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| form = Slide | type = Smartphone | size = H H (opened) W D | weight = | rear_camera = 18 megapixels, 2160p video capture, phase detection autofocus, OIS | front_camera = 2 megapixels, 720p video capture | connectivity = | website = }} The BlackBerry Priv is a slider smartphone developed by BlackBerry Limited. Following a series of leaks, it was officially announced by BlackBerry CEO John Chen on September 25, 2015, with pre-orders opening on October 23, 2015 for a release on November 6, 2015. The Priv is the first BlackBerry-branded smartphone that does not run the company's proprietary BlackBerry OS or BlackBerry 10 (BB10) platforms. Instead it runs a version of Android customized with features inspired by those on BlackBerry phones and with security enhancements. With its use of Android—a platform that has cannibalized BlackBerry's early dominance in the smartphone industry—the company sought to leverage access to the larger number of Android software available through the Google Play Store (as opposed to BlackBerry 10 devices, which were limited to native BB10 apps from BlackBerry World and Android apps from the third-party Amazon Appstore running in a compatibility subsystem), in combination with a physical keyboard and privacy-focused features.〔 == Development == While BlackBerry was dominant in the early smartphone market, partially due to a large market share within the enterprise and governmental markets, the company had struggled in recent years due to the dominance of Apple Inc. and its iPhone line, and Android devices—primarily by Samsung Electronics. By June 2015, the company's market share in the U.S. consumer market had fallen to 1.2%. Facing a struggling ecosystem for native, third-party software on BlackBerry 10, BlackBerry added a compatibility layer for Android software to the OS, and allowed developers to repackage their Android apps for distribution on BlackBerry World. Later versions added the ability for users to manually install Android app packages. Beginning with the BlackBerry Passport, Amazon Appstore was bundled with BlackBerry 10 to provide an additional source of third-party Android software.〔(【引用サイトリンク】url=http://www.pcmag.com/article2/0,2817,2414928,00.asp )〕〔(【引用サイトリンク】url=http://www.pcmag.com/article2/0,2817,2454097,00.asp )〕〔(【引用サイトリンク】url=http://www.theverge.com/2014/6/18/5820472/blackberry-phones-getting-amazon-appstore-apps-in-bb10-3 )〕 BlackBerry CEO John S. Chen hoped that Amazon's own smartphone, the Fire Phone, would bolster the adoption of the Amazon store and attract more major developers to it, and in turn, BlackBerry's ecosystem. However, the Fire Phone was a commercial failure, which led to BlackBerry's decision to develop an Android phone of its own. In early 2014, BlackBerry's device head Ron Louks proposed that the company construct an Android device. Company officials, including Chen, showed concerns over the project, as they believed the platform was not secure enough. However, Louks gained support for the project after outlining plans for hardware-based security.〔 At Mobile World Congress 2015, BlackBerry's device head Ron Louks briefly presented a non-functioning prototype of a new, BlackBerry 10 phone that featured a sliding keyboard and a screen curved across both sides, similar to the Samsung Galaxy S6 Edge that was unveiled during the same convention.〔(【引用サイトリンク】url=http://www.bbc.com/news/technology-31645426 )〕〔(【引用サイトリンク】url=http://www.gsmarena.com/blackberry_teased_a_curved_screen_slider_at_mwc_2015-news-11404.php )〕 In July 2015, new images of the curved device leaked under the codename "Venice"; unlike the version presented at MWC, it was now shown to be running Android 5.0 "Lollipop" rather than BlackBerry 10.〔(【引用サイトリンク】url=http://www.zdnet.com/article/blackberry-venice-may-be-the-companys-first-android-slider/ )〕 Information about the device's software leaked in August 2015, showing a "stock" Android experience augmented with ports of features and apps from BB10, such as BlackBerry Hub.〔(【引用サイトリンク】url=http://www.engadget.com/2015/08/23/blackberry-venice-software-leak/ )〕 In response to the leaks, Chen officially confirmed during a September 2015 earnings call that BlackBerry would release a high-end Android-based device, now known as the Priv (standing for both "privilege" and "privacy"), in late 2015. Chen felt that the decision to produce an Android phone was to help BlackBerry's device business sustain itself, saying that "we have some really committed diehards. I respect that there's a lot of heritage here, a lot of pride. If the math doesn't add up, the math doesn't add up. We could keep the pride and die hungry or we can eat well and not so proud, maybe. So I chose to eat well. It’s good for the company to continue to have a shot at building handsets."〔 He also argued that the decision was meant to "() advantage of what the industry can offer", whilst continuing to leverage BlackBerry's "core strength".〔 BlackBerry touts certain security enhancements made to the build of Android OS bundled with the Priv, which include utilizing features of its SoC to embed unchangeable cryptographic keys in the device hardware which are used to validate critical boot components, thus establishing a "root of trust" designed to foil attempts to tamper with the OS.〔(【引用サイトリンク】url=https://www.qualcomm.com/products/snapdragon/security )〕〔(【引用サイトリンク】url=http://infocenter.arm.com/help/topic/com.arm.doc.prd29-genc-009492c/CACGCHFE.html )〕 Additionally, kernel security enhancements are mentioned. (Provided by grsecurity)〔(【引用サイトリンク】url=http://www.androidauthority.com/blackberry-venice-rumors-release-date-price-specs-features-638396/ )〕 BlackBerry also touts the fact that storage encryption is enabled by default on the Priv, as well as a general company commitment to timely patch releases for known Android security vulnerabilities, subject to carrier constraints in some cases.〔(【引用サイトリンク】url=https://help.blackberry.com/en/bes12/12.3/security/kja1444235374663.html )〕〔(【引用サイトリンク】url=http://blogs.blackberry.com/2015/11/managing-android-security-patching-for-priv/ )〕 (Though with the exception of the particular hardened kernel, most of these practices are either becoming common in late 2015 or will be required of any devices in the Priv's class that ship with Android Marshmallow (several of which are already on the market), due to new Google directives.)〔(【引用サイトリンク】url=http://www.tomshardware.com/news/marshmallow-encryption-fingerprints-verified-boot,30369.html )〕〔(【引用サイトリンク】url=http://www.cio.com/article/2995434/google-makes-full-disk-encryption-and-secure-boot-mandatory-for-some-android-60-devices.html )〕 BlackBerry 10 devices will continue to co-exist alongside the Priv; BlackBerry COO Marty Beard explained that BlackBerry 10 is able to meet "very high-end security needs" that cannot currently be met by Android, while Chen reported that the platform has seen adoption in enterprise and governmental markets. Chen stated that he would consider dropping BlackBerry 10 if his company were able to port all of its security features to Android. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「BlackBerry Priv」の詳細全文を読む スポンサード リンク
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