微信公众号开发， web 跳转微信相关（weixin://dl/privacy）（微信公众号跳转网页制作）

25-04-26 1

在这里，我们将给大家分享关于微信公众号开发，web跳转微信相关的知识，让您更了解weixin://dl/privacy的本质，同时也会涉及到如何更有效地10.BLE---安全机制之LLPrivacy、

在这里，我们将给大家分享关于微信公众号开发， web 跳转微信相关 的知识，让您更了解weixin://dl/privacy的本质，同时也会涉及到如何更有效地10.BLE--- 安全机制之 LL Privacy、App Store Connect 中的 Apple App Privacy 应该如何填写？、apps-privacy-policy、Blockchain的鱼和熊掌系列（17）Privacy Protection的内容。

本文目录一览：

微信公众号开发， web 跳转微信相关（weixin://dl/privacy）（微信公众号跳转网页制作）
10.BLE--- 安全机制之 LL Privacy
App Store Connect 中的 Apple App Privacy 应该如何填写？
apps-privacy-policy
Blockchain的鱼和熊掌系列（17）Privacy Protection

微信公众号开发， web 跳转微信相关（weixin://dl/privacy）（微信公众号跳转网页制作）

这个链接具体怎么使用，有相关参数介绍？

比如跳转之后，直接扫描指定公众号二维码。

10.BLE--- 安全机制之 LL Privacy

1.LL Privacy 机制介绍

LL Privacy 机制是白名单（white list）机制的进阶和加强。
它在白名单的基础上，将设备地址转变成 Private addresses^[2] 地址。
该方法可以降低窃得设备地址进而进行伪装的概率。

2.Resolving List

和白名单机制上的 White List 类似，如果设备需要使用 LL Privacy 机制，则需要在 Controller 端保存一个 Resolving List，其思路为：

BLE 设备把那些受信任设备的地址（这里为 Identity Address）加入到自己的白名单中，并采用合适的白名单策略。
如果设备需要使用 LL Privacy 策略，保护自己（以及对方）的地址不被窃取，则需要将自己（local）和对方（peer）的地址和加密 key 保存在一个称作 Resolving List 的列表中。
Resolving List 的每一个条目，都保存了一对 BLE 设备的 key/address 信息，其格式为：
Local IRK | Peer IRK | Peer Device Identity Address | Address Type

Local IRK，本地的 IRK，用于将本地设备的 Identity Address 转换为 Resolvable Private Address。可以为 0，表示本地地址直接使用 Identity Address；

Peer IRK，对端的 IRK，用于将对端设备的 Resolvable Private Address 解析回 Identity Address。可以为零，表示对端地址是 Identity Address；

Peer Device Identity Address、Address Type，对端设备的 Identity Address 及类型，用于和解析回的 Identity Address 进行比对。

Resolving List 是 Host 通过 HCI 命令提供给 Controller 的，Controller 的 LL 负责如下事项：
发送数据包时，如果有 AdvA 需要填充，则判断 Resolving List 是否有非 0 的 Local IRK，如果有，则使用 Local IRK 将 Identity Address 加密为 Resolvable Private Address，填充到 AdvA 中。否则，直接填充 Identity Address；
同理，如果有 InitA 需要填充，则判断 Resolving List 是否有匹配的、非 0 的 Peer IRK，如果有，则使用 Peer IRK 将对端的 Identity Address 加密为 Resolvable Private Address，填充到 InitA 中。否则，直接填充 Identity Address。
接收数据包时：如果数据包中的 AdvA 或者 InitA 为普通的 Identity Address，则直接做后续的处理；
如果它们为 Resolvable Private Address，则会遍历 Resolving List 中所有的 "IRK | Identity Address" 条目，使用 IRK 解出 Identity Address 和条目中的对比，如果匹配，则地址解析成功，可以做进一步处理。如果不匹配，且使能了白名单 / LL Privacy 策略，则会直接丢弃。
需要重点说明的是，Controller 和 Host 之间所有的事件交互（除了 Resolving List 操作之外），均使用 Identity Address。也就是说，设备地址的加密、解密、比对等操作，都是在 controller 中完成的，对上层实体（HCI 之上）是透明的。

3. 使用场景说明

3.1 设备处于广播状态（Advertising state）时

处于广播状态的 BLE 设备，根据需要可发送 ADV_IND、ADV_DIRECT_IND、ADV_NONCONN_IND 和 ADV_SCAN_IND 4 种类型的广播包，也就是说有 4 种不同的广播状态，它们的 LL privacy 策略有稍微的不同，下面分别描述。

1）ADV_IND

设备（Advertiser）发送 ADV_IND 时，其 PDU（connectable undirected advertising event PDU）有一个 AdvA 字段，该字段的填充策略为（由 controller 的 LL 执行）：

检查 Resolving List，查看是否存在非 0 的 Local IRK 条目，如果有，则使用 Local IRK 将自己的 Identity Address 加密为 Resolvable Private Addresses，并填充到 AdvA 中。否则，直接使用 Identity Address。

Advertiser 收到连接请求时，请求者的地址会包含在 PDU 的 InitA 中，该字段的解析策略为（由 controller 的 LL 执行）：

如果 InitA 是 Resolvable Private Addresses，且当前使能了地址解析功能，LL 会遍历 Resolving List 中所有的 "Peer IRK | Peer Device Identity Address | Address Type" 条目，使用 Peer IRK 解析出 Identity Address 后和 Peer Device Identity Address 做比对，如果匹配，则解析成功，再基于具体的白名单策略，觉得是否接受连接；

如果解析不成功，则无法建立连接；

如果 InitA 不是 Resolvable Private Addresses，则走正常的连接过程。

Advertiser 收到扫描请求时，对 ScanA 的处理策略，和 InitA 类似。

2）ADV_DIRECT_IND

设备（Advertiser）发送 ADV_DIRECT_IND 时，其 PDU（connectable directed advertising event PDU）包含 AdvA 和 InitA 两个地址，它们填充策略为（由 controller 的 LL 执行）：

检查 Resolving List，查看是否存在非 0 的 Local IRK 条目，如果有，则使用 Local IRK 将自己的 Identity Address 加密为 Resolvable Private Addresses，并填充到 AdvA 中。否则，直接使用 Identity Address；

检查 Resolving List，查看是否存在非 0、和 InitA 的 Identity Address 匹配的 Peer IRK 条目，如果有，则使用 Peer IRK 将 InitA 的 Identity Address 加密为 Resolvable Private Addresses，并填充到 InitA 中。否则，直接使用 Identity Address。

Advertiser 收到连接请求时，请求者的地址会包含在 PDU 的 InitA 中，该字段的解析策略为和上面 ADV_IND 类似，不再详细说明。

3）ADV_NONCONN_IND and ADV_SCAN_IND

这两个状态下，AdvA 的填充策略和上面 1）和 2）一样，不再详细说明。

当 Advertiser 收到 SCAN 请求时，对 ScanA 的处理策略，和 1）中 InitA 类似，不再详细说明。

3.2 设备处于扫描状态（Scanning state）时

处于 Scanning 状态的设备（Scanner）在接收到 Advertiser 发送的 scannable 的广播包时，需要按照 4.1 中解析 InitA 的方法，解析广播包中的 AdvA，并根据当前的白名单策略，进行过滤。

Scanner 发送 scan 请求时，需要指定 ScanA 和 AdvA 两个地址。其实 ScanA 的填充策略和 4.1 中的 AdvA 类似，不再详细说明。而 AdvA，需要和接收到的广播包的 AdvA 完全一样，不能有改动。

3.3 设备处于连接状态（Initiating state）时

处于 Initiating 状态的设备（Initiator）在接收到 Advertising 发送的 connectable 的广播包时，需要按照 4.1 中解析 InitA 的方法，解析广播包中的 AdvA，并根据当前的白名单策略，进行过滤。

同理，Initiator 发送连接请求时，需要指定 InitA 和 AdvA 两个地址。其实 InitA 的填充策略和 4.1 中的 AdvA 类似，不再详细说明。而 AdvA，需要和接收到的广播包的 AdvA 完全一样，不能有改动。

最后，Initiator 在接收到 Advertising 发送的 directed connectable 广播包时，除了要解析 AdvA，如果 InitA 是 Resolvable Private Addresses，则需要使用 Local IRK 解析 InitA。

App Store Connect 中的 Apple App Privacy 应该如何填写？

如何解决App Store Connect 中的 Apple App Privacy 应该如何填写？

我即将发布我的 ios 应用到 App Store，但我不知道我应该如何填写 App Store Connect 中的 Apple App Privacy。我在我的应用程序中使用了 admob、firebase 分析、firebase crashlytics 和 firebase 身份验证。我发现这个 website 显示了如何为 admob 填写应用隐私，但我找不到用于 firebase 分析或 firebase crashlytics 的。

您知道如何为 firebase 分析和 firebase crashlytics 填写应用隐私的网站或教程吗？或者，如果您已将应用发布到 App Store，能否告诉我您是如何为您的应用发布的？

解决方法

这取决于您打算使用哪个第三方库。例如，我汇总了您将如何在脑海中想象这个过程的屏幕截图。

从左到右；轮流你会看到这些屏幕。此外，如果您有与 Crashlytics 相关的地图功能，您应该在第三个屏幕上选择 Analytics 勾选。

Managing App Privacy Apple Document 和 Firebase Document

Google 已发布文档以帮助您了解 Apple 的应用隐私。他们描述了他们收集的内容以及原因。对于 firebase 分析检查 here 和 firebase crashlytics（和其他）检查 here

apps-privacy-policy

DayDayUp, collects, stores, and uses your personal information as a data controller in connection with and in order to provide and develop DayDayUp’s products, mobile applications, services and websites (together “Services”) according to this privacy policy (“Privacy Policy”).
For questions and information about Privacy Policy and data subject’s rights, please contact us at privacy@DayDayUp.fr
For information about our privacy practices related to data from children, please see “Special Note About Children’s Privacy” below.
All DayDayUp Services are governed by this Privacy Policy and by using or accessing a Service You give consent to the processing, use and disclosure of your data. Please do not install or use the Services if you do not agree to this Privacy Policy. DayDayUp reserves the right to modify this Privacy Policy. Your continued use of Services will signify your acceptance of the changes to this Privacy Policy.
How We Collect Your data
Likely situations when you make personal data available to DayDayUp include, but are not limited to: (i) by using DayDayUp’s mobile apps or visiting our websites, (ii) registration for Services, contests and special events; (iii) accessing Services using a third party ID, such as social networking sites or gaming services; (iv) subscribing to newsletters; (v) purchasing a product or services through DayDayUp’s online stores or within the app (or “in-app purchase”); (vi) using “tell a friend,” “email this page,” or other similar features; (vii) requesting technical support; and (viii) otherwise through use of DayDayUp Services where personal data is required for use and/or participation.
The data we process on you may include, but is not limited to: email address, device ID, IP-address, user names and passwords.
DayDayUp may supplement your data with data received from third parties in connection with demographic, advertisement, market and other analytics surveys or services.
Analytics
DayDayUp uses your information to perform its own analytics and to enable analytics provided by third parties. We use analytical information for supporting business analysis and operations, business intelligence, product development, improving products and services, personalizing content, providing advertising, and making recommendations.
DayDayUp may also use third-parties, in order to develop and analyze use of the Services.

Friends
If you choose to use DayDayUp’s “tell a friend” or a similar service about DayDayUp Services or order a gift certificate for your friend, DayDayUp may store your friend’s name and contact details that you provide to DayDayUp.
Please note that certain features of the Services may be able to connect to your social networking sites to obtain additional information about you. In such cases, DayDayUp may be able to collect certain information from your social networking profile when your social networking site permits it, and when you consent to allow your social networking site to make that information available to DayDayUp. This information may include, but is not limited to, your name, profile picture, gender, user ID, email address, your country, your language, your time zone, the organizations and links on your profile page, the names and profile pictures of your social networking site “friends” and other information you have included in your social networking site profile. DayDayUp may associate and/or combine as well as use information collected by DayDayUp and/or obtained through such social networking sites.
Disclosure and Transfer of Personal Data
Personal data may be disclosed to third parties including third parties located outside the European Union or the European Economic Area in accordance with applicable legislation and this Privacy Policy.
DayDayUp may use third parties to collect and process personal data on DayDayUp’s behalf and in according to DayDayUp’s instructions. DayDayUp is not liable for the acts and omissions of these third parties, except as provided by mandatory law.
Data Retention and Correctness
DayDayUp retains the collected data for the period necessary to fulfill the purposes outlined in this Privacy Policy unless a longer retention period is required or permitted by law. Thereafter DayDayUp deletes all aforementioned data in its possession within a reasonable timeframe. DayDayUp does not verify the correctness of personal data.
Please note that some data may be further retained if necessary to resolve disputes, enforce DayDayUp user agreements, and comply with technical and legal requirements and constraints related to the security, integrity and operation of Services.
Cookies, beacons and tracking
The Services may use “cookies” and other technologies such as pixel tags, local shared objects, hardware-based device identifiers, Operating System-based identifiers, clear GIFs and web beacons. DayDayUp treats information collected by cookies and similar technologies as non-personal data.
Cookies: A “cookie” is a small file stored by your browser when told to do so by a website. Typically websites place a number of different cookies on an end-user’s machine. Some of the cookies are “1st Party,” from the website itself, and others are “3rd party,” belonging to advertising and analytics entities or social networks. DayDayUp’s cookies do not include personal data and are typically used to quickly identify your device and to “remember” your browser during subsequent visits for purposes of functionality, preferences, and website performance. You can disable cookies or set your browser to alert you when cookies are being sent to your device; however, disabling cookies may affect your ability to use the Services.
Flash cookies & HTML5: DayDayUp may also use Flash cookies (local shared objects) and HTML5 local storage. Flash cookies are small files similar to browser cookies, but which are not stored in the browser and can also be used to remember your settings, to personalize the look and feel of the Services, or for advertising and analytics. You may prevent Flash cookies from being stored by following the instructions provided by Adobe at http://helpx.adobe.com/flash-player/kb/disable-local-shared-objects-flash.html.

Web Beacons and pixel tags: A “web beacon” or a “pixel tag” is an electronic image (often not visible to the end-user) that allows DayDayUp to count users who have visited certain pages or viewed certain advertisements. Additionally, e-mails and other electronic communications DayDayUp sends to you may contain pixel tags that enable DayDayUp to track your usage of the communication, including whether the communication was opened and/or what links were followed, if any.
Third Party Terms and Conditions
Please note that your access to and use of the Services may be subject to certain third party terms and conditions and DayDayUp is not liable for any such third parties’ use of your personal data.
Certain Services that DayDayUp may offer, such as multiplayer gaming, social networking and gaming console services, may use third party services to provide authentication for the Services with a gaming console ID, social networking ID, or gaming network account. In connection with such use, certain personally identifiable user and/or membership data may be transferred automatically to and from DayDayUp.
DayDayUp may disclose your personal data to third parties in connection with a corporate merger, consolidation, restructuring, the sale of substantially all of DayDayUp’s stock and/or assets or other corporate change, including, without limitation, during the course of any due diligence process provided, however, that this Privacy Policy shall continue to govern such personal data.
Safeguards
DayDayUp follows generally accepted industry standards and maintains reasonable safeguards to attempt to ensure the security, integrity and privacy of the information in DayDayUp’s possession.
Other
You may choose to disclose data about yourself in the course of contributing user generated content to the Services.
Any data that you disclose in any of these forums, blogs, chats or the like will become public information, and there is no expectation of privacy or confidentiality with respect to that data.
DayDayUp may store and/or transfer your personal data to its affiliates and partners in and outside of EU/EEA member states and the United States in accordance with mandatory legislation and this Privacy Policy.
Special Note about Children’s Privacy
DayDayUp does not knowingly collect personal information from children under 13 years of age. If DayDayUp learns that DayDayUp has inadvertently gathered personal data from children under 13 years of age, DayDayUp will take reasonable measures to promptly delete such personal data from DayDayUp’s records.
DayDayUp understands the need to provide extra privacy protections to users who are children. To that end, features and services such as social networking plug-ins, behaviorally targeted advertising, and collection of data for the purpose of building user profiles are not available to users under 13. DayDayUp also does not allow our third party partners who engage in such practices to access personally identifiable data from users under 13.
If you have additional questions about DayDayUp’s Privacy Practices related to children under the age of 13, please contact us at Privacy@DayDayUp.fr
Further information
This Privacy Policy is governed by French law excluding its choice of law provisions.
DayDayUp makes good faith efforts to enable you to review, update or correct your personal data in DayDayUp’s possession.
DayDayUp will need sufficient information from you to establish your identity and to verify your access request, and also to assist us in handling your request.

Blockchain的鱼和熊掌系列（17）Privacy Protection

figure 2 shows the privacy-protecting scheme for Blockchain. Most research works focus on the peers (users) privacy-protecting problems as shown above,of which a classical solution to protect users’ privacy is to providing methods for communicating through encrypted data.

Hawk. The Hawk is originally proposed and implemented in their work [Hawk: The blockchain model of cryptography and privacy-preserving smart contracts]. Since the problem of lacking transactional privacy in existing Bitcoin systems,makes all transaction data,including payee,payer,transaction amount etc,visible and exposed to publics. What the Hawk actually does is to solve such a safety issue,where it functionally serves as a security suite in Bitcoin network,and allows programmers to write smart contracts without needing to implement cryptography primitives. The underlying security model of Hawk is based on Prof. Szabo’s work[Formalizing and securing relationships on public networks].

Darkcoin. The Darkcoin [Darkcoin: PeertoPeer CryptoCurrency with Anonymous Blockchain Transactions and an Improved ProofofWork System],similar to Zcash [A blockchain currency that beat s bitcoin on privacy],is a privacy centric cryptographic currency based on Bitcoin. A problem in Bitcoin is that all transactions are traceable,resulting a high possibility for leaking user information. To solve such a problem of privacy is the goal of Darkcoin. A key component in Darkcoin is a transactional pool based on the blind signature mechanism [Blind signatures for untraceable payments]. In this transactional pool,all participants kNow nothing about which transactional output belongs to which output. So,in this way,users in Darkcoin can achieve a higher level of anonymity,and can better protect their personal information and privacy.

Cosigning. The Cosigning [Keeping authorities” honest or bust” with decentralized witness cosigning] is a protocol to protect user’s privacy on a distributed open network. In such a protocol,any individual cannot personally sign a statement in behalf of a collective will. By ensuring that,attackers who steal a specific victim’s secret keys cannot able to individually sign a group statement without exposing the statement to all members of a group for cosigning. The cosigning protocol also has been applied to Bitcoin’s applications,a typical example of which is the ByzCoin [Enhancing Bitcoin Security and Performance with Strong Consistency via Collective Signing],it is based on the cosigning protocol,reconfigures Bitcoin’s backbone,and achieves a considerable performance optimization result.

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