Apple push notification error

Question

Hi,

I got following error while calling apple push notification.

Channel Exception: PushSharp.Apple.ApplePushService -> System.Security.Authentic
ation.AuthenticationException: A call to SSPI failed, see inner exception. --->
System.ComponentModel.Win32Exception: The certificate is revoked
   --- End of inner exception stack trace ---
   at System.Net.Security.SslState.StartSendAuthResetSignal(ProtocolToken messag
e, AsyncProtocolRequest asyncRequest, Exception exception)
   at System.Net.Security.SslState.CheckCompletionBeforeNextReceive(ProtocolToke
n message, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.StartSendBlob(Byte[] incoming, Int32 count, A
syncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 coun
t, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.StartReadFrame(Byte[] buffer, Int32 readBytes
, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocol
Request asyncRequest)
   at System.Net.Security.SslState.CheckCompletionBeforeNextReceive(ProtocolToke
n message, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.StartSendBlob(Byte[] incoming, Int32 count, A
syncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 coun
t, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.StartReadFrame(Byte[] buffer, Int32 readBytes
, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocol
Request asyncRequest)
   at System.Net.Security.SslState.CheckCompletionBeforeNextReceive(ProtocolToke
n message, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.StartSendBlob(Byte[] incoming, Int32 count, A
syncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 coun
t, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.StartReadFrame(Byte[] buffer, Int32 readBytes
, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocol
Request asyncRequest)
   at System.Net.Security.SslState.CheckCompletionBeforeNextReceive(ProtocolToke
n message, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.StartSendBlob(Byte[] incoming, Int32 count, A
syncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 coun
t, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.StartReadFrame(Byte[] buffer, Int32 readBytes
, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocol
Request asyncRequest)
   at System.Net.Security.SslState.CheckCompletionBeforeNextReceive(ProtocolToke
n message, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.StartSendBlob(Byte[] incoming, Int32 count, A
syncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.ForceAuthentication(Boolean receiveFirst, Byt
e[] buffer, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.ProcessAuthentication(LazyAsyncResult lazyRes
ult)
   at System.Net.Security.SslStream.AuthenticateAsClient(String targetHost, X509
CertificateCollection clientCertificates, SslProtocols enabledSslProtocols, Bool
ean checkCertificateRevocation)
   at PushSharp.Apple.FeedbackService.Run(ApplePushChannelSettings settings, Can
cellationToken cancelToken) in d:\Workarea\Work\PushSharp-master\PushSharp-maste
r\PushSharp.Apple\FeedbackService.cs:line 66
   at PushSharp.Apple.ApplePushService.<>c__DisplayClass4.<.ctor>b__1(Object sta
te) in d:\Workarea\Work\PushSharp-master\PushSharp-master\PushSharp.Apple\AppleP
ushService.cs:line 51
Failure: PushSharp.Apple.ApplePushService -> The maximum number of Send attempts
 to send the notification was reached! -> {"aps":{"alert":"Hello World!","badge"
:7,"sound":"default"}}

Any one can tell me the answer for this.

Answer 1

The first couple of lines indicate the error.

Channel Exception: PushSharp.Apple.ApplePushService -> System.Security.Authentic
ation.AuthenticationException: A call to SSPI failed, see inner exception. --->
System.ComponentModel.Win32Exception: The certificate is revoked

The cert has been revoked and therefore cannot be used.  Whether that is your cert or Apple's I don't know.  You'll need to verify your cert and follow up with Apple to work out the issue.

Michael Taylor
http://msmvps.com/blogs/p3net

Answer 2

The issue ended up being related to the export of the p12.