Title:
Hello, Are You Human?
Hello, Are You Human?
| dc.contributor.author | Essa, Irfan | |
| dc.contributor.author | Lipton, Richard J. | |
| dc.contributor.author | Xu, Jun | en_US |
| dc.date.accessioned | 2005-06-17T17:45:58Z | |
| dc.date.available | 2005-06-17T17:45:58Z | |
| dc.date.issued | 2000 | en_US |
| dc.description.abstract | In this paper, we propose the concept of a humanizer and explore its applications in network security and E-commerce. A humanizer is a novel authentication scheme that asks the question "are you human?" (instead of "who are you?"), and upon the correct answer to this question, can prove a principal to be a human being instead of a computer program. We demonstrate that the humanizer helps solve problems in network security and E-commerce that existing security measures can not address properly. A key component of this "are you human?" authentication process is a new type of trapdoor one-way hash function, called Turing-resistant hashing. It transforms a character string (the preimage) into a graphical form (the image) in such a way that a human being won't have any problem recovering the preimage through the trapdoor of human pattern recognition skills, while a computer program, essentially a Turing machine, will not be able to decode it or make a correct guess of the preimage with non-negligible probability. Based on this hash function, we design a stateless generic humanizer that can be parameterized for use in various real-world applications. | en_US |
| dc.format.extent | 198777 bytes | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.uri | http://hdl.handle.net/1853/6594 | |
| dc.language.iso | en_US | |
| dc.publisher | Georgia Institute of Technology | en_US |
| dc.relation.ispartofseries | CC Technical Report; GIT-CC-00-28 | en_US |
| dc.subject | Internet security | |
| dc.subject | Humanizer | |
| dc.subject | Authentication | |
| dc.subject | Hashing-based schemes | |
| dc.subject | Turing machines | |
| dc.title | Hello, Are You Human? | en_US |
| dc.type | Text | |
| dc.type.genre | Technical Report | |
| dspace.entity.type | Publication | |
| local.contributor.author | Essa, Irfan | |
| local.contributor.corporatename | College of Computing | |
| local.relation.ispartofseries | College of Computing Technical Report Series | |
| relation.isAuthorOfPublication | 84ae0044-6f5b-4733-8388-4f6427a0f817 | |
| relation.isOrgUnitOfPublication | c8892b3c-8db6-4b7b-a33a-1b67f7db2021 | |
| relation.isSeriesOfPublication | 35c9e8fc-dd67-4201-b1d5-016381ef65b8 |
Files
Original bundle
1 - 1 of 1