Resistance of the double random phase encryption against various attacks

Area of Science:

• Computer Science
• Cryptography
• Image Processing

Background:

• Double Random Phase Encryption (DRPE) is a widely used encryption technique for digital images.
• Assessing the security of DRPE against various cryptanalytic attacks is crucial for its practical application.

Purpose of the Study:

• To investigate the security vulnerabilities of the double random phase encryption scheme.
• To propose and demonstrate effective cryptanalytic attacks against the DRPE scheme.

Main Methods:

• The study demonstrates several attacks on computer-generated ciphered images encrypted using the DRPE scheme.
• A specific technique is detailed for recovering the exact encryption keys using only two known plaintext-ciphertext pairs.

Main Results:

• The DRPE scheme exhibits resistance against brute force attacks.
• The scheme is susceptible to chosen and known plaintext attacks.
• The proposed technique successfully recovers exact keys with minimal known plain images.

Conclusions:

• The DRPE scheme's security is compromised by known plaintext attacks.
• The efficiency of key recovery using the proposed technique highlights significant security concerns.
• Further research is needed to develop more robust phase encryption methods.