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Mobile payment protocols have become more and more popular with the rapid development of network and mobile phones technologies. It gradually changes the consuming behaviors of consumers. However, must of the existing mobile payment protocols can only support on-line transactions. Some provides off-line transactions but have the limitation of micro-payments only. A micro-payment allows only a very...
Our previous work suggested an interactive learning process, which use the students' study records in order to improve the students' learning motivation and the self-learning time. To improve the progress speed of a lecture and the efficiency of the Self-learning, we proposed an Active Learning System (ALS) using smartphone. In addition, we suggested the group discussion system of ALS. However, the...
An asymmetric secret sharing scheme (A-SSS) can set the number of data servers that hold shares to less than k because it can generate up to k – 1 shares from one key of the secret's owner. Therefore, the secret is not revealed even if all the data servers are attacked. However, if the owner's key is stolen and attacked, the secret may be leaked. Therefore, in this paper, we propose two proactive...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.