Playfair cipher: Difference between revisions
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Line 246:
ref=:pairs
i.0 0
)
pairs=: 3 :0
2{."1 -.&' '"1 ~."1 (_2]\ norm y),"1 'XQV'
)
encrypt=:3 :0
,alt{~ref i.
)
decrypt=:3 :0
,ref{~alt i.
)</lang>
Example use:
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