The robustness of hollow CAPTCHAs

Haichang Gao, Wei Wang, Jiao Qi, Xuqin Wang, Xiyang Liu, Jeff Yan. The robustness of hollow CAPTCHAs. In Ahmad-Reza Sadeghi, Virgil D. Gligor, Moti Yung, editors, 2013 ACM SIGSAC Conference on Computer and Communications Security, CCS'13, Berlin, Germany, November 4-8, 2013. pages 1075-1086, ACM, 2013. [doi]

Authors

Haichang Gao

This author has not been identified. Look up 'Haichang Gao' in Google

Wei Wang

This author has not been identified. Look up 'Wei Wang' in Google

Jiao Qi

This author has not been identified. Look up 'Jiao Qi' in Google

Xuqin Wang

This author has not been identified. Look up 'Xuqin Wang' in Google

Xiyang Liu

This author has not been identified. Look up 'Xiyang Liu' in Google

Jeff Yan

This author has not been identified. Look up 'Jeff Yan' in Google