A secure OTP algorithm using a smartphone application. - Hoyul Choi; Hyunsoo Kwon; Junbeom Hur (ICUFN, 2015)

Password typos resilience in honey encryption. - Hoyul Choi; Hyunjae Nam; Junbeom Hur (ICOIN, 2017)

Password typographical error resilience in honey encryption. - Hoyul Choi; Jongmin Jeong; Simon S. Woo; Kyungtae Kang; Junbeom Hur (Comput. Secur., 2019)