TY  - GEN
AU  - Piper, Fred C.
AU  -  Sean.Murphy
TI  - Cryptography: a very short introduction
SN  -  0192803158
U1  - 652.8 
PY  - 2002///
CY  - Oxford ; New York
PB  - : Oxford University Press
KW  - Cryptography
N1  - ncludes bibliographical references and index
ER  -