Human Interactive Proofs (HIPs) are automatic reverse Turing tests designed to distinguish between various groups of users. Completely Automatic Public Turing test to tell Computers and Humans Apart (CAPTCHA) is a HIP system that distinguish between humans and malicious computer programs. Many CAPTCHAs have been proposed in the literature that text-graphical based, audio-based, puzzle-based and mathematical questions-based. The design and implementation of CAPTCHAs fall in the realm of Artificial Intelligence. We aim to utilize CAPTCHAs as a tool to improve the security of Internet based applications. In this paper we present a framework for a text-based CAPTCHA based on Devanagari script which can exploit the difference in the reading proficiency between humans and computer programs. Our selection of Devanagari script-based CAPTCHA is based on the fact that it is used by a large number of Indian languages including Hindi which is the third most spoken language. There is potential for an exponential rise in the applications that are likely to be developed in that script thereby making it easy to secure Indian language based applications.
Filter by Year
Filter by Author
P. D. Gujrati (8)
Manish Shrivastava (7)
Partha Pratim Roy (5)
Umapada Pal (5)
Ayan Kumar Bhunia (4)
Iti Mathur (4)
Manish Shrivastava (7)
Partha Pratim Roy (5)
Umapada Pal (5)
Ayan Kumar Bhunia (4)
Iti Mathur (4)
Nisheeth Joshi (4)
C.V. Jawahar (4)
Sahil Swami (3)
Dipak Kumar Basu (3)
Nibaran Das (3)
Dipak kumar Basu (3)
Akash Mohta (3)
Kamal Sarkar (3)
Ankush Khandelwal (3)
Pushpak Bhattacharyya (3)
Subhadip Basu (3)
Mita Nasipuri (3)
Mahantapas Kundu (3)
Ram Sarkar (3)
Richa Sharma (2)
Prakash B. Pimpale (2)
Sabir Ismail (2)
Nurendra Choudhary (2)
Shweta Nigam (2)
Bidisha Samanta (2)
MD. Saiful Islam (2)
Raj Nath Patel (2)
B.B. Chaudhuri (2)
Mohd Zeeshan Ansari (2)
Syed Sarfaraz Akhtar (2)
Md. Saiful Islam (2)
Rajat Singh (2)
U. Pal (2)
Rekha Jain (2)
P.J. Narayanan (1)
Dipti Mishra Sharma (1)
Devendra Sachan (1)
A. K. A. Azad (1)
Minhaz Uddin Ahmed (1)
P. P. Aung (1)
Vasudeva Varma (1)
Pramod Pandey (1)
Shashi Pal Singh (1)
S.S. Ravi Kiran (1)
Dipaloke Saha (1)
M. Kameswara Rao (1)
Deepti Chopra (1)
Ching Y. Suen (1)
Pawan Goyal (1)
M Rema (1)
Md. Nawab Yousuf Ali (1)
John Everatt (1)
Atul Kr. Ojha (1)
Tasmin Afroz (1)
Srikanth Ronanki (1)
Kaustubh Bhattacharyya (1)
Rajmohan Pardeshi (1)
Lukáš Neumann (1)
Sakshi Gupta (1)
Manju Manuel (1)
Preethi Jyothi (1)
Shrey Dutta (1)
Uma Shanker Tiwary (1)
S. Madhvanath (1)
Md. Shopon (1)
Shantipriya Parida (1)
M.N.S.S.K. Pavan Kumar (1)
Rohit Mishra (1)
Srikanth Doddamani (1)
Neeraj Battan (1)
Md Zahangir Alom (1)
Ashis Kumar Mandal (1)
Suman Banerjee (1)
S. Sphoorthy Reddy (1)
Anirudh Dahiya (1)
Akanksha Gehlot (1)
Sufal Das (1)
Somnath Roy (1)
Md Saddam Hossain (1)
Raveena R Kumar (1)
Nitish Joshi (1)
Sagar S. Rane (1)
Rajasree M S (1)
Bajibabu Bollepalli (1)
Mohit Jain (1)
Irina Temnikova (1)
K. C. Santosh (1)
Shaikh Muhammad Allayear (1)
T.S. Naveen (1)
Vivek Kr Verma (1)
Priya Rani (1)
Aditya Joshi (1)
ARUN K. PUJARI (1)
Peheding Sidike (1)
Girish Nath Jha (1)
Jiří Matas (1)
Ajai Kumar (1)
Kamlesh Sharma (1)
Md. Fahad Hasan (1)
Jahid Hassan (1)
Deepak Gupta (1)
Suranjit SinhaUmapada PalB. B. Chaudhuri (1)
Mallikarjun Hangarge (1)
Nicola Nobile (1)
M.B. SUKHASWAMI (1)
Rohit Sinha (1)
A. Hassan (1)
Rezwana Sharmeen (1)
Niloy Ganguly (1)
Nadir Durrani (1)
Osama Alsaad (1)
Siva Reddy (1)
Utpal Sharma (1)
Purnendu Banerjee (1)
P. SEETHARAMULU (1)
G Manoj Kumar (1)
Satya Ranjan Dash (1)
Bidyut B. Chaudhuri (1)
Ishita Bindlish (1)
Kandarpa Kumar Sarma (1)
Preslav Nakov (1)
Jasabanta Patro (1)
Stephan Vogel (1)
Bharath A (1)
Prithwish Mukherjee (1)
Rikta Sen (1)
Md. Hanif Seddiqui (1)
M. R. Amin (1)
Abdul Rahiman M (1)
Soumen Chakrabarti (1)
Nayan Jyoti Kalita (1)
Simon King (1)
Abdul Hannan (1)
Shahjalal Ahmed (1)
Mimisha Nesan (1)
Kalyanee Kanchan Baruah (1)
Shamim Ripon (1)
Pranjal Das (1)
Comma seperated list of Authors (1)
Sanjay Saha (1)
Sree Harsha Ramesh (1)
M S Rajasree (1)
Tanvir Ahmad (1)
Bradley P. Lambeth Jr (1)
Tushar Patnaik (1)
M Abdul Rahiman (1)
Arijit Mukherjee (1)
T. V. Prasad (1)
Siddhartha Arora (1)
Chun Lei He (1)
Syed S. Akhtar (1)
S. Padmavathi (1)
Ameya Prabhu (1)
Shabbir Ahmad (1)
Mahmudul Hasan (1)
Asif Ekbal (1)
Mirzanur Rahman (1)
Sushma Yalamanchili (1)
Sreelekha S (1)
Mitesh M. Khapra (1)
Arnav Sharma (1)
Md. Ataur Rahman (1)
R SaidasS. (1)
Vishwajeet Kumar (1)
Shrikant Malviya (1)
Saurabh Singh (1)
N Masha (1)
Souvik Bhowmick (1)
Amba P. Kulkarni (1)
Nitigya Sambyal (1)
Md. Rafiqul Islam (1)
Dipti M. Sharma (1)
Ondřej Bojar (1)
Shruti Tyagi (1)
Juhi Ameta (1)
Vinay Singh (1)
Monojit Choudhury (1)
Piyush Bansal (1)
Bilkis Jamal Ferdosi (1)
Nikita Moghe (1)
Ahmad Musleh (1)
Abhipsa Basu (1)
Vineet Chaitanya (1)
Pawanesh Abrol (1)
Amir Sadeghi (1)
Sudeshna Sarkar (1)
Manojna K. S. S (1)
Paheli Bhattacharya (1)
Prasenjit Majumder (1)
Tark M. Taha (1)
S. V. A. V. Prasad (1)
R Meenakshi (1)
Andrea Corsi (1)
Arpita Das (1)
Vijayan K. Asari (1)
N. Mohammed (1)
Evan Askanazi (1)
Rajeev Sangal (1)
Ganesh Ramakrishnan (1)
Shubham Tripathi (1)
Minesh Mathew (1)
Raveesh Motlani (1)
Vaishali Sharma (1)
Md. Abul Kalam Azad (1)
Manish Srivastava (1)
Shikha Kabra (1)
Shikhar Kr. Sarma (1)
Ritika Agarwal (1)
S. M. Kamruzzaman (1)
Baharul Islam (1)
M Sasikumar (1)
U. Pal ; B.B. Chaudhuri (1)
Sreelekha. S (1)
Avirup Bhattacharyya (1)
Md Arshad Ali (1)
Malik Waqas Sagheer (1)
Madan Gopal Jhanwar (1)
Radhika Mamidi (1)
D. Meenakshy (1)
Lubna Khan (1)
Sandip Modha (1)
N.V. Neeba (1)
Akshar Bharati (1)
Ankit Kumar (1)
Ganji Sreeram (1)
Anoop Namboodiri (1)
Animesh Mukherjee (1)
More
C.V. Jawahar (4)
Sahil Swami (3)
Dipak Kumar Basu (3)
Nibaran Das (3)
Dipak kumar Basu (3)
Akash Mohta (3)
Kamal Sarkar (3)
Ankush Khandelwal (3)
Pushpak Bhattacharyya (3)
Subhadip Basu (3)
Mita Nasipuri (3)
Mahantapas Kundu (3)
Ram Sarkar (3)
Richa Sharma (2)
Prakash B. Pimpale (2)
Sabir Ismail (2)
Nurendra Choudhary (2)
Shweta Nigam (2)
Bidisha Samanta (2)
MD. Saiful Islam (2)
Raj Nath Patel (2)
B.B. Chaudhuri (2)
Mohd Zeeshan Ansari (2)
Syed Sarfaraz Akhtar (2)
Md. Saiful Islam (2)
Rajat Singh (2)
U. Pal (2)
Rekha Jain (2)
P.J. Narayanan (1)
Dipti Mishra Sharma (1)
Devendra Sachan (1)
A. K. A. Azad (1)
Minhaz Uddin Ahmed (1)
P. P. Aung (1)
Vasudeva Varma (1)
Pramod Pandey (1)
Shashi Pal Singh (1)
S.S. Ravi Kiran (1)
Dipaloke Saha (1)
M. Kameswara Rao (1)
Deepti Chopra (1)
Ching Y. Suen (1)
Pawan Goyal (1)
M Rema (1)
Md. Nawab Yousuf Ali (1)
John Everatt (1)
Atul Kr. Ojha (1)
Tasmin Afroz (1)
Srikanth Ronanki (1)
Kaustubh Bhattacharyya (1)
Rajmohan Pardeshi (1)
Lukáš Neumann (1)
Sakshi Gupta (1)
Manju Manuel (1)
Preethi Jyothi (1)
Shrey Dutta (1)
Uma Shanker Tiwary (1)
S. Madhvanath (1)
Md. Shopon (1)
Shantipriya Parida (1)
M.N.S.S.K. Pavan Kumar (1)
Rohit Mishra (1)
Srikanth Doddamani (1)
Neeraj Battan (1)
Md Zahangir Alom (1)
Ashis Kumar Mandal (1)
Suman Banerjee (1)
S. Sphoorthy Reddy (1)
Anirudh Dahiya (1)
Akanksha Gehlot (1)
Sufal Das (1)
Somnath Roy (1)
Md Saddam Hossain (1)
Raveena R Kumar (1)
Nitish Joshi (1)
Sagar S. Rane (1)
Rajasree M S (1)
Bajibabu Bollepalli (1)
Mohit Jain (1)
Irina Temnikova (1)
K. C. Santosh (1)
Shaikh Muhammad Allayear (1)
T.S. Naveen (1)
Vivek Kr Verma (1)
Priya Rani (1)
Aditya Joshi (1)
ARUN K. PUJARI (1)
Peheding Sidike (1)
Girish Nath Jha (1)
Jiří Matas (1)
Ajai Kumar (1)
Kamlesh Sharma (1)
Md. Fahad Hasan (1)
Jahid Hassan (1)
Deepak Gupta (1)
Suranjit SinhaUmapada PalB. B. Chaudhuri (1)
Mallikarjun Hangarge (1)
Nicola Nobile (1)
M.B. SUKHASWAMI (1)
Rohit Sinha (1)
A. Hassan (1)
Rezwana Sharmeen (1)
Niloy Ganguly (1)
Nadir Durrani (1)
Osama Alsaad (1)
Siva Reddy (1)
Utpal Sharma (1)
Purnendu Banerjee (1)
P. SEETHARAMULU (1)
G Manoj Kumar (1)
Satya Ranjan Dash (1)
Bidyut B. Chaudhuri (1)
Ishita Bindlish (1)
Kandarpa Kumar Sarma (1)
Preslav Nakov (1)
Jasabanta Patro (1)
Stephan Vogel (1)
Bharath A (1)
Prithwish Mukherjee (1)
Rikta Sen (1)
Md. Hanif Seddiqui (1)
M. R. Amin (1)
Abdul Rahiman M (1)
Soumen Chakrabarti (1)
Nayan Jyoti Kalita (1)
Simon King (1)
Abdul Hannan (1)
Shahjalal Ahmed (1)
Mimisha Nesan (1)
Kalyanee Kanchan Baruah (1)
Shamim Ripon (1)
Pranjal Das (1)
Comma seperated list of Authors (1)
Sanjay Saha (1)
Sree Harsha Ramesh (1)
M S Rajasree (1)
Tanvir Ahmad (1)
Bradley P. Lambeth Jr (1)
Tushar Patnaik (1)
M Abdul Rahiman (1)
Arijit Mukherjee (1)
T. V. Prasad (1)
Siddhartha Arora (1)
Chun Lei He (1)
Syed S. Akhtar (1)
S. Padmavathi (1)
Ameya Prabhu (1)
Shabbir Ahmad (1)
Mahmudul Hasan (1)
Asif Ekbal (1)
Mirzanur Rahman (1)
Sushma Yalamanchili (1)
Sreelekha S (1)
Mitesh M. Khapra (1)
Arnav Sharma (1)
Md. Ataur Rahman (1)
R SaidasS. (1)
Vishwajeet Kumar (1)
Shrikant Malviya (1)
Saurabh Singh (1)
N Masha (1)
Souvik Bhowmick (1)
Amba P. Kulkarni (1)
Nitigya Sambyal (1)
Md. Rafiqul Islam (1)
Dipti M. Sharma (1)
Ondřej Bojar (1)
Shruti Tyagi (1)
Juhi Ameta (1)
Vinay Singh (1)
Monojit Choudhury (1)
Piyush Bansal (1)
Bilkis Jamal Ferdosi (1)
Nikita Moghe (1)
Ahmad Musleh (1)
Abhipsa Basu (1)
Vineet Chaitanya (1)
Pawanesh Abrol (1)
Amir Sadeghi (1)
Sudeshna Sarkar (1)
Manojna K. S. S (1)
Paheli Bhattacharya (1)
Prasenjit Majumder (1)
Tark M. Taha (1)
S. V. A. V. Prasad (1)
R Meenakshi (1)
Andrea Corsi (1)
Arpita Das (1)
Vijayan K. Asari (1)
N. Mohammed (1)
Evan Askanazi (1)
Rajeev Sangal (1)
Ganesh Ramakrishnan (1)
Shubham Tripathi (1)
Minesh Mathew (1)
Raveesh Motlani (1)
Vaishali Sharma (1)
Md. Abul Kalam Azad (1)
Manish Srivastava (1)
Shikha Kabra (1)
Shikhar Kr. Sarma (1)
Ritika Agarwal (1)
S. M. Kamruzzaman (1)
Baharul Islam (1)
M Sasikumar (1)
U. Pal ; B.B. Chaudhuri (1)
Sreelekha. S (1)
Avirup Bhattacharyya (1)
Md Arshad Ali (1)
Malik Waqas Sagheer (1)
Madan Gopal Jhanwar (1)
Radhika Mamidi (1)
D. Meenakshy (1)
Lubna Khan (1)
Sandip Modha (1)
N.V. Neeba (1)
Akshar Bharati (1)
Ankit Kumar (1)
Ganji Sreeram (1)
Anoop Namboodiri (1)
Animesh Mukherjee (1)