Original papers on the research and development of various security topics, as well as case studies and implementation experiences, are solicited for submission to IWSEC 2026. Topics of interest for IWSEC 2026 include all theory and practice of cryptography, information security, and network security, as in the previous IWSEC workshops.

• Applied cryptography
• Biometrics security and privacy
• Blockchain and cryptocurrency
• Cryptanalysis
• Cryptographic primitives
• Cryptographic protocols
• Cyber physical systems
• Cyberattacks and defenses
• Financial cryptography
• Forensics
• Formal methods for security analysis
• Hardware security
• Human-computer interaction, security, and privacy
• Internet-of-Things security
• Intrusion detection and prevention
• Law and ethics of cybersecurity
• Machine learning and AI security
• Malware analysis
• Measurements for cybersecurity
• Mobile and web security
• Multiparty computation
• Network, system and cloud security
• Offensive security
• Post-quantum cryptography
• Privacy-enhancing technologies
• Privacy-preserving data mining
• Program analysis
• Public-key cryptography
• Real-world cryptographic systems
• Software security
• Supply chain security
• Symmetric-key cryptography

• Submission deadline: June 8, 2026 (AoE)
• Notification of decision: August 20, 2026 (AoE)
• Camera-ready version due: September 17, 2026 (AoE)

Prizes will be awarded to the authors of the Best Paper(s) and the Best Student Paper(s). The main author of the Best Student Paper(s) should be a full-time graduate or undergraduate student as of March 2026.

It is planned that Program Co-Chairs will recommend the authors of selected papers to submit their full versions to either of "IEICE Trans. on Fundamentals, Special Section on Cryptography and Information Security" or "Journal of Information Processing" after consultation between Program Co-Chairs and the authors.

It is planned to publish the conference proceedings by Springer, in the Lecture Notes in Computer Science (LNCS) Series. All of the past IWSEC proceedings have been published in LNCS.

General Co-Chairs:

• Katsuyuki Takashima (Waseda University, Japan)
• Tatsuya Mori (Waseda University, Japan)

Program Co-Chairs:

• Mehdi Tibouchi (NTT Social Informatics Laboratories, Japan)
• Toshiki Shibahara (NTT Social Informatics Laboratories, Japan)

All submitted papers must be original, unpublished, and not submitted in parallel to any other peer-reviewed conferences or journals. Submitted papers must be written in English and be fully anonymous with no author names, affiliations, acknowledgements, or obvious references.

Authors should consult Springer's authors' guidelines and use their proceedings templates, either for LaTeX or for Word, for the preparation of their papers. Springer encourages authors to include their ORCIDs in their papers. In addition, the corresponding author of each paper, acting on behalf of all of the authors of that paper, must complete and sign a Consent-to-Publish form. The corresponding author signing the copyright form should match the corresponding author marked on the paper. Once the files have been sent to Springer, changes relating to the authorship of the papers cannot be made.

Submitted papers may contain at most 16 pages excluding appendices and references, and at most 20 pages including appendices and references. The Abstract input to EasyChair should be less than 500 words. Note that according to the latest LNCS guideline, appendices are required to be placed before the references. Figures and tables with color can be included in papers.

Optionally, any amount of clearly marked supplementary materials may be supplied, following after the main body of the submitted paper; however, reviewers are not required to read or review them, and submissions should be intelligible without them. Supplementary materials are mostly intended for additional data such as experimental data or source code. Note that supplementary materials are not allowed to be included in the camera-ready version.