11 lines
516 B
Text
11 lines
516 B
Text
SeedRandom[1234];
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a=Characters@"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789 ";
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map=Thread[a->RandomSample[a]];
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ClearAll[SubstitutionCipherEncode,SubstitutionCipherDecode]
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SubstitutionCipherEncode[input_String,map_]:=StringReplace[input,map]
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SubstitutionCipherDecode[input_String,map_]:=StringReplace[input,Reverse/@map]
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str="The quick brown fox jumps over the lazy dog,who barks VERY loudly!";
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encoded=SubstitutionCipherEncode[str,map]
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decoded=SubstitutionCipherDecode[encoded,map]
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str===decoded
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