Edwards curve digital signature algorithm for video integrity verification on blockchain framework

Area of Science:

• Forensic Science
• Cybersecurity
• Digital Forensics

Background:

• Video evidence is crucial in legal cases, but digital manipulation tools pose a threat to its integrity.
• Ensuring video authenticity is vital for maintaining justice and the reliability of visual evidence.
• Current methods for video integrity verification may lack efficiency or robustness against sophisticated attacks.

Purpose of the Study:

• To propose a novel, lightweight approach for verifying the integrity of video data.
• To enhance the security and dependability of digital video evidence in forensic science.
• To develop a method suitable for resource-constrained devices.

Main Methods:

• Utilizes blockchain technology for chronological storage and immutability.
• Employs the Edwards Curve Digital Signature Algorithm for secure signing of video segments.
• Incorporates the BLAKE2b hash function for data integrity checks.
• Chains block signatures for enhanced security against tampering.

Main Results:

• The proposed method demonstrates superior speed and security compared to state-of-the-art techniques.
• Effectively identifies all types of video forgery, regardless of the perpetrator or timing.
• Requires insignificant additional storage space.
• Security analysis confirms resilience against collision, key substitution, side-channel, and chosen message attacks.

Conclusions:

• The developed lightweight video integrity verification method is highly effective and efficient.
• It provides a robust solution for securing digital video evidence in forensic applications.
• The approach is particularly well-suited for deployment on devices with limited resources.