So I have a problem in Vista which I can't run certain applications (well, the entier MS suite, Office, Visual Studio, etc) as an Administrator. From the looks of the problem it is caused by the Digital Certificate, and the fact that it has been "revoked". So now I have a problem, how do I un-revoke the digital certificate? Alternative...
I want to buy a 128bit SSL certificate for a website selling services. I checked http://www.rapidssl.com/ssl-certificate-products/ssl-certificate.htm and http://www.geotrust.com/ssl/compare-ssl-certificates.html. Why are the prices for QuickSSL (Geotrust, $249) and RapidSSL (rapidSSL, $69) so different? Is there any particular reason for...
I ran accross a CSR file (Certificate Signing Request) and I need to extract some information from it. There's a way to decode it using .NET Framework? ...
Can anyone please tell me if Certifying Authorities (CAs) are allowed to make modifications to the Certificate Signing Request (CSR) before actually signing the certificate with their own private key? Specifically, I'd like to know if it's valid for the CA to insert additional fields (such as EKUs) into the cert before adding their sig...
I need to implement a browser based component (most likely java applet since it needs to be cross-browser) that will allow us to digitally sign and verify data in the XadES format. What options are available and what is the best solution? ...
Has anyone came across where they have to deal with .truststore file? and knowing how to import .cer into .truststore file? I am not sure if I have to use Java Keytool or Linux command (such as openssl command). Thanks ...
Hello all, I'm struggling to put together a solution that allows security through smartcards. My clients will have a card reader and a card to identify them in the system(Web Application). I need to setup an activeX control that will read the card, extract the information I need and send it to the web server. It's my first time worki...
Hello, I'm trying to digitally sign a PDF file using THIS project as an example. When it executes st.Close(); I am getting the infamous "Object reference not set to instance of an object". I have no idea of why this is happening, st is an instance of an object and it is used above. This exception is happening inside .Close() and as I d...
My company has a web document management application and I have been assigned to find a way to sign pdf files with the user digital certificate. The pdfs can go from a few kb to over 100Mb, this is over the internet so the signature must take place at the web server. In order to do this i have built an activeX control that asks the use...
Hello, I've been wrestling with a problem, maybe you guys can point me in the right direction. I'm trying to digitally sign a pdf, on the webserver, over an https connection. At page load i'm doing as so: HttpClientCertificate cs = Request.ClientCertificate; X509Certificate card = new X509Certificate(cs.Certificate); Org.BouncyCastle...
Hi, To get things working as they should with AS2 protocol signatures, I need a digital certificate with keyUsage extensions 0 and/or 1 (nonRepudiation and/or digitalSignature). It's not a problem to generate it and self-sign it, but since it will be used for some serious stuff like e-invoices, I need it to be issued by a trusted third...
Well... I have a web page that requires a digital certificate. When i first Load the page I get a dialogue window asking for the certificate. If I select it then everything work great :) However, if I press cancel and then re-enter the page I am not prompted for the certificate... The page is rendered and a "The page requires a client c...
I am building a system for distributing packages (.zip archives) created by different organizations. I'd like a way to verify that the publisher of a package is indeed who they claim to be, and that the file has not been tampered with. To verify the publisher, a system similar to what is used by web browsers is required - e.g., my appl...
Hi - Looking for some advice about the use of client certs to retro-fit access control to an existing app. Our company has an existing intranet app (classic ASP/IIS) which we licence to others. Up till now it's been hosted within each organisation that used it and the security consisted of "if you're able to access the intranet you're a...
I need to be able to remove a specific certificate from each PC in my organization. Yes, I could go seat-to-seat, but I have until Thursday to pull it off, and I don't have the manpower to go seat-to-seat. Is there a programmatic way of doing this using C#? ...
Hi, I'd like to check programatically if a file has been digitally signed or not. For the moment, I found a rather obscure code in MSDN, that doesn't compile... Any idea on the subject? An external tool with command line would also be great, by the way. ...
An internal team, separate from my own, has stated that they prefer to do incoming authentication based on client certificates. Which sounds good to me, except that I haven't messed with them before and aren't quite sure where to start researching (Wikipedia went straight into a lot of detail that I'm not sure is pertinent to what I need...
I'm attempting to add SSL to my server for sending customer details to a client. It appears to be working on the Server side with the digital certificate (.pfx) being loaded succesfully. The problem comes when I try to connect with the client. An AuthenticationException is thrown stating that the remote certificate is invalid. The cert...
Hello, I'm using digital certificates to sign a transaction results, also, I need to print out a slip with information and digital signature on it. I was wondering if there is any shorter representation of X.509 digital signature specifically designed for printed media? Maybe some kind of hash or something similar... Thank you very mu...
Does anyone know how I could go about finding out when a certificate for user is set to expire? I know I can get pull all of the certificates for a given user by usin the following code: Set objUserTemplate = _ GetObject("LDAP://cn=userTemplate,OU=Management,dc=NA,dc=fabrikam,dc=com") arrUserCertificates = objUserTemplate.GetEx("us...