Hi everyone. I am working on a project to implement digital signatures of outgoing messages and decided to use M2Crypto for that. I have a certificate (in DER format) from which I extract the keys to sign the message. For some reason I keep getting an ugly segmentation fault error when I call the "sign_update" method. Given the previo...
One of my friend is working on issue related to updating expired digital certificates. He is working on Java application(Swings I guess), which has 4000 clients. All those need a digital certificate to connect to the application and this certificate expires every year. At the end of year he needs to update the certificate credentials fo...
It's possible to extract the keys of a digital certificate type A3 for use as an A1 certificate? ...
I used Crypto++ for my application. However it lacks a digital certificate parser. I know that openSSL has one, but I have to learn the whole library again. Is there some parsing library existing for C++? All I want is to read the certificate and extract some fields, including the public key. ...
Hey guys, i've been google'ing the difference between digital signature and digital certificate (asymmetric encryption) seems like they are the same. I would like to clarify if they are the same or not? many thanks!!! ...
Is there any way to programmatically determine if an .xls contains macros, without actually opening it in Excel? Also are there any methods to examine which certificate (including timestamp cert) these macros are signed with? Again without using Excel. I'm wondering in particular if there are any strings that always show up in the raw ...
I'm developing a web application, and I'd like to digitally sign a certain step in a process That is, a user of the app performs a certain action, and I'd like that event to be digitally signed. The user should use and usb token when issuing the action to digitally sign it. I'd like to know which approach do you recommend to do such a...
I am trying to write an Outlook 2007 VBA script which will look at the currently opened mail item and be able to read the properties of and save off the digital signature of said mail item. Now I realize that Outlook prevents access to encrypt/sign a new email programatically, but here I am focused on messages which have already been re...
Hi I m try to verify the sign of Digital Certificate there is two valid string 1) signdata and 2) public key but still i got some error like... aaa[B@1ba34f2 Got certificate from file Signature file is BASE64 encoded[B@1372a1a 121212 1111111111111[B@1372a1a Couldn't verify included-content CMS signature java.lang.NullPointerException...
Can i get installed certificates on my system through java something like this Eg. Certificate[] certificate = someClass.getsystemCertificates(); Is there is some api available for this???? ...
Hi , Plz help me for read out original content after verify Signdata... My Code is like this: import java.io.*; import java.util.*; import java.security.*; import java.security.Security; import java.security.cert.*; import org.bouncycastle.jce.provider.BouncyCastleProvider; import org.bouncycastle.cms.*; /* Verify INCLUDED CMS signat...
Background: I'm working on an Outlook addin which adds an attachment to outgoing emails. Support is required for all versions of Outlook. When a MailItem has been signed with a digital signature, adding an attachment to this mailItem generally fails unless you save the mail item. This removes the signature from mailitem. To me, this is ...
I make programs that a lot of people use and one thing that would be nice to have a a digital certificate so when people run it is admin, it will show the user it was made by me and it hasn't been tampered with. I have done research on this and you do have to pay. I don't mind, just can't be a whole lot. But the other thing is that.. i...
How do you add an email to your digital signature details? Digital signature details are found when a file is signed for instance by VeriSign. You then right-click on the file and choose "Digital Signatures" from the tab. You can then select the Name of the signer and select the "Details" button. I can't find this anywhere. Even Mi...
After signing exe by using VeriSign, if we right click to exe we can see "digital signature" tab which gives information about certificate. Where exactly this information will be stored? I mean how operating system will come to know which certificate is related to which file? Is there anything embed inside exe while signing? How can I wr...
I developed an app on a computer I no longer have and forgot to export my signing key. I am currently running into issues when I try and update the app. I submit the binary that has been signed with the new dist cert and key, and in ITC it says application loaded, but then when it refreshes, it goes red and just says "invalid binary", wi...
Hi everyone, is it possible to read personal digital certificates with extension Pcks#7 ( http://en.wikipedia.org/wiki/X.509#Certificate_filename_extensions ) with python? I have to develop an application using Django that authenticate its users by reading their certificate. In an initial step we are going to use an external services t...