An efficient image encryption algorithm using 3D-cyclic chebyshev map and elliptic curve.

Area of Science:

• Computer Science
• Cryptography
• Information Security

Background:

• Modern internet technologies necessitate robust security for transmitting large volumes of text and visual data.
• Cryptography is crucial for safeguarding image communication over secure channels.
• Existing methods may lack sufficient protection against sophisticated attacks.

Purpose of the Study:

• To propose an effective hybrid cryptosystem for securing sensitive image data.
• To develop tamper-proof cryptosystems and authentication mechanisms for image transmission.
• To enhance overall system security through a novel encryption approach.

Main Methods:

• Utilizing elliptic curve cryptography (ECC) for secret key generation.
• Employing chaotic maps to disguise and alter plain image pixel values.
• Implementing a hybrid cryptography approach combining ECC and chaotic maps.

Main Results:

• The proposed method demonstrates a large key space, resisting brute-force attacks.
• Analysis shows robustness against statistical and differential attacks.
• Evaluations including NPCR, UACI, PSNR, and keyspace analysis validate the algorithm's efficacy.

Conclusions:

• The developed image encryption algorithm is systematic and robust.
• It offers superior image encryption protection compared to some existing methods.
• The technique effectively ensures confidentiality and integrity of image data over networks.