## 5 Experiments and Analysis of Results
### Experimental Results and Analysis
#### 5.3.2 Results and Analysis of Comparative Experiments  
This paper set up three comparison schemes. The first is traditional AES, the second is ECC encryption, and the third is RSA encryption. Table 4 shows the time overhead of the ablation experiment in this paper, and Table 5 shows the results of different schemes in the three indicators of average transmission delay, acceleration ratio and throughput. \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Number/Programs** & **Base** & **Base+Asy** & **Base+Asy+Pre** \\ \hline
5000 & 4.134849548339844 & 2.0538666248321533 & 0.6211769580841064 \\
10,000 & 8.30025029182434 & 4.113954076230225 & 1.240045785908930307 \\
15,000 & 12.543816328048706 & 6.1886521547698975 & 1.5061593971252441 \\
20,000 & 16.73871278628174 & 8.258046627044678 & 2.4794530868530273 \\
25,000 & 20.921735048294067 & 10.34538549118042 & 30.0894854068756104 \\
30,000 & 24.88657546043396 & 12.486168622970581 & 3.7016258239746094 \\
35,000 & 28.518568754196167 & 14.789013862609863 & 4.307711601257324 \\
40,000 & 32.04740023612976 & 16.875220775604248 & 4.919358730316162 \\
45,000 & 35.65852117538452 & 19.01898193359375 & 5.52838921546936 \\
50,000 & 37.887696266174316 & 21.254720449447632 & 6.142529487609863 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Time overhead of ablation experimental scheme. \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Programs/Indicators** & **Average Transmission Delay** & **Throughput** & **Acceleration Ratio** \\  & **s/KB** & **KB/s** & **Acceleration Ratio** \\ \hline Base & 0.006062031 & 164.9612042 & 1 \\ Base+Asy & 0.003400755 & 294.0523266 & 1.782554438 \\ Base+Asy+Pre & 0.000982805 & 1017.496133 & 6.16809351 \\ \hline \hline \end{tabular}
\end{table} 
Table 3: The three programs correspond to the index results. Through the analysis of the data in Table 5, the following conclusions can be drawn:  
From the perspective of average transmission delay, the delay of the ECC scheme is the lowest, only 0.00090 s/KB, and it performs well in terms of encryption operation speed. This shows that ECC is extremely efficient when dealing with tasks such as key exchange due to its efficient elliptic curve algorithm. However, ECC has some limitations in data block encryption or large-scale transmission since it is difficult to transmit large-scale data, and the security cannot be compared with RSA and AES. In contrast, the AES+Pre scheme has an average transmission delay of 0.00098 s/KB, which is only slightly higher than ECC, but significantly better than AES (0.00193 s/KB) and RSA (0.00427 s/KB). This shows that by introducing the optimization strategy of pre-processing (Pre) on the basis of AES, the delay problem in encryption and transmission process is greatly reduced, while maintaining the efficiency and low computational cost of the AES algorithm. In terms of throughput, the AES+Pre scheme achieves 1017.50 KB/s, which is 196% of the throughput of the AES base scheme (517.89 KB/s) and much higher than RSA (234.33 KB/s). Although the throughput of the ECC scheme is higher (1105.06 KB/s), its advantages are more reflected in small packet transmission scenarios such as key exchange, and it does not have significant advantages in the processing of large-scale data streams. The high throughput of AES+Pre benefits from its preprocessing optimization. This strategy improves the efficiency of data transmission by calculating in advance and reducing the burden of encryption and decryption at runtime, which is especially suitable for high-frequency and large-scale data transmission tasks. Against the AES base scheme (acceleration ratio of 1), the AES+Pre scheme has an acceleration ratio of 1.96, which is almost twice that of AES. This result proves that the preprocessing mechanism significantly improves the system performance, especially for high performance encryption requirements. AES+Pre can provide similar acceleration ratio performance to ECC, but the consumption of computing resources is lower.