read "the code book" by simon singh for the details of the enigma machine and who contributed to its decipherment. basically, a german spy gave the poles the instruction books on the enigma and they eventually cracked it. later, the germans increased the number of scramblers and wires on the enigma machine and that proved to be too much. before poland was invaded, they gave the documentation to the allies and bletchley park was born. a bloke named alan turing built machines called bombes to decipher the new and improved enigma cipher and unknowingly paved way for today's computer. excellent book.
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read "the code book" by simon singh for the details of the enigma machine and who contributed to its decipherment. basically, a german spy gave the poles the instruction books on the enigma and they eventually cracked it. later, the germans increased the number of scramblers and wires on the enigma machine and that proved to be too much. before poland was invaded, they gave the documentation to the allies and bletchley park was born. a bloke named alan turing built machines called bombes to decipher the new and improved enigma cipher and unknowingly paved way for today's computer. excellent book.