An encryption algorithm based on combined chaos in body area networks

Wang, Wei; Si, Miaomiao; Pang, Yu; Ran, Peng; Wang, Huiqian; Jiang, Xiaoming; Liu, Yu; Wu, Jun; Wu, Wei; Chilamkurti, Naveen; Jeon, Gwanggil

doi:10.1016/j.compeleceng.2017.07.026

Cited by 49 publications

(37 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where µ ∈ [3.5699456, 4], a ∈ [0.4, 0.5] are their control parameters, and x n , y n ∈ [0, 1] (n > 0) represents the respective state of maps as per the specifications in [14]. The initial condition y 0 (=x k ) is the x state of map (1) after k iterations.…”

Section: Wang Et Al Image Encryption Algorithmmentioning

confidence: 99%

“…Exit The decryption algorithm has similar steps but in reverse fashion. For further details the readers are refer to [14].…”

Section: W7mentioning

confidence: 99%

“…Due to these features, chaotic systems are regarded as cogently fitted for the development of secure and robust image encryption methods. Therefore, the chaotic systems have been utilized to design the authentication, protection and encryption of medical data and identity of patients in healthcare systems [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

“…In body area network systems, a large quantity of a patient's data is stored and wirelessly transmitted in the form of images. To protect the patient's information in a BAN system, Wang et al proposed an image encryption algorithm recently in [14]. The algorithm utilized two different 1D chaotic maps to generate sub-chaotic matrices which are combined as a single matrix for the encryption of the image data matrix and an encrypted image matrix results.…”

Section: Introductionmentioning

confidence: 99%

“…The security of the recent image encryption algorithm in [14] is scrutinized and some defects are unveiled. • A total break of the algorithm is done under proposed simple cryptanalysis that recovers the plain-image and nullifies the claim of excellent attack resistance ability of the algorithm made in [14]. • An improved scheme is proposed based on SHA-512 and a 4D hyperchaotic system to settle the issues of plain-image insensitivity and weak keys with strong encryption quality.…”

mentioning

confidence: 99%

See 4 more Smart Citations

Cryptanalysis of an Image Encryption Algorithm Based on Combined Chaos for a BAN System, and Improved Scheme Using SHA-512 and Hyperchaos

et al. 2018

View full text Add to dashboard Cite

The issues of identity authentication and privacy protection of individuals in body area network (BAN) systems have raised much concern in past few years. To address the challenges of privacy protection in wireless BAN, an image encryption algorithm has been proposed recently by Wang et al. The encryption algorithm utilized two 1D chaotic maps to generate sub-chaotic matrices which are combined to perform encryption. The algorithm has good statistical encryption performance. However, a cautious inquiry finds that it has some underlying security defects. This paper evaluates the security of the Wang et al. encryption algorithm to show that it is totally breakable under proposed cryptanalysis and hence infeasible for privacy protection in BAN. It has been shown that the plain-image data can be recovered without any prior knowledge of secret key and plain-text. Furthermore, this paper also suggests an improved encryption scheme using secure hash algorithm SHA-512 for one-time keys and a 4D hyperchaotic system to subdue the security insufficiencies of the algorithm under study. The simulation results and analysis demonstrate that the improved image encryption scheme has excellent encryption quality, plain-image sensitivity, and resistance to possible cryptanalytic attacks.

show abstract

Section: Wang Et Al Image Encryption Algorithmmentioning

confidence: 99%

“…Exit The decryption algorithm has similar steps but in reverse fashion. For further details the readers are refer to [14].…”

Section: W7mentioning

confidence: 99%