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In 1999, Yang and Shieh proposed two authentication schemes with smart cards, one is timestamp-based password authentication scheme and other is nonce-based password authentication scheme. In 2002, Chan and Cheng pointed out that Yang and Shieh’s timestamp-based password authentication scheme is insecure to vulnerable forgery attack. Further, in 2003, Sun and Yeh showed that Yang and Shieh’s both...
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.