Security Analysis of a Convertible Multiauthenticated Encryption Scheme

Abstract:

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Multi-authenticated encryption scheme is message transmission scheme, which sends message in a secure and authentic way, and allows a group of signers to cooperatively produce a valid authenticated ciphertext so that only the specific recipient can recover the message and verify the signature. Recently, Wu et al. proposed a convertible multi-authenticated encryption scheme and claimed that the scheme was secure. In this paper, we show that Wu et. al’s scheme is not secure against rogue-key attacks. To overcome such attack, we give an improved multi-authenticated encryption scheme by including two hash functions. And our improved scheme is the same efficiency as Wu et.al.’s scheme.

Info:

Periodical:

Edited by:

Dehuai Zeng

Pages:

111-115

DOI:

10.4028/www.scientific.net/AMR.159.111

Citation:

J. H. Zhang et al., "Security Analysis of a Convertible Multiauthenticated Encryption Scheme", Advanced Materials Research, Vol. 159, pp. 111-115, 2011

Online since:

December 2010

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Price:

$35.00

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