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EntityQ829915· pop 26· linked from 91 articles

Also known as Playfair system

early block substitution cipher

Wikidata facts

Image
Playfair Cipher 01 HI to BM (cropped).png
Show 2 more facts
Commons category
Playfair
discoverer or inventor
Charles Wheatstone
Sources (1)

via Wikidata · CC0