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<p>10-Gigabit-capable symmetric passive optical network (XGS-PON) has discovered as an affordable way to satisfy the expanding bandwidth needs of today in the family of next-generation passive optical networks stage 2 (NG-PON2). It accommodates different quality of services (QOS) like cloud storage, network browsing, video streaming live, etc., where these services are necessary for security and bandwidth, which is limited. To get around this restriction, bandwidth schemes management, safe authentication mutual and key establishment are employed by central authorities between optical network units (ONUs) and optical line termination (OLT) units in a distribution optical network (ODN). According to the International Telecommunication Union Telecommunication (ITU-T) G.9807.1 series standards, Hill Group algorithm ciphers have been utilize together with the Opti-System software. In addition to strong cryptographic performance in terms of key space, entropy, correlation, and resistance to statistical and differential assaults, simulation results validate appropriate BER, Q-factor, and receiver sensitivity. Four different grayscale images are broadcast simultaneously at 10Gbps each, for a total capacity of 40Gbps. A bidirectional distance fiber with a ratio of splitting 1:64 can be successfully implemented at 60&#xa0;km. The least amount of acceptable receiver sensitivity is -28.1dBm for uplink (U/S) and − 23.7dBm for downlink (D/S). Inter-symbol interference (ISI) between 16 ONUs of each wavelength is also analyzed and processed, and each user has their own dynamic Y switches 1 and 2 to prevent this phenomenon.</p>

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Enhancing communication security of an image encryption based on XGS-PON with utilizing Hill group cipher

  • 期刊论文

  • 发表日期：

    2026年3月14日

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  • Ahmed Hussein Ali,
  • Baydaa Al-Hamadani,
  • Essam N. Abdulla,
  • Hayder H. Al-khaylani

摘要

10-Gigabit-capable symmetric passive optical network (XGS-PON) has discovered as an affordable way to satisfy the expanding bandwidth needs of today in the family of next-generation passive optical networks stage 2 (NG-PON2). It accommodates different quality of services (QOS) like cloud storage, network browsing, video streaming live, etc., where these services are necessary for security and bandwidth, which is limited. To get around this restriction, bandwidth schemes management, safe authentication mutual and key establishment are employed by central authorities between optical network units (ONUs) and optical line termination (OLT) units in a distribution optical network (ODN). According to the International Telecommunication Union Telecommunication (ITU-T) G.9807.1 series standards, Hill Group algorithm ciphers have been utilize together with the Opti-System software. In addition to strong cryptographic performance in terms of key space, entropy, correlation, and resistance to statistical and differential assaults, simulation results validate appropriate BER, Q-factor, and receiver sensitivity. Four different grayscale images are broadcast simultaneously at 10Gbps each, for a total capacity of 40Gbps. A bidirectional distance fiber with a ratio of splitting 1:64 can be successfully implemented at 60 km. The least amount of acceptable receiver sensitivity is -28.1dBm for uplink (U/S) and − 23.7dBm for downlink (D/S). Inter-symbol interference (ISI) between 16 ONUs of each wavelength is also analyzed and processed, and each user has their own dynamic Y switches 1 and 2 to prevent this phenomenon.