Nicolas T. Courtois

127 papers A* 8A 4B 6C 14Misc 8Journal 69Unranked 16

Year	Rank	Type	Title / Venue / Authors
2024	J	`jnl`	On Maximum Size Simultaneous Linear Approximations in Ascon and Keccak and Related Translation and Differential Properties. IACR Cryptol. ePrint Arch. Nicolas T. Courtois, Frédéric Amiel, Alexandre Bonnard de Fonvillars
2022	J	`jnl`	On latin squares, invariant differentials, random permutations and historical Enigma rotors. Cryptologia Nicolas T. Courtois, Marek Grajek
2021	J	`jnl`	A nonlinear invariant attack on T-310 with the original Boolean function. Cryptologia Nicolas T. Courtois
2021	J	`jnl`	Crypto Currency Regulation and Law Enforcement Perspectives. CoRR Nicolas T. Courtois, Kacper T. Gradon, Klaus Schmeh
2021	J	`jnl`	On Closed-Cycle Loops and Applicability of Nonlinear Product Attacks to DES. IACR Cryptol. ePrint Arch. Nicolas T. Courtois, Matteo Abbondati, Hamy Ratoanina, Marek Grajek
2020	Misc	`conf`	Can a Differential Attack Work for an Arbitrarily Large Number of Rounds? ICISC Nicolas T. Courtois, Jean-Jacques Quisquater
2020	J	`jnl`	Construction of a polynomial invariant annihilation attack of degree 7 for T-310. Cryptologia Nicolas T. Courtois, Aidan Patrick, Matteo Abbondati
2020	J	`jnl`	Invariant Hopping Attacks on Block Ciphers. CoRR Nicolas T. Courtois
2020	J	`jnl`	Variable elimination strategies and construction of nonlinear polynomial invariant attacks on T-310. Cryptologia Nicolas T. Courtois, Marios Georgiou
2019	J	`jnl`	Constructive Non-Linear Polynomial Cryptanalysis of a Historical Block Cipher. CoRR Nicolas T. Courtois, Marios Georgiou
2019	J	`jnl`	Distributed Ledger Privacy: Ring Signatures, Möbius and CryptoNote. CoRR Christopher D. Clack, Nicolas T. Courtois
2019	J	`jnl`	Lack of Unique Factorization as a Tool in Block Cipher Cryptanalysis. CoRR Nicolas T. Courtois, Aidan Patrick
2019	J	`jnl`	Linear cryptanalysis and block cipher design in East Germany in the 1970s. Cryptologia Nicolas T. Courtois, Maria-Bristena Oprisanu, Klaus Schmeh
2019	J	`jnl`	Slide attacks and LC-weak keys in T-310. Cryptologia Nicolas T. Courtois, Marios Georgiou, Matteo Scarlata
2019	Misc	`conf`	Systematic Construction of Nonlinear Product Attacks on Block Ciphers. ICISC Nicolas T. Courtois, Matteo Abbondati, Hamy Ratoanina, Marek Grajek
2018	J	`jnl`	Ciphertext-only attacks and weak long-term keys in T-310. Cryptologia Nicolas T. Courtois, Maria-Bristena Oprisanu
2018	J	`jnl`	Decryption oracle slide attacks on T-310. Cryptologia Nicolas T. Courtois
2018	J	`jnl`	Feistel ciphers in East Germany in the communist era. Cryptologia Nicolas T. Courtois, Jörg Drobick, Klaus Schmeh
2018	J	`jnl`	On the Existence of Non-Linear Invariants and Algebraic Polynomial Constructive Approach to Backdoors in Block Ciphers. IACR Cryptol. ePrint Arch. Nicolas T. Courtois
2018	J	`jnl`	Structural Nonlinear Invariant Attacks on T-310: Attacking Arbitrary Boolean Functions. IACR Cryptol. ePrint Arch. Nicolas T. Courtois
2018	B	`conf`	The Evolution of Embedding Metadata in Blockchain Transactions. IJCNN Tooba Faisal, Nicolas T. Courtois, Antoaneta Serguieva
2018	J	`jnl`	The Evolution of Embedding Metadata in Blockchain Transactions. CoRR Tooba Faisal, Nicolas T. Courtois, Antoaneta Serguieva
2017	J	`jnl`	Cryptographic Security Analysis of T-310. IACR Cryptol. ePrint Arch. Nicolas T. Courtois, Klaus Schmeh, Jörg Drobick, Jacques Patarin, Maria-Bristena Oprisanu, Matteo Scarlata, Om Bhallamudi
2017	—	`conf`	On Feasibility and Performance of Rowhammmer Attack. ASHES@CCS Varnavas Papaioannou, Nicolas T. Courtois
2017	C	`conf`	Stealth Address and Key Management Techniques in Blockchain Systems. ICISSP Nicolas T. Courtois, Rebekah Mercer
2016	—	`conf`	An Improved Differential Attack on Full GOST. The New Codebreakers Nicolas T. Courtois
2016	J	`jnl`	High Saturation Complete Graph Approach for EC Point Decomposition and ECDL Problem. IACR Cryptol. ePrint Arch. Nicolas T. Courtois
2016	J	`jnl`	On Splitting a Point with Summation Polynomials in Binary Elliptic Curves. IACR Cryptol. ePrint Arch. Nicolas T. Courtois
2016	J	`jnl`	On selection of samples in algebraic attacks and a new technique to find hidden low degree equations. Int. J. Inf. Sec. Petr Susil, Pouyan Sepehrdad, Serge Vaudenay, Nicolas T. Courtois
2016	C	`conf`	Predicting Outcomes of ElimLin Attack on Lightweight Block Cipher Simon. SECRYPT Nicolas T. Courtois, Pouyan Sepehrdad, Guangyan Song, Iason Papapanagiotakis-Bousy
2016	J	`jnl`	Speed Optimizations in Bitcoin Key Recovery Attacks. IACR Cryptol. ePrint Arch. Nicolas T. Courtois, Guangyan Song, Ryan Castellucci
2016	—	`conf`	Two Philosophies for Solving Non-linear Equations in Algebraic Cryptanalysis. Mycrypt Nicolas T. Courtois
2015	J	`jnl`	Advanced Differential Cryptanalysis of Reduced-Round SIMON64/128 Using Large-Round Statistical Distinguishers. IACR Cryptol. ePrint Arch. Theodosis Mourouzis, Guangyan Song, Nicolas T. Courtois, Michalis Christofi
2015	J	`jnl`	Can GOST Be Made Secure Against Differential Cryptanalysis? Cryptologia Nicolas T. Courtois, Theodosis Mourouzis, Michal Misztal, Jean-Jacques Quisquater, Guangyan Song
2015	C	`conf`	On Detection of Bitcoin Mining Redirection Attacks. ICISSP Nicolas T. Courtois, Pinar Emirdag, Zhouyixing Wang
2015	J	`jnl`	On Multiple Symmetric Fixed Points in GOST. Cryptologia Nicolas T. Courtois
2014	C	`conf`	Combined Algebraic and Truncated Differential Cryptanalysis on Reduced-round Simon. SECRYPT Nicolas T. Courtois, Theodosis Mourouzis, Guangyan Song, Pouyan Sepehrdad, Petr Susil
2014	C	`conf`	Could Bitcoin Transactions Be 100x Faster?. SECRYPT Nicolas T. Courtois, Pinar Emirdag, Daniel A. Nagy
2014	J	`jnl`	Cryptanalysis of Two GOST Variants with 128-Bit Keys. Cryptologia Nicolas T. Courtois
2014	J	`jnl`	On Subversive Miner Strategies and Block Withholding Attack in Bitcoin Digital Currency. CoRR Nicolas T. Courtois, Lear Bahack
2014	J	`jnl`	On The Longest Chain Rule and Programmed Self-Destruction of Crypto Currencies. CoRR Nicolas T. Courtois
2014	—	`conf`	Optimizing SHA256 in Bitcoin Mining. CSS Nicolas T. Courtois, Marek Grajek, Rahul Naik
2014	J	`jnl`	Private Key Recovery Combination Attacks: On Extreme Fragility of Popular Bitcoin Key Management, Wallet and Cold Storage Solutions in Presence of Poor RNG Events. IACR Cryptol. ePrint Arch. Nicolas T. Courtois, Pinar Emirdag, Filippo Valsorda
2013	J	`jnl`	Cryptanalysis of Grigoriev-Shpilrain Physical Asymmetric Scheme With Capacitors. IACR Cryptol. ePrint Arch. Nicolas T. Courtois
2013	C	`conf`	Enhanced Truncated Differential Cryptanalysis of GOST. SECRYPT Nicolas T. Courtois, Theodosis Mourouzis, Michal Misztal
2013	J	`jnl`	Low-Complexity Key Recovery Attacks on GOST Block Cipher. Cryptologia Nicolas T. Courtois
2013	—	`conf`	On Bad Randomness and Cloning of Contactless Payment and Building Smart Cards. IEEE Symposium on Security and Privacy Workshops Nicolas T. Courtois, Daniel Hulme, Kumail Hussain, Jerzy A. Gawinecki, Marek Grajek
2013	J	`jnl`	The Unreasonable Fundamental Incertitudes Behind Bitcoin Mining. CoRR Nicolas T. Courtois, Marek Grajek, Rahul Naik
2012	J	`jnl`	Aggregated differentials and cryptanalysis of PP-1 and gost. Period. Math. Hung. Nicolas T. Courtois, Michal Misztal
2012	J	`jnl`	An Improved Differential Attack on Full GOST. IACR Cryptol. ePrint Arch. Nicolas T. Courtois
2012	A*	`conf`	ElimLin Algorithm Revisited. FSE Nicolas T. Courtois, Pouyan Sepehrdad, Petr Susil, Serge Vaudenay
2012	C	`conf`	Extension of de Weger's Attack on RSA with Large Public Keys. SECRYPT Nicolas T. Courtois, Theodosis Mourouzis, Pho V. Le
2012	—	`conf`	Random Permutation Statistics and an Improved Slide-Determine Attack on KeeLoq. Cryptography and Security Nicolas T. Courtois, Gregory V. Bard
2012	J	`jnl`	Security Evaluation of GOST 28147-89 in View of International Standardisation. Cryptologia Nicolas T. Courtois
2012	—	`conf`	Self-similarity Attacks on Block Ciphers and Application to KeeLoq. Cryptography and Security Nicolas T. Courtois
2012	J	`jnl`	Statistics of Random Permutations and the Cryptanalysis of Periodic Block Ciphers. Cryptologia Gregory V. Bard, Shaun Van Ault, Nicolas T. Courtois
2011	J	`jnl`	A New General-Purpose Method to Multiply 3x3 Matrices Using Only 23 Multiplications CoRR Nicolas T. Courtois, Gregory V. Bard, Daniel Hulme
2011	J	`jnl`	Algebraic Complexity Reduction and Cryptanalysis of GOST. IACR Cryptol. ePrint Arch. Nicolas T. Courtois
2011	C	`conf`	Black-box Collision Attacks on the Compression Function of the GOST Hash Function. SECRYPT Nicolas T. Courtois, Theodosis Mourouzis
2011	J	`jnl`	Differential Cryptanalysis of GOST. IACR Cryptol. ePrint Arch. Nicolas T. Courtois, Michal Misztal
2011	C	`conf`	First Differential Attack on Full 32-Round GOST. ICICS Nicolas T. Courtois, Michal Misztal
2011	B	`conf`	Make mine a quadruple: Strengthening the security of graphical one-time PIN authentication. NSS Ravi Jhawar, Philip Inglesant, Nicolas T. Courtois, Martina Angela Sasse
2011	J	`jnl`	Security Evaluation of GOST 28147-89 In View Of International Standardisation. IACR Cryptol. ePrint Arch. Nicolas T. Courtois
2011	J	`jnl`	Solving Circuit Optimisation Problems in Cryptography and Cryptanalysis. IACR Cryptol. ePrint Arch. Nicolas T. Courtois, Daniel Hulme, Theodosis Mourouzis
2010	Misc	`conf`	Algebraic, AIDA/Cube and Side Channel Analysis of KATAN Family of Block Ciphers. INDOCRYPT Gregory V. Bard, Nicolas T. Courtois, Jorge Nakahara Jr., Pouyan Sepehrdad, Bingsheng Zhang
2009	C	`conf`	Practical Algebraic Attacks on the Hitag2 Stream Cipher. ISC Nicolas T. Courtois, Sean O'Neil, Jean-Jacques Quisquater
2009	J	`jnl`	Statistics of Random Permutations and the Cryptanalysis of Periodic Block Ciphers. IACR Cryptol. ePrint Arch. Nicolas T. Courtois, Gregory V. Bard, Shaun Van Ault
2009	C	`conf`	The Dark Side of Security by Obscurity - and Cloning MiFare Classic Rail and Building Passes, Anywhere, Anytime. SECRYPT Nicolas T. Courtois
2009	J	`jnl`	The Dark Side of Security by Obscurity and Cloning MiFare Classic Rail and Building Passes Anywhere, Anytime. IACR Cryptol. ePrint Arch. Nicolas T. Courtois
2008	J	`jnl`	Algebraic Attacks on the Crypto-1 Stream Cipher in MiFare Classic and Oyster Cards. IACR Cryptol. ePrint Arch. Nicolas T. Courtois, Karsten Nohl, Sean O'Neil
2008	C	`conf`	Algebraic Description and Simultaneous Linear Approximations of Addition in Snow 2.0.. ICICS Nicolas T. Courtois, Blandine Debraize
2008	A*	`conf`	Algebraic and Slide Attacks on KeeLoq. FSE Nicolas T. Courtois, Gregory V. Bard, David A. Wagner
2008	—	`ch.`	Decimv2. The eSTREAM Finalists Côme Berbain, Olivier Billet, Anne Canteaut, Nicolas T. Courtois, Blandine Debraize, Henri Gilbert, Louis Goubin, Aline Gouget, Louis Granboulan, Cédric Lauradoux, Marine Minier, Thomas Pornin, Hervé Sibert
2008	J	`jnl`	SOSEMANUK: a fast software-oriented stream cipher CoRR Côme Berbain, Olivier Billet, Anne Canteaut, Nicolas T. Courtois, Henri Gilbert, Louis Goubin, Aline Gouget, Louis Granboulan, Cédric Lauradoux, Marine Minier, Thomas Pornin, Hervé Sibert
2008	—	`ch.`	Sosemanuk, a Fast Software-Oriented Stream Cipher. The eSTREAM Finalists Côme Berbain, Olivier Billet, Anne Canteaut, Nicolas T. Courtois, Henri Gilbert, Louis Goubin, Aline Gouget, Louis Granboulan, Cédric Lauradoux, Marine Minier, Thomas Pornin, Hervé Sibert
2007	C	`conf`	Algebraic Cryptanalysis of the Data Encryption Standard. IMACC Nicolas T. Courtois, Gregory V. Bard
2007	J	`jnl`	Algebraic and Slide Attacks on KeeLoq. IACR Cryptol. ePrint Arch. Nicolas T. Courtois, Gregory V. Bard, David A. Wagner
2007	J	`jnl`	CTC2 and Fast Algebraic Attacks on Block Ciphers Revisited. IACR Cryptol. ePrint Arch. Nicolas T. Courtois
2007	J	`jnl`	Efficient Methods for Conversion and Solution of Sparse Systems of Low-Degree Multivariate Polynomials over GF(2) via SAT-Solvers. IACR Cryptol. ePrint Arch. Gregory V. Bard, Nicolas T. Courtois, Chris Jefferson
2007	—	`conf`	How Fast can be Algebraic Attacks on Block Ciphers?. Symmetric Cryptography Nicolas T. Courtois
2007	—	`conf`	Specific S-Box Criteria in Algebraic Attacks on Block Ciphers with Several Known Plaintexts. WEWoRC Nicolas T. Courtois, Blandine Debraize
2006	J	`jnl`	Algebraic Cryptanalysis of the Data Encryption Standard. IACR Cryptol. ePrint Arch. Nicolas T. Courtois, Gregory V. Bard
2006	J	`jnl`	How Fast can be Algebraic Attacks on Block Ciphers ? IACR Cryptol. ePrint Arch. Nicolas T. Courtois
2006	Misc	`conf`	On Exact Algebraic [Non-]Immunity of S-Boxes Based on Power Functions. ACISP Nicolas T. Courtois, Blandine Debraize, Eric Garrido
2005	Misc	`conf`	An Algebraic Masking Method to Protect AES Against Power Attacks. ICISC Nicolas T. Courtois, Louis Goubin
2005	J	`jnl`	An Algebraic Masking Method to Protect AES Against Power Attacks. IACR Cryptol. ePrint Arch. Nicolas T. Courtois, Louis Goubin
2005	A*	`conf`	Analysis of the Bit-Search Generator and Sequence Compression Techniques. FSE Aline Gouget, Hervé Sibert, Côme Berbain, Nicolas T. Courtois, Blandine Debraize, Chris J. Mitchell
2005	Misc	`conf`	Cryptanalysis of Sfinks. ICISC Nicolas T. Courtois
2005	J	`jnl`	Cryptanalysis of Sfinks. IACR Cryptol. ePrint Arch. Nicolas T. Courtois
2005	J	`jnl`	Feistel Schemes and Bi-Linear Cryptanalysis. IACR Cryptol. ePrint Arch. Nicolas T. Courtois
2005	J	`jnl`	On Exact Algebraic [Non-]Immunity of S-boxes Based on Power Functions. IACR Cryptol. ePrint Arch. Nicolas T. Courtois, Blandine Debraize, Eric Garrido
2005	J	`jnl`	The Best Differential Characteristics and Subtleties of the Biham-Shamir Attacks on DES. IACR Cryptol. ePrint Arch. Nicolas T. Courtois
2004	Misc	`conf`	Algebraic Attacks on Combiners with Memory and Several Outputs. ICISC Nicolas T. Courtois
2004	—	`conf`	Algebraic Attacks over GF(2 Public Key Cryptography Nicolas T. Courtois
2004	A*	`conf`	Feistel Schemes and Bi-linear Cryptanalysis. CRYPTO Nicolas T. Courtois
2004	—	`conf`	General Principles of Algebraic Attacks and New Design Criteria for Cipher Components. AES Conference Nicolas T. Courtois
2004	C	`conf`	On Asymptotic Security Estimates in XL and Gröbner Bases-Related Algebraic Cryptanalysis. ICICS Bo-Yin Yang, Jiun-Ming Chen, Nicolas T. Courtois
2004	J	`jnl`	Short Signatures, Provable Security, Generic Attacks and Computational Security of Multivariate Polynomial Schemes such as HFE, Quartz and Sflash. IACR Cryptol. ePrint Arch. Nicolas T. Courtois
2004	—	`conf`	The Inverse S-Box, Non-linear Polynomial Relations and Cryptanalysis of Block Ciphers. AES Conference Nicolas T. Courtois
2003	—	`conf`	A Fast and Secure Implementation of Sflash. Public Key Cryptography Mehdi-Laurent Akkar, Nicolas T. Courtois, Romain Duteuil, Louis Goubin
2003	B	`conf`	About the XL Algorithm over GF(2). CT-RSA Nicolas T. Courtois, Jacques Patarin
2003	J	`jnl`	Algebraic Attacks on Combiners with Memory and Several Outputs. IACR Cryptol. ePrint Arch. Nicolas T. Courtois
2003	A*	`conf`	Algebraic Attacks on Stream Ciphers with Linear Feedback. EUROCRYPT Nicolas T. Courtois, Willi Meier
2003	J	`jnl`	Did Filiol Break AES ? IACR Cryptol. ePrint Arch. Nicolas T. Courtois, Robert T. Johnson, Pascal Junod, Thomas Pornin, Michael Scott
2003	A*	`conf`	Fast Algebraic Attacks on Stream Ciphers with Linear Feedback. CRYPTO Nicolas T. Courtois
2003	—	`conf`	Generic Attacks and the Security of Quartz. Public Key Cryptography Nicolas T. Courtois
2003	—	`conf`	On the Security of HFE, HFEv- and Quartz. Public Key Cryptography Nicolas T. Courtois, Magnus Daum, Patrick Felke
2003	J	`jnl`	SFLASHv3, a fast asymmetric signature scheme. IACR Cryptol. ePrint Arch. Nicolas T. Courtois, Louis Goubin, Jacques Patarin
2003	J	`jnl`	What do DES S-boxes Say to Each Other ? IACR Cryptol. ePrint Arch. Nicolas T. Courtois, Guilhem Castagnos, Louis Goubin
2002	J	`jnl`	About Filliol's Observations on DES, AES and Hash Functions (draft). IACR Cryptol. ePrint Arch. Nicolas T. Courtois
2002	A	`conf`	Cryptanalysis of Block Ciphers with Overdefined Systems of Equations. ASIACRYPT Nicolas T. Courtois, Josef Pieprzyk
2002	J	`jnl`	Cryptanalysis of Block Ciphers with Overdefined Systems of Equations. IACR Cryptol. ePrint Arch. Nicolas T. Courtois, Josef Pieprzyk
2002	Misc	`conf`	Higher Order Correlation Attacks, XL Algorithm and Cryptanalysis of Toyocrypt. ICISC Nicolas T. Courtois
2002	J	`jnl`	Higher Order Correlation Attacks, XL algorithm and Cryptanalysis of Toyocrypt. IACR Cryptol. ePrint Arch. Nicolas T. Courtois
2002	J	`jnl`	On the Security of HFE, HFEv- and Quartz. IACR Cryptol. ePrint Arch. Nicolas T. Courtois, Magnus Daum, Patrick Felke
2002	—	`conf`	Solving Underdefined Systems of Multivariate Quadratic Equations. Public Key Cryptography Nicolas T. Courtois, Louis Goubin, Willi Meier, Jean-Daniel Tacier
2001	A	`conf`	Efficient Zero-Knowledge Authentication Based on a Linear Algebra Problem MinRank. ASIACRYPT Nicolas T. Courtois
2001	J	`jnl`	Efficient Zero-knowledge Authentication Based on a Linear Algebra Problem MinRank. IACR Cryptol. ePrint Arch. Nicolas T. Courtois
2001	B	`conf`	FLASH, a Fast Multivariate Signature Algorithm. CT-RSA Jacques Patarin, Nicolas T. Courtois, Louis Goubin
2001	A	`conf`	How to Achieve a McEliece-Based Digital Signature Scheme. ASIACRYPT Nicolas T. Courtois, Matthieu Finiasz, Nicolas Sendrier
2001	J	`jnl`	How to achieve a McEliece-based Digital Signature Scheme. IACR Cryptol. ePrint Arch. Nicolas T. Courtois, Matthieu Finiasz, Nicolas Sendrier
2001	J	`jnl`	On multivariate signature-only public key cryptosystems. IACR Cryptol. ePrint Arch. Nicolas T. Courtois
2001	B	`conf`	QUARTZ, 128-Bit Long Digital Signatures. CT-RSA Jacques Patarin, Nicolas T. Courtois, Louis Goubin
2001	B	`conf`	The Security of Hidden Field Equations (HFE). CT-RSA Nicolas T. Courtois
2000	A	`conf`	Cryptanalysis of the TTM Cryptosystem. ASIACRYPT Louis Goubin, Nicolas T. Courtois
2000	A*	`conf`	Efficient Algorithms for Solving Overdefined Systems of Multivariate Polynomial Equations. EUROCRYPT Nicolas T. Courtois, Alexander Klimov, Jacques Patarin, Adi Shamir
1998	A*	`conf`	Improved Algorithms for Isomorphisms of Polynomials. EUROCRYPT Jacques Patarin, Louis Goubin, Nicolas T. Courtois