WPA/WPA2 Password Security Testing using Graphics Processing Units
Keywords:WLAN, IEEE 802.11, WPA/WPA2, PSK, GPU, CUDA, PYRIT
This thesis focuses on the testing of WPA/WPA 2 password strength. Recently, due to progress in calculation power and technology, new factors must be taken into account when choosing a WPA/WPA2 secure password. A study regarding the security of the current deployed password is reported here.
Harnessing the computational power of a single and old generation GPU (NVIDIA 610M released in December 2011), we have accelerated the process of recovering a password up to 3 times faster than in the case of using only our CPUs power.
We have come to the conclusion that using a modern GPU (mid-end class), the password recovery time could be reduced up to 10 times or even much more faster when using a more elaborate solution such as a GPU cluster service/distributed work between multiple GPUs. This fact should raise an alarm signal to the community as to the way users pick their passwords, as passwords are becoming more and more unsecure as greater calculation power becomes available.
Charlene Chow Ying Kwong, “An Empirical Approach of Wireless Forensics”, Department of Computer and System Sciences Stockholm University, 2009
N. Tomai, “Particularities of security design for wireless networks in small and medium business (SMB)”, Informatica Economica, vol. 44, no. 11, pp. 93-98, 2007
Marc Shober, “Efficient Password and Key recovery using Graphic Cards”, Ruhr-Universitat Bochum, 2010
Thomas Roth,“Breaking encryptions using GPU accelerated cloud instances”, in BlackHat Conference, Conf., 2011 [Online] Available: https://media.blackhat.com/bh-dc-11/Roth/BlackHat_DC_2011_Roth_Breaking_encryptions-wp.pdf
David B. Kirk,Wen-mei W. Hwu, Programming Massively Parallel Processors, Elsevier Inc, 2010
LastBit Corp, Password Calculator, [Online] Available: http://lastbit.com/pswcalc.asp
Pyrit project, [Online] Available: http://code.google.com/p/pyrit/
How to Cite
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
- The author(s) is responsible for the correctness and legality of the paper content.
- Papers that are copyrighted or published will not be taken into consideration for publication in JMEDS It is the author(s) responsibility to ensure that the paper does not cause any copyright infringements and other problems.
- It is the responsibility of the author(s) to obtain all necessary copyright release permissions for the use of any copyrighted materials in the paper prior to the submission.
- The Author(s) retains the right to reuse any portion of the paper, in future works, including books, lectures and presentations in all media, with the condition that the publication by JMEDS is properly credited and referenced.
JMEDS articles by Journal of Mobile, Embedded and Distributed Systems (JMEDS) is licensed under a Creative Commons Attribution 4.0 International License.
Based on a work at http://jmeds.eu.
Permissions beyond the scope of this license may be available at http://jmeds.eu/index.php/jmeds/about/submissions#copyrightNotice.