The highest way to protect data from intruder and unauthorized persons has become a major issue. This matter led to the development of many techniques for data security, such as Steganography, Cryptography, and Watermarking to disguise data. This paper proposes an image steganography method using the Least Significant Bits (LSB) technique and XOR operator and a secret key, through which the secret key is transformed into a one-dimensional bit stream array, then these bits are XORed with the bits of the secret image. Multiple experiments have been performed to embed color and grayscale images inside cover media. In this work, the LSB technique is ideal in two ways: firstly, only the least significant one-bit (1bit) of each byte will store the embedded data, this method is named (1-LSB). Secondly, the four least significant bits of the right half-byte (4 bits) of each byte will store the embedded data, this method is named (4-LSB). Subjective and objective analyzes were performed for each LSB process. The subjective analysis is responsible for both HVS and histogram, whereas the objective analysis involved both PSNR and MSE metrics.
With the speedy development of big data technology and applications, the need to promote data sharing across departments and industries has become very instant. But Yes, security issues are key issues affecting the development of data sharing. Countries around the world are paying more and more attention to the security of data sharing, including the United States.Many countries, including the EU and China, are developing data security-related laws and regulations to support the legal use and security of data sharing protection. Summarize and analyze the security management and control of data sharing at home and abroad, design the data-sharing model and related party roles, and analyze the numbers.Based on the shared security risks and problems, the data sharing security framework is proposed, and finally, the data sharing security governance is strengthened suggestions.
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