Chaotic Video Encryption Method Based on Sliding Encryption Window
An encryption method and video technology, applied in the direction of secure communication through chaotic signals, digital video signal modification, digital transmission system, etc., can solve the problems of high encryption calculation overhead, achieve high encryption efficiency, enhance anti-attack performance, and fast operation speed Effect
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specific Embodiment approach 1
[0034] Specific implementation mode 1. Combination Figure 1 to Figure 7 Describe this embodiment, the chaotic video encryption method based on the sliding encryption window, according to the H.264 video coding standard, the encryption block diagram of the encryption method in this embodiment is as follows figure 1 As shown, the encryption flow chart is as follows figure 2 shown.
[0035] Select the bus video data with a size of 352×288. This embodiment runs under the JM8.6 basic mode of H.264, the video length is 30 frames, the entropy coding mode is CAVLC, and the I frame interval is 8, wherein the 20th frame is extracted. Frame raw image such as Figure 4 , the ciphertext image of the 20th frame after encryption is as follows Figure 5 shown.
[0036] In this embodiment, the user key is composed of four parts: 1. the control parameters of the composite chaotic map, 2. the initial value of the composite chaotic map, the control parameters of the three-cell quantum cellu...
specific Embodiment approach 2
[0079] Specific embodiment two, combine Figure 1 to Figure 7 , based on the chaotic video encryption method, according to the H.264 video coding standard, the encryption block diagram of the encryption method in this embodiment is as follows figure 1 As shown, the encryption process is shown in the flow figure 2 . Select the "calendar" video data with a size of 176×144. This embodiment operates under the JM8.6 basic mode of H.264. The video length is 100 frames, the entropy coding mode is CAVLC, and the I frame interval is 8. 90 frames of original images such as Figure 6 , the ciphertext image of the 90th frame after encryption is as follows Figure 7 shown.
[0080] In this embodiment, the user key is composed of four parts: ① the control parameters of the compound chaotic map, ② the initial value of the compound chaotic map, ③ the control parameters of the three-cell quantum cellular neural network, and ④ the initial value of the three-cell quantum cellular neural net...
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