A weakness in the Bresson-Chevassut-Essiari-Pointcheval's Group Key Agreement scheme for low-power mobile devices |
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| Authors: | Junghyun Nam Seungjoo Kim Dongho Won |
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| Affiliation: | Sch. of Inf. & Commun. Eng., Sungkyunkwan Univ., Suwon-si, South Korea; |
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| Abstract: | In this letter, we show that Bresson-Chevassut-Essiari-Pointcheval's Group Key Agreement scheme does not meet the main security properties: implicit key authentication, forward secrecy and known key security. Also, we propose an improved version, which fixes the security flaws, found in the scheme. |
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