About us
We are Cryptology & Algorithm Lab and our leader is Professor Jae Hong Seo. Our main research interests are in cryptography especially zero-knowledge proof. Besides cryptography, we’re interested in artificial intelligence using deep learning such as face recognition and speaker recognition.
Annual News
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(Oct 29, 2023) The following paper has been accepted for presentation at the IEEE S&P 2024.
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Sunpill Kim, Yong Kiam Tan, Bora Jeong, Soumik Mondal, Khin Mi Mi Aung, and Jae Hong Seo
Scores Tell Everything about Bob: Non-adaptive Face Reconstruction on Face Recognition Systems
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(Oct 4, 2023) Papers led by C&A members won several awards at the National Cryptographic Technology Contest, 2023.
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The following paper won the Excellence Award. Congrats all authors who participated in this submission.
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Sunpill Kim, Seunghun Paik, Chanwoo Hwang, Dongsu Kim, Junbum Shin, and Jae Hong Seo
IDFace: Efficient and Secure Identification for Face Images
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The following paper won the Encouragement Award. Congrats all authors who participated in this submission.
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Sunpill Kim, Yong Kiam Tan, Bora Jeong, Soumik Mondal, Khin Mi Mi Aung, and Jae Hong Seo
Scores Tell Everything about Bob: Non-adaptive Face Reconstruction on Face Recognition Systems
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The following paper won the Special Award. Congrats all authors who participated in this submission.
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Hyeonbum Lee, Kyuhwan Lee, Jae Hong Seo, Wenyi Tang, Shankha Shubhra Mukherjee, and Taeho Jung
PrivHChain: Monitoring the Supply Chain of Controlled Substances with Privacy-Preserving Hierarchical Blockchain
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(Sep 26, 2023) HUCC, Crypto Club of Hanyang University, won the Top Excellence Award (최우수상) in Cryptanalysis Contest, 2023, hosted by Military Crypto Research Center. Congrats three of C&A members, Seunghun Paik, Chanwoo Hwang, and Minsu Kim, who are a leader and two members of HUCC.
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(Aug 22, 2023) The following paper has been accepted for presentation at the BMVC 2023 (Oral).
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Seunghun Paik, Sunpill Kim, and Jae Hong Seo
Security Analysis on Locality-Sensitive Hashing-Based Biometric Template Protection Schemes
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(Jul 25, 2023) The following paper has been accepted for publication in IEEE TIFS.
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Sungwook Kim, Hyeonbum Lee, Gwangwoon Lee, and Jae Hong Seo
Sublinear Verifier Inner Product Argument under Discrete Logarithm Assumption
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(July 13, 2023) There will be an invited lecture by Prof. Taeho Jung, Notre Dame.
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Date & Place : 10:30 AM, Jul 13 / Natural Science building 702
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Title : Cryptography and Blockchain for Secure and Private Web3 Ecosystem
(For more information, click the arrow)
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(May 31, 2023) The following paper has been accepted for publication in IWSEC 2023.
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Hyeonbum Lee and Jae Hong Seo
TENET : Sublogarithmic Proof, Sublinear Verifier Inner Product Argument without a Trusted Setup
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(May 13, 2023) Two of our members, Seunghun Paik and Minsu Kim, received the Top Academic Excellence Award (한양학업최우수상) from the President of Hanyang University.
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(Apr 20, 2023) The following paper has been accepted for publication in Designs, Codes and Cryptography.
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Hyung Tae Lee and Jae Hong Seo
On the Security of Functional Encryption in the Generic Group Model
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(Apr 20, 2023) Prof. Jae Hong Seo joins in the program committees of ASIACRYPT 2023 and PQCrypto 2023.
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(Feb 14, 2023) Bora Jeong won the Grand Prize in the Best Research Paper Award for graduate students by the Research Institute for Natural Sciences, Hanyang University.
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Bora Jeong, Sunpill Kim, Seunghun Paik, and Jae Hong Seo
Analysis on Secure Triplet Loss.
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(Jan 5, 2023) Our student captain, Sunpill Kim, visits A*STAR at Singapore, one of the world's leading research institutes, for a year-long collaborative research. We wish him success in his studies at A*STAR.
We share information with each other through various seminars/studies that support research capabilities every summer/winter vacation to enhance research and inquiry skills. Each season, the main topic changes and the schedule also changes accordingly. External personnel are also free to participate, and you can attend by filling out the form from above link.
23 Summer
IVC
| Seminar Schedule - IVC |
| Date |
Time |
Place |
Presenter |
Topic |
Material |
Blog Post |
| 6/27 |
01:00PM |
701 |
Hyeonbum Lee |
Nova : Recursive Zero Knowledge Arguments from Folding Schemes(DOI) |
|
|
| 7/6 |
| 7/11 |
07:00PM |
702 |
Hyunjung Son |
SuperNova: Proving universal machine executions without universal circuits(DOI) |
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| 7/18 |
01:00PM |
701 |
Seongae Baek |
Customizable constraint systems for succinct arguments(DOI) |
|
|
| 7/25 |
| 8/1 |
01:00PM |
751 |
Hyeonbum Lee |
Hypernova : Recursive arguments for customizable constraint systems(DOI) |
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|
| 8/8 |
702 |
| 8/14 |
01:00PM |
701 |
Hyunjung Son |
Protostar : Generic Efficient Accumulation/Folding for Special-sound Protocols(DOI) |
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|
| TBD |
|
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Deep Learning
| Seminar Schedule - Deep Learning Paper |
| Date |
Time |
Place |
Presenter |
Topic |
Material |
Blog Post |
| 7/12 |
10:00AM |
702 |
Bora Jeong |
DeepFool: A simple and accurate method to fool deep neural networks (CVPR'16)(DOI) |
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| Seunghun Paik |
Adversarial Examples Are Not Bugs, They Are Features (NIPS'19 Spotlight)(DOI) |
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| 7/19 |
10:00AM |
702 |
Chanwoo Hwang |
Adversarial Patch (arXiv'17)(DOI) |
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| Dongsu Kim |
Efficient Decision-based Black-box Adversarial Attacks on Face Recognition (CVPR'19)(DOI) |
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| 7/26 |
10:00AM |
702 |
Minsu Kim |
Universal adversarial perturbations (CVPR'17)(DOI) |
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| 8/2 |
10:00AM |
702 |
Bora Jeong |
Iris Recognition |
(LINK) |
(LINK) |
| Seunghun Paik |
Understanding Adversarial Examples |
(LINK) |
(LINK) |
| 8/9 |
10:00AM |
702 |
Chanwoo Hwang |
What is Dataset Distillation? |
(LINK) |
(LINK) |
| 8/16 |
10:00AM |
702 |
Dongsu Kim |
Predictive Coding |
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| 8/30 |
10:00AM |
TBA |
Hyeonkyu Kim |
Recurrent Neural Network |
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| 9/1 |
03:00PM |
TBA |
Minsu Kim |
Fuzzy Extractor |
|
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ZKP Basic
| Seminar Schedule - ZKP Basic |
| Date |
Time |
Place |
Presenter |
Topic |
Material |
Blog Post |
| 7/07 |
02:00PM |
702 |
Junhee Cho |
proofs, interactive proofs, schwarz-zippel lemma, multilinear extension |
|
|
| 7/14 |
10:00AM |
702 |
Yunki Kim |
sumcheck protocol |
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| 7/21 |
02:00PM |
702 |
Seongae Baek |
application of sum-check protocol |
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| 7/28 |
02:00PM |
702 |
Seongae Baek |
GKR protocol |
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| 8/04 |
02:00PM |
702 |
Junhee Cho
Yunki Kim |
non-interactive proofs, random oracle model, fiat-shamir heuristic
argument of knowledge, knowledge soundness |
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| 8/10 |
02:00PM |
702 |
Yunki Kim |
zero-knowledge, sigma protocol |
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22-23 Winter
Deep Learning
Computational Number Theory & Algebra
| Seminar Schedule - Computational Number Theory & Algebra |
| Book : A computational Introductiobn to Numver Theory and Algebra second Edition |
| Date |
Time |
Place |
Topic |
| 1/5 |
01:00PM |
702 |
Chap. 1 ~ 4, Review on Number Theory and Integer Arithmetics |
| 1/12 |
01:00PM |
702 |
Chap. 8 ~ 9, Probabilistic Distributions and Algorithms on  |
| 1/19 |
01:00PM |
702 |
Chap. 10 ~ 12, More Probabilistic Algorithms on (e.g. Miller-Rabin Test) |
| 1/26 |
01:00PM |
702 |
Chap. 6,7,13,14, Groups, Rings, Modules, and Vector Spaces |
| 2/2 |
01:00PM |
702 |
Chap. 16, More on Rings (e.g. Field Extension, PID, UFD, ...) |
| 2/9 |
01:00PM |
702 |
Chap. 17 ~ 18, Polynomial Arithmetics, and Linearly Generated Sequences |
| 2/16 |
01:00PM |
702 |
Chap. 19 ~ 20, Finite Fields, Algorithms for Finite Fields (e.g. Cantor-Zassenhaus Algorithm) |
| 2/23 |
01:00PM |
702 |
Chap. 15, 21, Dixon’s Method, Index Calculus Method, and AKS Algorithm |
Algorithm
| Seminar Schedule - Algorithm |
| Every Wednesday at 1pm |
Zero Knowledge Proof
| Seminar Schedule - Zero Knowledge Proof |
| TBD |
Note that the contents of the seminar will be shared through the following blog post.
For any inquires, you can reach us via email: webmaster.cnalab@gmail.com