Cryptanalysis of a user authentication scheme using hash functions
In: ACM SIGOPS Operating Systems Review, Jg. 38 (2004), Heft 1, S. 24-28
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Zugriff:
Recently, Lee et al. proposed an improved scheme, called LLH scheme, to solve a security problem of guessing attack in the Peyravian-Zunic password scheme. The scheme comprises a password authentication protocol and a password change protocol. However, we discuss that the LLH scheme has several security problems: the scheme is still vulnerable to the guessing attack; the scheme cannot also prevent the stolen-verifier attack; the password change protocol in scheme is vulnerable to a denial of service attack.
Titel: |
Cryptanalysis of a user authentication scheme using hash functions
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Autor/in / Beteiligte Person: | Lee, Sung-Woon ; Kim, Hyun-Sung ; Yoo, Kee-Young |
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Zeitschrift: | ACM SIGOPS Operating Systems Review, Jg. 38 (2004), Heft 1, S. 24-28 |
Veröffentlichung: | Association for Computing Machinery (ACM), 2004 |
Medientyp: | academicJournal |
ISSN: | 0163-5980 |
DOI: | 10.1145/974104.974106 |
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