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Kimia Tajik

dblp:238/9909 · DBLP profile ↗
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2ranked-venue papers
1as first author
1since 2021 · last 2022
—ORCID · none

Domains — the database's venue-derived domains; a paper can count in several

Security and privacy · 2 · 1 first-author · 1 since 2021

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Network and information security
1 paper
Privacy and data protection · 87% Cryptographic primitives and cryptanalysis · 13%

Topics — the 3 heaviest of 3, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Privacy and data protection
image privacy
0.412019
Balancing Image Privacy and Usability with Thumbnail-Preserving Encryption · NDSS 2019
Privacy and data protection › image privacy
thumbnail-preserving encryption
0.412019
Balancing Image Privacy and Usability with Thumbnail-Preserving Encryption · NDSS 2019
Cryptographic primitives and cryptanalysis
encryption
0.112019
Balancing Image Privacy and Usability with Thumbnail-Preserving Encryption · NDSS 2019
YearPublicationVenuePosition
2022 Adversarial Images Against Super-Resolution Convolutional Neural Networks for Free
abstract
Super-Resolution Convolutional Neural Networks (SRCNNs) with their ability to generate highresolution images from low-resolution counterparts, exacerbate the privacy concerns emerging from automated Convolutional Neural Networks (CNNs)-based image classifiers. In this work, we hypothesize and empirically show that adversarial examples learned over CNN image classifiers can survive processing by SRCNNs and lead them to generate poor quality images that are hard to classify correctly. We demonstrate that a user with a small CNN is able to learn adversarial noise without requiring any customization for SRCNNs and thwart the privacy threat posed by a pipeline of SRCNN and CNN classifiers (95.8% fooling rate for Fast Gradient Sign with ε = 0.03). We evaluate the survivability of adversarial images generated in both black-box and white-box settings and show that black-box adversarial learning (when both CNN classifier and SRCNN are unknown) is at least as effective as white-box adversarial learning (when only CNN classifier is known). We also assess our hypothesis on adversarial robust CNNs and observe that the supper-resolved white-box adversarial examples can fool these CNNs more than 71.5% of the time.
Arezoo Rajabi, Mahdieh Abbasi, Rakesh Bobba, Kimia Tajik
Proc. Priv. Enhancing Technol.4
2019 Balancing Image Privacy and Usability with Thumbnail-Preserving Encryption
Kimia Tajik, Akshith Gunasekaran, Rhea Dutta, Brandon Ellis, Rakesh Bobba, Mike Rosulek, Charles V. Wright, Wu-chi Feng
NDSS1