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Universally Composable Three Party Password-authenticated Key Exchange Protocol |
Deng Miao-lei① Wang Yu-lei② Zhou Li-hua① |
①(College of Computer Science, Xidian University, Xi’an 710071, China)
②(Network Information Center, Nanyang Institute of Technology, Nanyang 473004, China) |
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Abstract Many existing three Party Password-Authenticated Key Exchange (3PAKE) protocols are found insecure. An ideal functionality of 3PAKE is defined in the universal composability model,and a 3PAKE protocol is constructed to realize the 3PAKE ideal functionality in the hybrid model which aided by two party password-authenticated key exchange ideal functionality. The new protocol comprises of three phases: intermediate key generation, message authentication transmission and session key generation. The protocol is UC-secure, and has simpler structure.
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Received: 03 June 2009
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Corresponding Authors:
Deng Miao-lei
E-mail: zhyhyx@163.com
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