Abstract
In 2006, Lu and Cao proposed an off-line password guessing attack on an efficient key agreement protocol for secure authentication. Lu and Cao pointed out that the Kim et al.’s protocol is vulnerable to the off-line password guessing attack. Therefore, they presented a modified protocol to avoid this attack. However, in this paper, we shall show that their modified protocol cannot resist the on-line password guessing attack.
Original language | English |
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Pages (from-to) | 595-598 |
Number of pages | 4 |
Journal | Journal of Discrete Mathematical Sciences and Cryptography |
Volume | 12 |
Issue number | 5 |
DOIs | |
State | Published - 2009 |
Externally published | Yes |
Keywords
- Authenticated key agreement
- Cryptanalysis
- Password guessing attack
- Security