Data commit

Task/Substitution-cipher/Zkl/substitution-cipher-1.zkl

@@ -0,0 +1,7 @@
+class SubstitutionCipher{
+   // 92 characters: " !"#$%&" ... "xyz{|}", doesn't include "~"
+   const KEY="]kYV}(!7P$n5_0i R:?jOWtF/=-pe'AD&@r6%ZXs\"v*N"
+             "[#wSl9zq2^+g;LoB`aGh{3.HIu4fbK)mU8|dMET><,Qc\\C1yxJ";
+   fcn encode(s){ s.apply(fcn(c){ try{ KEY[c.toAsc()-32] }catch{ c } }) }
+   fcn decode(s){ s.apply(fcn(c){ try{ (KEY.index(c)+32).toChar() }catch{ c } }) }
+}

Task/Substitution-cipher/Zkl/substitution-cipher-2.zkl

@@ -0,0 +1,11 @@
+text:="Here we have to do is there will be a input/source "
+      "file in which we are going to Encrypt the file by replacing every "
+      "upper/lower case alphabets of the source file with another "
+      "predetermined upper/lower case alphabets or symbols and save "
+      "it into another output/encrypted file and then again convert "
+      "that output/encrypted file into original/decrypted file. This "
+      "type of Encryption/Decryption scheme is often called a "
+      "Substitution Cipher.";
+encoded:=SubstitutionCipher.encode(text);
+println(  "Encoded: ",encoded);
+println("\nDecoded: ",SubstitutionCipher.decode(encoded));