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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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3
Task/Vigen-re-cipher/Smalltalk/vigen-re-cipher-1.st Normal file
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prep := [:s | s select:[:ch | ch isLetter] thenCollect:[:ch | ch asUppercase]].
encrypt := [:s :cypher | (prep value:s) keysAndValuesCollect:[:i :ch | ch rot:((cypher at:((i-1)\\key size+1))-$A) ]].
decrypt := [:s :cypher | (prep value:s) keysAndValuesCollect:[:i :ch | ch rot:26-((cypher at:((i-1)\\key size+1))-$A) ]].

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Task/Vigen-re-cipher/Smalltalk/vigen-re-cipher-2.st Normal file
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plain := 'Beware the Jabberwock, my son! The jaws that bite, the claws that catch!'.
cypher := 'VIGENERECIPHER'.
crypted := encrypt value:plain value:cypher.
plain2 := decrypt value:crypted value:cypher.
crypted -> 'WMCEEIKLGRPIFVMEUGXQPWQVIOIAVEYXUEKFKBTALVXTGAFXYEVKPAGY'
plain2 -> 'BEWARETHEJABBERWOCKMYSONTHEJAWSTHATBITETHECLAWSTHATCATCH'