I am using encryption/decryption logic from the following link: [URL] Code from this page is working but at times, its throwing an error while decyption as 'Length of the data to decrypt is invalid'. I have a very limited knowledge on this topic so I am no able to troubleshoot it further
I need to validate a digital signature which consists of thumb impression,signature and tokenid which is in pendrive with a columns of a table in sqlserver2008 database. I am using capicom.dll in asp.net 3.5 using c#.
These types of exceptions always irritate me because they are almost impossible to reproduce consistently and have almost no documentation other than the cryptic error itself to have any idea on how to fix the problem. So I have a Windows Service that makes a call to a .asmx web service over https on a polled interval every 20 minutes. Once in a great while the following exception message is returned:
Message: The underlying connection was closed: An unexpected error occurred on a receive.
Inner Message: System.IO.IOException: The decryption operation failed, see inner exception. ---> System.ComponentModel.Win32Exception:
The specified data could not be decrypted --- End of inner exception stack trace --- at System.Net.Security._SslStream.ProcessReadErrorCode(SecurityStatus errorCode, Byte buffer, Int32 offset, Int32 count, AsyncProtocolRequest asyncRequest, Byte extraBuffer) at System.Net.Security._SslStream.ProcessFrameBody(Int32 readBytes, Byte buffer, Int32 offset, Int32 count, AsyncProtocolRequest asyncRequest) at System.Net.Security._SslStream.StartFrameBody(Int32 readBytes, Byte buffer, Int32 offset, Int32 count, AsyncProtocolRequest asyncRequest) at System.Net.Security._SslStream.StartFrameHeader(Byte buffer, Int32 offset, Int32 count, AsyncProtocolRequest asyncRequest) at System.Net.Security._SslStream.StartReading(Byte buffer, Int32 offset, Int32 count, AsyncProtocolRequest asyncRequest) at System.Net.Security._SslStream.ProcessRead(Byte buffer, Int32 offset, Int32 count, AsyncProtocolRequest asyncRequest) at System.Net.TlsStream.Read(Byte buffer, Int32 offset, Int32 size) at System.Net.PooledStream.Read(Byte buffer, Int32 offset, Int32 size) at System.Net.Connection.SyncRead(HttpWebRequest request, Boolean userRetrievedStream, Boolean probeRead)
So from reading the above message there was an error on receive and the data could not be decrypted. The does not occur consistently, so I don't have a good way of reproducing it. I also lack at low level messaging knowledge and I feel that this is the answer behind this exception; i.e. dropped packets and an incomplete message not appearing to be the same message as sent from the service or something. Any .asmx gurus out there that can give insight and possibly prevention suggestions for the above issue?
I am going to start to work with electronic signatures for a website for my company. Whats best practices and/or implementations. Note, I am not asking for anyone to spoon feed me code. I would like to be able to use a usb signature pad and submit the signature to the website with it.
I have created a web service (.asmx) which is working fine locally.Now when a client of ours is trying to access this web servce he receives an error sayinginvalid action parameter.Any idea why this error appears..also will
I am making a call to a WCF service(Existing) from another WCF Service(New, my service), which is configured as Anonymous access. I did a service reference of my service to web application both under same solution file and web app is configured as Windows Authentication. When I call the existing WCF Service from my web app directly, everything works fine, but when I call the same existing WCF Service from my service, I got a "user does not have valid credentials" error. To avoid this error, I published my service to a server and referenced that URL to my web app. Though I got past the error, now, I am getting "Invalid Argument" error. No further information on the error.
Error source is MSCORLIB. There is no problem in the code of my service and the existing service, because if the same value that I get from the existing service is hard coded, then everything works fine. The existing service is used by many other app and it works fine. So, its a tested service. I tried to find a solution of "invalid argument" and I found few threads where others are facing the same problem when they publish a WCF service, but I did not find any proper solution for this.
I am writting a client applicatin that acesses a webservice written by another company. I need to test against this webservice but since it is live I need another place to test with. I don't have access to the code from the webservice but have added a reference to my project. I would like to create a test platform using C# which will run on IIS and not Java. I have created a basic webserive using both the NetBeans platform and the VS/C# platform. The problem I am having is if I dynamically change the web address from one to the other my client application complains that the webservice is invalid. I have verified all the calls are the same.
Are there any setting with VS/C# that allow me to configure it to behave more like the Java webservice? I don't have the server support to host the Java application for full testing along with other problems using the Java version. I have run both services in the "WCF Test Client" and can see where the WCF service uses the varibles for request and the Java uses body/request but can't get the WCF to follow that format. I read somewhere about changing the OperationContract with SoapRpcMethod but then the mentod is not longer exposed. I also tried a Web Service in .NET 3.5 instead of a WCF server but that seems to be more trouble and does not help.
The message with Action '' cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver. Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None).
have a working ASP.NET 3.5 webservice that accepts standard POST requests using an encoding type of application/x-www-form-urlencoded. I then added a method which needs to accept an uploaded file. We change the encoding type of the request to multipart/form-data so that we can get the file data and now we receive the following error:System.InvalidOperationException: Request format is invalid: multipart/form-data
I have web.config file and it is encrypted completely and hosted in one server,Now I got one requirement to change admin person mail id. So I need to decrypt the web.config file and update the mail id then encrypt the config file again. Please tell me how to do this using aspnet_regiis -pdf commands?
This is meant to be easy ...so ive been told, but still cant get it to work!I have a sql database hosted on a shared server which requires the use of sql authentication.As a result I require to encrypt my sensitive data in the config (connection strings etc).I understand that you can do this using aspnet_regiis etc, but ive been told that as I have no direct acccess to the server, I may need to program the encryption. I have seen a few examples, but as a novice I have been banging away at this, looking at an errors screen most of the time!
I used the following command to encrypt my connection string but an error ocurred, "The connection name'DatabaseConnectionString1' was not found in the applications configuration or the connection string is empty" How can I encrypt it while keeping the application working? What if I move the encrypted application to another computer? Will it work?
I am passing values through query string. I want to restrict the user to modify the url to get the unauthorized permissions.I want to encrypt the url so that user can not understand and decrypt and use in the code.How can i do this.If there is any method to restrict the user to modify the url,
I have requirement to encrypt the windows service config file and web.config connection strings, I could able to do that for web.config with aspnet_regiisC:WindowsMicrosoft.NETFramework64v2.0.50727>aspnet_regiis -pe "connectionStrings" -app "/application.ui")But I am still looking similar kind of way for windows service config file to encrypt and decrypt..exe.config file snippet as below
I have a encrpted web.config file. How to decrypt this file. Because I need to update connection string information in that file. So i need to decrypt the existing encrypted config and update the connection string then again I have to encrypt.Did not work below command. getting error(Decrypting configuration section...Failed to decrypt using provider 'RsaProtectedConfigurationProvider'. Error mess age from the provider: Bad Data.)
aspnet_regiis -pdf "connectionStrings" <physical path of the we b.config file in server>
I am new to digital signature. I have a web application developed in asp.net 3.5. In one of the module of this application I am generating pdf file and storing it on the server. The users must be able to choose a pdf file and digitally sign it with a certificate stored locally (either on their machine or in a smartcard). I do not know whether I should pass pdf file to client place to sign it or I should send Certificate object to the server.