I first became aware of the Dieppe Raid when back in the mid to late 1970's, as a child, I pulled a copy of, Dieppe, The Shame and the Glory, off the bookshelf and started looking at it and then started asking other family members about it. At this time there wasn't any Enigma code connection made with the raid and indeed it wasn't so widely known that Britainicon had broken the Enigma code during WW2.

Dieppe: The shames and the glory: Amazon.co.uk: Terence Robertson: Books