Dynamic QAM Mapping for Physical-Layer Security Using Digital Chaos

Sultan, Amber; Yang, Xuelin; Hajomer, Adnan A. E.; Hussain, Syed Baqar

doi:10.1109/access.2018.2866797

Cited by 26 publications

(10 citation statements)

References 24 publications

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“…In recent years, considerable efforts have been devoted to physical-layer security enhancement using digital signal processing (DSP) approaches in electric domain for OFDM-PON system [17]- [29]. In particular, chaotic encryption has been widely investigated owing to its desirable properties such as ergodicity, sensitivity to the initial values and low implementation cost [17]- [24]. For example, the OFDM symbols are divided into sub-matrices and encrypted by different algorithms based on chaotic systems [21]- [23].…”

Section: Introductionmentioning

confidence: 99%

Channel-Based Dynamic Key Generation for Physical Layer Security in OFDM-PON Systems

Yan

et al. 2021

IEEE Photonics J.

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Key generation and distribution is a fundamental problem of communication security. To avoid the potential risk due to static key, a physical-layer dynamic key generation and encryption scheme is proposed for orthogonal frequency division multiplexing passive optical network (OFDM-PON) systems. By exploiting the inherent channel randomness, the shared secret key between the OLT and ONU is generated and renewed periodically, thereby effectively improving the security against malicious attacks. The transmission experiment of 3.5 Gb/s 16-quardrature-amplitued-modulatin encrypted OFDM data is successfully demonstrated over a 25 km standard single-mode fiber. The key space of the proposed encryption scheme reaches 10 66 , which provides privacy between users and protection against eavesdropping.

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Section: Introductionmentioning

confidence: 99%

Channel-Based Dynamic Key Generation for Physical Layer Security in OFDM-PON Systems

Yan

et al. 2021

IEEE Photonics J.

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“…The encryption in a layered communication model such as TCP/IP can be performed at different levels of the communication, such as in layers 2 or 3 with MACsec or IPsec standards, respectively. Although encryption in physical layer (layer 1) is less usual than in other layers some proposals have been made, for example related with photonic [26]- [29] or radio [30], [31] technologies or with the physical layer protocols [20], [21], [32].…”

Section: Application Case: Ethernet 1000base-xmentioning

confidence: 99%

A New Method for Format Preserving Encryption in High-Data Rate Communications

et al. 2020

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In some encryption systems it is necessary to preserve the format and length of the encrypted data. This kind of encryption is called FPE (Format Preserving Encryption). Currently, only two AES (Advanced Encryption Standard) modes of operation recommended by the NIST (National Institute of Standards and Technology) are able to implement FPE algorithms, FF1 and FF3. These modes work in an electronic codebook fashion and can be configured to encrypt databases with an arbitrary format and length. However, there are no stream cipher proposals able to implement FPE encryption for high data rate information flows. The main novelty of this work is a new block cipher operation mode proposal to implement an FPE algorithm in a stream cipher fashion. It has been called CTR-MOD and it is based on a standard block cipher working in CTR (Counter) mode and a modulo operation. The confidentiality of this mode is analyzed in terms of its IND-CPA (Indistinguishability under Chosen Plaintext Attack) advantage of any adversary attacking it. Moreover, the encryption scheme has been implemented on an FPGA (Field Programmable Gate Array) and has been integrated in a Gigabit Ethernet interface to test an encrypted optical link with a real high data rate traffic flow. INDEX TERMS FPE (format preserving encryption), stream cipher, FPGA (field programmable gate array), Ethernet.

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“…The symbol substitution and interleave are adopted for encryption [19]. Dynamic radius and phase offsets are added into the constellation to achieve multifold security data encryption [20]. A 7-D hyperchaos is adopted to implement two-layer encryption, where Walsh-Hadamard and discrete cosine transform are used to effectively reduce the computational complexity and increase the key space [21].…”

Section: Introductionmentioning

confidence: 99%

Multilayer Dynamic Encryption for Security OFDM-PON Using DNA-Reconstructed Chaotic Sequences Under Cryptanalysis

et al. 2021

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In this paper, a multilayer dynamic encryption scheme using deoxyribonucleic acid reconstructed chaotic sequences (DNA-RCS) under cryptanalysis is firstly proposed, which aims at enhancing the security of orthogonal frequency division multiplexing passive optical network (OFDM-PON). We adopt DNA coding to reconstruct chaotic sequences, the selected coding rules and the number of chaotic sequence blocks divided are then random, the randomness and security of encryption sequences are improved. The transmitted signal is encrypted in two layers. The first layer is hybrid chaotic permutation and diffusion. Each symbol can be encrypted by the combination of a single non-repetitive permutation and plaintextrelated diffusion. It makes encryption not only depend on the chaotic sequences but also relate to the order of permutation. The second layer is a dynamic Josephus permutation. By taking the unit as the permutation object, the scrambling efficiency is increased. Also, the counting period is randomly selected, which can enhance the security of the system. The number of tests needed to break a secure transmission for an attacker can reach up to 3.096 × 10 106 . An encryption signal with 22.06Gb/s is successfully demonstrated over a 25-km standard single-mode fiber (SSMF) and a back-to-back (BTB) system. It is proved that the proposed scheme does not degrade the system performance and can effectively resist various attacks by the performance analysis model based on cryptanalysis.

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Dynamic QAM Mapping for Physical-Layer Security Using Digital Chaos

Cited by 26 publications

References 24 publications

Channel-Based Dynamic Key Generation for Physical Layer Security in OFDM-PON Systems

Channel-Based Dynamic Key Generation for Physical Layer Security in OFDM-PON Systems

A New Method for Format Preserving Encryption in High-Data Rate Communications

Multilayer Dynamic Encryption for Security OFDM-PON Using DNA-Reconstructed Chaotic Sequences Under Cryptanalysis

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