Cybernetica

Ahto BuldasChief researcher

Cybernetica

A State hold R&D company in Estonia

Stock Capital: EUR 1.15M Founded 1997 as a derivative of the Institute of Cybernetics

Fields of actions: data security, systems development, marine navigation technology.

23 persons in Information Security (ISec) department (5 PhDs and 7 MScs)

ISec department: activities

Security software development • Communications security• PKI • Time stamping

Numerous scientific papers on time-stamping

Close cooperation with universities

Peeter Laud (1977) (PhD, 2002 “Computationally secure information flow”)

Meelis Roos (1975) (MSc, 1999 “Integrated time-stamping and notarization”)

Jan Willemson (1974 ) (PhD, 2002 “Size-efficient interval time stamps”)

ISec department: some people

Cybernetica’s R&D support for national projects

• National ID card project• Electronic documents and digital

signatures• Backbone for governmental

information system (X-road) -- Provides unified access to all governmental databases Ensures confidentiality, integrity and traceability of exchanged data

Time stamping and electronic notarization

Research on time-stamping started at 1997

Most important paper: A.Buldas, P.Laud, H.Lipmaa, J.Willemson. “Time-stamping with binary linking schemes” -- CRYPTO’98.

More than 10 papers on time-stamping and PKI, 2 PhD theses

Developed -- a linkage-based time-stamping system, which provides• continuous validity of time stamps and electronic signatures• efficient off-line verification (previous schemes were too

inefficient for practical use)• accountable service

Main goals (in this project)

Technical roadmap for next three years on information security technologies -- September, 2003

International data security workshop in Estonia, during 2004.