Namhun Koo

39 papers Misc 1Journal 37Unranked 1
YearRankTypeTitle / Venue / Authors
2026 J jnl
On Differential and Boomerang Properties of a Class of Binomials Over Finite Fields of Odd Characteristic.
IEEE Trans. Inf. Theory
Namhun Koo, Soonhak Kwon
2026 J jnl
The second-order zero differential uniformity of the swapped inverse functions over finite fields.
Discret. Math.
Jaeseong Jeong, Namhun Koo, Soonhak Kwon
2025 J jnl
Locally-APN Binomials with Low Boomerang Uniformity in Odd Characteristic.
CoRR
Namhun Koo, Soonhak Kwon, Minwoo Ko, Byunguk Kim
2025 J jnl
On Differential and Boomerang Properties of a Class of Binomials over Finite Fields of Odd Characteristic.
CoRR
Namhun Koo, Soonhak Kwon
2025 J jnl
On the functions which are CCZ-equivalent but not EA-equivalent to quadratic functions over Fpn.
Finite Fields Their Appl.
Jaeseong Jeong, Namhun Koo, Soonhak Kwon
2024 J jnl
Security Analysis of Reusing Vinegar Values in UOV Signature Scheme.
IEEE Access
Namhun Koo, Kyung-Ah Shim
2024 J jnl
The second-order zero differential uniformity of the swapped inverse functions over finite fields.
CoRR
Jaeseong Jeong, Namhun Koo, Soonhak Kwon
2023 J jnl
Investigations of
Finite Fields Their Appl.
Jaeseong Jeong, Namhun Koo, Soonhak Kwon
2023 J jnl
Low c-differential uniformity of the swapped inverse function in odd characteristic.
Discret. Appl. Math.
Jaeseong Jeong, Namhun Koo, Soonhak Kwon
2023 J jnl
On non-monomial APcN permutations over finite fields of even characteristic.
Finite Fields Their Appl.
Jaeseong Jeong, Namhun Koo, Soonhak Kwon
2023 J jnl
On the Functions Which are CCZ-equivalent but not EA-equivalent to Quadratic Functions over F
CoRR
Jaeseong Jeong, Namhun Koo, Soonhak Kwon
2023 J jnl
cc-differential uniformity, (almost) perfect cc-nonlinearity, and equivalences.
CoRR
Nhan-Phu Chung, Jaeseong Jeong, Namhun Koo, Soonhak Kwon
2022 J jnl
Constructing differentially 4-uniform involutions over F22k by using Carlitz form.
Finite Fields Their Appl.
Jaeseong Jeong, Namhun Koo, Soonhak Kwon
2022 J jnl
Efficient Implementations of Rainbow and UOV using AVX2.
IACR Trans. Cryptogr. Hardw. Embed. Syst.
Kyung-Ah Shim, Sangyub Lee, Namhun Koo
2022 J jnl
Investigations of c-Differential Uniformity of Permutations with Carlitz Rank 3.
CoRR
Jaeseong Jeong, Namhun Koo, Soonhak Kwon
2022 J jnl
Low c-Differential Uniformity of the Swapped Inverse Function in Odd Characteristic.
CoRR
Jaeseong Jeong, Namhun Koo, Soonhak Kwon
2022 J jnl
New differentially 4-uniform permutations from modifications of the inverse function.
Finite Fields Their Appl.
Jaeseong Jeong, Namhun Koo, Soonhak Kwon
2022 J jnl
On Cryptographic Parameters of Permutation Polynomials of the form
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Jaeseong Jeong, Chang Heon Kim, Namhun Koo, Soonhak Kwon, Sumin Lee
2022 J jnl
On non-monimial APcN permutations over finite fields of even characteristic.
CoRR
Jaeseong Jeong, Namhun Koo, Soonhak Kwon
2022 J jnl
On the boomerang uniformity of permutations of low Carlitz rank.
Finite Fields Their Appl.
Jaeseong Jeong, Namhun Koo, Soonhak Kwon
2020 J jnl
A High-Speed Public-Key Signature Scheme for 8-b IoT-Constrained Devices.
IEEE Internet Things J.
Kyung-Ah Shim, Cheol-Min Park, Namhun Koo, Hwajeong Seo
2020 J jnl
Algebraic Fault Analysis of UOV and Rainbow With the Leakage of Random Vinegar Values.
IEEE Trans. Inf. Forensics Secur.
Kyung-Ah Shim, Namhun Koo
2020 J jnl
An Efficient MQ-Signature Scheme Based on Sparse Polynomials.
IEEE Access
Kyung-Ah Shim, Cheol-Min Park, Namhun Koo
2020 J jnl
On the Boomerang Uniformity of Permutations of Low Carlitz Rank.
CoRR
Jaeseong Jeong, Namhun Koo, Soonhak Kwon
2019 J jnl
On cryptographic parameters of permutation polynomials of the form x
IACR Cryptol. ePrint Arch.
Jaeseong Jeong, Chang Heon Kim, Namhun Koo, Soonhak Kwon, Sumin Lee
2019 J jnl
On the Cipolla-Lehmer type algorithms in finite fields.
Appl. Algebra Eng. Commun. Comput.
Gook Hwa Cho, Byeonghwan Go, Chang Heon Kim, Namhun Koo, Soonhak Kwon
2018 J jnl
Side-Channel Attacks on Post-Quantum Signature Schemes based on Multivariate Quadratic Equations - Rainbow and UOV -.
IACR Trans. Cryptogr. Hardw. Embed. Syst.
Aesun Park, Kyung-Ah Shim, Namhun Koo, Dong-Guk Han
2017 — conf
An Existential Unforgeable Signature Scheme Based on Multivariate Quadratic Equations.
ASIACRYPT (1)
Kyung-Ah Shim, Cheol-Min Park, Namhun Koo
2017 J jnl
Cryptanalysis of RGB, a mixed multivariate signature scheme.
Finite Fields Their Appl.
Kyung-Ah Shim, Cheol-Min Park, Namhun Koo
2017 Misc conf
Security Analysis of Improved Cubic UOV Signature Schemes.
ICISC
Kyung-Ah Shim, Namhun Koo, Cheol-Min Park
2016 J jnl
On r-th Root Extraction Algorithm in 𝔽
IEEE Trans. Computers
Namhun Koo, Gook Hwa Cho, Soonhak Kwon
2015 J jnl
An Improvement of the Cipolla-Lehmer Type Algorithms.
CoRR
Namhun Koo, Gook Hwa Cho, Byeonghwan Go, Soonhak Kwon
2015 J jnl
New cube root algorithm based on the third order linear recurrence relations in finite fields.
Des. Codes Cryptogr.
Gook Hwa Cho, Namhun Koo, Eunhye Ha, Soonhak Kwon
2014 J jnl
Remarks on the Pocklington and Padró-Sáez Cube Root Algorithm in 𝔽
IACR Cryptol. ePrint Arch.
Geon Heo, Seokhwan Choi, Kwang Ho Lee, Namhun Koo, Soonhak Kwon
2013 J jnl
New Cube Root Algorithm Based on Third Order Linear Recurrence Relation in Finite Field.
IACR Cryptol. ePrint Arch.
Gook Hwa Cho, Namhun Koo, Eunhye Ha, Soonhak Kwon
2013 J jnl
On r-th Root Extraction Algorithm in F
IACR Cryptol. ePrint Arch.
Namhun Koo, Gook Hwa Cho, Soonhak Kwon
2013 J jnl
Square Root Algorithm in F
IACR Cryptol. ePrint Arch.
Namhun Koo, Gook Hwa Cho, Soonhak Kwon
2013 J jnl
Trace Expression of r-th Root over Finite Field.
IACR Cryptol. ePrint Arch.
Gook Hwa Cho, Namhun Koo, Eunhye Ha, Soonhak Kwon
2011 J jnl
On Nonlinear Polynomial Selection and Geometric Progression (mod N) for Number Field Sieve.
IACR Cryptol. ePrint Arch.
Namhun Koo, Gooc Hwa Jo, Soonhak Kwon