n.takana

About

• Name: Norimasa TAKANA
• Affiliation: University of Tsukuba
• Major: Computer Engineering

Links

• mail: contact[at sign]takana.dev
• Twitter: _Alignof
• github: Alignof
• keybase: alignof
• ORCiD: 0000-0002-0479-9150
• slides: slides.takana.dev
• blog: 303 See Other

Awards

• 第 52 回 インターネットと運用技術研究会 学生奨励賞 受賞 (2021)
• 筑波大学 情報科学類 学類長賞 受賞 (2024)
• 第 36 回コンピュータシステム・シンポジウム 最優秀若手発表賞 受賞 (2024)
• 2024 年度未踏 IT 人材発掘・育成事業 スーパークリエータ 認定
• 第 37 回コンピュータシステム・シンポジウム 最優秀若手発表賞 受賞 (2025)
• 筑波大学 茗渓会賞 受賞 (2026)
• 情報処理学会 コンピュータサイエンス領域奨励賞 受賞 (2026)

Papers

• Hikami: A Lightweight Hypervisor for Emulating RISC-V Extension Semantics with Sail-Driven Auto-generation
  • doi: https://doi.org/10.1145/3814943.3816171
• Design and evaluation of a dedicated information environment with both portability and confidentiality
  • doi: https://doi.org/10.1109/COMPSAC54236.2022.00162

Activities

• SecHack365 '19 思索駆動
• seccamp '20 Y-Ⅲ
• minicamp '21 tutor
• Cybozu labyouth 12th (2022)
• seccamp '23 L3 講師
• nextcamp '23 N7,N11 講師
• 2024年度未踏IT人材発掘・育成事業（スーパークリエータ）
• seccamp connect '25 '26 講師

Interests

Projects

• cc_sakura: A small self-hosting C compiler.
• carron: RV32/64IMAC emulator
• Juggernaut: 疑似時限爆弾解除競技
• Human C Compiler Contest: HCCC -Human C Compiler Contest-
• HCCC_Infra: Infrastructure for HCCC (written in rust + axum)
• banana_diver: compiler for 𝒅𝒆𝒗(𝒊)𝒄𝒆-𝒕𝒓𝒆𝒆 𝗕𝗹𝗼𝗯
• helloworld_in_riscv_and_rust_baremetal: hello world in bare-metal rust / risc-v.
• wild-screen-alloc: Hobby slab allocator for bare-metal rust.
• raki: RISC-V instruction decoder written in Rust.
• SvxxVisualizer: RISC-V address translation visualizer. (support Sv39)
• hikami: Hypervisor for RISC-V H-extension. (support IOMMU)
• ASCII CARD: Card game to memorize ASCII

PGP public key

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abLqWAEAit1BEkvEMdGYrgZJu5o67weRssaYtgOv+y+o591zqAc=
=grbW
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

OpenPGP key transition statement (2026-09-26)

Old key: 6A4B 60FF 1D9C DE6D 80B7  33D8 F36A AB9B 4B08 501C
         Alignof (main) <[email protected]>
New key: 9126 14D7 A225 0DED AB4B  0688 BE82 E6CF CFD2 63E2
         Norimasa TAKANA <[email protected]>

- From now on please use the new key for encryption and signature
verification. This statement is signed by both keys.

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