How to create a Certificate Signing Request on Xamarin

Question

How can we generate a certificate signing request (CSR) on Xamarin platforms.

CertificateRequest can be used for this in desktop .net however Xamarin/mono platforms do not support it, It throws a PlatformNotSupportedException.

Answer 1

The c# version of SandCastle supports creating Certificate Signing Requests (CSR)

 byte[] CreateSigningRequest(string commonName, RSA rsa)
 {
     var name = new X509Name($"C=NZ, O=MyOrg, L=MyLocation, OU=MyOrgUnit, CN={commonName}");
     var keys = DotNetUtilities.GetKeyPair(rsa);
     Pkcs10CertificationRequest csr = new Pkcs10CertificationRequest("SHA256WITHRSA", name, keys.Public, null, keys.Private);
     return csr.GetEncoded();
}