Target localization image encryption of wind turbines based on DNA strand replacement rule

The continuous development of the industrial internet of things has raised increasingly high requirements for the secure storage and transmission of information. Ensuring that image information avoids malicious attacks and tampering during transmission has become an important aspect of information security. In response to the security requirements for drone-captured image transmission during wind turbine inspection, this paper proposes a new target localization encryption scheme based on DNA strand replacement rules. In traditional methods using DNA encryption, the DNA computing rules used include DNA addition, DNA subtraction, and DNA XOR operations. These operations are relatively simple and have weak biological relevance, making them vulnerable to attack and decryption. To address this issue, this article introduces the principle of DNA strand replacement reaction and proposes a DNA strand displacement reaction rule. The rule has stronger biological relevance and more complex operational rule than traditional DNA algorithms, thus providing stronger security for encrypted images. Experimental results indicate that this encryption algorithm effectively enhances the information security of ciphertext images and can withstand brute-force attacks and various statistical attacks.