PSSharedKeyGetBlob.ps1

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$storageAccount = "MyStorageAccount"

$accesskey = "*******************"

$container = "containerName"   

     $method = "GET"
   
     $version = "2017-07-29"

     $resource = "$container/MyBlobName"

     $queue_url = "https://$storageAccount.blob.core.windows.net/$resource"

     $GMTTime = (Get-Date).ToUniversalTime().toString('R')

     $canonheaders = "x-ms-date:$GMTTime`nx-ms-version:$version`n"

     $stringToSign = "$method`n`n`n`n`n`n`n`n`n`n`n`n$canonheaders/$storageAccount/$resource"

     $hmacsha = New-Object System.Security.Cryptography.HMACSHA256

     $hmacsha.key = [Convert]::FromBase64String($accesskey)

     $signature = $hmacsha.ComputeHash([Text.Encoding]::UTF8.GetBytes($stringToSign))

     $signature = [Convert]::ToBase64String($signature)

     $headers = @{

         "x-ms-date" = $GMTTime

         "x-ms-version" = $version

         "Authorization" = "SharedKey " + $storageAccount + ":" + $signature

      } 

       

$item = Invoke-RestMethod -Method $method -Uri $queue_url -Headers $headers