Adjustable power supply filters for microcontrollers with consumption current masking
Main Article Content
Abstract
For copyright protection of software for microcontrollers, it is important for developer to know real information about the degree of their security against unauthorized reading. Known methods of unauthorized reading of information by consumption current, such as the simple power analysis and the differential power analysis, are simple to perform, have low cost, and are carried out without destruction of chips. Perspective way of protection against such reading is masking of consumption current. Authors offer to create such adjustable filter of consumption currentб which would bring hindrances in consumption current of the microcontroller. To define type of the noise generator, which is necessary for control of adjustable filter, and also noise frequency, coefficients of mutual correlation between consumption current without masking and with masking by means of adjustable filter, depending on type of the generator of noise and on its frequency are defined. On the basis of the generator of noise, four devices of filters of a microprocessor powering system with protection of consumption current are developed. Comparison of the offered filters against existing systems of protection is executed, and determined, that the offered consumption current filters have the best efficiency. Referenses 5, Figures 6, tables 1.
Article Details
This work is licensed under a Creative Commons Attribution 4.0 International License.
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).
References
P. Kocher, J. Jaffe, B. Jun. (1999), Differential Power Analysis. Crypto 99 Proceedings, Lecture Notes in Computer Science. M. Wiener, ed., Springer-Verlag. Vol.1666.
V.O.Bezhenar, A.V.Moroz, T.O.Tereshchenko. (2010), Digital protection system against power supply attacks. Electronics and communication. No. 2. Pp. 108-114. (Ukr)
V.O.Bezhenar, A.V.Moroz, T.O.Tereshchenko. Patent UA 43634 Ukraine, IPC G06F 1/00 (2006.01). Microprocessor system with protection against supply current reading; filed 25.03.2009 No.u200902780 published. 25.08.2009. (Ukr)
V.O.Bezhenar, A.V.Moroz, T.O.Tereshchenko. Patent UA 43673 Ukraine, IPC G06K 19/06 (2006.01). Microcontroller with a protection system against supply current attacks.; filed 03.04.2009 No.u200903207, published 25.08.2009. (Ukr)
