We revisit narrow-pipe designs that are in practical use, and their security against preimage
attacks. Our results are the best known preimage attacks on Tiger, MD4, and reduced SHA …

This paper proposes a new robust and secure perceptual image hashing technique based
on virtual watermark detection. The idea is justified by the fact that the watermark detector …

The content authenticity is critical for secure transmission of multimedia information. As a
promising solution, perceptual image hashing has gain great attention. In this paper, we …

Center Symmetric Local Binary Pattern (CSLBP) is widely used in texture and object
detection, but its utilization in image hashing is still limited. Image hashing is a powerful …

The rapid development of multimedia technology has resulted in a rising rate on digital
unauthorized utilization and forgery, which makes the situation of image authentication …

This paper presents a novel image hashing method for authentication and tampering
detection. Creation, modification and transfer of multimedia data becomes an easy task due …

It is well known that robustness, fragility, and security are three important criteria of image
hashing; however how to build a system that can strongly meet these three criteria is still a …

JH and Grøstl hash functions are two of the five finalists in NIST SHA-3 competition. JH-$ s $
and Grøstl-$ s $ are based on a $2 n $ bit compression function and the final output is …

This paper proposes a robust and secure perceptual image hashing technique based on
random sub-image selection, non-negative matrix factorization and DWT transform where …

Hash functions are often used to protect the integrity of information. In general, the design of
hash functions should satisfy three standards: pre-image resistance, second pre-image …