Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - CAPTCHA design
T2 - color, usability, and security
AU - El Ahmad, Ahmad Salah
AU - Yan, Jeff
AU - Ng, Wai Yin
PY - 2012/3
Y1 - 2012/3
N2 - Most user interfaces use color, which can greatly enhance their design. Because the use of color is typically a usability issue, it rarely causes security failures. However, using color when designing CAPTCHAs, a standard security technology that many commercial websites apply widely, can have an impact on usability and interesting but critical implications for security. Here, the authors examine some CAPTCHAs to determine whether their use of color negatively affects their usability, security, or both.
AB - Most user interfaces use color, which can greatly enhance their design. Because the use of color is typically a usability issue, it rarely causes security failures. However, using color when designing CAPTCHAs, a standard security technology that many commercial websites apply widely, can have an impact on usability and interesting but critical implications for security. Here, the authors examine some CAPTCHAs to determine whether their use of color negatively affects their usability, security, or both.
KW - CAPTCHAs
KW - color
KW - Internet security
KW - robustness
KW - usability
U2 - 10.1109/MIC.2011.102
DO - 10.1109/MIC.2011.102
M3 - Journal article
AN - SCOPUS:84858216868
VL - 16
SP - 44
EP - 51
JO - IEEE Internet Computing
JF - IEEE Internet Computing
SN - 1089-7801
IS - 2
M1 - 5959144
ER -