00563nam a22001817a 4500 4135 4135 20250811111514.0 170315b xxu||||| |||| 00| 0 eng d 9781857028898 KyUL EN Z 103 .S56 1999 Z 103 .S56 1999 The code book : the evolution of secrecy from Mary, Queen of Scots, to quantum cryptography Singh, Simon London : Fourth Estate, 1999. 402 p.: Computer Science School of Pure and Applied Sciences lcc LLB 0 0 lcc 0 0 NFIC KyUCL KyUCL GEN 2017-03-15 Purchase 1157.00 Z 103 .S56 1999 KYU/2017/7327 2026-03-31 2017-03-15 LLB