1.Sign(data), Is.Not.EqualTo(signature1));
}
public static AssociateRequest Create(OpenIdRelyingParty relyingParty, ServiceEndpoint provider)
{
if (relyingParty == null)
{
throw new ArgumentNullException("relyingParty");
}
if (provider == null)
{
throw new ArgumentNullException("provider");
}
string assoc_type, session_type;
if (HmacShaAssociation.TryFindBestAssociation(provider.Protocol,
relyingParty.Settings.MinimumHashBitLength, relyingParty.Settings.MaximumHashBitLength,
true, out assoc_type, out session_type))
{
return(Create(relyingParty, provider, assoc_type, session_type, true));
}
else
{
// There are no associations that meet all requirements.
Logger.Warn("Security requirements and protocol combination knock out all possible association types. Dumb mode forced.");
return(null);
}
}
public static AssociateRequest Create(OpenIdRelyingParty relyingParty, ServiceEndpoint provider)
{
if (relyingParty == null)
{
throw new ArgumentNullException("relyingParty");
}
if (provider == null)
{
throw new ArgumentNullException("provider");
}
string assoc_type, session_type;
bool requireDiffieHellman = !string.Equals(provider.ProviderEndpoint.Scheme, Uri.UriSchemeHttps, StringComparison.OrdinalIgnoreCase);
if (HmacShaAssociation.TryFindBestAssociation(provider.Protocol,
relyingParty.Settings.MinimumHashBitLength, relyingParty.Settings.MaximumHashBitLength,
requireDiffieHellman, out assoc_type, out session_type))
{
return(Create(relyingParty, provider, assoc_type, session_type, true));
}
else
{
// There are no associations that meet all requirements.
//Logger.Warn("Security requirements and protocol combination knock out all possible association types. Dumb mode forced.");
return(null);
}
}
/// <summary>
/// Called to create the Association based on a request previously given by the Relying Party.
/// </summary>
/// <param name="request">The prior request for an association.</param>
/// <param name="securitySettings">The security settings of the Provider.</param>
/// <returns>The created association.</returns>
/// <remarks>
/// <para>The caller will update this message's
/// <see cref="AssociateSuccessfulResponse.ExpiresIn"/> and
/// <see cref="AssociateSuccessfulResponse.AssociationHandle"/>
/// properties based on the <see cref="Association"/> returned by this method, but any other
/// association type specific properties must be set by this method.</para>
/// <para>The response message is updated to include the details of the created association by this method,
/// but the resulting association is <i>not</i> added to the association store and must be done by the caller.</para>
/// </remarks>
protected override Association CreateAssociationAtProvider(AssociateRequest request, ProviderSecuritySettings securitySettings)
{
Association association = HmacShaAssociation.Create(Protocol, this.AssociationType, AssociationRelyingPartyType.Smart, securitySettings);
this.MacKey = association.SecretKey;
return(association);
}
public void Best()
{
Association a = HmacShaAssociation.Create(
Protocol.Default,
Protocol.Default.Args.SignatureAlgorithm.HMAC_SHA1,
"h1",
this.sha1Secret,
TimeSpan.FromHours(1));
Association b = HmacShaAssociation.Create(
Protocol.Default,
Protocol.Default.Args.SignatureAlgorithm.HMAC_SHA1,
"h2",
this.sha1Secret,
TimeSpan.FromHours(1));
this.assocs.Set(a);
this.assocs.Set(b);
// make b the best by making a older
a.Issued -= TimeSpan.FromHours(1);
Assert.AreSame(b, this.assocs.Best.FirstOrDefault());
// now make a the best
b.Issued -= TimeSpan.FromHours(2);
Assert.AreSame(a, this.assocs.Best.FirstOrDefault());
}
/// <summary>
/// Creates the association at the provider side after the association request has been received.
/// </summary>
/// <param name="request">The association request.</param>
/// <param name="securitySettings">The security settings of the Provider.</param>
/// <returns>The newly created association.</returns>
/// <remarks>
/// The response message is updated to include the details of the created association by this method,
/// but the resulting association is <i>not</i> added to the association store and must be done by the caller.
/// </remarks>
protected override Association CreateAssociationAtProvider(AssociateRequest request, ProviderSecuritySettings securitySettings)
{
ErrorUtilities.VerifyArgumentNotNull(request, "request");
var diffieHellmanRequest = request as AssociateDiffieHellmanRequest;
ErrorUtilities.VerifyArgument(diffieHellmanRequest != null, "request");
ErrorUtilities.VerifyArgumentNotNull(securitySettings, "securitySettings");
this.SessionType = this.SessionType ?? request.SessionType;
// Go ahead and create the association first, complete with its secret that we're about to share.
Association association = HmacShaAssociation.Create(this.Protocol, this.AssociationType, AssociationRelyingPartyType.Smart, securitySettings);
this.AssociationHandle = association.Handle;
this.ExpiresIn = association.SecondsTillExpiration;
// We now need to securely communicate the secret to the relying party using Diffie-Hellman.
// We do this by performing a DH algorithm on the secret and setting a couple of properties
// that will be transmitted to the Relying Party. The RP will perform an inverse operation
// using its part of a DH secret in order to decrypt the shared secret we just invented
// above when we created the association.
DiffieHellman dh = new DiffieHellmanManaged(
diffieHellmanRequest.DiffieHellmanModulus ?? AssociateDiffieHellmanRequest.DefaultMod,
diffieHellmanRequest.DiffieHellmanGen ?? AssociateDiffieHellmanRequest.DefaultGen,
AssociateDiffieHellmanRequest.DefaultX);
HashAlgorithm hasher = DiffieHellmanUtilities.Lookup(this.Protocol, this.SessionType);
this.DiffieHellmanServerPublic = DiffieHellmanUtilities.EnsurePositive(dh.CreateKeyExchange());
this.EncodedMacKey = DiffieHellmanUtilities.SHAHashXorSecret(hasher, dh, diffieHellmanRequest.DiffieHellmanConsumerPublic, association.SecretKey);
return(association);
}
public async Task CreateRequest()
{
var rp = this.CreateRelyingParty();
StoreAssociation(rp, OPUri, HmacShaAssociation.Create("somehandle", new byte[20], TimeSpan.FromDays(1)));
Identifier id = Identifier.Parse(GetMockIdentifier(ProtocolVersion.V20));
var req = await rp.CreateRequestAsync(id, RPRealmUri, RPUri);
Assert.IsNotNull(req);
}
public void CreateRequests()
{
var rp = this.CreateRelyingParty();
StoreAssociation(rp, OPUri, HmacShaAssociation.Create("somehandle", new byte[20], TimeSpan.FromDays(1)));
Identifier id = Identifier.Parse(GetMockIdentifier(ProtocolVersion.V20));
var requests = rp.CreateRequests(id, RPRealmUri, RPUri);
Assert.AreEqual(1, requests.Count());
}
public void HandleLifecycle()
{
Association a = HmacShaAssociation.Create(Protocol.Default, Protocol.Default.Args.SignatureAlgorithm.HMAC_SHA1,
"somehandle", sha1Secret, TimeSpan.FromDays(1));
assocs.Set(a);
Assert.AreSame(a, assocs.Get(a.Handle));
Assert.IsTrue(assocs.Remove(a.Handle));
Assert.IsNull(assocs.Get(a.Handle));
Assert.IsFalse(assocs.Remove(a.Handle));
}
public void Properties()
{
string handle = "somehandle";
TimeSpan lifetime = TimeSpan.FromMinutes(2);
Association assoc = HmacShaAssociation.Create(Protocol.Default, Protocol.Default.Args.SignatureAlgorithm.HMAC_SHA1, handle, this.sha1Secret, lifetime);
Assert.IsFalse(assoc.IsExpired);
Assert.IsTrue(Math.Abs((DateTime.Now - assoc.Issued.ToLocalTime()).TotalSeconds) < deltaDateTime.TotalSeconds);
Assert.IsTrue(Math.Abs((DateTime.Now.ToLocalTime() + lifetime - assoc.Expires.ToLocalTime()).TotalSeconds) < deltaDateTime.TotalSeconds);
Assert.AreEqual(handle, assoc.Handle);
Assert.IsTrue(Math.Abs(lifetime.TotalSeconds - assoc.SecondsTillExpiration) < deltaDateTime.TotalSeconds);
Assert.IsTrue(MessagingUtilities.AreEquivalent(this.sha1Secret, assoc.SecretKey));
Assert.AreEqual(0, assoc.Issued.Millisecond, "No milliseconds because this can be cut off in conversions.");
}
public void Properties()
{
string handle = "somehandle";
TimeSpan lifetime = TimeSpan.FromMinutes(2);
Association assoc = HmacShaAssociation.Create(Protocol.Default, Protocol.Default.Args.SignatureAlgorithm.HMAC_SHA1, handle, this.sha1Secret, lifetime);
Assert.IsFalse(assoc.IsExpired);
Assert.That(assoc.Issued, Is.EqualTo(DateTime.UtcNow).Within(deltaDateTime));
Assert.That(assoc.Expires, Is.EqualTo(DateTime.UtcNow + lifetime).Within(deltaDateTime));
Assert.That(assoc.Handle, Is.EqualTo(handle));
Assert.That(assoc.SecondsTillExpiration, Is.EqualTo(lifetime.TotalSeconds).Within(deltaDateTime.TotalSeconds));
Assert.That(assoc.SecretKey, Is.EqualTo(this.sha1Secret));
Assert.That(assoc.Issued.Millisecond, Is.EqualTo(0), "No milliseconds because this can be cut off in conversions.");
}
/// <summary>
/// Creates the association at relying party side after the association response has been received.
/// </summary>
/// <param name="request">The original association request that was already sent and responded to.</param>
/// <returns>The newly created association.</returns>
/// <remarks>
/// The resulting association is <i>not</i> added to the association store and must be done by the caller.
/// </remarks>
public Association CreateAssociationAtRelyingParty(AssociateRequest request)
{
var diffieHellmanRequest = request as AssociateDiffieHellmanRequest;
ErrorUtilities.VerifyArgument(diffieHellmanRequest != null, OpenIdStrings.DiffieHellmanAssociationRequired);
HashAlgorithm hasher = DiffieHellmanUtilities.Lookup(Protocol, this.SessionType);
byte[] associationSecret = DiffieHellmanUtilities.SHAHashXorSecret(hasher, diffieHellmanRequest.Algorithm, this.DiffieHellmanServerPublic, this.EncodedMacKey);
Association association = HmacShaAssociation.Create(Protocol, this.AssociationType, this.AssociationHandle, associationSecret, TimeSpan.FromSeconds(this.ExpiresIn));
return(association);
}
public virtual Association CreateAssociation(AssociationRelyingPartyType associationType, OpenIdProvider provider)
{
if (provider == null && associationType == AssociationRelyingPartyType.Smart)
{
throw new ArgumentNullException("provider", "For Smart associations, the provider must be given.");
}
string assoc_type;
Protocol associationProtocol;
if (associationType == AssociationRelyingPartyType.Dumb)
{
// We'll just use the best association available.
associationProtocol = Protocol.Default;
assoc_type = associationProtocol.Args.SignatureAlgorithm.Best;
}
else
{
associationProtocol = provider.Protocol;
assoc_type = Util.GetRequiredArg(provider.Query, provider.Protocol.openid.assoc_type);
Debug.Assert(Array.IndexOf(provider.Protocol.Args.SignatureAlgorithm.All, assoc_type) >= 0, "This should have been checked by our caller.");
}
int secretLength = HmacShaAssociation.GetSecretLength(associationProtocol, assoc_type);
RNGCryptoServiceProvider generator = new RNGCryptoServiceProvider();
byte[] secret = new byte[secretLength];
byte[] uniq_bytes = new byte[4];
string uniq;
string handle;
HmacShaAssociation assoc;
generator.GetBytes(secret);
generator.GetBytes(uniq_bytes);
uniq = Convert.ToBase64String(uniq_bytes);
double seconds = DateTime.UtcNow.Subtract(Association.UnixEpoch).TotalSeconds;
handle = "{{" + assoc_type + "}{" + seconds + "}{" + uniq + "}";
TimeSpan lifeSpan = associationType == AssociationRelyingPartyType.Dumb ? dumbSecretLifetime : smartAssociationLifetime;
assoc = HmacShaAssociation.Create(secretLength, handle, secret, lifeSpan);
store.StoreAssociation(associationType, assoc);
return(assoc);
}
/// <summary>
/// Gets a private Provider association used for signing messages in "dumb" mode.
/// </summary>
/// <returns>An existing or newly created association.</returns>
private Association GetDumbAssociationForSigning()
{
// If no assoc_handle was given or it was invalid, the only thing
// left to do is sign a message using a 'dumb' mode association.
Protocol protocol = Protocol.Default;
Association association = this.opAssociations.GetAssociation(AssociationRelyingPartyType.Dumb, this.opSecuritySettings);
if (association == null)
{
association = HmacShaAssociation.Create(protocol, protocol.Args.SignatureAlgorithm.HMAC_SHA256, AssociationRelyingPartyType.Dumb, this.opSecuritySettings);
this.opAssociations.StoreAssociation(AssociationRelyingPartyType.Dumb, association);
}
return(association);
}
/// <summary>
/// Simulates an extension request and response.
/// </summary>
/// <param name="protocol">The protocol to use in the roundtripping.</param>
/// <param name="requests">The extensions to add to the request message.</param>
/// <param name="responses">The extensions to add to the response message.</param>
/// <remarks>
/// This method relies on the extension objects' Equals methods to verify
/// accurate transport. The Equals methods should be verified by separate tests.
/// </remarks>
internal static void Roundtrip(
Protocol protocol,
IEnumerable <IOpenIdMessageExtension> requests,
IEnumerable <IOpenIdMessageExtension> responses)
{
ProviderSecuritySettings securitySettings = new ProviderSecuritySettings();
Association association = HmacShaAssociation.Create(protocol, protocol.Args.SignatureAlgorithm.Best, AssociationRelyingPartyType.Smart, securitySettings);
var coordinator = new OpenIdCoordinator(
rp => {
RegisterExtension(rp.Channel, Mocks.MockOpenIdExtension.Factory);
var requestBase = new CheckIdRequest(protocol.Version, OpenIdTestBase.OPUri, AuthenticationRequestMode.Immediate);
OpenIdTestBase.StoreAssociation(rp, OpenIdTestBase.OPUri, association);
requestBase.AssociationHandle = association.Handle;
requestBase.ClaimedIdentifier = "http://claimedid";
requestBase.LocalIdentifier = "http://localid";
requestBase.ReturnTo = OpenIdTestBase.RPUri;
foreach (IOpenIdMessageExtension extension in requests)
{
requestBase.Extensions.Add(extension);
}
rp.Channel.Send(requestBase);
var response = rp.Channel.ReadFromRequest <PositiveAssertionResponse>();
var receivedResponses = response.Extensions.Cast <IOpenIdMessageExtension>();
CollectionAssert <IOpenIdMessageExtension> .AreEquivalentByEquality(responses.ToArray(), receivedResponses.ToArray());
},
op => {
RegisterExtension(op.Channel, Mocks.MockOpenIdExtension.Factory);
op.AssociationStore.StoreAssociation(AssociationRelyingPartyType.Smart, association);
var request = op.Channel.ReadFromRequest <CheckIdRequest>();
var response = new PositiveAssertionResponse(request);
var receivedRequests = request.Extensions.Cast <IOpenIdMessageExtension>();
CollectionAssert <IOpenIdMessageExtension> .AreEquivalentByEquality(requests.ToArray(), receivedRequests.ToArray());
foreach (var extensionResponse in responses)
{
response.Extensions.Add(extensionResponse);
}
op.Channel.Send(response);
});
coordinator.Run();
}
public async Task CreateRequestsWithEndpointFilter()
{
var rp = this.CreateRelyingParty();
StoreAssociation(rp, OPUri, HmacShaAssociation.Create("somehandle", new byte[20], TimeSpan.FromDays(1)));
Identifier id = Identifier.Parse(GetMockIdentifier(ProtocolVersion.V20));
rp.EndpointFilter = opendpoint => true;
var requests = await rp.CreateRequestsAsync(id, RPRealmUri, RPUri);
Assert.AreEqual(1, requests.Count());
rp.EndpointFilter = opendpoint => false;
requests = await rp.CreateRequestsAsync(id, RPRealmUri, RPUri);
Assert.AreEqual(0, requests.Count());
}
void initializeAssociation()
{
string assoc_type = Util.GetRequiredArg(Args, Protocol.openidnp.assoc_type);
if (Array.IndexOf(Protocol.Args.SignatureAlgorithm.All, assoc_type) >= 0)
{
byte[] secret;
string session_type;
if (!Args.TryGetValue(Protocol.openidnp.session_type, out session_type) ||
Protocol.Args.SessionType.NoEncryption.Equals(session_type, StringComparison.Ordinal))
{
secret = getDecoded(Protocol.openidnp.mac_key);
}
else
{
try {
byte[] dh_server_public = getDecoded(Protocol.openidnp.dh_server_public);
byte[] enc_mac_key = getDecoded(Protocol.openidnp.enc_mac_key);
secret = DiffieHellmanUtil.SHAHashXorSecret(DiffieHellmanUtil.Lookup(Protocol, session_type), DH, dh_server_public, enc_mac_key);
} catch (ArgumentException ex) {
throw new OpenIdException(string.Format(CultureInfo.CurrentCulture,
Strings.InvalidOpenIdQueryParameterValue,
Protocol.openid.session_type, session_type), ex);
}
}
string assocHandle = Util.GetRequiredArg(Args, Protocol.openidnp.assoc_handle);
TimeSpan expiresIn = new TimeSpan(0, 0, Convert.ToInt32(Util.GetRequiredArg(Args, Protocol.openidnp.expires_in), CultureInfo.InvariantCulture));
try {
Association = HmacShaAssociation.Create(Protocol, assoc_type,
assocHandle, secret, expiresIn);
} catch (ArgumentException ex) {
throw new OpenIdException(string.Format(CultureInfo.CurrentCulture,
Strings.InvalidOpenIdQueryParameterValue,
Protocol.openid.assoc_type, assoc_type), ex);
}
}
else
{
throw new OpenIdException(string.Format(CultureInfo.CurrentCulture,
Strings.InvalidOpenIdQueryParameterValue,
Protocol.openid.assoc_type, assoc_type));
}
}
public void Sign()
{
Association assoc1 = HmacShaAssociation.Create(Protocol.Default, Protocol.Default.Args.SignatureAlgorithm.HMAC_SHA1,
"h1", sha1Secret, TimeSpan.FromMinutes(2));
Association assoc2 = HmacShaAssociation.Create(Protocol.Default, Protocol.Default.Args.SignatureAlgorithm.HMAC_SHA1,
"h2", sha1Secret2, TimeSpan.FromMinutes(2));
var dict = new Dictionary <string, string>();
dict.Add("a", "b");
dict.Add("c", "d");
var keys = new List <string>();
keys.Add("a");
keys.Add("c");
// sign once and verify that it's sane
byte[] signature1 = assoc1.Sign(dict, keys);
Assert.IsNotNull(signature1);
Assert.AreNotEqual(0, signature1.Length);
// sign again and make sure it's different
byte[] signature2 = assoc2.Sign(dict, keys);
Assert.IsNotNull(signature2);
Assert.AreNotEqual(0, signature2.Length);
Assert.IsFalse(Util.ArrayEquals(signature1, signature2));
// sign again with the same secret and make sure it's the same.
Assert.IsTrue(Util.ArrayEquals(signature1, assoc1.Sign(dict, keys)));
// now add data and make sure signature changes
dict.Add("g", "h");
keys.Add("g");
Assert.IsFalse(Util.ArrayEquals(signature1, assoc1.Sign(dict, keys)));
// now change existing data.
dict.Remove("g");
keys.Remove("g");
dict["c"] = "e";
Assert.IsFalse(Util.ArrayEquals(signature1, assoc1.Sign(dict, keys)));
dict.Remove("c");
keys.Remove("c");
Assert.IsFalse(Util.ArrayEquals(signature1, assoc1.Sign(dict, keys)));
}
/// <summary>
/// Creates an association request message that is appropriate for a given Provider.
/// </summary>
/// <param name="securityRequirements">The set of requirements the selected association type must comply to.</param>
/// <param name="provider">The provider to create an association with.</param>
/// <returns>
/// The message to send to the Provider to request an association.
/// Null if no association could be created that meet the security requirements
/// and the provider OpenID version.
/// </returns>
internal static AssociateRequest Create(SecuritySettings securityRequirements, ProviderEndpointDescription provider)
{
ErrorUtilities.VerifyArgumentNotNull(securityRequirements, "securityRequirements");
ErrorUtilities.VerifyArgumentNotNull(provider, "provider");
// Apply our knowledge of the endpoint's transport, OpenID version, and
// security requirements to decide the best association.
bool unencryptedAllowed = provider.Endpoint.IsTransportSecure();
bool useDiffieHellman = !unencryptedAllowed;
string associationType, sessionType;
if (!HmacShaAssociation.TryFindBestAssociation(Protocol.Lookup(provider.ProtocolVersion), true, securityRequirements, useDiffieHellman, out associationType, out sessionType))
{
// There are no associations that meet all requirements.
Logger.Warn("Security requirements and protocol combination knock out all possible association types. Dumb mode forced.");
return(null);
}
return(Create(securityRequirements, provider, associationType, sessionType));
}
/// <summary>
/// Creates an association request message that is appropriate for a given Provider.
/// </summary>
/// <param name="securityRequirements">The set of requirements the selected association type must comply to.</param>
/// <param name="provider">The provider to create an association with.</param>
/// <returns>
/// The message to send to the Provider to request an association.
/// Null if no association could be created that meet the security requirements
/// and the provider OpenID version.
/// </returns>
internal static AssociateRequest Create(SecuritySettings securityRequirements, IProviderEndpoint provider)
{
Contract.Requires <ArgumentNullException>(securityRequirements != null);
Contract.Requires <ArgumentNullException>(provider != null);
// Apply our knowledge of the endpoint's transport, OpenID version, and
// security requirements to decide the best association.
bool unencryptedAllowed = provider.Uri.IsTransportSecure();
bool useDiffieHellman = !unencryptedAllowed;
string associationType, sessionType;
if (!HmacShaAssociation.TryFindBestAssociation(Protocol.Lookup(provider.Version), true, securityRequirements, useDiffieHellman, out associationType, out sessionType))
{
// There are no associations that meet all requirements.
Logger.OpenId.Warn("Security requirements and protocol combination knock out all possible association types. Dumb mode forced.");
return(null);
}
return(Create(securityRequirements, provider, associationType, sessionType));
}
/// <summary>
/// Gets an association to use for signing new data.
/// </summary>
/// <returns>
/// The association, which may have previously existed or
/// may have been created as a result of this call.
/// </returns>
private Association GetAssociation()
{
Association privateAssociation = this.store.GetAssociation(SecretUri, this.securitySettings);
if (privateAssociation == null || !privateAssociation.HasUsefulLifeRemaining)
{
int secretLength = HmacShaAssociation.GetSecretLength(Protocol.Default, Protocol.Default.Args.SignatureAlgorithm.Best);
byte[] secret = MessagingUtilities.GetCryptoRandomData(secretLength);
privateAssociation = HmacShaAssociation.Create(this.CreateNewAssociationHandle(), secret, this.securitySettings.PrivateSecretMaximumAge);
if (!privateAssociation.HasUsefulLifeRemaining)
{
Logger.WarnFormat(
"Brand new private association has a shorter lifespan ({0}) than the maximum allowed authentication time for a user ({1}). This may lead to login failures.",
this.securitySettings.PrivateSecretMaximumAge,
DotNetOpenAuthSection.Configuration.OpenId.MaxAuthenticationTime);
}
this.store.StoreAssociation(SecretUri, privateAssociation);
}
return(privateAssociation);
}
public void SignaturesMatchKnownGood()
{
Protocol protocol = Protocol.V20;
var settings = new ProviderSecuritySettings();
var store = new AssociationMemoryStore <AssociationRelyingPartyType>();
byte[] associationSecret = Convert.FromBase64String("rsSwv1zPWfjPRQU80hciu8FPDC+GONAMJQ/AvSo1a2M=");
Association association = HmacShaAssociation.Create("mock", associationSecret, TimeSpan.FromDays(1));
store.StoreAssociation(AssociationRelyingPartyType.Smart, association);
SigningBindingElement signer = new SigningBindingElement(store, settings);
signer.Channel = new TestChannel(this.MessageDescriptions);
IndirectSignedResponse message = new IndirectSignedResponse(protocol.Version, new Uri("http://rp"));
ITamperResistantOpenIdMessage signedMessage = message;
message.ProviderEndpoint = new Uri("http://provider");
signedMessage.UtcCreationDate = DateTime.Parse("1/1/2009");
signedMessage.AssociationHandle = association.Handle;
Assert.IsNotNull(signer.ProcessOutgoingMessage(message));
Assert.AreEqual("o9+uN7qTaUS9v0otbHTuNAtbkpBm14+es9QnNo6IHD4=", signedMessage.Signature);
}
/// <summary>
/// Creates a new association with a given Provider.
/// </summary>
/// <param name="provider">The provider to create an association with.</param>
/// <param name="associateRequest">The associate request. May be <c>null</c>, which will always result in a <c>null</c> return value..</param>
/// <param name="retriesRemaining">The number of times to try the associate request again if the Provider suggests it.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>
/// The newly created association, or null if no association can be created with
/// the given Provider given the current security settings.
/// </returns>
/// <exception cref="ProtocolException">Create if an error occurs while creating the new association.</exception>
private async Task <Association> CreateNewAssociationAsync(IProviderEndpoint provider, AssociateRequest associateRequest, int retriesRemaining, CancellationToken cancellationToken)
{
Requires.NotNull(provider, "provider");
if (associateRequest == null || retriesRemaining < 0)
{
// this can happen if security requirements and protocol conflict
// to where there are no association types to choose from.
return(null);
}
Exception exception = null;
try {
var associateResponse = await this.channel.RequestAsync(associateRequest, cancellationToken);
var associateSuccessfulResponse = associateResponse as IAssociateSuccessfulResponseRelyingParty;
var associateUnsuccessfulResponse = associateResponse as AssociateUnsuccessfulResponse;
if (associateSuccessfulResponse != null)
{
Association association = associateSuccessfulResponse.CreateAssociationAtRelyingParty(associateRequest);
this.associationStore.StoreAssociation(provider.Uri, association);
return(association);
}
else if (associateUnsuccessfulResponse != null)
{
if (string.IsNullOrEmpty(associateUnsuccessfulResponse.AssociationType))
{
Logger.OpenId.Debug("Provider rejected an association request and gave no suggestion as to an alternative association type. Giving up.");
return(null);
}
if (!this.securitySettings.IsAssociationInPermittedRange(Protocol.Lookup(provider.Version), associateUnsuccessfulResponse.AssociationType))
{
Logger.OpenId.DebugFormat("Provider rejected an association request and suggested '{0}' as an association to try, which this Relying Party does not support. Giving up.", associateUnsuccessfulResponse.AssociationType);
return(null);
}
if (retriesRemaining <= 0)
{
Logger.OpenId.Debug("Unable to agree on an association type with the Provider in the allowed number of retries. Giving up.");
return(null);
}
// Make sure the Provider isn't suggesting an incompatible pair of association/session types.
Protocol protocol = Protocol.Lookup(provider.Version);
ErrorUtilities.VerifyProtocol(
HmacShaAssociation.IsDHSessionCompatible(protocol, associateUnsuccessfulResponse.AssociationType, associateUnsuccessfulResponse.SessionType),
OpenIdStrings.IncompatibleAssociationAndSessionTypes,
associateUnsuccessfulResponse.AssociationType,
associateUnsuccessfulResponse.SessionType);
associateRequest = AssociateRequestRelyingParty.Create(this.securitySettings, provider, associateUnsuccessfulResponse.AssociationType, associateUnsuccessfulResponse.SessionType);
return(await this.CreateNewAssociationAsync(provider, associateRequest, retriesRemaining - 1, cancellationToken));
}
else
{
throw new ProtocolException(MessagingStrings.UnexpectedMessageReceivedOfMany);
}
} catch (ProtocolException ex) {
exception = ex;
}
Assumes.NotNull(exception);
// If the association failed because the remote server can't handle Expect: 100 Continue headers,
// then our web request handler should have already accomodated for future calls. Go ahead and
// immediately make one of those future calls now to try to get the association to succeed.
if (UntrustedWebRequestHandler.IsExceptionFrom417ExpectationFailed(exception))
{
return(await this.CreateNewAssociationAsync(provider, associateRequest, retriesRemaining - 1, cancellationToken));
}
// Since having associations with OPs is not totally critical, we'll log and eat
// the exception so that auth may continue in dumb mode.
Logger.OpenId.ErrorFormat("An error occurred while trying to create an association with {0}. {1}", provider.Uri, exception);
return(null);
}