Dunlop Slazenger

Dunlop Slazenger was a sports equipment manufacturing company formed by now-defunct BTR plc by consolidating the various sports brands acquired as part their take-over of Dunlop Holdings in 1985.[1] It is currently owned by Sports World International.

The company is most recognised for its involvement in golf, tennis, squash and badminton through the Dunlop Sport, Slazenger, Maxfli and Carlton Sports brands.

Overview

In 1996 the company was sold in a management buyout backed by private equity firm Cinven.[2] This arrangement did not have a successful existence, and Dunlop Slazenger soon found itself being run by the banks, led by The Royal Bank of Scotland.[3] Under the banks management, TaylorMade-adidas Golf took up their option to purchase the Maxfli golf brand in 2004, following a previous licensing arrangement,[4] and the rights to Slazenger Golf in North America were sold to the Slazenger Golf Products Company.[5]

The remainder of Dunlop Slazenger was eventually sold to Sports Direct in 2004. Since then Dunlop, Slazenger and other brands have been licensed or sold to other companies, notably Dunlop being sold to Sumitomo's SRI Sports in 2016-17.[6]

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
gollark: There's a list.
gollark: Lots of them.

References
  1. "Dunlop and BTR Reach an Accord". NY Times. March 9, 1985. Retrieved 2008-09-23.
  2. "British Investment Firm To Buy BTR Sports Unit". NY Times. December 20, 1995. Retrieved 2008-09-23.
  3. Wootliff, Benjamin (February 10, 2001). "Cinven concedes defeat on Dunlop". London: The Daily Telegraph. Retrieved 2008-09-23.
  4. Waples, John (January 5, 2003). "Dunlop back on form after golf sale". London: The Times. Retrieved 2008-09-23.
  5. "Dunlop Sells North American Brand Rights of Slazenger Golf Business to Cleveland-based Company". AllBusiness.com. November 14, 2002. Retrieved 2008-09-23.
  6. Wood, Zoe (2016-12-27). "Sports Direct sells Dunlop for $137m". the Guardian. Retrieved 2018-07-11.
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