slice correctly!

Author: DeagleGross

src/DataProtection/DataProtection/src/KeyManagement/KeyManagementOptions.cs

@@ -111,7 +111,7 @@ internal static TimeSpan MaxServerClockSkew
     /// <remarks>
     /// Settable for testing.
     /// </remarks>
-    internal TimeSpan DefaultKeyResolverRetryDelay { get; set; } = TimeSpan.FromMilliseconds(200);
+    internal TimeSpan DefaultKeyResolverRetryDelay { get; set; } = TimeSpan.FromMilliseconds(200.0);
 
     /// <summary>
     /// Controls the lifetime (number of days before expiration)

src/DataProtection/DataProtection/src/SP800_108/ManagedSP800_108_CTR_HMACSHA512.cs

@@ -94,7 +94,7 @@ public static void DeriveKeys(byte[] kdk, ReadOnlySpan<byte> label, ReadOnlySpan
                 CryptoUtil.Assert(prfOutputSizeInBytes == prfOutput.Length, "prfOutputSizeInBytes == prfOutput.Length");
                 var numBytesToCopyThisIteration = Math.Min(prfOutputSizeInBytes, outputCount);
 
-                prfOutput.CopyTo(output.AsSpan().Slice(outputOffset, numBytesToCopyThisIteration));
+                prfOutput.AsSpan().Slice(0, numBytesToCopyThisIteration).CopyTo(output.Array!.AsSpan().Slice(start: outputOffset));
                 Array.Clear(prfOutput, 0, prfOutput.Length); // contains key material, so delete it
 
                 // adjust offsets