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Your search keyword '"Jedlička, Petr"' showing total 22 results
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22 results on '"Jedlička, Petr"'

1. Pushing AES-256-GCM to Limits: Design, Implementation and Real FPGA Tests

Author

Cibik, Peter, Dobias, Patrik, Ricci, Sara, Hajny, Jan, Malina, Lukas, Jedlicka, Petr, Smekal, David, Goos, Gerhard, Series Editor, Hartmanis, Juris, Founding Editor, van Leeuwen, Jan, Series Editor, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Kobsa, Alfred, Series Editor, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Nierstrasz, Oscar, Series Editor, Pandu Rangan, C., Editorial Board Member, Sudan, Madhu, Series Editor, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Weikum, Gerhard, Series Editor, Vardi, Moshe Y, Series Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, and Andreoni, Martin, editor

Published
2024
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2. Tilt angle measurement with a Gaussian-shaped laser beam tracking

Author

Šarbort, Martin, Řeřucha, Šimon, Jedlička, Petr, Lazar, Josef, and Číp, Ondrej

Subjects
Physics - Instrumentation and Detectors, Physics - Applied Physics, Physics - Optics
Abstract

We have addressed the challenge to carry out the angular tilt stabilization of a laser guiding mirror which is intended to route a laser beam with a high energy density. Such an application requires good angular accuracy as well as large operating range, long term stability and absolute positioning. We have designed an instrument for such a high precision angular tilt measurement based on a triangulation method where a laser beam with Gaussian profile is reflected off the stabilized mirror and detected by an image sensor. As the angular deflection of the mirror causes a change of the beam spot position, the principal task is to measure the position on the image chip surface. We have employed a numerical analysis of the Gaussian intensity pattern which uses the nonlinear regression algorithm. The feasibility and performance of the method were tested by numeric modeling as well as experimentally. The experimental results indicate that the assembled instrument achieves a measurement error of 0.13 microradian in the range +-0.65 degrees over the period of one hour. This corresponds to the dynamic range of 1:170 000., Comment: 7 pages, 4 figures; SPIE Photonics Europe, 2014, Brussels, Belgium

Published
2022
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3. Hybrid Keys in Practice: Combining Classical, Quantum and Post-Quantum Cryptography

Author

Ricci, Sara, Dobiáš, Patrik, Malina, Lukáš, Hajný, Jan, Jedlička, Petr, Ricci, Sara, Dobiáš, Patrik, Malina, Lukáš, Hajný, Jan, and Jedlička, Petr

Abstract

Currently, with the threat of quantum computer attacks, the idea of combining several same-type primitives has reemerged. This is also the case for cryptographic keys where a hybrid quantum key exchange combination allows for preserving the security guarantees of pre-quantum schemes and achieving quantum resistance of post-quantum schemes. In this article, we present a concrete 3-key combiner system implemented on a Field Programmable Gate Arrays (FPGA) platform. Our system involves a pre-quantum Key EXchange scheme (KEX), a post-quantum key encapsulation mechanism, and a Quantum Key Distribution (QKD) algorithm. The proposed 3-key combiner is proven to be secure in the quantum standard model and it is INDistinguishable under a Chosen-Ciphertext Attack (IND-CCA). Our combiner can run in small FPGA platforms due to its relatively low resources usage. In particular, the key combiner without QKD is able to output up to 1 624 keys per second and the key combiner with QKD is able to output up to 9.2 keys per second.

Published
2024

6. Riziko nepojištěných hospitalizací.

Author

Jedlička, Petr

Abstract

Copyright of Insurance Horizon / Pojistný Obzor is the property of Czech Insurance Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2024

7. Compact vacuum setup for 27Al+ and 40Ca+ ion trapping

Author

Grim, Jakub, primary, Vlček, Ivan, additional, Jedlička, Petr, additional, Pham, Minh T., additional, Lešundák, Adam, additional, Řeřucha, Šimon, additional, Čížek, Martin, additional, Artem, Kovalenko, additional, Lukáš, Slodička, additional, and Číp, Ondřej, additional

Published
2022
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8. Povinné ručení zůstává pod tlakem vysoké škodní inflace.

Author

Jedlička, Petr

Abstract

Copyright of Insurance Horizon / Pojistný Obzor is the property of Czech Insurance Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2023

11. Hlásit, či nehlásit nehodu policii? Analýza možnosti navýšení limitu hlášení výše škody.

Author

Jedlička, Petr

Abstract

Copyright of Insurance Horizon / Pojistný Obzor is the property of Czech Insurance Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2023

12. Škodní inflace se zvyšuje. Nejen kvůli ekonomické situaci.

Author

Jedlička, Petr

Abstract

Copyright of Insurance Horizon / Pojistný Obzor is the property of Czech Insurance Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2022

17. Domácnosti vloni přišly o půl miliardy: Odhad dopadů nepojištěných událostí z pojištění českých domácností.

Author

Jedlička, Petr

Abstract

Copyright of Insurance Horizon / Pojistný Obzor is the property of Czech Insurance Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2024

18. 25 let škod z přírodních katastrof.

Author

Jedlička, Petr

Abstract

Copyright of Insurance Horizon / Pojistný Obzor is the property of Czech Insurance Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2022

19. Požáry v Česku: Až 1,2 mld. Kč nepojištěných škod v roce 2021.

Author

Jedlička, Petr

Abstract

Copyright of Insurance Horizon / Pojistný Obzor is the property of Czech Insurance Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2023

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