Security :: How To Implement Digital Signature
Aug 12, 2010
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.
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Jan 3, 2011
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#.
I tried but I am unable to do it.
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Sep 30, 2010
I have problem to create digital signature. I created console application and it works there but when I want to run it at server there is exception. It looks like I have problem with reference to the file.
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Feb 19, 2010
I posted this previously but it ended up in Languages/C# rather than here. I'm not sure if I chose the wrong forum or the admin moved it. I wanted it in here so I'm re-posting it:
I have an APK file (android application archive, same as JAR file format) that I need to determine whether or not is signed, and if so, extract the certificate info.
The JDK provides a command line tool to do this:
jarsigner -verbose -certs -verify file.apk
I'm trying to determine if there's a way using the Security classes to accomplish the same thing in C# code.
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Feb 24, 2010
I have never write code like this... so I am trying to explian what problem I meet here..
assuming I have 2 web service
one named WS1 another named WS2
WS1 (send data to WS2) → WS2 then WS2 (receive data from WS1 and do something then return result to WS1)→WS1
if I want to add digital signature between WS1 and WS2 so that WS1 connecting to WS2 , WS2 will recognize who is connecting by digital signature
what do I need if I want to do that? and how to do?
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May 20, 2010
I am currently having trouble with verifying the digital signature in a excel file. The digital signature is used to sign the Macro so that it is possible to authenticate and ensure that no one has tamper with the Macro.
Currently, I am able to check that the excel file is digitally signed. However, I can't seem to be able to verify and ensure that the digital signature is authentic. I'm using asp.net 3.5 with vb.net.
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Oct 4, 2010
I have asp.net page running under MOSS2007 and there is Access Denied error at signing (signedXml.ComputeSignature()). The code works as normal .net web application but it does not work under MOSS.
Access is denied.
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Feb 24, 2011
In the application a user will upload a PDF file and then upload a personal signature created using a digital pen. How can I embed this signature in the pdf file?
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Apr 10, 2014
i want to send email with digital signaure usind digital certificate
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Mar 31, 2011
Does anyone have any experience with importing meta data files from Ping Identity into an ACS provider?
I'm logged into my Ping Identity admin system, all fine, no problem. Then, when I export the idP file... no digital signature is included within it and thus I cannot import this file into ACS as it complains that there's no signature included.
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Mar 29, 2011
Is anyone using digital certificates in project ?I have created a digital certificate using Microsoft certificate services.I have installed this certificate on my website.When I access website over https I get digital certificate error in browser.Most common cause for this error is incorrect date/time settings on client machine. This is not the issue in my case.
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Jul 12, 2010
I have a website that needs me to use ActiveX. and there is a security policy in my office that needs me to DIGITALLY SIGNING the ActiveX ?[URL]but still couldnt understand what is the actual step that i should do. plus , the link is broken. does anyone know how to do it ?
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Aug 9, 2010
I want to create a digital signature, for my product, for creating the digital sigmature i want digital certificate. I came to know there are lot of third party available for creating digital signature. If any one know can tell some of third party for this.
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Jan 28, 2011
I am doing a project on digital watermarking. This is the process. The user will choose his image file to upload, chooses his image key(either from the visual studio gallery-folder name is Image Key, or he chooses his own from the directory).
He enters a password, and this password will be embedded into the image uploaded.
Next, there is an option to digitally watermark the image (This is where I am having problems - stuck with the codes)
Here is the work so far, and I couldn't get any further.
FileUpload UI + code behind
[Code]....
[Code]....
WatermarkController (Business Logic)
[Code]....
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Jul 20, 2010
I have an apliccattion Web, but now I will need get the digital certificate in specific form.Is possible show the dialog box (by code) wiht digital certificate list for the user choice digital certificate and then continue wiht my process ???
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Jan 28, 2010
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.
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Apr 24, 2010
[ASP.NET 3.5, FormsAuthentication, SQL Server]
In the Roles table there is Role, and RoleType.
I have 3different roles, 2 of which have sub-roles.
Example
Role----------------------Type
Adminstrator
Subscriber---Basic
Subscriber---Business
I need to implement Code Access Security, and URL based security using the roles & types...
For instance, the (Subscriber/Basic) would need to view a different set of pages, and have different access to things then a (Subscriber/Business).
I think I can handle the Code Access security with a custom attribute, but I am unsure to how enforce a User be apart of 2 roles in the URL Authorization.
I am currently using the web.config to deny/allow access to the directories/pages.
e.g.
/Areas/Admin/web.config
[Code]....
Is it possible to force the user to be apart of 2 roles with this technique?
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Jun 15, 2010
I have searched and could not find any article related to "How to implement Certificate Security in
production environment".
I could able to Create sample certificates for client and Server on my local machine and was able to authenticate my client app with the certificates . These certificates are test certificates.
How do I do this in Production. We have a domain certificate from GoDaddy which resides on the server. How do I create a Client Certificate off of that.
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Sep 25, 2010
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Before I was using database for security logic where in I was putting some codes in comma format and was looking that for specific control on form load but it have disadvantage that when some user have access to database that can alter make problem.
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Apr 14, 2010
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Mar 21, 2011
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