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318 results on '"Dahab, Ricardo"'

3. Fast White-Box Implementations of Dedicated Ciphers on the ARMv8 Architecture

Author

Rodrigues, Félix Carvalho, Fujii, Hayato, Zoppi Serpa, Ana Clara, Sider, Giuliano, Dahab, Ricardo, López, Julio, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Schwabe, Peter, editor, and Thériault, Nicolas, editor

Published
2019
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4. LWE-based Identification Schemes

Author

Silva, Rosemberg, Campello, Antonio, and Dahab, Ricardo

Subjects
Computer Science - Cryptography and Security, Computer Science - Information Theory
Abstract

Some hard problems from lattices, like LWE (Learning with Errors), are particularly suitable for application in Cryptography due to the possibility of using worst-case to average-case reductions as evidence of strong security properties. In this work, we show two LWE-based constructions of zero-knowledge identification schemes and discuss their performance and security. We also highlight the design choices that make our solution of both theoretical and practical interest., Comment: 5 pages. Presented at the 2012 Information Theory Workshop (ITW)

Published
2011

10. Assurance Cases as a Didactic Tool for Information Security

Author

Gallo, Roberto, Dahab, Ricardo, Rannenberg, Kai, Editor-in-chief, Sakarovitch, Jacques, Series editor, Goedicke, Michael, Series editor, Tatnall, Arthur, Series editor, Neuhold, Erich J., Series editor, Pras, Aiko, Series editor, Tröltzsch, Fredi, Series editor, Pries-Heje, Jan, Series editor, Whitehouse, Diane, Series editor, Reis, Ricardo, Series editor, Murayama, Yuko, Series editor, Dillon, Tharam, Series editor, Gulliksen, Jan, Series editor, Rauterberg, Matthias, Series editor, Bishop, Matt, editor, Miloslavskaya, Natalia, editor, and Theocharidou, Marianthi, editor

Published
2015
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11. Efficient and Secure Elliptic Curve Cryptography for 8-bit AVR Microcontrollers

Author

Nascimento, Erick, López, Julio, Dahab, Ricardo, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Chakraborty, Rajat Subhra, editor, Schwabe, Peter, editor, and Solworth, Jon, editor

Published
2015
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12. Adaptive Key Recovery Attacks on NTRU-Based Somewhat Homomorphic Encryption Schemes

Author

Dahab, Ricardo, Galbraith, Steven, Morais, Eduardo, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Lehmann, Anja, editor, and Wolf, Stefan, editor

Published
2015
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13. A Panorama of Post-quantum Cryptography

Author

Barreto, Paulo S. L. M., Piazza Biasi, Felipe, Dahab, Ricardo, López-Hernández, Julio César, de Morais, Eduardo M., de Oliveira, Ana D. Salina, Pereira, Geovandro C. C. F., Ricardini, Jefferson E., and Koç, Çetin Kaya, editor

Published
2014
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14. Detecting Cryptography Misuses With Machine Learning: Graph Embeddings, Transfer Learning and Data Augmentation in Source Code Related Tasks

Author

Rodrigues, Gustavo Eloi de Paula, Braga, Alexandre M., and Dahab, Ricardo

Abstract

Cryptography is a ubiquitous tool in secure software development in order to guarantee security requirements in general. However, software developers have scarce knowledge about cryptography and rely on limited support tools that cannot properly detect bad uses of cryptography, thus generating vulnerabilities in software. In this work, we extend the scarcely use of machine learning to detect cryptography misuse in source code by using a state of the art deep learning model (i.e., code2vec) through transfer learning to generate features that feed machine learning models. In addition, we compare this approach to previous ones in different types of binary models. Also, we adapt code obfuscation to serve as data augmentation in machine learning source code related tasks. Finally, we show that through transfer learning code2vec can be a competitive feature generator for cryptography misuse detection and simple code obfuscation can be used to generate data to enhance machine learning models training in source code related tasks.

Published
2023
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15. Fast Software Polynomial Multiplication on ARM Processors Using the NEON Engine

Author

Câmara, Danilo, Gouvêa, Conrado P. L., López, Julio, Dahab, Ricardo, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Cuzzocrea, Alfredo, editor, Kittl, Christian, editor, Simos, Dimitris E., editor, Weippl, Edgar, editor, and Xu, Lida, editor

Published
2013
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18. On Device Identity Establishment and Verification

Author

Gallo, Roberto, Kawakami, Henrique, Dahab, Ricardo, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Martinelli, Fabio, editor, and Preneel, Bart, editor

Published
2010
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19. NanoECC: Testing the Limits of Elliptic Curve Cryptography in Sensor Networks

Author

Szczechowiak, Piotr, Oliveira, Leonardo B., Scott, Michael, Collier, Martin, Dahab, Ricardo, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, and Verdone, Roberto, editor

Published
2008
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20. Implementing Cryptographic Pairings over Barreto-Naehrig Curves

Author

Devegili, Augusto Jun, Scott, Michael, Dahab, Ricardo, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Takagi, Tsuyoshi, editor, Okamoto, Tatsuaki, editor, Okamoto, Eiji, editor, and Okamoto, Takeshi, editor

Published
2007
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21. Two Notes on the Security of Certificateless Signatures

Author

Castro, Rafael, Dahab, Ricardo, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Susilo, Willy, editor, Liu, Joseph K., editor, and Mu, Yi, editor

Published
2007
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22. Optimistic Blinded-Key Signatures for ElGamal and Related Schemes

Author

Ferreira, Lucas C., Dahab, Ricardo, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Karmouch, Ahmed, editor, Korba, Larry, editor, and Madeira, Edmundo R. M., editor

Published
2004
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34. A Custom Instruction Approach for Hardware and Software Implementations of Finite Field Arithmetic over \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mathbb{F}_{{2^{{163}} }} $$\end{document} using Gaussian Normal Bases

Author

Juliato, Marcio, Araujo, Guido, López, Julio, and Dahab, Ricardo

Published
2007
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35. Introdução à criptografia pós-quântica

Author

Barreto, Paulo, primary, Biasi, Felipe, additional, Dahab, Ricardo, additional, López-Hérnandez, Julio, additional, Morais, Eduardo, additional, Oliveira, Ana, additional, Pereira, Geovandro, additional, and Ricardini, Jefferson, additional

Published
2013
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38. Software multiplication using Gaussian normal bases

Author

Dahab, Ricardo, Hankerson, Darrel, Fei Hu, Long, Men, Lopez, Julio, and Menezes, Alfred

Subjects
Storage capacity, Gaussian distribution -- Analysis, Cryptography -- Methods, Curves, Elliptic -- Analysis, Ellipse -- Analysis, Memory compaction -- Methods, Memory management -- Methods, Memory mapping -- Methods, Memory partitioning -- Methods, Memory protection -- Methods, Memory refresh (Computers) -- Methods
Published
2006

49. Public-Key Cryptography – PKC 2018: 21st IACR International Conference on Practice and Theory of Public-Key Cryptography, Proceedings, Part II

Author

Abdalla, Michel, Dahab, Ricardo, Laboratoire d'informatique de l'école normale supérieure (LIENS), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL), Construction and Analysis of Systems for Confidentiality and Authenticity of Data and Entities (CASCADE), Inria de Paris, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-Département d'informatique de l'École normale supérieure (DI-ENS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), University of Campinas [Campinas] (UNICAMP), Michel Abdalla, Ricardo Dahab, Département d'informatique - ENS Paris (DI-ENS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche en Informatique et en Automatique (Inria)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche en Informatique et en Automatique (Inria)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Inria de Paris, Institut National de Recherche en Informatique et en Automatique (Inria), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Inria de Paris, and Universidade Estadual de Campinas = University of Campinas (UNICAMP)

Subjects
[INFO.INFO-CR]Computer Science [cs]/Cryptography and Security [cs.CR], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2018

50. SOFIA: MQ-based signatures in the QROM

Author

Chen, Ming Shing, Hülsing, Andreas, Rijneveld, Joost, Samardjiska, Simona, Schwabe, Peter, Abdalla, Michel, Dahab, Ricardo, Discrete Mathematics, Center for Quantum Materials and Technology Eindhoven, and Coding Theory and Cryptology

Subjects
QROM, Unruh's transform, Post-quantum cryptography, Unruh’s transform, Vectorized implementation, 5-pass identification schemes, Multivariate cryptography
Abstract

We propose SOFIA, the first MQ -based signature scheme provably secure in the quantum-accessible random oracle model (QROM). Our construction relies on an extended version of Unruh’s transform for 5-pass identification schemes that we describe and prove secure both in the ROM and QROM. Based on a detailed security analysis, we provide concrete parameters for SOFIA that achieve 128-bit post-quantum security. The result is SOFIA-4-128 with parameters carefully optimized to minimize signature size and maximize performance. SOFIA-4-128 comes with an implementation targeting recent Intel processors with the AVX2 vector-instruction set; the implementation is fully protected against timing attacks.

Published
2018

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