conceal | Conceal provides easy Android APIs for performing fast | Encryption library

 by   facebookarchive C++ Version: v2.0.1 License: Non-SPDX

kandi X-RAY | conceal Summary

kandi X-RAY | conceal Summary

conceal is a C++ library typically used in Security, Encryption applications. conceal has no bugs, it has no vulnerabilities and it has medium support. However conceal has a Non-SPDX License. You can download it from GitHub.

Conceal provides a set of Java APIs to perform cryptography on Android. It was designed to be able to encrypt large files on disk in a fast and memory efficient manner. The major target for this project is typical Android devices which run old Android versions, have low memory and slower processors. Unlike other libraries, which provide a Smorgasbord of encryption algorithms and options, Conceal prefers to abstract this choice and use sane defaults. Thus Conceal is not a general purpose crypto library, however it aims to provide useful functionality.
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            kandi-support Support

              conceal has a medium active ecosystem.
              It has 2985 star(s) with 449 fork(s). There are 175 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 27 open issues and 107 have been closed. On average issues are closed in 403 days. There are 2 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of conceal is v2.0.1

            kandi-Quality Quality

              conceal has 0 bugs and 0 code smells.

            kandi-Security Security

              conceal has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              conceal code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              conceal has a Non-SPDX License.
              Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

            kandi-Reuse Reuse

              conceal releases are available to install and integrate.
              Installation instructions, examples and code snippets are available.
              It has 4808 lines of code, 437 functions and 108 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

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            Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of conceal
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            conceal Key Features

            No Key Features are available at this moment for conceal.

            conceal Examples and Code Snippets

            No Code Snippets are available at this moment for conceal.

            Community Discussions

            QUESTION

            Chaum blind signature with blinding in JavaScript and verifying in Java
            Asked 2022-Mar-04 at 16:01

            I'm experimenting with Chaum's blind signature, and what I'm trying to do is have the blinding and un-blinding done in JavaScript, and signing and verifying in Java (with bouncy castle). For the Java side, my source is this, and for JavaScript, I found blind-signatures. I've created two small codes to play with, for the Java side:

            ...

            ANSWER

            Answered 2021-Dec-13 at 14:56

            The blind-signature library used in the NodeJS code for blind signing implements the process described here:

            No padding takes place in this process.

            In the Java code, the implementation of signing the blind message in signConcealedMessage() is functionally identical to BlindSignature.sign().
            In contrast, the verification in the Java code is incompatible with the above process because the Java code uses PSS as padding during verification.
            A compatible Java code would be for instance:

            Source https://stackoverflow.com/questions/70324926

            QUESTION

            How to change Microsoft SharePoint Data Encryption (Obfuscation) setting for GraphAPI reports?
            Asked 2022-Mar-03 at 21:56

            By default when a new SharePoint site is created and reports are requested in graph API the result is returned with corrupted/modified data. This requires updating organization settings for the data conceal. Where can I find this setting?

            ...

            ANSWER

            Answered 2022-Mar-03 at 21:56

            Login to Admin Center. Navigate to Settings >> Org Settings >> Services >> Reports, uncheck “Display concealed user, group, and site names in all reports” checkbox and save to solve the issue.

            Source https://stackoverflow.com/questions/71344281

            QUESTION

            Navigator.of(context).pop() not working properly
            Asked 2022-Feb-25 at 19:53

            I've been longing to ask this a while now but I thought of first trying to find a solution myself which apparently failed. Every time I try doing Navigator.of(context).pop() to go back to the previous page that I navigated from, I end up getting a black screen instead. I wonder what I'm doing wrong and how this can be fixed? The code and the screenshots are given below:

            This is the screen that I intend to Navigate from. The aim is to go to the Cart Screen and back. Clicking on the Add to Cart button takes us to the Cart Screen(For obvious reasons, I had to conceal everything. Apologies in advance)

            This is the Cart Screen. Clicking the back button should take us back to the previous screen.

            I get a black screen instead of navigating back to where I came from.

            The code is as follows: This is the code snippet from the screen that has the Add To Cart button on it which navigates to the Cart Screen.

            ...

            ANSWER

            Answered 2022-Feb-25 at 19:53

            Use push instead of pushReplacement. pushReplacement replaces the first screen so when you try to pop back, there's nothing there.

            Bonus Tip: You can use the BackButton widget instead of creating your own with an InkWell.

            Source https://stackoverflow.com/questions/71270894

            QUESTION

            Kinesis: "(ValidationException) when calling the PutRecord operation" error for one Webhook. However another Webhook Succeeds
            Asked 2022-Feb-20 at 04:51

            I'm trying to stream Punchh webhook JSON data through kinesis delivery stream to multiple S3 buckets but it is giving me this error. However, when I streamed Iterable webhook data, the Iterable S3 buckets are successfully filled with the data from the deliverable stream sent from the Iterable wehbook.

            Here is the error:

            An error occurred (ValidationException) when calling the PutRecord operation: 1 validation error detected: Value 'data/landing/vendor/punchh/punchh_to_dd/ex_points_reminder' at 'deliveryStreamName' failed to satisfy constraint: Member must satisfy regular expression pattern: [a-zA-Z0-9_.-]+

            Note: The S3 prefix value -in bold- that the error mentioned above is similar to the Iterable prefixes I have successfully tested .

            Here is the Punchh S3 prefix for one of the streams causing the error:

            data/landing/vendor/punchh/punchh_to_dd/ex-points-reminder/year=!{timestamp:yyyy}/month=!{timestamp:MM}/day=!{timestamp:dd}/hour=!{timestamp:HH}/dynamic

            Here is the Punch S3 stream destination (note X is used as a place holder to conceal the real address which is irrelative):

            arn:aws:firehose:us-west-2:XXXXXXXXXXXX:deliverystream/lou-punchh-ex-points-reminder-events

            Here is the Python Code for the proxy (backend) Lambda (Similar code for Punchh as Iterable) . I have several dynamic S3 buckets paired with their respective delivery streams:

            ...

            ANSWER

            Answered 2022-Feb-20 at 04:51

            As per the error message python code is passing data/landing/vendor/punchh/punchh_to_dd/ex_points_reminder value to deliveryStreamName parameter in PutRecord request. I dont think thats the name of your delivery stream. Check values for environments variable that are populating deliveryStreamName parameter

            Source https://stackoverflow.com/questions/71187854

            QUESTION

            Issue while filtering the data from a list
            Asked 2022-Jan-20 at 10:35

            I have a large list and I am trying to create multiple data frames from the same. For that I'm filtering out data in various variables. Basic structure of most of code is same and all are working fine except for one.

            This the list.

            ...

            ANSWER

            Answered 2022-Jan-20 at 10:35

            In a regular expression parentheses are special characters which are used for grouping. Hence, if you want to search for a string containing parentheses you have to escape them using \\( and \\):

            Source https://stackoverflow.com/questions/70784345

            QUESTION

            How to create a data frame from multiple xml files containing same structure?
            Asked 2021-Dec-31 at 10:26

            I have more than 1000 XML files that probably have the same structure. I want to create a database using data in all the files. I have never known how an XML file looked before yesterday. With the help of Google, I tried using the r-packages to load a single XML file in RStudio. But when I'm trying to convert that into a data frame, an error is occurring.

            This is how file looks like: File A

            ...

            ANSWER

            Answered 2021-Dec-31 at 10:26

            You cannot directly convert XML file to a dataframe. You'll need to fetch the tags and data inside those tags and then create the dataframe.

            Here's the code that will do the trick:

            Source https://stackoverflow.com/questions/70539766

            QUESTION

            some parts of my site are not responsive how do i fix it?
            Asked 2021-Dec-14 at 18:18

            i'm new and after finishing my site i realized the parts i created are not responsive is there a way to fix it without starting from scratch?

            ...

            ANSWER

            Answered 2021-Dec-14 at 18:18

            Because you are using vw in certain places, this unit takes a fixed percentage of browser size of 50vw mean 500px of 1000px screen and 50px of 100px screen, I would suggest to use rem instead also, you can go a bit advanced and use css clamp() to fix width of multiple screen at once.

            Source https://stackoverflow.com/questions/70353587

            QUESTION

            Remove Bot-Identyfing Features from Firefox WebDriver Source Code?
            Asked 2021-Nov-28 at 21:11

            One of the ways WebDriver identifies itself as a bot to external websites is by setting the webdriver-active flag to true.

            A user on SO suggested that it is possible modify Chrome Driver source code to remove all bot-identifying attributes (see this and this response).

            Is it possible to achieve a similar outcome w/ Firefox by modifying the source code of Geckodriver, Firefox WebDriver or perhaps both? I'm asking because there is currently no way to conceal WebDriver using Firefox Options without source code modification.

            If we can somehow remove bot identifying features from the source code, we can prevent WebDriver from being identified as a bot without needing to bundle TOR with Firefox.

            While there's no getting around the fact that Selenium (in its present state) identifies itself, surely we can modify source code to remove all identification similar to how it's achieved in Chrome Driver?

            ...

            ANSWER

            Answered 2021-Nov-28 at 21:11

            In the discussion Can a website detect when you are using Selenium with chromedriver? as suggested by different users to open the ChromeDriver in a Hex Editor and edit the document variables replacing the cdc_ and $wdc_ string might be possible, but achiving the same with GeckoDriver may not be possible.

            Moreover, the commands like execute_cdp_cmd() and Python libraries like selenium-stealth may not be currently supported by GeckoDriver.

            The GeckoDriver source code can be easily downloaded from mozilla / geckodriver page both in zip and tar.gz format. If you are on windows system you can unzip the downloaded file and find the the source code of different modules in the ...\geckodriver-0.30.0\src directory:

            Additionally, geckodriver is made available under the Mozilla Public License. GeckoDriver source code can also be found in mozilla-central under testing/geckodriver.

            WebDriver Specifications

            Now as per WebDriver W3C Editor's Draft:

            The webdriver-active flag is set to true when the user agent is under remote control. It is initially false.

            So there can be two possible ways to keep webdriver flag as false as:

            • Remove the readonly attribute, so can be edited runtime. (as discussed in this answer)
            • Strangle the WebDriver from emitting the signals that the user agent is under remote control.

            To me the second option looks pretty much viable as the most frequently updated tier is the second tier (Selenium WebDriver.dll and WebDriver.Support.dll modules). Since App Studio uses C# and .Net version 4.0 (before Selenium 4.1.0 (November 22, 2021)) to communicate with Selenium, you need to download the .Net 4.0 version of the Selenium modules. The current stable version being 4.1.0. Once the zip file is downloaded, extract the content to a folder and navigate to the net40 subfolder.

            Now, you can copy the WebDriver.dll and WebDriver.Support.dll files to the bin folder of the App Studio installation. e.g, C:\ibi\AppStudio82\bin and make the required changes.

            As an alternative, you can also download the NuGet, copy the .Net 4.0 content of the NuGet package into the bin folder of the App Studio installation and make the required changes.

            tl; dr

            Source https://stackoverflow.com/questions/70100400

            QUESTION

            Reference to a Structure
            Asked 2021-Nov-27 at 12:17

            I read this portion from a book called C++ Primer Plus (Page no. 400. Chapter:8 - Adventures in Functions)

            A second method is to use new to create new storage. You've already seen examples in which new creates space for a string and the function returns a pointer to that space. Here's how you chould do something similar with a referece:

            ...

            ANSWER

            Answered 2021-Nov-27 at 12:17

            As far as I know for best practices you should never dereference a pointer without initializing it

            That's not just a "best practice", but it's absolutely mandatory to not do so. You must never indirect through an uninitiliased pointer.

            How the new operator is automatically called when calling the function ?

            new operator isn't called.

            Source https://stackoverflow.com/questions/70133448

            QUESTION

            Page layout broken in React Router v6
            Asked 2021-Nov-15 at 23:49

            I was refactoring my React app after updating React Router to v6 and I got rid of the error I was getting in my routes, except now the desired layout is broken.

            I need to include a permanent toolbar and a sidebar to be visible only in some pages. I tried to follow the docs but now the layout component is placed above all the pages it should be wrapping, not just overlapping them, but actually concealing them behind it.

            The Layout component:

            ...

            ANSWER

            Answered 2021-Nov-15 at 23:49

            Layout should render an Outlet for the children Routes to be rendered into.

            Source https://stackoverflow.com/questions/69982197

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install conceal

            Use Maven Central: Available on maven central under com.facebook.conceal:conceal:2.0.1@aar as an AAR package. If you use Android Studio and select the library using the UI, make sure to change build.gradle to include the @aar suffix. Otherwise the library won't be included. It uses gradlew so it takes care of downloading Gradle and all the dependencies it needs. Output will be in /build/outputs/aar/ directory. Conceal predates Jellybean 4.3. On KitKat, Android changed the provider for cryptographic algorithms to OpenSSL. The default Cipher stream however still does not perform well. When replaced with our Cipher stream (see BetterCipherInputStream), the default implementation is competitive against Conceal. On older phones, Conceal is faster than the system provided libraries. You can run make from the openssl directory. It will download the code and copile the libraries for each architecture.
            Use Maven Central: Available on maven central under com.facebook.conceal:conceal:2.0.1@aar as an AAR package. If you use Android Studio and select the library using the UI, make sure to change build.gradle to include the @aar suffix. Otherwise the library won't be included.
            Build using gradle
            Use prebuilt binaries: http://facebook.github.io/conceal/documentation/. (linked documentation needs update)
            Starting with v1.1 recommended encryption will use a 256-bit key (instead of 128-bit). This means stronger security. You should use this default. If you need to read from an existing file, you still will need 128-bit encryption. You can use the old way of creating Crypto objects as it preserves its 128-bit behavior. Although ideally you should re-encrypt that content with a 256-bit key. Also there's an improved way of creating Entity object which is platform independent. It's strongly recommended for new encrypted items although you need to stick to the old way for already encrypted content. We recommend the use of the factory class AndroidConceal.

            Support

            If you hit an error on runtime and it says something similar to:. This happens because native code needs to refer to Java fields/methods. For doing so it uses typical JNI functions which receive the name and signature. At the same time tools like proguard trim off or rename class members in order to get smaller executables. Normally this process is run on release versions. When native code request the member, it's not present anymore. To avoid this kind of problems exceptions can be defined. You will need to configure proguard with the rules defined in proguard_annotations.pro. You can use the file as is, or you can include its content in your own proguard configuration file.
            Find more information at:

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