Xamarin.Essentials
OpenSSL
Xamarin.Essentials | OpenSSL | |
---|---|---|
8 | 150 | |
1,526 | 24,186 | |
-0.3% | 0.8% | |
5.8 | 9.9 | |
2 days ago | 7 days ago | |
C# | C | |
GNU General Public License v3.0 or later | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Xamarin.Essentials
- Xamarin Essentials MediaPicker Android 13 file permissions error
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.NET MAUI iOS Camera Photos Rotated bug fix
This one was one of the most annoying bugs in MAUI, and I solved it with this workaround taken from IeuanWalker on this thread.
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.NET Maui w/ ASP.NET Core backend, Web Authenticator integration help
This behavior is by design as it enables SSO with web identities but can be problematic in situations like this. Unfortunately, this kind of sign-out isn't a well-supported scenario, but you can read a good discussion on GitHub about it here: https://github.com/xamarin/Essentials/issues/1223.
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Can anyone clarify what this ‘Pegasus API’ is? Is this Norman on iPhone 11?
I don't know where you're seeing "xamarin/Essentials", but that's a repo for code used in writing cross-platform mobile applications. That message refers to this issue: https://github.com/xamarin/Essentials/pull/1457. It's something that was fixed in the project 7 months ago.
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Using AWS Cognito with Xamarin Forms
First, add the Xamarin.Essentials NuGet Package to your projects. If you're using MVVM (Like we're doing in this example), you'll ideally want to install the Xamarin.Essentials.Interfaces NuGet Package
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[Help] How to implement social media authentication on server side ASP.NET
In the guide they have a link to a sample controller which does this, so I borrowed the code from it and ended up with this authentication controller method:
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Generate your first Xamarin application with JHipster.NET
Xamarin.Essential >=1.5.3
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Open multiple images from Gallery with Xamarin.Forms on Android
Fortunately for us Xamarin developers, the Xamarin team and the community have created the Xamarin Essentials library and one of its utilities is the MediaPicker, which abstracts from you the logic for taking a picture with the camera or getting an image from the storage. You can read the documentation for the Media picker here.
OpenSSL
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RVM Ruby 2.6.0 — built with custom openssl version on Ubuntu 22.04
ENV OPENSSL_PREFIX=/opt/openssl ENV SSL_CERT_FILE=/etc/ssl/certs/ca-certificates.crt WORKDIR /tmp RUN git clone --branch OpenSSL_1_0_2n https://github.com/openssl/openssl.git RUN cd openssl RUN ./config shared --prefix=$OPENSSL_PREFIX --openssldir=$OPENSSL_PREFIX/ssl RUN make RUN make install RUN rvm install 2.6.0 -C --with-openssl-dir=$OPENSSL_PREFIX ENV PATH /usr/local/rvm/bin:$PATH RUN rvm --default use ruby-2.6.0 ENV PATH /usr/local/rvm/bin:/usr/local/rvm/rubies/ruby-2.6.0/bin:$PATH ENV GEM_HOME /usr/local/rvm/rubies/ruby-2.6.0/lib/ruby/gems/2.6.0
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Heartbleed and XZ Backdoor Learnings: Open Source Infrastructure Can Be Improved Efficiently With Moderate Funding
Today, April 7th, 2024, marks the 10-year anniversary since CVE-2014-0160 was published. This security vulnerability known as "Heartbleed" was a flaw in the OpenSSL cryptography software, the most popular option to implement Transport Layer Security (TLS). In more layman's terms, if you type https:// in your browser address bar, chances are high that you are interacting with OpenSSL.
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Ask HN: How does the xz backdoor replace RSA_public_decrypt?
At this point I pretty much understand the entire process on how the xz backdoor came to be: its execution stages, extraction from binary "test" files etc. But one thing puzzles me: how can the ifunc mechanism be used to replace something like RSA_public_decrypt? Granted this probably stems from my lack of understanding of ifunc, but I was under the impression that in order for the ifunc mechanism to work in your code, you have to explicitly mark specific function with multiple implementations with __attribute__ ((ifunc ("the_resolver_function"))). Looking at the source code of the RSA function in question, ifunc attribute isn't present:
https://github.com/openssl/openssl/blob/master/crypto/rsa/rsa_crpt.c#L51
So how does the backdoor actually replace the call? Does this means that the ifunc mechanism can be used to override pretty much anything on the system?
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Use of HTTPS Resource Records
OpenSSL and Go crypt/tls has no support yet, so none of the webservers that depend on them support it. Apache, Nginx, and Caddy, they all need upstream ECH support first.
- https://github.com/openssl/openssl/issues/7482
- https://github.com/openssl/openssl/pull/22938
- https://github.com/golang/go/issues/63369
- openssl-3.2.0 released
- Large performance degradation in OpenSSL 3
- OpenSSL 3.2 Alpha 2
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Encrypted Client Hello – the last puzzle piece to privacy
If I'm understanding the draft correctly, I think the webserver you're hosting your sites on would need it implemented as it requires private keys and ECH configuration. In the example of nginx since it uses openssl, openssl would need to implement it. I found an issue on their Github but it's still open: https://github.com/openssl/openssl/issues/7482
- eBPF Practical Tutorial: Capturing SSL/TLS Plain Text Data Using uprobe
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OpenSSL Versions... whats the plan here
I confirmed that the systm was on 1.1.1f with openssl version command. Hmm...... I check the openssl version in the repo with apt list... LOL package names wernt helpful. finally went to the repo pages and found that its still on 1.1.1f, https://launchpad.net/ubuntu/+source/openssl. Meenwhile I looked up the version history on https://www.openssl.org/ and saw that 1.1.1v was released at the beginning of this month... ok. I can understand it it was out less then 30 days. I looked up when f came out, end of MARCH 2020. NEARLY 3-1/2 YEARS
What are some alternatives?
AutoMapper - A convention-based object-object mapper in .NET.
GnuTLS - GnuTLS
Telegram.Bot - .NET Client for Telegram Bot API
Crypto++ - free C++ class library of cryptographic schemes
FFImageLoading - Fast & Furious Image Loading - Image loading, caching & transforming library for Xamarin and Windows
mbedTLS - An open source, portable, easy to use, readable and flexible TLS library, and reference implementation of the PSA Cryptography API. Releases are on a varying cadence, typically around 3 - 6 months between releases.
Hot Chocolate - Welcome to the home of the Hot Chocolate GraphQL server for .NET, the Strawberry Shake GraphQL client for .NET and Banana Cake Pop the awesome Monaco based GraphQL IDE.
libsodium - A modern, portable, easy to use crypto library.
GraphQL for .NET - GraphQL for .NET
LibreSSL - LibreSSL Portable itself. This includes the build scaffold and compatibility layer that builds portable LibreSSL from the OpenBSD source code. Pull requests or patches sent to [email protected] are welcome.
cryptocompare-api - An async-based CryptoCompare API client library for .NET and .NET Core
cfssl - CFSSL: Cloudflare's PKI and TLS toolkit