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Azure ARM uniqueString mimic function

I need to deploy Sql databases to Azure Sql server using ways: ARM template path and more convenient way to use C # code. There is an ARM template function called uniqueString(string)

that generates a pseudo-random hash of a given string. This is a deterministic pure function.

I need to find a way to accurately reproduce the behavior of this function from my C # code. those. I need to reproduce this function in my C # code.

Where can I find the algorithm used by ARM Api?

MSDN link for uniqueString ()

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I found PowerShell code to do it here: https://blogs.technet.microsoft.com/389thoughts/2017/12/23/get-uniquestring-generate-unique-id-for-azure-deployments/

I converted this code to C #:



public string GetUniqueString(string id, int length = 13)
{
    string result = "";
    var buffer = System.Text.Encoding.UTF8.GetBytes(id);
    var hashArray = new System.Security.Cryptography.SHA512Managed().ComputeHash(buffer);
    for(int i = 1; i <= length; i++)
    {
        var b = hashArray[i];
        var c = Convert.ToChar((b % 26) + (byte)'a');
        result = result + c;
    }

    return result;
}
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I finally found a workaround. I used a very simple ARM template that only aims to output the output of a command uniqueString

. Then I extract this output into my C # code. This solution is actually not the fastest ;-), but it works as you wish.



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