#51 crypto system

lockbox/padding/zero.lua

@@ -0,0 +1,19 @@
+local ZeroPadding = function(blockSize, byteCount)
+
+    local paddingCount = blockSize - ((byteCount -1) % blockSize) + 1;
+    local bytesLeft = paddingCount;
+
+    local stream = function()
+        if bytesLeft > 0 then
+            bytesLeft = bytesLeft - 1;
+            return 0x00;
+        else
+            return nil;
+        end
+    end
+
+    return stream;
+
+end
+
+return ZeroPadding;