Semiconductor-laser-based hybrid chaos source and its application in secure key distribution

Zhao, Zexi; Cheng, Mengfan; Luo, Chenkun; Deng, Lei; Zhang, Minming; Fu, Songnian; Tang, Ming; Shum, Ping; Liu, Deming

doi:10.1364/ol.44.002605

Cited by 35 publications

(9 citation statements)

References 21 publications

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“…A 182-kbit/s key distribution rate with 120-km fiber transmission was experimentally demonstrated by photonic-integrated optical-feedback lasers 13 . Subsequently, vertical-cavity surface-emitting laser under polarization-shift-keying optical injection 14 and analog–digital hybrid optical chaos source with phase-shift keying 15 were presented for key distribution. However, the final key rate of the laser-chaos-based distribution system with chaos-shift keying modulation is seriously restricted by the chaos synchronization recovery time in the magnitude of tens of nanoseconds which is limited by the laser relaxation oscillation frequency.…”

Section: Introductionmentioning

confidence: 99%

0.75 Gbit/s high-speed classical key distribution with mode-shift keying chaos synchronization of Fabry–Perot lasers

Gao

Wang

et al. 2021

Light Sci Appl

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High-speed physical key distribution is diligently pursued for secure communication. In this paper, we propose and experimentally demonstrate a scheme of high-speed key distribution using mode-shift keying chaos synchronization between two multi-longitudinal-mode Fabry–Perot lasers commonly driven by a super-luminescent diode. Legitimate users dynamically select one of the longitudinal modes according to private control codes to achieve mode-shift keying chaos synchronization. The two remote chaotic light waveforms are quantized to generate two raw random bit streams, and then those bits corresponding to chaos synchronization are sifted as shared keys by comparing the control codes. In this method, the transition time, i.e., the chaos synchronization recovery time is determined by the rising time of the control codes rather than the laser transition response time, so the key distribution rate is improved greatly. Our experiment achieved a 0.75-Gbit/s key distribution rate with a bit error rate of 3.8 × 10−3 over 160-km fiber transmission with dispersion compensation. The entropy rate of the laser chaos is evaluated as 16 Gbit/s, which determines the ultimate final key rate together with the key generation ratio. It is therefore believed that the method pays a way for Gbit/s physical key distribution.

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Section: Introductionmentioning

confidence: 99%

0.75 Gbit/s high-speed classical key distribution with mode-shift keying chaos synchronization of Fabry–Perot lasers

Gao

Wang

et al. 2021

Light Sci Appl

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“…Among the existing security schemes, encryption schemes based on chaotic systems are widely used in the fields of electronics [12] and optical signals [13] because of their pseudo-randomness, high sensitivity to initial values and ergodicity. Compared with the encryption technology in the optical field, including simulated optical chaos [14] and exclusive OR (XOR) interference [15], the chaotic encryption scheme that uses digital signal processing (DSP) processing in the electronic domain does not require additional optical components, which effectively reduces the system cost. So, the electronic domain encryption scheme based on chaos has been widely studied, such as constellation encryption [16][17][18], symbol and subcarrier scrambling [19][20][21][22], etc., these methods can obtain a huge key space and effectively guarantee the security of the system, but the use of a single chaotic system for signal encryption increases the risk of statistical analysis attacks.…”

Section: Introductionmentioning

confidence: 99%

FBMC/OQAM Security Strategy Based on Diversity DNA Encryption

et al. 2021

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In this paper, a diversity deoxyribonucleic acid (DNA) chaotic encryption strategy is proposed to enhance the physical layer security of the filter bank multi-carrier/offset quadrature amplitude (FBMC/OQAM) system. After the input original binary bit stream is encrypted, it is subjected to FBMC/OQAM modulation. The encryption process of bit data is dynamically controlled by the chaotic sequences generated by the hybrid chaotic system composed of improved-Logistic and delayed tent sine system, which enhances the robustness against malicious attacks by illegal attackers. The diversity DNA encryption strategy expands the key space of the system to 10 180 , which can ensure the physical layer security of the system. The proposed FBMC/OQAM security strategy based on chaotic encryption is transmitted on 25 km standard single mode fiber. Experimental results show that the diversity DNA encryption strategy can effectively ensure the security of transmitted data.

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“…In recent years, many secure schemes have been proposed [5], [6]. By virtue of its high pseudo randomness, unpredictability, and sensitivity to initial values [7], chaos is applied to the security encryption schemes in the electrical and optical domains [8]- [10].…”

Section: Introductionmentioning

confidence: 99%

A Novel Hybrid Secure Method Based on DNA Encoding Encryption and Spiral Scrambling in Chaotic OFDM-PON

et al. 2020

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This paper proposes a novel hybrid secure method based on improved deoxyribonucleic acid (DNA) encoding encryption and spiral scrambling in chaotic OFDM-PON for enhancing the physical-layer security. In the improved DNA encoding encryption, the oddeven cross-bit DNA encoding, base scrambling and base-level substitution are determined by chaotic sequences. For each binary and base, the selected encoding rules and base scrambling methods are dynamically changing, which enhances the robustness against malicious attacks by attackers. In the spiral scrambling process, the QAM symbol matrix is divided into several blocks, and these blocks are scrambled. In the scrambling of the plural matrix, the position where the spiral starts and the orientation and direction of the traversal are also controlled by the chaotic sequences. By employing DNA encoding encryption and spiral scrambling, a key space of ∼ 10 135 can be achieved in the multi-fold encryption of the proposed scheme, which can improve the physical-layer security. The encrypted 16-QAM OFDM data are successfully transmitted over a 60-km SSMF in OFDM-PON. The simulation results demonstrate that it has better BER performance at the BER of 10 −3 than other schemes. The proposed encryption method can effectively protect data from attacks by eavesdroppers or illegal users.

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Semiconductor-laser-based hybrid chaos source and its application in secure key distribution

Cited by 35 publications

References 21 publications

0.75 Gbit/s high-speed classical key distribution with mode-shift keying chaos synchronization of Fabry–Perot lasers

0.75 Gbit/s high-speed classical key distribution with mode-shift keying chaos synchronization of Fabry–Perot lasers

FBMC/OQAM Security Strategy Based on Diversity DNA Encryption

A Novel Hybrid Secure Method Based on DNA Encoding Encryption and Spiral Scrambling in Chaotic OFDM-PON

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