Physical Layer Wireless Security Made Fast and Channel Independent
There is a growing interest in physical layer security. Recent work has demonstrated that wireless devices can generate a shared secret key by exploiting variations in their channel. The rate at which the secret bits are generated, however, depends heavily on how fast the channel changes. As a resul...
| Main Authors: | , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
Institute of Electrical and Electronics Engineers (IEEE)
2012
|
| Online Access: | http://hdl.handle.net/1721.1/72996 https://orcid.org/0000-0003-4854-4157 |
| _version_ | 1826204824556797952 |
|---|---|
| author | Gollakota, Shyamnath Katabi, Dina |
| author2 | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science |
| author_facet | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Gollakota, Shyamnath Katabi, Dina |
| author_sort | Gollakota, Shyamnath |
| collection | MIT |
| description | There is a growing interest in physical layer security. Recent work has demonstrated that wireless devices can generate a shared secret key by exploiting variations in their channel. The rate at which the secret bits are generated, however, depends heavily on how fast the channel changes. As a result, existing schemes have a low secrecy rate and are mainly applicable to mobile environments. In contrast, this paper presents a new physical-layer approach to secret key generation that is both fast and independent of channel variations. Our approach makes a receiver jam the signal in a manner that still allows it to decode the data, yet prevents other nodes from decoding. Results from a testbed implementation show that our method is significantly faster and more accurate than state of the art physical-layer secret key generation protocols. Specifically, while past work generates up to 44 secret bits/s with a 4% bit disagreement between the two devices, our design has a secrecy rate of 3-18 Kb/s with 0% bit disagreement. |
| first_indexed | 2024-09-23T13:01:40Z |
| format | Article |
| id | mit-1721.1/72996 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:01:40Z |
| publishDate | 2012 |
| publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| record_format | dspace |
| spelling | mit-1721.1/729962022-10-01T12:37:44Z Physical Layer Wireless Security Made Fast and Channel Independent Gollakota, Shyamnath Katabi, Dina Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Katabi, Dina Gollakota, Shyamnath Katabi, Dina There is a growing interest in physical layer security. Recent work has demonstrated that wireless devices can generate a shared secret key by exploiting variations in their channel. The rate at which the secret bits are generated, however, depends heavily on how fast the channel changes. As a result, existing schemes have a low secrecy rate and are mainly applicable to mobile environments. In contrast, this paper presents a new physical-layer approach to secret key generation that is both fast and independent of channel variations. Our approach makes a receiver jam the signal in a manner that still allows it to decode the data, yet prevents other nodes from decoding. Results from a testbed implementation show that our method is significantly faster and more accurate than state of the art physical-layer secret key generation protocols. Specifically, while past work generates up to 44 secret bits/s with a 4% bit disagreement between the two devices, our design has a secrecy rate of 3-18 Kb/s with 0% bit disagreement. 2012-09-17T15:54:21Z 2012-09-17T15:54:21Z 2011-06 2011-04 Article http://purl.org/eprint/type/ConferencePaper 978-1-4244-9919-9 0743-166X http://hdl.handle.net/1721.1/72996 Gollakota, Shyamnath, and Dina Katabi. “Physical Layer Wireless Security Made Fast and Channel Independent.” Proceedings IEEE INFOCOM, 2011. 1125–1133. https://orcid.org/0000-0003-4854-4157 en_US http://dx.doi.org/10.1109/INFCOM.2011.5934889 Proceedings IEEE INFOCOM, 2011 Creative Commons Attribution-Noncommercial-Share Alike 3.0 http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf Institute of Electrical and Electronics Engineers (IEEE) MIT web domain |
| spellingShingle | Gollakota, Shyamnath Katabi, Dina Physical Layer Wireless Security Made Fast and Channel Independent |
| title | Physical Layer Wireless Security Made Fast and Channel Independent |
| title_full | Physical Layer Wireless Security Made Fast and Channel Independent |
| title_fullStr | Physical Layer Wireless Security Made Fast and Channel Independent |
| title_full_unstemmed | Physical Layer Wireless Security Made Fast and Channel Independent |
| title_short | Physical Layer Wireless Security Made Fast and Channel Independent |
| title_sort | physical layer wireless security made fast and channel independent |
| url | http://hdl.handle.net/1721.1/72996 https://orcid.org/0000-0003-4854-4157 |
| work_keys_str_mv | AT gollakotashyamnath physicallayerwirelesssecuritymadefastandchannelindependent AT katabidina physicallayerwirelesssecuritymadefastandchannelindependent |