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Sako Lab
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The lab researches cryptography and blockchain for a safe and secure IT society.

AboutAbout the lab
Building a safe and secure IT society
Sako Lab researches security and privacy technologies to build a safe and secure IT society.
Using technologies such as cryptographic protocols and blockchain, the lab explores how to design systems that are easy to use and trustworthy.
The lab also works on self-sovereign identity infrastructure, which lets people use their own data for their own benefit.
Key terms
- Cryptographic protocol
- A set of rules and procedures that allows computers to exchange information securely
- Blockchain
- A system that records transactions and other data by distributing the management of the records across multiple computers
- Self-sovereign identity infrastructure
- A system that lets people manage and use their own personal information themselves, rather than leaving it to others
NewsLab news
A student received the Excellence Award of the Dean of the School of Fundamental Science and Engineering
A student's paper was accepted at ZKProof 7 in Sofia
ResearchResearch themes
Sako Lab centers its research on technologies such as cryptographic protocols and blockchain, and studies how to design services that take security and privacy into account. The lab also works on self-sovereign identity infrastructure, which lets people use their own data for their own benefit.
*Illustrative imageCryptographic Protocols
The lab researches cryptographic protocols for exchanging information securely, as a core building-block technology.
*Illustrative imageBlockchain
The lab uses blockchain, a tamper-resistant distributed ledger technology, to study how to design trustworthy systems.
*Illustrative imageSelf-Sovereign Identity Infrastructure
The lab works on building self-sovereign identity infrastructure, which lets people use their own data for their own benefit.
MembersFaculty
The members of Sako Lab consist of faculty members, doctoral, master's, and undergraduate students, project research students, exchange students, and non-degree course students.As of 2026
- ProfessorKazue Sako
VoicesStudent voices
Compiled from answers by students who were in the lab. Ratings and reviews reflect individual students' experiences, not the lab's official views.
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RelatedLabs similar to Sako Lab
Shimizu LabSchool of Fundamental Science and Engineering, Department of Computer Science and EngineeringBioinformatics, genome sequence analysis, privacy-preserving…
Uchida LabSchool of Fundamental Science and Engineering, Department of Computer Science and EngineeringTheory and applications of machine learning
Ishikawa LabSchool of Fundamental Science and Engineering, Department of Computer Science and EngineeringComputer vision, artificial intelligence, optimization
Ubayashi LabSchool of Fundamental Science and Engineering, Department of Computer Science and EngineeringSoftware engineering, programming languages, and AI-assisted…The information on this page is compiled by the LabLog team from the lab's public information and interviews. For corrections or removal requests, please contact LabLog, not the lab.
Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Safe Deposit Boxes” Fixedsun / CC0 (cropped)
- Cryptographic Protocols: “Japanese puzzle box (yosegi) - closed” Eugene Alvin Villar / CC BY-SA 4.0 (cropped)
- Blockchain: “Very rusty chain” W.carter / CC0 (cropped)
- Self-Sovereign Identity Infrastructure: “Iris of human male” Osmo Lundell / CC BY-SA 4.0 (cropped)
- Related lab (Shimizu Lab): “DNA sequencing interferogram” 不明 / Public domain (cropped)
- Related lab (Uchida Lab): “Network Visualization” Martin Grandjean / CC BY-SA 4.0 (cropped)
- Related lab (Ishikawa Lab): “Banana Plant Flask by Max Gruber” Max Gruber / CC BY 4.0 (cropped)
- Related lab (Ubayashi Lab): “Programming code” Martin Vorel / CC BY-SA 4.0 (cropped)
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