Small and medium business | Business Central, N...

Using "Cryptography Management"

(0) Share

Report

Posted on by Gijs1985

Hi community,

I am building an extension in Business Central and I need to apply a HTTP signature to my API calls.

At this moment I am using the function SignData in codeunit 1266 "Cryptography Management", because I need to sign my data with algorithm sha256 and by using my private key file.

When I use this function however, I receive the following error message.

Error:

A call to System.Security.Cryptography.RSACryptoServiceProvider.FromXmlString failed with this message: Invalid syntax on line 1.

Code:

TempBlob.CreateOutStream(SignatureOutStream);

CryptographyMgt.SignData(SigningString, PrivateKeyFile, HashAlgorithmType::SHA256, SignatureOutStream);

Does anyone have an idea what could be the problem?

Thanks a lot!

Kind regards,

Gijs

All responses (11)

Answers (0)

Mohana Yadav 60,209 Super User 2025 Season 1 on at

Like (0)

Report

RE: Using "Cryptography Management"

Did you guys find a solution for the same?
Joriek 15 on at

Like (0)

Report

RE: Using "Cryptography Management"

It seems like the cryptography mgt accepted the key but the webservice that I'm contacting is still returning errors over my signature.

So many unknown variables on this, but I won't stop looking.

Thank you very much for your response!

Kind regards,

Joriek
Gijs1985 5 on at

Like (0)

Report

RE: Using "Cryptography Management"

Not really sure that this was exactly the project that I used, but your approach looks correct to me.

In any case you should be able to import the generated XML file in BC and use it in cryptography mgt.
Joriek 15 on at

Like (0)

Report

RE: Using "Cryptography Management"

Thank you for your respons, I guess the correct method is to add my pem file to the exe directory, use the cmd to execute the .exe file and use the generated XML in my BC. Or did you use another method?
Gijs1985 5 on at

Like (0)

Report

RE: Using "Cryptography Management"

Hi Joriek,

There is no function available in AL for this at the moment, so I had to look for a third party tool to transform PEM to XML.

After doing some research I came across a .net project that was able to do this.

If I remember correct, it was this one: github.com/.../pem2xml

Kind regards,
Joriek 15 on at

Like (0)

Report

RE: Using "Cryptography Management"

Hey Gijs, how did you convert this PEM file to an XML? Can you do this only using AL code or did you need any 3th party tools?
Gijs1985 5 on at

Like (0)

Report

RE: Using "Cryptography Management"

You can only use this function if the private key file is a XML file.

In this case the private key file was a PEM file, so I had to transform the PEM file to a XML file to be able to use this function.

Kind regards,
imkarthikeyan 67 on at

Like (0)

Report

RE: Using "Cryptography Management"

Did u find any solution??
Suggested answer

Marco Mels on at

Like (0)

Report

RE: Using "Cryptography Management"

Hi,

If there was an outcome, then maybe you can share it with the community?

Thanks.
Gijs1985 5 on at

Like (0)

Report

RE: Using "Cryptography Management"

Hi Marco,

Unfortunately I already came across this blog posting and this didn't help me.

I contacted Microsoft for this issue and I will keep this post up-to-date.

Kind regards,

Community site session details

Using "Cryptography Management"

Helpful resources

News and Announcements

Quick Links

🌸 Community Spring Festival 2025 Challenge 🌸

Jonas ”Jones” Melgaard – Community Spotlight

Kudos to the March Top 10 Community Stars!

Leaderboard

Featured topics

Product updates

Community site session details

Using "Cryptography Management"

Helpful resources

News and Announcements

Quick Links

🌸 Community Spring Festival 2025 Challenge 🌸

Jonas ”Jones” Melgaard – Community Spotlight

Kudos to the March Top 10 Community Stars!

Subscribe to this forum!

Select categories

Leaderboard

Featured topics

Product updates