000 003850000a22001450004500
008 140223b1999 xxu||||| |||| 00| 0 eng d
020 _a1568810822
041 _aEng
080 _aB13 N9
082 _aB13 N9
100 _aCOUTINHO S C
245 _aMathematics of ciphers: Number theory and RSA cryptography
260 _aNatick (Mass)
_bA K Peters
_c1999
650 _aMathematics
999 _c96558
_d96558