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A Fiber Encryption Method Based on FPGA

An encryption method and encryption algorithm technology, applied in multiplexing system selection devices, wavelength division multiplexing systems, electrical components, etc., can solve problems such as easy data loss and imperfect frame structure, to ensure link security performance, avoid deciphering and eavesdropping

Active Publication Date: 2022-02-11
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the single AES encryption used in this project has already been broken, and the design of the frame structure is not perfect, the data is easily lost, and there are hidden dangers

Method used

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  • A Fiber Encryption Method Based on FPGA
  • A Fiber Encryption Method Based on FPGA
  • A Fiber Encryption Method Based on FPGA

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0052] Depend on figure 1 with image 3 As can be seen, the FPGA-based optical fiber encryption method of the present invention comprises the following steps:

[0053] (1) Obtain plaintext PT;

[0054] (2) Obtain the key KT of the FPE encryption mode with the Logistic model;

[0055] (3) Use the key KT to encrypt the plaintext PT to obtain the ciphertext C;

[0056] (4) Pipeline accelerated ciphertext C;

[0057] (5) Convert the bit width of the ciphertext C data;

[0058] (6) Send data using the frame structure customized by the Aurora protocol;

[0059] (7) The receiving end caches the received data and strips the frame structure;

[0060] (8) The receiving end decodes the ciphertext C to obtain the plaintext PT.

[0061] Depend on figure 2 It can be seen that the step (2) of the present invention adopts the Feistel structure, and ...

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PUM

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Abstract

The invention discloses an FPGA-based optical fiber encryption method, comprising the following steps: (1) obtaining plaintext PT; (2) obtaining a key KT of an FPE encryption mode with a Logistic model; (3) encrypting the plaintext PT with the key KT, Obtain ciphertext C; (4) Pipeline accelerated ciphertext C; (5) Convert the bit width of ciphertext C data; (6) Send data using the frame structure customized by Aurora protocol; (7) The receiving end buffers the received data and strips Frame structure; (8) The receiver decodes the ciphertext C to obtain the plaintext PT. The invention effectively guarantees the link security of the communication, avoids the deciphering and eavesdropping of the video stream data; the overall communication rate can reach 6.25Gpbs.

Description

technical field [0001] The invention relates to an encryption method, in particular to an FPGA-based optical fiber encryption method. Background technique [0002] Optical fiber communication is widely used because of its low loss and high anti-interference. With the increasing requirements for bandwidth and speed, high-speed communication has become a basic requirement. The traditional optical communication system is to ensure the transmission bandwidth and throughput without considering the protection of information security. In recent years, due to the leakage of a large number of user data, great losses have been caused, and information security has become the focus of attention. [0003] At present, the research on optical fiber encryption mostly adopts the method of quantum encryption. At present, there are many loopholes in actual engineering at home and abroad, and it is impossible to achieve absolute security in optical fiber communication, and there is a long way...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/516H04J14/02H04Q11/00
CPCH04B10/516H04Q11/0062H04J14/02
Inventor 周立胡芳仁
Owner NANJING UNIV OF POSTS & TELECOMM
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