Perfect Dark 'Perfect Dark (パーフェクトダーク) is a peer-to-peer file-sharing (P2P) application from Japan designed for use with Microsoft Windows.' - Wikipedia English. In short, it's your best way to acquire obscure Japanese stuff, such as DLSite files, various doujin media, audio files 0 and other obscure Japanese lewd entertainment. Full list of all 20 Perfect Dark achievements worth 200 gamerscore. It takes around 50-60 hours to unlock all of the achievements on Xbox 360.

Perfect Dark (パーフェクトダーク) is a peer-to-peerfile-sharing (P2P) application from Japan designed for use with Microsoft Windows. It was launched in 2006. Its author is known by the pseudonymKaichō (会長, 'The Chairman'). Perfect Dark was developed with the intention for it to be the successor to both Winny and Share software.^[4] While Japan's Association for Copyright of Computer Software reported that in January 2014, the number of nodes connected on Perfect Dark (24000) was less than on Share (44000), but more than on Winny (12000),^[5] Netagent in 2018 reported Winny being the largest with 50 000 nodes followed by Perfect Dark with 30 000 nodes followed by Share with 10 000.^[6] Netagent asserts that the number of nodes on Perfect Dark have fallen since 2015 while the numbers of Winny hold steady. Netagent reports that users of Perfect Dark are most likely to share books/manga.

As of version 1.02 (2008), code-named 'STAND ALONE COMPLEX', there is support for the program to run in English, an option that can be selected when the program is installed.

Overview[edit]

Perfect Dark is still being actively developed. The author does not ask that the program's users at this point become dedicated 'users' of the software. Instead, the author asks them to participate in the test phase. Through this test phase, the author hopes for bug reports and discussion that will help shape Perfect Dark into a better program.

DKT+DHT+DU[edit]

The author implements an architecture called DKT+DHT+DU in the design of the network. These three parts compose the entire network.

• 'DKT' stands for Distributed Keyword Table.
• 'DHT' for Distributed Hash Table.
• 'DU' for distributed Unity.

'DKT' is mainly for providing effective file searching while 'DHT' and 'DU' is used for effective file sharing and enhancing anonymity.

Network bandwidth requirement[edit]

Perfect Dark has higher bandwidth and hard drive space requirements than its predecessors Winny and Share. The minimum upload speed is 100 kbit/s.

Perfect Dark requires more network bandwidth and hard disk space than Winny or Share, forcing a fairer load on all users. If a user does not have Perfect Dark configured with the proper settings or if the user is unable to support the settings, download rates will be restricted and priority will be given to other users. This is intended to increase the retention rate of the Perfect Dark network.

Disk space requirement[edit]

It requires to share at minimum 40 GB of hard drive space, for its 'Unity' folder (a huge distributed hash table used as a distributed data store).

File system requirement[edit]

Perfect Dark requires NTFS file system instead of FAT32, because FAT32 is limited to a file size of 4 GB, while Perfect Dark can download files up to the size of 32 GB.

Features[edit]

Distributed datastore[edit]

Like other Japanese sharing software, Perfect Dark has its own proprietary P2P network called 'Unity'.

One of the biggest characteristics of Perfect Dark is its powerful search capability. By using distributed hash tables, search performance is greatly improved compared to Winny or Share, making it unnecessary to rely on the construction of node clusters. This frees users from inputting or switching cluster keywords and also enables users to search for files of different genres at the same time. This is in contrast to Winny and Share, where cluster keywords, such as 'DVDISO' or 'アニメ'/'anime' are used to specify what types of files the user is searching for. These keywords segregate the network and introduce delays when the user changes to them.

File search: tree search[edit]

The concept of 'tree search' brings about strong search ability. In addition, the flexible use of AND, OR and NOT Boolean operators helps filtering out undesirable results.

Text flow[edit]

Perfect Dark includes an original feature named 'flow': a window where text lines written by users scroll vertically. Each user can write one little message (few lines and columns), and it will be displayed to the other peers using the flow feature.

Automated update[edit]

Since version 1.02 Perfect Dark has an option to automatically update itself through its own (Unity) network.

Messages boards[edit]

Perfect dark has a simple message board feature. The boards are distributed into Unity network. The design is rudimentary.To get boards, these must be searched with the file search feature, with (for example) the Japanese keyword ボード (board).

Security[edit]

The overall structure of the Perfect Dark network broadly resembles recent versions of Freenet,^{[citation needed]} only with a heavier use of distributed hash tables.

The anonymity relies on a mixnet where traffic is forwarded according to certain probability, as well as the deniability of the distributed data storage ('Unity') which is stored and transferred in encrypted blocks while the keys are distributed separately.

Perfect Dark uses RSA (1024-bit) and AES (128-bit) to encrypt data transmitted between peers. Exchanged keys are cached for efficiency.

Published files and boards (including automatic updates from the author, where enabled) are usually signed with 160-bit ECDSA signatures. Automatic updates of the software are additionally protected with a 2048-bit RSA signature.

The author believes that initially, a layer of obscurity due to the closed-source nature of the program will frustrate attempted attacks on its anonymity, as well as deter 'free riders' and junk files degrading the network. However, the author has stated that it may become open-source in the future should an acceptable solution to these problems be found.

The Japanese security firm NetAgent is claiming (2010) that they have created software capable of deciphering encrypted information such as the IP address of the original computer uploading a file as well as the file name and other details of Perfect Dark.^[7][8]

Legal issues[edit]

• A Perfect Dark user was arrested for the first time on 27 January 2010. The user had been uploading and sharing an episode of the Japanese animation TV series Fullmetal Alchemist: Brotherhood with Perfect Dark and was charged with breach of copyright law.^[9]
• On 10 June 2010, a second user, a 43-year-old man, was arrested on the suspicion of uploading roughly one thousand copyrighted files including the Big Windup! anime series.^[10]
• On 8 October 2010, a 42-year-old woman was arrested for uploading the Mitsudomoe anime television series.^[11]

See also[edit]

References[edit]

1. ^'更新履歴'. Perfect Dark @ ウィキ.
2. ^'WineHQ – perfect dark'. appdb.winehq.org.
3. ^'perfect dark P2P – en español!'. pd.tsdx.net.ve. Archived from the original on 2012-06-21. Retrieved 2017-12-01.
4. ^'次世代P2P、perfect dark - cyber205の日記 - スラド'. srad.jp.
5. ^'ファイル共有ソフトのユーザーは引き続き減少～「ファイル共有ソフトの利用実態調査（クローリング調査）」結果～ | 活動報告 | ACCS'. www2.accsjp.or.jp.
6. ^'2018年P2P利用状況調査結果 1/2'. www.netagent.co.jp.
7. ^'404-ネットエージェント株式会社'. www.netagent.co.jp.
8. ^'P2P調査'. www.netagent.co.jp.
9. ^'Male Arrested in Japan for Uploading via Perfect Dark (Update 2)'. Anime News Network.
10. ^'2nd Man Arrested for Uploading Anime via Perfect Dark (Updated)'. Anime News Network.
11. ^'Woman Arrested for Uploading Anime via Perfect Dark'. Anime News Network.

External links[edit]

• (in English)Perfect Dark guide
• (in Japanese)Perfect Darkの使い方, user guide and node list (2015)
• (in Japanese)Perfect Dark　～The Next Generation P2P～ by 会長 (2007)
• (in Japanese)Perfect Dark Evolution (node list)
• (in Japanese)SRAD article about Perfect Dark (in Japanese) 2006
• (es) Other list, manually updated by the visitors of this web site

Perfect Dark Rom

Microsoft concluded July 23's Xbox Game Showcase by announcing Fable, Playground Games' soft reboot of a classic Xbox franchise that hasn't seen a new game in almost 10 years. While Fable's announcement is significant on its own, it was previously rumored alongside a new Perfect Dark game in late June.

Perfect Dark Comics

Now that Fable is confirmed, what does it mean for the long-rumored reboot?

What is Perfect Dark?Perfect Dark is a first-person stealth shooter for Nintendo 64 from Everwild developer Rare. At the time, it served as a spiritual follow-up to the classic Goldeneye 007. It was critically acclaimed at the time of its release and was ported to Xbox 360 in 2010. Its Microsoft-published prequel and Xbox 360 launch title Perfect Dark Zero was much more divisive.

The series has been dormant outside of the original's re-release and both Perfect Dark games' inclusion in 2015's Rare Replay. New Perfect Dark projects have been canceled because Microsoft already had popular sci-fi games like Halo and Gears. Despite those previous cancellations, many fans actually think Microsoft will bring back Perfect Dark for Xbox Series X.

Breaking down Perfect Dark Xbox Series X rumors — Alongside Fable, a reboot of Perfect Dark is one of the most heavily rumored Xbox Series X games. As far back as 2018, Xbox Insider Klobrille hinted that Perfect Dark would make its return. Over the next two years, various other leakers also claimed that Microsoft was developing a new Perfect Dark in their own lists and breakdowns.

The idea of a new Perfect Dark started to gain more traction in 2020. This started in January when Phil Spencer tweeted about Microsoft's new studio The Initiative, hinting that the team was working on a new version of an old game. In April, The Initiative had a job description referenced a game that features 'various weapons, gadgets, and a camera surveillance system,' all of which are hallmarks of a Perfect Dark game.

Perfect Dark rumors reached a fever pitch in early July 2020 when Twitter accounts were spotted for both Fable and Perfect Dark. ThePerfect Dark account was eventually outed as a fan-creation not affiliated with Microsoft, but this rumor intrinsically tied the two games as Microsoft revivals. If you remember this happening earlier in the summer and are wondering if that means Perfect Dark is definitely happening, think again. The game is still very much so unconfirmed, and it may just be wishful thinking.

Venture Beat also claimed that Perfect Dark was being rebooted in an article about the Xbox Games Showcase, though the article did claim that the game would not be revealed during the July presentation. Which is to say that it's possible that Venture Beat's claims are still accurate.

Perfect Darkness

Should Microsoft bring back its dormant franchises? While Perfect Dark was not shown off during the Xbox Games Showcase, the existence of Fable shows that Microsoft has a clear interest in revitalizing long-dormant gaming franchises. While the studio is often pigeonholed into Halo, Forza, and Gears nowadays, they have many classic franchises to choose from. The Fable reboot shows that.

Rare, in particular, has a treasure trove of franchises like Banjo-Kazooie, Conker, and Perfect Dark. If Microsoft wants to gain back some goodwill with its community and fans of these series, it'd be smart to return to them at some point like it is doing with Fable. While Microsoft has yet to officially announce any plans for Perfect Dark, these rumors and Fable's revival bodes well for Joanna Dark and co.

Perfect Dark 2020

Perfect Dark for Xbox Series X remains unconfirmed.