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Information Theory Lab
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The lab studies information security based on information theory and discrete mathematics.
AboutAbout the lab
Exploring information security through information theory.
The Information Theory Lab studies Shannon-theoretic analysis of information and communication systems, universal data compression, and information security technologies such as secret sharing.
Because the Internet is used by an unspecified large number of people, the lab holds that establishing information security technologies that protect important information is essential.
Drawing on information theory and discrete mathematics, the lab studies fingerprinting codes, secret sharing schemes, and visual cryptography.
Key terms
- Fingerprinting code
- A fingerprinting code: a code used to prevent licensed digital content, such as video, from being distributed without authorization.
- Secret sharing scheme
- A secret sharing scheme: a method of protecting secret information by splitting it into shares. The lab works on schemes that allow participants to be added without redistributing the existing shares.
- Visual cryptography
- Visual cryptography: a cryptographic method in which overlaying shares lets the human eye read a secret image.
ResearchResearch themes
Drawing on information theory and discrete mathematics, the lab studies the analysis of information and communication systems and information security technologies. The lab holds that, on the Internet used by an unspecified large number of people, it is essential to establish technologies that protect important information.
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MembersFaculty
- ProfessorHiroki Koga
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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: “EFTA00000441 - Server room filled with networking equipment cables and rack-mounted servers” Federal Bureau of Investigation / Public domain (cropped)
- Codes and cryptography for protecting information: “Singlet-front” 作者不詳 / Public domain (cropped)
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