00357nas a2200145   4500000000100000000000100001008004100002260001400043100002100057700001900078700001600097245008100113300001000194490000700204       2014                            d  cJune 20141 aVíctor Meseguer1 aFrancesc Sebé1 aMagda Valls00aConstructing credential-based E-voting systems from offline E-coin protocols  a39-440 v42