Clean-label Backdoor Attack against Deep Hashing based Retrieval. (arXiv:2109.08868v2 [cs.CV] UPDATED)

Deep hashing has become a popular method in large-scale image retrieval due
to its computational and storage efficiency. However, recent works raise the
security concerns of deep hashing. Although existing works focus on the
vulnerability of deep hashing in terms of adversarial perturbations, we
identify a more pressing threat, backdoor attack, when the attacker has access
to the training data. A backdoored deep hashing model behaves normally on
original query images, while returning the images with the target label when …

arxiv backdoor hashing retrieval