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microsoft / cal-open-library

C/AL Open Library is a repository for .NET Interop wrappers that will be included into Dynamics 365 for Financials and usable from Extensions V2
MIT License
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How to get PrivateKey? #132

Open fmoric opened 4 years ago

fmoric commented 4 years ago

How to get private key from certificate? For example use to SignXmlText function?

I run through all codeunits and i see no way. I wanted to make extension that has to sign an xml and send it.

So i would appreciate some help.

SjoerddeClippelaar commented 4 years ago

Hi Filip,

In Certificates you can upload a certificate now (with password if needed). You can use codeunit 1259 Certificate Management to get the certificate. Use the function VerifyCert and than use the global DotNet_X509Certificate2.

When you have the certificate you can do the following

Name DataType Subtype Length
DotNetRSA DotNet System.Security.Cryptography.RSA.'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'  
DotNetRSACertificateExtensions DotNet System.Security.Cryptography.X509Certificates.RSACertificateExtensions.'System.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'  

DotNetRSA := DotNetRSACertificateExtensions.GetRSAPrivateKey(DotNetX509Certificate2); CertificateXml := DotNetRSA.ToXmlString(TRUE);

CertificateXml contains the privatekey (see https://docs.microsoft.com/en-us/dotnet/api/system.security.cryptography.rsa.toxmlstring?view=netframework-4.8)

fmoric commented 4 years ago

Ok, i get that part, but that's using DotNet DataType and DotNet is only available on-premise. I was wondering if there is any way of using only External functions, and building extension?

I would need it for local functionality, i need to send invoices to TA.