000 00308nam a22001217a 4500
999 _c65556
_d65556
020 _a8173714428
082 _a512.7
_bCOU/M
100 _aCoutinho, S.C.
245 _aThe Mathematics of Ciphers : Number Theory and RSA Cryptography
260 _bUniversity Press
_c1999
650 _aMathematics
942 _cBK