Jooyoung Lee

Towards Key-Length Extension with Optimal Security: Cascade Encryption and Xor-cascade Encryption.

2015 · IACR Cryptology ePrint Archive

This paper discusses provable security of two types of cascade encryptions. The rst construction CE l , calledl-cascade encryption, is obtained by sequentially composingl blockcipher calls with independent keys. The security of CE l has …

Development of a Writing Ability Diagnosis System for University First-year Students － The Seoul National University Essay Examination

2022

대학 글쓰기 교육에서 수준별 교육을 실현하기 위해서는 신입생의 글쓰기 능력 진단이 필수적이다. 본 연구에서는 서울대학교 학부 신입생들의 글쓰기 능력 평가 도구를 개발하기 위해 국내외 사례들을 살펴보고 관련 문헌 고찰을 바탕으로 평가 도구 설계 안을 구축하였다. …

Comparison of L2 Korean pronunciation error patterns from five L1 backgrounds by using automatic phonetic transcription

2023 · arXiv (Cornell University)

This paper presents a large-scale analysis of L2 Korean pronunciation error patterns from five different language backgrounds, Chinese, Vietnamese, Japanese, Thai, and English, by using automatic phonetic transcription. For the analysis, confusion matrices are generated …