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diff --git a/3544/DEPENDENCIES/Chapter_6.sci b/3544/DEPENDENCIES/Chapter_6.sci
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+++ b/3544/DEPENDENCIES/Chapter_6.sci
@@ -0,0 +1,27 @@
+
+///////////////////////////////
+// base-64 encoding //
+///////////////////////////////
+
+function [enc]=encoding_table()
+ a = ascii('A')
+ enc = []
+
+
+ for i=0:25
+ enc(i+1) = i+a
+ end
+
+
+ for i=26:51
+ enc(i+1) = i+a+6
+ end
+
+ for i=52:61
+ enc(i+1) = i-52+ascii('0')
+ end
+
+ enc(63) = ascii('+')
+ enc(64) = ascii('/')
+
+endfunction