From 5d9cd625fef67d7a6ec751147028c12f938dfdb7 Mon Sep 17 00:00:00 2001
From: rsiddharth <s@ricketyspace.net>
Date: Wed, 9 Dec 2020 20:02:39 -0500
Subject: lib/blocks: add Pkcs7PaddingUndo

---
 lib/blocks.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/blocks.go b/lib/blocks.go
index 452766b..0645fab 100644
--- a/lib/blocks.go
+++ b/lib/blocks.go
@@ -96,3 +96,8 @@ func Pkcs7Padding(in []byte, k int) []byte {
 	}
 	return in
 }
+
+// Removes PKCS#7 Padding from input `in`
+func Pkcs7PaddingUndo(in []byte) []byte {
+	return in[0:(len(in) - int(in[len(in)-1]))]
+}
-- 
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