diff --git a/lib/abi/type_decoder.ex b/lib/abi/type_decoder.ex
index 2d9abf1..9bf8c14 100644
--- a/lib/abi/type_decoder.ex
+++ b/lib/abi/type_decoder.ex
@@ -168,6 +168,11 @@ defmodule ABI.TypeDecoder do
     decode_uint(data, size_in_bits)
   end
 
+  @spec decode_type(ABI.FunctionSelector.type(), binary()) :: {any(), binary()}
+  defp decode_type({:int, size_in_bits}, data) do
+    decode_int(data, size_in_bits)
+  end
+
   defp decode_type(:address, data), do: decode_bytes(data, 20, :left)
 
   defp decode_type(:bool, data) do
@@ -204,6 +209,11 @@ defmodule ABI.TypeDecoder do
     decode_type({:array, type, element_count}, rest)
   end
 
+  defp decode_type({:array, _type, element_count}, data)
+       when element_count * 32 > byte_size(data) do
+    raise("The input binary data is not long enough to use to decode the array.")
+  end
+
   defp decode_type({:array, _type, 0}, data), do: {[], data}
 
   defp decode_type({:array, type, element_count}, data) do
@@ -260,6 +270,14 @@ defmodule ABI.TypeDecoder do
     {value, rest}
   end
 
+  @spec decode_int(binary(), integer()) :: {integer(), binary()}
+  defp decode_int(data, size_in_bits) do
+    total_bit_size = size_in_bits + ExthCrypto.Math.mod(256 - size_in_bits, 256)
+    <<value::integer-signed-big-size(total_bit_size), rest::binary>> = data
+
+    {value, rest}
+  end
+
   @spec decode_bytes(binary(), integer(), atom()) :: {binary(), binary()}
   def decode_bytes(data, size_in_bytes, padding_direction) do
     # TODO: Create `unright_pad` repo, err, add to `ExthCrypto.Math`