International Association
for Cryptologic Research

IOG, is a technology company focused on blockchain research and development. We are renowned for our scientific approach to blockchain development, emphasizing peer-reviewed research and formal methods to ensure security, scalability, and sustainability.

What the role involves:

As a Cryptography Engineer you'll contribute to design, implementation, & integration of secure cryptographic protocols across Cardano-related initiatives, such as Cardano Core Cryptographic Primitives, Mithril, ALBA, Leios etc. This role bridges applied research & engineering, focusing on translating cutting-edge cryptographic designs into robust, production-grade systems. The cryptography engineer will collaborate closely with researchers, protocol designers, architects, product managers, & QA teams to ensure cryptographic correctness, performance, and system alignment.

Work both independently & in collaboration with distributed teams across multiple time zones, showing initiative and ownership over tasks

Design & implement crypto constructions, i.e digital signatures, zero-knowledge proofs, accumulators, commitment schemes

Work independently on software development tasks, demonstrating proactive problem-solving skills.

Develop & maintain cryptographic libraries (primarily in Rust and Haskell, occasionally in C) with an emphasis on safety, performance, clarity, and auditability

Translate cryptographic concepts from academic research into well-structured, reliable implementations that will be used in production systems

Contribute to cryptographic design discussions, parameter tuning, & performance benchmarking, particularly for elliptic curve and zk-based constructions

Analyze & validate protocol security, ensuring soundness, liveness, and resistance to practical adversaries Write and maintain clear documentation, including developer guides and internal design notes

Troubleshoot, debug, and optimize cryptographic code and its interactions with broader systems

While the role is remote, applicants must be located in Japan only

Closing date for applications:

Contact: Marios Nicolaides

More information: https://apply.workable.com/io-global/j/70FC5D8A0C/

The research group de.ci.phe.red LAB in the Department of Computer Science and Engineering at the Indian Institute of Technology Bhilai invites applications from Indian Nationals for the following position under a project funded by the Department of Science & Technology (DST), Government of India, as part of the National Quantum Mission.

1. Project Manager (01 Position)
   • Salary: Consolidated INR 80,000/- per month for 4 years, with a 10% annual increment.
   • Qualifications: Ph.D. in a relevant area, preferably in Computer Science or Mathematics, with a strong background in Cryptography and Mathematics.
   • Essential Expertise: Programming in C/C++ and Python. Hardware implementation in Verilog or VHDL.
   • Desirable Expertise: Familiarity with platforms like ChipWhisperer for fault injection attacks is a big plus.

The work will constitute evaluating NIST PQC standards against fault-injection attacks, leveraging a dedicated Fault-Injection Laboratory established under this project. The project manager will be a part of the project implementation team supervised by Dr. Dhiman Saha (PI).

Closing date for applications:

Contact:

Dr. Dhiman Saha
Room 413B,
Agastya Building,
IIT Bhilai, Durg,
Chhattisgarh 491002

Interested candidates can write to us with their detailed CV at decipheredlab[at]iitbhilai[dot]ac[dot]in

More information: http://dhimans.in/

We’re looking for a motivated individual to join the KISON research group as a temporary research assistant. The role involves working on tasks related to cryptography and privacy-enhancing technologies. If you have an interest in cutting-edge research in security and privacy, we’d love to hear from you! Apply here: https://selection.uoc.edu/web/offersjob/offerdetails.aspx?offerID=7AEF220E729D78B226BA96C7B4C4059A5ECD9AE0846AB024E66E32BE291A123B For questions or more information, feel free to contact m_mahdavi@uoc.edu or Dr. Helena Rifà Pous hrifa@uoc.edu.

Closing date for applications:

Contact: Helena Rifà Pous

More information: https://selection.uoc.edu/web/offersjob/offerdetails.aspx?offerID=7AEF220E729D78B226BA96C7B4C4059A5ECD9AE0846AB024E66E32BE291A123B

Company Overview

We’re LuxQuantum, a dynamic startup tackling the exciting and complex challenges in quantum cybersecurity. Our goal is to build innovative solutions that address interoperability bottlenecks in quantum communications by seamlessly integrating quantum key distribution (QKD) and post-quantum cryptography (PQC). We’re looking for someone to join our small team—not just as a colleague but as a friend—to help lead this mission.

We’re more than a company; we’re a team of innovators, learners, and dreamers. If you want to explore cutting-edge technology with people who genuinely enjoy working together, we’d love to meet you!

Role Overview

As a Quantum Cybersecurity Engineer, you’ll play a key role in developing solutions to tackle interoperability issues in quantum cybersecurity. Think of yourself as both a problem-solver and a collaborator, directly contributing to the creation of leading-edge quantum cybersecurity solutions in an environment where every voice matters.

Closing date for applications:

Contact: contact@luxquantum.lu

More information: https://www.siliconluxembourg.lu/quantum-cybersecurity-engineer-luxquantum/

We are offering a Ph.D. Opportunities at the University of Sheffield, UK. The candidates will have opportunities to work in Sheffield (UK). Requirements for Ph.D. Position • Completed Master’s degree (or equivalent) at a top university in information security, computer science, applied mathematics, electrical engineering, or a similar area • Research experience (such as publishing papers as a first author in reputable venues) • Self-motivated, reliable, creative, can work in a team and want to do excellent research on challenging scientific problems with practical relevance. Desire to publish at top venues (CORE rank A*/A) for information security/applied cryptography (e.g., TDSC, TIFS, S&P, CCS, NDSS, USENIX SEC), ideally on security protocols and secure computation How to apply? Please send me your CV with detailed information. For the Postdoc position, please send three of your best papers. Contact: Dr Prosanta Gope (p.gope@sheffield.ac.uk) Closing date for applications: Contact: Dr Prosanta Gope (p.gope@sheffield.ac.uk)

Closing date for applications:

Contact: Dr. Prosanta Gope (p.gope@sheffield.ac.uk)

I am looking for a motivated and curious student to join my group as a PhD student in the area of cryptanalysis of symmetric ciphers. The research will span classical and quantum cryptanalysis, with intersections in machine learning and cipher design. You are expected to have a strong background in Computer Science or related fields, solid programming skills (C, C++, Python, etc.), and basic knowledge of cryptography and algorithms. Familiarity with Cryptographic tools (SageMath, PyCryptodome, etc.) and exposure to ML is desirable.

You should have a B.Tech/M.Tech (Computer Science or IT) from a recognized institution. CSIR/UGC JRF would be preferable. Stipend will be as per institute norms (INR 60,000 per month, including HRA).

How to apply:
Send an email attached with your CV and transcripts/mark sheets to ravi.anand@iiitd.ac.in, with the subject line “Position -- PhD” by July 15, 2025.

Closing date for applications:

Contact: Ravi Anand (ravi.anand@iiitd.ac.in), IIIT Delhi, New Delhi, India

More information: https://docs.google.com/document/d/1c_wEWSDtR0irAz4T29HAl3o2AWqLZmoWjFtzOJETjQQ/edit?tab=t.0

We are seeking excellent researchers to join the Cryptography Theory and Technology Research Laboratory at IIE. Applicants are encouraged to apply to work on one of the following areas:

• Post-Quantum Cryptography
• Fully Homomorphic Encryption
• Zero-Knowledge Proof
• Symmetric-Key Cryptography

And we are open to considering other areas of cryptography.

Positions at PostDoc, Assistant/Associate/Full Professor levels are available. Initial appointments are normally made on a fixed-term contract. Subsequent contract renewal, promotion and tenure all follow standard practices.

Application Materials Required:

1. Curriculum Vitae
2. 1-5 Representative publications
3. Research statement

Review of applications will begin July 1, 2025 and continue until positions are filled.

Closing date for applications:

Contact: Xianhui Lu (luxianhui@iie.ac.cn); Yi Deng (deng@iie.ac.cn); Song Tian (tiansong@iie.ac.cn)

Applications are invited for the MS and PhD positions at the Department of Computer Science and Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan. The successful candidate will work at the Cryptology and Network Security Lab under the guidance of Dr. Arijit Karati on diverse topics in applied cryptology and network security.

Candidates for the applied cryptography domain must comprehend formal security analysis, secure coding, and effective security integration in the application domains.

Candidates for the ML/AI domain, must comprehend search/optimization algorithms, classification, regression, and other essential aspects, including backdoor attacks/data poisoning, model inversion, adversarial attack, and membership Inference.

Responsibilities: Apart from academic work, students must be involved in several activities in a group or individually, such as (not limited to):

Design and implementation of safety protocol.

Assesment of the security and performance metric.

Research meeting with the supervisor.

Requirements: (02 MS and 02 PhD positions)
Apart from the university's basic admission policies (https://cse.nsysu.edu.tw/?Lang=en), students are desired to have the following key requirements:

Strong motivation on cryptography or AI security.

Knowledge of modern technology.

Knowledge of field-wise basic mathematics.

Knowledge of at least two programming languages, such as Python/Java/C/C++.

Master's thesis must match respective research fields. (for PhD positions)

Scholarship:

Under the university policy.

Project funding (availability based on the performance of master's and Ph.D. students).

What students can expect:

Cooperation from the supervisor and lab mates.

The rich culture in research and related activities.

Flexibility in communication, e.g., English.

Submit your detailed CV by August 30, 2025.

Application Deadline: September 30, 2025

Closing date for applications:

Contact: Arijit Karati (arijit.karati@mail.cse.nsysu.edu.tw)

More information: https://oia.nsysu.edu.tw/static/file/308/1308/img/NSYSUAY2025-2026AdmissionApplicationGuideforInternationalDegreeStudents.pdf

Applications are invited for the Post-doc position in applied cryptography and network security at the Department of Computer Science and Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan. Applicants with expertise in at least one of the following areas are preferred: post-quantum cryptography, automotive security, developing novel cryptographic primitives and protocols, side-channel analysis, and machine-learning techniques for safety applications. Applicants require knowledge of formal security analysis, secure coding, and the practical integration of domain security into application domains.

Essential Qualifications:

PhD degree in CSE/Mathematics/IT/electrical engineering with a specialization in Information/Network Security from a reputable Institution (preferably ranked within the QS WUR 500).

Outstanding track record of publications in Journals (preferably JCR-Q1 or prestigious IEEE journals) and security-related conferences.

Application Deadline: 15-08-2025

Closing date for applications:

Contact: Arijit Karati (arijit.karati@mail.cse.nsysu.edu.tw)

More information: https://www.canseclab.com/

Context Our team develops pre-silicon analysis tools to: 1) identify exploitable vulnerabilities at the software level based on these interactions between a software and a microarchitecture, or 2) formally prove the security, for a given attacker model, of a system embedding hardware/software countermeasures against fault injections. These tools implement a methodology that has shown to be successful to find microarchitectural vulnerabilities and/or prove the robustness, for a given fault model, of various RISC-V based processors [S. Tollec et al. FMCAD 2023]. For instance, we have formally proven the security of OpenTitan's processor to single bit-flip injections [S. Tollec et al. TCHES 2024].

Scientific Challenge In this thesis, we aim to formalize HW/SW contracts dedicated to the security analysis of embedded systems in the context of fault injection attacks.

Goals and Expected Contributions The long-term goal is to create efficient techniques and tools that contribute to the design and assessment of secured systems, reducing the time-to-market during the design phase of secure systems. We foresee the investigation of several research questions:

The formalization of contracts, potentially as an extension of our hardware partitioning approach;

The security verification of hardware processor implementations;

The automatic synthesis of contracts;

The application of such contracts for the security verification of software implementations.

Requirements Masters’s Degree in Electronics or Computer Science. Excellent interpersonal and communication skills, and a solid background in any of the following fields is expected: computer architecture, programming languages, formal methods, cyber-security. Knowledge or French (spoken or written) is not required but may be helpful on a day-to-day basis.

Application Detailed version of this research position upon demand. Please send the following documents: CV, cover letter (in French or English), transcript of records

Closing date for applications:

Contact: Mathieu Jan (mathieu.jan - cea.fr) and Damien Couroussé (damien.courousse - cea.fr). Reviewing of applications will continue until the position is filled.

COSIC is looking for a motivated researcher who fit into the following profile: PhD candidate to work on Hardware implementations secured against physical attacks.

Job Description : The position is funded by Flemish Research Funds (FWO). The PhD candidate will work in collaboration with the research group of Prof. Amir Moradi from University of Darmstadt. The research program is defined in a joint research project jointly funded by FWO (Belgium) and DFG (Germany). The title of the project is MatSec – Maturing Physical Security Models in Realistic Scenarios. The PIs of the project in COSIC are Dr. Svetla Nikova and Prof. Vincent Rijmen.

Security models for side-channel analysis and combined attacks for HW implementations exist, but they often make unrealistic assumptions or are inaccurate in modeling physical effects. This results in countermeasures that are either overdesigned, unnecessarily increasing the costs, or still vulnerable to attacks when deployed. The main objective of this project is to provide security models that accurately abstract attacks against cryptographically secured physical devices and that allow for the creation of efficient countermeasures on hardware guaranteeing security in practice.

We are looking for people to work on the following topics: (1) Realistic side-channel models capturing the circuit’s real behavior and achieving a balance between security and efficiency and providing improved countermeasures. (2) Security models and randomness generation: to develop procedures for constructing masked HW/SW implementations with low randomness requirements (3) Combined security models extending known fault/combined adversaries.

Specific Skills Required: For the PhD position: The candidates should hold a master’s degree in Engineering, Mathematics or Computer Science with very good grades, very good knowledge and experience with programing with C/C++ and Verilog/VHDL. Preferably to have passed courses in Cryptography and/or Computer Security.

Closing date for applications:

Contact: Dr. Svetla Nikova

More information: https://www.esat.kuleuven.be/cosic/wp-content/uploads/2025/06/PhD-position_FWO-DFG.pdf

The Department of Combinatorics and Optimization at the University of Waterloo invites applications from qualified candidates for a 2-year position as a Cryptographic Research Architect on the Open Quantum Safe project (https://openquantumsafe.org/).

This position is available immediately in Professor Stebila’s research group. You will be working with a world-wide team of researchers and developers from academia and industry on the Open Quantum Safe project. You will have the opportunity to push the boundaries of applied post-quantum cryptography and contribute to various open-source projects. You will help integrate new post-quantum cryptographic algorithms into the liboqs open-source library, and design and implement techniques for evaluating and benchmarking these cryptographic algorithms in a variety of contexts.

The field of post-quantum cryptography is rapidly evolving, and you will need to track ongoing changes to algorithms due to peer review and advances by researchers via the the NIST Post-Quantum Cryptography project forum. In addition to algorithm research, tasks cover all aspects of the software development lifecycle and include design, programming cryptographic algorithms, integrating other cryptographic implementations into the liboqs framework, integrating liboqs into 3rd party open-source projects, testing, benchmarking and documentation. You may be asked to take an ownership role in coordinating the development of various sub-component of the Open Quantum Safe project.

The appointment will be a full-time position for 2 years. The salary range is $80,000–$115,000/year and commensurate with experience.

Canadians, Canadian Permanent Residents, and those who are legally entitled to work in Canada will be given priority consideration for this position.

For more information on the position and how to apply, please see https://openquantumsafe.org/team/open-positions

Closing date for applications:

Contact: Douglas Stebila (dstebila@uwaterloo.ca)

More information: https://openquantumsafe.org/team/open-positions

Context Our team develops pre-silicon analysis tools to: 1) identify exploitable vulnerabilities at the software level based on these interactions between a software and a microarchitecture, or 2) formally prove the security, for a given attacker model, of a system embedding hardware/software countermeasures against fault injections. These tools implement a methodology that has shown to be successful to find microarchitectural vulnerabilities and/or prove the robustness, for a given fault model, of various RISC-V based processors [1]. For instance, we have formally proven the security of OpenTitan's processor to single bit-flip injections [2].

[1] S. Tollec et al. μArchiIFI: Formal Modeling and Verification Strategies for Microarchitectural Fault Injections. FMCAD 2023

[2] S. Tollec et al.. Fault-Resistant Partitioning of Secure CPUs for System Co-Verification against Faults. TCHES 2024

Objectives

Your main missions will be:

- To design and extend our pre-silicon methodology and associated tools to support different secured processors. In particular, leverage the specificities of the countermeasures embedded by such secured processors to speedup analysis techniques, but also integrate in our methodology and tools post-synthesis netlist level analyses of hardware architectures.

- To participate to a project-scale experimental evaluation aiming to fill the gap between pre-silicon tools and post-silicon security evaluations.

Location Saclay (Paris area) or Grenoble.

Requirements PhD or a Masters’s Degree in Electronics or Computer Science. Excellent interpersonal and communication skills, and a solid background in any of the following fields is expected: computer architecture, programming languages, formal methods, cyber-security. Knowledge or French (spoken or written) is not required but may be helpful on a day-to-day basis.

Application Please send the following documents: CV, cover letter (in French or English), transcrpit of records

Closing date for applications:

Contact: Mathieu Jan (mathieu.jan@cea.fr) and Damien Couroussé (damien.courousse@cea.fr). Reviewing of applications will continue until the position is filled.

Unpaid, part-time fellowship (3–6 months), with potential to evolve into a fully-funded, startup-style venture We invite applied cryptographers to join a part-time, unpaid pilot fellowship focused on zero-knowledge proofs, MPC, and secure data pipelines for biosecurity. No prior biosecurity experience is required—just strong crypto skills and curiosity. You’ll work collaboratively with fellow cryptographers, developers, and biosecurity experts to develop tangible, economically sustainable prototypes, with the goal of launching a funded venture by program’s end. This role is designed to run alongside your current commitments—no need to pause full-time work.

Fellow Responsibilities
- Design zk‑SNARK/STARK or MPC circuits to verify epidemiological data integrity and outbreak modeling
- Prototype privacy-preserving alert systems for decentralized biosurveillance
- Collaborate with peer cryptographers and cross-disciplinary fellows on open-source proof-of-concept systems
- Co-author deliverables: circuit specs, threat models, implementation evaluations

Qualifications:
- Master’s or PhD in cryptography, computer science, mathematics, or related field
- Strong programming and mathematical background
- Experience with zk frameworks (e.g., Circom, snarkjs, arkworks) or MPC is a plus
- No prior biosecurity/domain expertise required—we’ll provide domain support
-Available to work part-time alongside existing commitments

Program Structure & Benefits:
- Unpaid and part-time: built to fit around ongoing work or study
- Goal-driven: produce a self-sustaining prototype or venture by program end
- Collaborative environment: work alongside other cryptographers with mentorship from senior crypto and domain experts
- Opportunity to transition into a funded startup or project launch post-fellowship

Application Instructions:
Send us an email with a brief overview of your background and skills

Closing date for applications:

Contact: bharat@causality.network

More information: https://musematrix.xyz/

Secure Computation Technologies, such as Multiparty Computation, allow the purposeful processing of private data (distilling value from such data), without compromising the privacy of this data. Today’s interconnected world, smart applications, and global business, necessitating the use of collaborative analytics, require the collection and processing of private information. In this PhD trajectory you will be exploring ways and developing protocols and primitives that enhance the security, functionality, and efficiency of secure computation technologies (e.g., multiparty computation – MPC), when designed for particular application scenarios, such as private machine learning use-cases.

In this 4-year PhD trajectory, you are expected to:

Conduct original and novel research in the field of Secure Computation Technologies;

Design novel protocols for privacy-preserving (machine learning) applications;

Publish and present scientific articles at international journals and conferences;

Engage in collaborations in academia and industry;

Assist in relevant teaching activities.

The position is fully funded for 4 years.

Closing date for applications:

Contact: Eleftheria Makri

More information: https://www.universiteitleiden.nl/en/vacancies/2025/q2/15751-phd-candidate-secure-computation-technologies-and-applications-to-machine-learning

The Jean-Monnet University (UJM) at Saint-Etienne in France is now seeking excellents candidates for tenure-track (Associate Professor) position starting in november 2025.

This is a special position in France, as it is a first 5-year contract, and if the indicators are met the position automatically becomes that of a Full Professor. For 5 years, the person recruited is only required to carry out 64 hours of teaching per year, with dedicated financial resources. It's a research-oriented position in one of Europe's leading hardware security teams (the SESAM team at Laboratoire Hubert Curien).

The objective of this position is to ensure the long-term security of embedded systems by developing countermeasure mechanisms that can defend against sophisticated attacks at the intersection of software and hardware, starting from the design phase. This will result in new protection concepts being proposed that take into account the evolving cyber threat and the complexity of attack paths that exploit vulnerabilities in both software and hardware.

We are therefore looking for excellent candidates with at least 5 years' post-doctoral experience and an excellent list of scientific contributions and publications in the field of hardware security.

Closing date for applications:

Contact: Prof. Lilian BOSSUET - lilian.bossuet@univ-st-etienne.fr

More information: file:///C:/Users/bl16388h/Downloads/UJM%202025%20CPJ%20Appel%20%C3%A0%20candidatures%20CAYSE.pdf

I am looking for a PhD student in the 6-year project CAVE, funded by the German Research Foundation (Deutsche Forschungsgemeinschaft, DFG) through the Emmy Noether Programme.

Why should you apply? The position involves exploring innovative methods in the field of Computer-Aided Security Verification, with the goal of publishing in leading international venues, broadening the research network, initiating global collaborations, and formulating independent research inquiries. For this, I work closely with my PhD students, including regular one-to-one meetings, to support and foster your research.

Location: The newly established junior research group on Computer-Aided Verification of Physical Security Properties (CAVE) is affiliated with the Faculty of Computer Science at Ruhr University Bochum (RUB). RUB has been a leader in IT security in Europe for more than two decades, and this expertise is integral to the Faculty of Computer Science.

Requirements: A Master’s Degree or a strong Bachelor's Degree in Computer Science or related fields. Excellent interpersonal and communication skills in English as well as solid background in any of the following fields are expected: cryptographic engineering, hardware security, physical implementation attacks (SCA & FIA) or profound knowledge of formal verification techniques.

Deadline: Reviewing of applications will continue until the position is filled.

Closing date for applications:

Contact: Pascal Sasdrich (pascal.sasdrich@rub.de). If you are interested, please send an email with the following documents in a single PDF (max. 10 MB) and subject line "[CAVE] Application for PhD position": CV, transcript of records, brief cover letter, contact details of 2-3 references.

https://jobs.comcast.com/job/philadelphia/comcast-cybersecurity-senior-embedded-researcher-pqc-engineering/45483/82098825456

Closing date for applications:

Contact: bahman_rashidi@comcast.com

More information: https://jobs.comcast.com/job/philadelphia/comcast-cybersecurity-senior-embedded-researcher-pqc-engineering/45483/82098825456

https://jobs.comcast.com/job/philadelphia/comcast-cybersecurity-sr-principal-advanced-cryptographic-solutions/45483/82098826128

Closing date for applications:

Contact: bahman_rashidi@comcast.com

More information: https://jobs.comcast.com/job/philadelphia/comcast-cybersecurity-sr-principal-advanced-cryptographic-solutions/45483/82098826128

Who we are: IOG is a technology company focused on blockchain research and development. We are renowned for our scientific approach to blockchain development, emphasizing peer-reviewed research and formal methods to ensure security, scalability, and sustainability. Our projects include the Cardano blockchain, as well as other products in the areas of decentralized finance (DeFi), governance, and identity management, aiming to advance the capabilities and adoption of blockchain and Web3 technology globally.

What the role involves: As a Research Fellow at IOG, you will be responsible for conducting high-quality research, combining your well-developed research skills with a passion for collaborating in innovative research projects. We are looking for someone who is interested in blockchain technologies specifically to conduct research on post-quantum cryptographic solutions for enhancing the security and scalability of decentralized ledger technologies, and potentially harnessing quantum computation to develop novel, future-proof cryptographic protocols. You will join our team of research fellows contributing directly to our diverse development efforts.

Further information: For additional information as well as submitting your application, follow the link in the ad title.

Closing date for applications:

Contact: Sheridan Williams, sheridan.williams@iohk.io (for general questions)

More information: https://apply.workable.com/io-global/j/9ED65A53EA/