Use iteration count 100k when using Rfc2898DeriveBytes class

scripts/utils/Generate-ApiKey.ps1

@@ -19,7 +19,7 @@ function Get-RandomBytes($bytesLength) {
 }
 
 function Calculate-Hash($key, $salt, $hashSize) {
-    $iterations = 1000
+    $iterations = 100000
 
     $deriver = New-Object "System.Security.Cryptography.Rfc2898DeriveBytes" -ArgumentList ([byte[]]$key, [byte[]]$salt, $iterations)
 

src/Microsoft.IIS.Administration/Security/ApiKeys/ApiKeyProvider.cs

@@ -211,7 +211,7 @@ namespace Microsoft.IIS.Administration.Security {
         private byte[] CalcHash(byte[] key, byte[] salt) {
             //
             //
-            using (var rfc2898DeriveBytes = new Rfc2898DeriveBytes(key, salt, 1000)) {
+            using (var rfc2898DeriveBytes = new Rfc2898DeriveBytes(key, salt, 100000)) {
                 return rfc2898DeriveBytes.GetBytes(_options.HashSize);
             }
         }