Multi-key hybrid encryption optical codebook based on five-dimensional Hamiltonian conservative chaotic system

Area of Science:

• Optics and Information Security
• Computational Holography
• Chaos Theory

Background:

• Traditional codebook methods struggle with information capacity and security in the era of big data and supercomputing.
• Brute-force attacks pose a significant threat to conventional encryption techniques.
• Existing optical encryption methods require enhancement for improved security and data handling.

Purpose of the Study:

• To propose a computational holographic optical codebook system to overcome limitations of traditional methods.
• To enhance information capacity and security against brute-force attacks.
• To leverage chaotic systems for robust encryption key generation and management.

Main Methods:

• Development of a five-dimensional Hamiltonian conservative chaotic system (FHCCS) for generating chaotic sequences.
• Implementation of optical key mixing encryption using chaotic sequences for codebook and ciphertext encryption.
• Creation of the optical codebook using computer-generated holography (CGH) with hybrid encryption incorporating chaotic optical keys.

Main Results:

• The proposed system demonstrates high security and large information capacity.
• Fast decryption speeds were achieved, preserving the advantages of optical encryption.
• The optical codebook exhibited strong resistance to brute-force attacks, validating its practical value.

Conclusions:

• The computational holographic optical codebook based on FHCCS offers a secure and efficient solution for big data encryption.
• The hybrid encryption strategy significantly expands the key space, making it nearly unbreakable.
• The system presents considerable practical value due to its enhanced security, capacity, and attack resistance.