digital-signature

I'm coding software that requires administrative access. When a UAC dialog pops up, it shows a different popup for digitally signed software than non-signed software. I believe digitally signing my software would enable users to trust my software easier. Does it cost thousands of dollars to digitally sign software, or is it free? Is there a simple way to do it? I've searched around Google and all I get is how to sign PHP, XML, and PDF files, which is not what I want. I need to sign my software executable. Just saw something about sigtool.exe? Is this the right direction? What about those

I need a function in Delphi to verify the digital signature of an external EXE or DLL. In my particular application, I am going to occasionally invoke other processes, but for security purposes I want to make sure these executables were created by our organization before running them. I have seen Microsoft's example in C , however, I do not want to waste the time translating this to Delphi if somebody else already has. I would prefer a snippet or code example over a third-party library. Thanks. Here you go: // IsCodeSigned, which verifies that the exe hasn't been modified, uses //

Following the answers given in this previous question : In Itext 7, how to get the range stream to sign a pdf? , i've tried to reimplement the two steps signing method working in Itext 5 but i encounter an issue when trying to reopen the document result of the first step (with the PdfReader or a pdf reader).(invalid document) Here is the presigning part for a document already containing an empty signature field named certification ... why is the result of this step invalid ? PdfReader reader = new PdfReader(fis); Path signfile = Files.createTempFile("sign", ".pdf"); FileOutputStream os = new

I am trying to sign an Object in a Java + JSF project. What I have done so far is create my own X509 certificate as well as a CA with XCA and install both of them on Firefox and Chrome. I have been searching for 3 days how could I access it to sign (the typical pop-up asking for select a certificate in case you have more than one installed) but I just cannot find something useful. I have seen multiple times this code line: X509Certificate[] certs = (X509Certificate[]) request.getAttribute("javax.servlet.request.X509Certificate"); but I have no clue about where can I get that request with the

I want to sign file with the SunMSCAPI provider. As public key and signatures needs to be imported using MS Crypto API. Generally generating signatures with SHA1withRSA , ends up with big-endian to little-endian (byte order) conversion. //generate keystore with java keytool $Keytool -genkey -alias tsign -keystore c:\test\tsignjks.p12 - keyalg rsa -storetype pkcs12 In Java application: //for signing and getting keystore, assuming windows certificate is installed ..ks = KeyStore.getInstance("Windows-MY","SunMSCAPI"); PrivateKey priv = ks.getKey("tsign",password); Signature rsa = Signature