| 000 | 00416nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 190529s9999 xx 000 0 und d | ||
| 020 | _a1857028791 | ||
| 082 |
_a5.82 _bSIM |
||
| 100 | _aSimon Singh | ||
| 245 | 4 | _aThe code book: the science of secrecy from ancient Egypt to quantum cryptography | |
| 260 |
_aLondon _bFourth EstateLtd. _c1999 |
||
| 300 | _axiii, 402 p. | ||
| 650 | _aNetwork security | ||
| 942 | _cS | ||
| 999 |
_c117052 _d117051 |
||