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

how-can-i-sign-a-file-using-rsa-and-sha256-with-AL

(0) Share

Report

Posted on by Techworld

106

Hello Everyone,

I am working with a task where we need to sign data by using private key received from Azure Vault.

Here we are able to do it by following this blog:

How To Access Azure Key Vault Secrets Through Rest API Using Postman (c-sharpcorner.com)

after having this key in system we are trying to use codunit cryptography or RSA

CryptoMgmt: Codeunit "Cryptography Management";

rsa: Codeunit RSACryptoServiceProvider;

SecretKey := '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';

Message(SecretKey);

// SecretKey := Base64.ToBase64(SecretKey);

// SecretKey := '<RSAKeyValue><Modulus>' + SecretKey + '</RSAKeyValue>';//'</Modulus><Exponent>AQAB</Exponent></RSAKeyValue>';

SIGNATURERECORD.DeleteAll();

SIGNATURERECORD.Init();

SIGNATURERECORD."Key Index" := 1;

SIGNATURERECORD.FromXmlString(SecretKey);

// SIGNATURERECORD.ToXmlString(true);

SIGNATURERECORD.Insert();

TempBLOB.CreateOutStream(OUTSTREAM1, TextEncoding::UTF8);

// OUTSTREAM1.WriteText('2019-01-11;2019-01-11T11:27:08;FAC 001/9;1200.00');

OUTSTREAM1.WriteText('FAC11');

TempBLOB.CreateInStream(stream);

// rsa.ToXmlString(true);

rsa.SignData(SecretKey, stream, Algo::SHA256, outstream);

//CryptoMgmt.SignData('FAC11', SIGNATURERECORD, Algo::SHA1, outstream);

outstream.WriteText(hASHVALUE);

SIGNATURERECORD.Delete();

Have written this code also to check but runs in issue:

I chekced there is no space in key and it is hardcoded without any space. But facing this issue

I have the same question (0)

All responses (5)

Answers (0)

Suggested answer

Marco Mels on at

Like (1)

Report

RE: how-can-i-sign-a-file-using-rsa-and-sha256-with-AL

Hello,

We currently do not have dedicated Dev support via the Dynamics 365 Business Central forums, but I wanted to provide you some additional resources to assist. If you need assistance with debugging or coding I would recommend discussing this on one of our communities.

www.yammer.com/dynamicsnavdev

dynamicsuser.net/.../developers

I will open this up to the community in case they have something to add.

Thanks

Was this reply helpful? Yes No
Techworld 106 on at

Like (0)

Report

RE: how-can-i-sign-a-file-using-rsa-and-sha256-with-AL

Much appreciated. Tried to open in Github also but closed by admin there as they do not take questions in Github

Was this reply helpful? Yes No
VM-14050617-0 18 on at

Like (0)

Report

how-can-i-sign-a-file-using-rsa-and-sha256-with-AL

Hi,

I am stuck in same kind of scenario. Did you get any solution of this problem?

Below is the link of the problem I posted on community forum.

Unable to Sign Data Using RS256 Encryption Algorithm with our own Key. (dynamics.com)

Regards

Vishal Mittal

Was this reply helpful? Yes No
MadMax33 18 on at

Like (0)

Report

how-can-i-sign-a-file-using-rsa-and-sha256-with-AL

Hi Any solution for this issue?

I also get this error message

Was this reply helpful? Yes No
Suggested answer

Khushbu Rajvi. 19,973 Super User 2025 Season 2 on at

Like (1)

Report

how-can-i-sign-a-file-using-rsa-and-sha256-with-AL

Go through it, Hope you got some hint: https://www.yammer.com/dynamicsnavdev/#/Threads/show?threadId=2350584062394368&search_origin=global&scoring=linear1Y-prankie-group-private-higher&match=any-exact&search_sort=relevance&page=1&search=rsa

https://www.yammer.com/dynamicsnavdev/#/Threads/show?threadId=2354820282310656&search_origin=global&scoring=linear1Y-prankie-group-private-higher&match=any-exact&search_sort=relevance&page=1&search=rsa

https://www.yammer.com/dynamicsnavdev/#/Threads/show?threadId=2769354347372544&search_origin=global&scoring=linear1Y-prankie-group-private-higher&match=any-exact&search_sort=relevance&page=1&search=rsa

Was this reply helpful? Yes No