By executing the program, you will get the PDF document as follows. In the past I have been making secure TcpListener by exporting a PFX certificate with a password, but would like to know if this step could be skipped. The constructor arguments allow the Cert only part, but encrypting fails then because there is no private key. When an X509 certificate is presented to someone, .NET of course strips out the private key. An administrator then establishes a trust relationship between the two by exchanging the public key thumbprints of each service to the other. Sign in End result: hang. So this is great, however I have to issue an openssl command to make a pfx file from the Certificate and the Private Key, then make up some password. Refer here to explore the rich set of Syncfusion Essential PDF features. [API Proposal]: Create PFX file (PKCS#12) from .cer .key and - Github Starting in .NET Core 3.0 you can do this relatively simply: (of course, if you had a PEM you need to "de-PEM" it, by extracting the contents between the BEGIN and END delimiters and running it through Convert.FromBase64String in order to get binaryEncoding). One option is to try stopping any services that run under that account (including application pools) and then logging in interactively to the computer as the user to force a profile to be created. I'm already doing exactly this to store xml files, I don't know why, but some time ago I tried doing that and it didn't work out to me, and figured certificates didn't worked in such a simple manner like I was doing with my xml files. Create X509Certificate2 from Cert and Key, without making a PFX file, Digital signature in c# without using BouncyCastle. Starting in .NET Core 3.0 you can do this relatively simply: (of course, if you had a PEM you need to "de-PEM" it, by extracting the contents between the BEGIN and END delimiters and running it through Convert.FromBase64String in order to get binaryEncoding). This answer was written before any of those methods were created. I'm not using commercial SSL certificates, and have a Root CA, that I use to issue server certificates. According to your description, you can refer to the following reference to create X509Certificate2 from cert and key file. I write new blog posts about once a month. Find centralized, trusted content and collaborate around the technologies you use most. ImportCspBlob wants a custom format for the data, and that's why it's complaining. This means that you can't restore original PFX from this string. How about saving the world? In this post, I'm going to share what I've learned about dealing with them so far. I was wondering if this step was quite necessary. Is it safe to publish research papers in cooperation with Russian academics? The reason for why I am using PEM format is that the certificate is stored as a secret in Kubernetes. Doing this wrong can mean you flood your disk with one-time use files, that are never removed. Making statements based on opinion; back them up with references or personal experience. What differentiates living as mere roommates from living in a marriage-like relationship? There are two tools that will help you to understand what's going on with certificate issues. We appreciate you taking the time to provide us with your feedback. to learn about generating and registering Syncfusion license key in your application to use the components without trail message. PDF documents are digitally signed using x509 certificates such as .pfx files with private keys and support for Hardware Security Module (HSM), Online Certificate Status Protocol (OCSP), Certificate Revocation List (CRL), and Windows Certificate Store to offer authenticity and integrity. Refer to. How a top-ranked engineering school reimagined CS curriculum (Ep. What am I doing wrong/is missing in the code export/import? Thank you. Seven tips for working with X.509 certificates in .NET, secure communication between the central Octopus server, and the remote agents running the Tentacle service, MSDN article with more information about these paths. Update: So, when I try: using (CngKey key = CngKey.Import(p8bytes, CngKeyBlobFormat.Pkcs8PrivateBlob)) { var rsaCng= new RSACng(key); X509Certificate2 certWithPrivateKey = certificate.CopyWithPrivateKey(rsaCng); }, the RSACng object is fine, but when CopyWithPrivateKey is called, I get an exception stating 'The requested operation is not supported'.. can you see any obvious mistakes there?