在电子现金支付中,若用户在n个银行都有账户,且他在n-1个银行中的账户余额都不够一次支付时,则需要在这n个银行都取款。然而对这n个电子现金应用盲聚合签名方法,使之成为一个聚合电子现金,再支付给商家,如此可大大节省时间和空间开销,效率更高。
In an e-cash system, one has to withdraw deposit from n banks when his any n - 1 accounts (in different banks) could not disburse his transaction. Blind aggregate signature is applied, and these n e-cashes are turned into an aggregated one and paid to a merchant. Taking advantage of blind aggregate signature,this scheme saves plenty of time and storage with more efficiency.