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 robustness
T2 - a security engineering perspective
AU - Yan, Jeff
AU - El Ahmad, Ahmad Salah
PY - 2011/2
Y1 - 2011/2
N2 - Captchas are a standard defense on commercial websites against undesirable or malicious Internet bot programs, but widely deployed schemes can be broken with simple but novel attacks. Applying security engineering expertise to the design of Captchas can significantly improve their robustness.
AB - Captchas are a standard defense on commercial websites against undesirable or malicious Internet bot programs, but widely deployed schemes can be broken with simple but novel attacks. Applying security engineering expertise to the design of Captchas can significantly improve their robustness.
KW - Captchas
KW - Internet security
KW - Robustness
KW - Security engineering
KW - Segmentation
U2 - 10.1109/MC.2010.275
DO - 10.1109/MC.2010.275
M3 - Journal article
AN - SCOPUS:79951931349
VL - 44
SP - 54
EP - 60
JO - Computer
JF - Computer
SN - 0018-9162
IS - 2
M1 - 5601666
ER -