Douban members tagged these with "encryption":
| Dan Brown / 2003-03-18 / Hardcover / USD 24.95 / Doubleday |
| Dan Brown / 2004-01-05 / Mass Market Paperback / USD 7.99 / St. Martin's Paperbacks / A Thriller |
| Simon Singh / 2000-08-29 / Paperback / USD 15.00 / Anchor / The Science of Secrecy from Ancient Egypt to Quantum Cryptography |
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Related tags:
 Common book tags
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