TY  - BOOK
AU  - Mollin, Richard A.
TI  - Codes: the guide to secrecy from ancient to modern times
SN  - 1584884703
PY  - 2005///
CY  - Boca Raton
PB  - Chapman and Hall/CRC
KW  - Data encryption- history
KW  - Cryptography- history
KW  - Compuiter- access control
KW  - Computer security
KW  - Computer viruses
KW  - Computer crimes
KW  - Computers
ER  -