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Codes and Ciphers: Clever Devices for Coding and Decoding to Cut Out and Make Gerald Jenkins
Codes and Ciphers: Clever Devices for Coding and Decoding to Cut Out and Make
Gerald Jenkins
Make this collection of seven ingenious paper gadgets which introduce and explain many of the concepts used in cipher machines. Decode the secret messages and then start to understand how cryptographers try to protect information from prying eyes.
32 pages
| 介质类型 | 图书 Paperback Book (平装胶订图书) |
| 已发行 | 2002年6月20日 |
| ISBN13 | 9781899618538 |
| 出版商 | Tarquin Publications |
| 页数 | 32 |
| 商品尺寸 | 210 × 297 × 7 mm · 174 g |
