Hirohisa Iijima

Background

About Hirohisa Iijima

PROFESSIONAL SUMMARY [R&D - Applied Cryptography]- Security Module (3+ years), DLT (aka Blockchain), Contactless IC Card Auth/Issue System, Software Design/Development, Tech Lead/Director (12+ years)- Achieved High-Security and Fast Response- Patents (2 Gazettes and Applied.)-[Results] Delivered to Client as Security System. Won the Commodity/Standards (CC EAL, ID card system). Expertise popular cryptography (Symmetric/Asymmetric) and security protocols. In-house Lead & Pioneering Enlightenment.[Research (Applied/Fundamental)]- Digital Speech Processing (10+ years) S/N Improvement Technology, VoIP Prototype System, Patent Gazette (JPO). Vowel Spectrum Transformation for Speech Synthesizer- Finite Element Simulation System. Speech Production, Glottal Flow based on Nonlinear Navier-Stokes Equation, Supercomputer (1986-1990).[Product and Service]- Tool for Embedded Linux OS engineers (Lineo Vzet. Pioneer Product Status. Patent Gazette (JPO)- Embedded Linux Training Service (12 years). Textbook/Exercises Development and In-Operation, Lecturer. Achieved over 1,200 Trainees (From Students To Engineers) with Essential Linux Technologies (Kernel scheduler, Memory Management, Device Drivers (interrupt handler, mmap, gpio, work queue, DMA), GPL)[Technical Support]- Commercial EC Server, OS & DB tuning (On-premise & Cloud(AWS/GCP); OS (sysctl), DB tuning)- Server migration (On-premise to Cloud) Supervisor- Commercial E-Money Transaction Server (USB sysfs, mmap troubleshot)- Client Support Desk Administrator (Troubleshoot, Failure/Performance Analyses). SOCIAL ACTIVITIES - Deliberation member of IEC/TC65/WG10 Japanese Committee (Network System Security)- Embedded Linux Training at Academic institutions in Thailand (4 years) and Japan (10 years)- Committee-person for IEICE, Japan (Information Security, 9 years)- Reviewer of Submitted Manuscripts for International Journals (Information Security, Speech Processing (ASA(Acoustical Society of America))- Presentations at CE Linux Forum (Linux Foundation), ASA. Participant of CRYPTO (IACR), Certicom Seminar, CARDIS.