Conference Publications

• Pseudorandom obfuscation and applications; Pedro Branco, Nico Döttling, Abhishek Jain, Giulio Malavolta, Surya Mathialagan, Spencer Peters,  Vinod Vaikuntanathan; CRYPTO 2025

• Simple and general counterexamples for private-coin evasive LWE; Nico Döttling, Abhishek Jain, Giulio Malavolta, Surya Mathialagan, Vinod Vaikuntanathan; CRYPTO 2025

• Rate-1 statistical non-interactive zero-knowledge; Pedro Branco, Nico Döttling,  Akshayaram Srinivasan; CRYPTO 2025

• Black-box non-interactive zero knowledge from vector trapdoor hash; Pedro Branco, Arka Rai Choudhuri, Nico Döttling, Abhishek Jain, Giulio Malavolta, Akshayaram Srinivasan; In EUROCRYPT 2025

• Signature-Based Witness Encryption with Compact Ciphertext; Gennaro Avitabile, Nico Döttling, Bernardo Magri, Christos Sakkas, Stella Wohnig; ASIACRYPT 2024

• Two-Round Maliciously-Secure Oblivious Transfer with Optimal Rate; Pedro Branco, Nico Döttling, Akshayaram Srinivasan; EUROCRYPT 2024

• Rate-1 Fully Local Somewhere Extractable Hashing from DDH; Pedro Branco, Nico Döttling, Akshayaram Srinivasan, Riccardo Zanotto; PKC 2024

• On The Black-Box Complexity of Correlation Intractability; Nico Döttling, Tamer Mour; ITCS 2024

• Practical Lattice-Based Distributed Signatures for a Small  Number of Signers; Nabil Alkadri, Nico Döttling, Sihang Pu; ACNS 2024

• Post Quantum Fuzzy Stealth Signatures and Applications; Sihang Pu, Sri Aravinda Krishnan Thyagarajan, Nico Döttling, Lucjan Hanzlik; CCS 2023

• A Framework for Statistically Sender Private OT with Optimal Rate; Pedro Branco, Nico Döttling, Akshayaram Srinivasan; CRYPTO 2023

• Efficient Laconic Cryptography from Learning with Errors; Nico Döttling, Dimitris Kolonelos, Russell W. F. Lai, Chuanwei Lin, Giulio Malavolta, Ahmadreza Rahimi; EUROCRYPT 2023

• McFly: Verifiable Encryption to the Future Made Practical; Nico Döttling, Lucjan Hanzlik, Bernardo Magri, Stella Wohnig; Financial Crypto 2023

• Laconic Function Evaluation for Turing Machines; Nico Döttling, Phillip Gajland, Giulio Malavolta; PKC 2023

• Rate-1 Incompressible Encryption from Standard Assumptions; Pedro Branco, Nico Döttling, Jesko Dujmovic; TCC 2022

• IBE with Incompressible Master Secret and Small Identity Secrets; Nico Döttling, Sanjam Garg, Sruthi Sekar, Mingyuan Wang; TCC 2022

• Universal Ring Signatures in the Standard Model; Pedro Branco, Nico Döttling, Stella Wohnig; ASIACRYPT 2022

• Maliciously Circuit-Private FHE from Information-Theoretic Principles; Nico Döttling, Jesko Dujmovic; ITC 2022

• Factoring and Pairings are not Necessary for iO: Circular-Secure LWE Suffices; Zvika Brakerski, Nico Döttling, Sanjam Garg, Giulio Malavolta; ICALP 2022

• Batch OT with Optimal Rate; Zvika Brakerski, Pedro Branco, Nico Döttling, Sihang Pu; EUROCRYPT 2022

• Two-Round Oblivious Linear Evaluation from Learning with Errors; Pedro Branco, Nico Döttling, Paulo Mateus; PKC 2022

• Interaction-Preserving Compilers for Secure Computation; Nico Döttling, Vipul Goyal, Giulio Malavolta, Justin Raizes; ITCS 2022

• Algebraic Restriction Codes and their Applications; Divesh Aggarwal, Nico Döttling, Jesko Dujmovic, Mohammad Hajiabadi, Giulio Malavolta, Maciej Obremski; ITCS 2022

• Laconic Private Set Intersection and Applications; Navid Alamati, Pedro Branco, Nico Döttling, Sanjam Garg, Mohammad Hajiabadi, Sihang Pu; TCC 2021

• Rate-1 Quantum Full Homomorphic Encryption; Orestis Chardouvelis; Nico Döttling; Giulio Malavolta; TCC 2021

• On the Impossibility of Purely Algebraic Signatures; Nico Döttling, Dominik Hartmann, Dennis Hofheinz, Eike Kiltz, Sven Schäge, Bogdan Ursu; TCC 2021

• Universal Proxy Re-Encryption; Nico Döttling, Ryo Nishimaki; PKC 2021

• Multiparty Cardinality Testing for Threshold Private Set Intersection; Pedro Branco, Nico Döttling, Sihang Pu; PKC 2021

• Constant-Rate Non-Committing Encryption from Standard Assumptions; Zvika Brakerski, Pedro Branco, Nico Döttling, Sanjam Garg, Giulio Malavolta; TCC 2020

• Lossiness and Entropic Hardness of Ring LWE; Zvika Brakerski, Nico Döttling; TCC 2020

• A Combinatorial Approach to Quantum Random Functions; Nico Döttling, Giulio Malavolta, Sihang Pu; ASIACRYPT 2020

• Tight Verifiable Delay Functions; Nico Döttling, Sanjam Garg, Giulio Malavolta, and Prashant Nalini Vasudevan; SCN 2020 

• Verifiable Timed Signatures Made Practical; Sri Aravinda Krishnan Thyagarajan, Adithya Bhat, Giulio Malavolta, Nico Döttling, Aniket Kate, and Dominique Schröder; CCS 2020

• Minting Mechanisms for (PoS) Blockchains; Dominic Deuber, Nico Döttling, Bernardo Magri, Giulio Malavolta, and Sri Aravinda Krishnan Thyagarajan; ACNS 2020

• Hardness of LWE on General Entropic Distribution; Zvika Brakerski, Nico Döttling; EUROCRYPT 2020

• Two-Round Oblivious Transfer from CDH or LPN; Nico Döttling, Sanjam Garg, Mohammad Hajiabadi, Daniel Masny, Daniel Wichs; EUROCRYPT 2020

• Candidate iO from Homomorphic Encryption Schemes; Zvika Brakerski, Nico Döttling, Sanjam Garg, Giulio Malavolta; EUROCRYPT 2020; Invited to Journal of Cryptology

• Leveraging Linear Decryption: Rate-1 Fully-Homomorphic Encryption and Time-Lock Puzzles; Zvika Brakerski, Nico Döttling, Sanjam Garg, Giulio Malavolta; TCC 2019

• Rate-1 Trapdoor Functions from the Diffie-Hellman Problem; Nico Döttling, Sanjam Garg, Mohammad Hajiabadi, Kevin Liu, Giulio Malavolta; ASIACRYPT 2019

• Efficient UC Commitment Extension with Homomorphism for Free (and Applications); Ignacio Cascudo, Ivan Damgård, Bernardo David, Nico Döttling, Rafael Dowsley, Irene Giacomelli; ASIACRYPT 2019

• Laconic Conditional Disclosure of Secrets and Applications; Nico Döttling, Sanjam Garg, Vipul Goyal, Giulio Malavolta; FOCS 2019

• Trapdoor Hash Functions and their Applications; Nico Döttling, Sanjam Garg, Yuval Ishai, Giulio Malavolta, Tamer Mour, Rafail Ostrovsky; CRYPTO 2019

• Ring Signatures: Logarithmic Size, No Setup -- from Standard Assumption; Michael Backes, Nico Döttling, Lucjan Hanzlik, Kamil Kluczniak, Jonas Schneider; EUROCRYPT 2019

• Continuous Non-Malleable Codes in the 8-Split-State Model; Divesh Aggarwal, Nico Döttling, Jesper Buus Nielsen, Maciej Obremski, Erick Purwanto; EUROCRYPT 2019

• Incremental Proofs of Sequential Work; Nico Döttling, Russell Lai, Giulio Malavolta; EUROCRYPT 2019

• Obfuscation from Low Noise Multilinear Maps; Nico Döttling, Sanjam Garg, Divya Gupta, Peihan Miao, Pratyay Mukherjee; INDOCRYPT 2018 (eprint)

• Two-Message Statistical Sender-Private OT from LWE; Zvika Brakerski and Nico Döttling; TCC 2018; Invited to Journal of Cryptology (eprint)

• New Constructions of Identity-Based and Key-Dependent Message Secure Encryption Schemes; Nico Döttling, Sanjam Garg, Mohammad Hajiabadi, Daniel Masny; PKC 2018 (eprint)

• Linear-Time Non-Malleable Codes in the Bit-Wise Tampering Model; Ronald Cramer, Ivan Damgård, Nico Döttling, Irene Giacomelli, Chaoping Xing; ICITS 2017 (eprint)

• From Selective IBE to Full IBE and Selective HIBE; Nico Döttling and Sanjam Garg; TCC 2017 (eprint)

• TinyOLE: Efficient Actively Secure Two-Party Computation from Oblivious Linear Function Evaluation; Nico Döttling, Satrajit Ghosh, Jesper Buus Nielsen, Tobias Nilges and Roberto Trifiletti; CCS 2017 (eprint)

• Identity-Based Encryption from the Diffie-Hellman Assumption; Nico Döttling and Sanjam Garg; CRYPTO 2017 Best Paper Award, Invited to Journal of Cryptology (eprint)

• Laconic Receiver Oblivious Transfer and Its Applications; Chongwon Cho, Nico Döttling, Sanjam Garg, Divya Gupta, Peihan Miao and Antigoni Polychroniadou; CRYPTO 2017 (eprint)

• Cryptanalysis of Indistinguishability Obfuscations of Circuits over GGH13; Daniel Apon, Nico Döttling, Sanjam Garg and Pratyay Mukherjee; ICALP 2017 (eprint)

• Concurrently composable security with shielded super-polynomial simulators; Brandon Broadnax, Nico Döttling, Gunnar Hartung, Matthias Nagel and Jörn Müller-Quade; EUROCRYPT 2017 (eprint)

• Two Message Oblivious Evaluation of Cryptographic Functionalities; Nico Döttling, Nils Fleischhacker, Johannes Krupp and Dominique Schröder; CRYPTO 2016 (eprint)

• Rate-1, Linear Time and Additively Homomorphic UC Commitments; Ignacio Cascudo, Bernardo David, Ivan Damgård, Nico Döttling and Jesper Buus Nielsen; CRYPTO 2016 (eprint)

• From stateful hardware to resettable hardware using symmetric assumptions; Nico Döttling, Daniel Kraschewski, Jörn Müller-Quade and Tobias Nilges; ProvSec 2015. Best Paper Award (eprint)

• Efficient Pseudorandom Functions via On-the-Fly Adaptation; Nico Döttling and Dominique Schröder; CRYPTO 2015 (eprint)

• Linear Secret Sharing Schemes from Error Correcting Codes and Universal Hash Functions; Ronald Cramer, Ivan Damgård, Nico Döttling, Serge Fehr and Gabriele Spini; EUROCRYPT 2015 (eprint)

• General Statistically Secure Computation with Bounded-Resettable Hardware Tokens; Nico Döttling, Daniel Kraschewski, Jörn Müller-Quade and Tobias Nilges; TCC 2015 (eprint)

• Low Noise LPN: KDM Secure Public Key Encryption and Sample Amplification; Nico Döttling; PKC 2015 (eprint)

• Lossy Codes and a New Variant of the Learning-With-Errors Problem; Nico Döttling and Jörn Müller-Quade; EUROCRYPT 2013

• Implementing Resettable UC-Functionalities with Untrusted Tamper-Proof Hardware-Tokens; Nico Döttling, Thilo Mie, Jörn Müller-Quade and Tobias Nilges; TCC 2013

• IND-CCA Secure Cryptography based on a Variant of the LPN Problem; Nico Döttling, Jörn Müller-Quade and Anderson Nascimento; ASIACRYPT 2012

• Statistically Secure Linear-rate Dimension Extension for Oblivious Affine Function Evaluation; Nico Döttling, Daniel Kraschewski and Jörn Müller-Quade; ICITS 2012

• Efficient Reductions for Non-Signaling Cryptographic Primitives; Nico Döttling, Daniel Kraschewski and Jörn Müller-Quade; ICITS 2011

• Unconditional and Composable Security using a single Stateful Tamper-Proof Hardware Token; Nico Döttling, Daniel Kraschewski and Jörn Müller-Quade ; TCC 2011

• Vulnerabilities of Wireless Key Exchange based on Channel Reciprocity; Nico Döttling, Dejan Lazich, Jörn Müller-Quade and Antonio Almeida; WISA 2010

Journal Publications

• Identity-based Encryption from the Diffie-Hellman Assumption; Nico Döttling and Sanjam Garg; Journal of the ACM (link)

• Candidate iO from Homomorphic Encryption Schemes;  Zvika Brakerski, Nico Döttling, Sanjam Garg, Giulio Malavolta: . Journal of Cryptology

• Algebraic Restriction Codes and Their Applications; Divesh Aggarwal, Nico Döttling, Jesko Dujmovic, Mohammad Hajiabadi, Giulio Malavolta, Maciej Obremski; Algorithmica

• Low Noise LPN: KDM Secure Public Key Encryption and Sample Amplification; Nico Döttling; IET Information Security, 2016 (Invited) (eprint)

• A CCA2 Secure Variant of the McEliece Cryptosystem; Nico Döttling, Rafael Dowsley, Jörn Müller-Quade and Anderson Nascimento; IEEE Transactions on Information Theory, 58(10):6672–6680, 2012. (eprint)

You can also find some of my publications on my Google Scholar profile.

Teaching

• Cryptography (Universität des Saarlandes, Spring 2019, 2020, 2021, 2022)

• Obfuscation, scientifically (Universität des Saarlandes, Fall 2020)

• Advanced Public Key Cryptography (Universität des Saarlandes, Fall 2018)

• Advanced Public Key Cryptography )

• Coding Theory (Aarhus University, Fall 2015)

• Signals and Codes (KIT, 2010 - 2014)

• Selected Areas of Cryptography (KIT, 2010 - 2013)