By Simon Singh
It’s often called the technological know-how of secrecy. Cryptography: the encoding and interpreting of non-public info. And it's history’s such a lot interesting tale of intrigue and crafty. From Julius Caesar and his Caesar Cipher to the code utilized by Mary Queen of Scots and her conspiracy to using the Engima laptop in the course of the moment global conflict, Simon Singh follows the evolution of mystery writing. available, compelling, and well timed, this foreign bestseller, now tailored for youngsters, is certain to make readers see the past—and the future—in a complete new approach. From the Hardcover variation.
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Extra resources for The code book: How to make it, break it, hack it, crack it, for young people
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The promise of protection was reassuring, particularly as Henry VIII had switched from diplomacy to intimidation in order to persuade the Scots that his own son was a more 37 THE CODE BOOK worthy groom for Mary Queen of Scots. His forces committed acts of piracy, destroyed crops, burned villages and attacked towns and cities along the border. The “rough wooing,” as it is known, continued even after Henry’s death in 1547. On the orders of his son, King Edward VI (the would-be suitor), the attacks culminated in the Battle of Pinkie Cleugh, in which the Scottish army was crushed.
The only European institutions to encourage the study of secret writing were the monasteries, where monks would study the Bible in search of hidden meanings, a fascination that has persisted through to modern times (see Appendix C). By the fifteenth century, however, European cryptography was a growing industry. The revival in the arts, sciences and scholarship during the Renaissance nurtured the capacity for cryptography, while an explosion in political intrigue offered 31 THE CODE BOOK ample motivation for secret communication.
50 2 The Anonymous Codebreaker The Vigene`re cipher, why cryptographers seldom get credit for their breakthroughs and a tale of buried treasure For centuries, the simple monoalphabetic substitution cipher had been sufficient to ensure secrecy. The subsequent development of frequency analysis, first in the Arab world and then in Europe, destroyed its security. The tragic execution of Mary Queen of Scots was a dramatic illustration of the weaknesses of monoalphabetic substitution, and in the battle between cryptographers and cryptanalysts it was clear that the cryptanalysts had gained the upper hand.