Chonosuke Takagi
Chonosuke Takagi (高木 長之助, Takagi Chōnosuke, 26 October 1948 – 6 December 2016) was a Japanese judoka.
| Medal record | ||
|---|---|---|
Representing  | ||
| Men's Judo | ||
| World Championships | ||
.svg.png){kind=icon} | 1973 Lausanne | +93 kg |
.svg.png){kind=icon} | 1975 Vienna | +93 kg |
Takagi is from Shirahama, Chiba and began judo when he was in junior high school.[1]
When he was a member of judo club at Awa high-school (安房高校, Awa Kōkō), the senior of club is Masatoshi Shinomaki.[1]
Takagi began working for the Tokyo Metropolitan Police Department after graduation from Nihon University in 1971.[1] He participated in the World Championship twice and won a gold medal in 1973 and a bronze medal in 1975.
As of 2011, Takagi coaches judo at his alma mater, Nihon University. Among his students are Jun Konno, Michiaki Kamochi, Makoto Takimoto and others. He died of a heart attack at the age of 68 on 6 December 2016.[2]
Achievements
- 1970 – All-Japan Weight Class Championships (Heavyweight) 1st
- 1972 – All-Japan Weight Class Championships (Heavyweight) 2nd
- 1973 - World Championships (Heavyweight) 1st
- - All-Japan Championships (Openweight only) 2nd
- 1975 - World Championships (Heavyweight) 3rd
- - All-Japan Championships (Openweight only) 2nd
- 1976 - All-Japan Championships (Openweight only) 3rd
- 1977 - All-Japan Championships (Openweight only) 3rd
- 1978 – Jigoro Kano Cup (Heavyweight) 3rd
- - All-Japan Championships (Openweight only) 2nd
- 1980 –All-Japan Weight Class Championships (Heavyweight) 3rd
gollark: <@151391317740486657> Do you know what "unsupported" means? PotatOS is not designed to be used this way.
gollark: Specifically, 22 bytes for the private key and 21 for the public key on ccecc.py and 25 and 32 on the actual ingame one.
gollark: <@!206233133228490752> Sorry to bother you, but keypairs generated by `ccecc.py` and the ECC library in use in potatOS appear to have different-length private and public keys, which is a problem.EDIT: okay, apparently it's because I've been accidentally using a *different* ECC thing from SMT or something, and it has these parameters instead:```---- Elliptic Curve Arithmetic---- About the Curve Itself-- Field Size: 192 bits-- Field Modulus (p): 65533 * 2^176 + 3-- Equation: x^2 + y^2 = 1 + 108 * x^2 * y^2-- Parameters: Edwards Curve with c = 1, and d = 108-- Curve Order (n): 4 * 1569203598118192102418711808268118358122924911136798015831-- Cofactor (h): 4-- Generator Order (q): 1569203598118192102418711808268118358122924911136798015831---- About the Curve's Security-- Current best attack security: 94.822 bits (Pollard's Rho)-- Rho Security: log2(0.884 * sqrt(q)) = 94.822-- Transfer Security? Yes: p ~= q; k > 20-- Field Discriminant Security? Yes: t = 67602300638727286331433024168; s = 2^2; |D| = 5134296629560551493299993292204775496868940529592107064435 > 2^100-- Rigidity? A little, the parameters are somewhat small.-- XZ/YZ Ladder Security? No: Single coordinate ladders are insecure, so they can't be used.-- Small Subgroup Security? Yes: Secret keys are calculated modulo 4q.-- Invalid Curve Security? Yes: Any point to be multiplied is checked beforehand.-- Invalid Curve Twist Security? No: The curve is not protected against single coordinate ladder attacks, so don't use them.-- Completeness? Yes: The curve is an Edwards Curve with non-square d and square a, so the curve is complete.-- Indistinguishability? No: The curve does not support indistinguishability maps.```so I might just have to ship *two* versions to keep compatibility with old signatures.
gollark: > 2. precompilation to lua bytecode and compressionThis was considered, but the furthest I went was having some programs compressed on disk.
gollark: > 1. multiple layers of sandboxing (a "system" layer that implements a few things, a "features" layer that implements most of potatOS's inter-sandboxing API and some features, a "process manager" layer which has inter-process separation and ways for processes to communicate, and a "BIOS" layer that implements features like PotatoBIOS)Seems impractical, although it probably *could* fix a lot of problems
References
- "近代柔道 1993年12月号 名選手の技と技術（第6回） 大外刈り&釣り込み腰 –高木長之助-". Baseball Magazine Sha Co., Ltd. 20 December 1993.
- http://www.asahi.com/articles/ASJD764WWJD7UTQP03G.html
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