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Key management is a core mechanism to ensure the security of applications and network services in wireless sensor networks. It includes two aspects: key distribution and key revocation. Many key management protocols have been specifically designed for wireless sensor networks. However, most of the key management protocols focus on the establishment of the required keys or the removal of the compromised...
In this paper, we consider the problem of the S- boxes and diffusion layers in SPN structures, in which the algebraic expressions of some S-boxes are always too simple and the extra memory or power consumption is required in the diffusion layers. A new SPN structure is introduced in which the algebraic complexity of the S-box is increased with a new S-box structure, the diffusion layer based on the...
An algorithm for one-way Hash function construction based on iterating a chaotic map is proposed. The total chaotic space is divided into some subspace based on the density distribution function of the chaotic map. Each subspace is associated with a unique bit in a bit sequence. The value of the chaotic map is dynamically decided by the last-time value and the corresponding message bit in different...
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