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Qi super chaotic video encryption method based on FPGA

An encryption method and super chaotic technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve the problems of low efficiency, video encryption technology, and video encryption time-consuming, and achieve fast processing speed, good video encryption effect, and occupancy. The effect of less resources

Inactive Publication Date: 2018-01-19
TIANJIN POLYTECHNIC UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to provide a Qi hyperchaotic video encryption method based on FPGA to solve the problems of time-consuming and low efficiency of video encryption technology in the past and software implementation of video encryption

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  • Qi super chaotic video encryption method based on FPGA
  • Qi super chaotic video encryption method based on FPGA
  • Qi super chaotic video encryption method based on FPGA

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Embodiment Construction

[0057] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and specific examples, but the embodiments of the present invention are not limited thereto.

[0058] Experimental environment: the FPGA chip that the experiment of the present invention adopts is the EP4CE15F17C8 of Intel (Altera) company, and this chip comprises 15408 LE logic resources, 166 peripheral I / O ports, 504KB RAM memory resources, 112 built-in multipliers, 4 PLL clock management modules. The modular design on the Quartus II platform is realized through Verilog HDL language.

[0059] The present invention is a Qi hyperchaotic video encryption method based on FPGA, and the specific implementation process is as follows figure 1 As shown, the details are as follows:

[0060] 1) Enter 144 bits in the upper machine. In the implementation, the key we ente...

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Abstract

The invention discloses a Qi super chaotic video encryption method based on an FPGA, and belongs to the technical field of real-time video encryption. The method comprises the steps that a 144-bit secret key is input through an upper computer; through a serial port sending module, a Qi super chaotic system receives the secret key, and the Qi super chaotic system is controlled through an encryptionand decryption key to generate a pseudo random sequence; super chaotic encryption and decryption are conducted on video streaming data collected by a camera and an explicit address of a SDRAM; the data is cached by the SDRAM, and a video is displayed by a VGA. According to the method, an FPGA hardware mode is adopted, so that collection, display and super chaotic double encryption of the video are achieved, the video is smoothly displayed, elapsed time is short, few resources are occupied, the encryption effect is good, and secret key space is large; the method is mainly used for real-time video encryption.

Description

technical field [0001] The invention relates to the technical field of real-time video encryption, in particular to an FPGA-based Qi hyperchaotic video encryption method. Background technique [0002] With the development of science and technology and the progress of society, information security becomes more and more important. The security of information mainly depends on powerful encryption technology, among which the research on encryption technology represented by chaotic encryption has been highly valued by many scholars in the past 20 years. The chaotic system is a kind of complex nonlinear motion, which is highly sensitive to the initial conditions, and the motion trajectory is unpredictable for a long time. Therefore, the chaotic system shows very good cryptographic properties, so the encryption technology using chaos has become a research topic. hotspot. [0003] In the research of encryption based on chaos, many methods of using chaotic maps are used for chaotic...

Claims

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Application Information

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IPC IPC(8): H04L9/00H04N21/4408
Inventor 齐国元刘鹏
Owner TIANJIN POLYTECHNIC UNIV
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