科研之友
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摘要
Seventeen-year-old Alan Turing received a copy of the tenth edition of W. W. Rouse Ball's Mathematical Recreations and Essays as part of a school award. Ball's book contained a chapter titled oCryptographs and Ciphers.o This might have been Turing's first cryptology textbook. In this paper we will examine what Turing could have found in Ball's chapter, and we will examine changes made to later editions by Ball and by Abraham Sinkov.
- 出版日期2010
