Adds encrypted messaging apps

6_Privacy_Respecting_Software.md

@@ -15,7 +15,7 @@ large corporations, governments and hackers from logging, storing or selling you
 
 ## Password Managers
 
-| Provider |Description |
+| Provider | Description |
 | --- | --- |
 **[BitWarden](https://bitwarden.com)**  | Free and open source, cross-platform password manager with sync
 **[1Password](https://1password.com)** | Open source, fully-featured cross-platform password manager with sync. Free for self-hosted (or $3/ month hosted)
@@ -25,7 +25,7 @@ large corporations, governments and hackers from logging, storing or selling you
 
 ## 2-Factor Authentication
 
-| Provider |Description |
+| Provider | Description |
 | --- | --- |
 **[Aegis](https://getaegis.app)**  | Free, secure and open source app for manageing 2-step verification tokens, on Android
 **[AndOTP](https://github.com/andOTP/andOTP)** | Another open source, secure authanticator app. AndOTP is well established with a strong large user base
@@ -35,7 +35,7 @@ large corporations, governments and hackers from logging, storing or selling you
 
 ## File Encryption
 
-| Provider |Description |
+| Provider | Description |
 | --- | --- |
 **[VeraCrypt](https://www.veracrypt.fr)** | VeraCrypt is open source cross-platform disk encryption software. You can use it to either encrypt a specific file or directory, or an entire disk or partition. VeraCrypt is incredibly feature-rich, with comprehnsive encryption options, yet the GUI makes it easy to use. It has a CLI version, and a portable eddition. VeraCrypt is the successor of (the now depricated) TrueCrypt.
 **[Cryptomator](https://cryptomator.org)** | Open source client-side encryption for cloud files- Cryptomator is geared towards using alongside cloud-backup solutions, and hence preserves individual file structure, so that they can be uploaded. It too is easy to use, but has fewer technical customizations for how the data is encrypted, compared with VeraCrypt. Cryptomator works on Windows, Linux and Mac- but also has excellant mobile apps.
@@ -43,6 +43,15 @@ large corporations, governments and hackers from logging, storing or selling you
 If you need to create a compressed archive, prior to encrypting your files, then [PeaZip](https://www.peazip.org/) is a great little cross-platform open source file archiver utility. It allows you to create, open, and extract RAR TAR ZIP archives.
 
 
+## Encrypted Messaging
+
+| Provider | Description |
+| --- | --- |
+**[Signal](https://signal.org/)** | Probably one of the most popular, secure private messaging apps, Signal combines strong encryption (see [Signal Protocol](https://en.wikipedia.org/wiki/Signal_Protocol)) with a simple UI and plenty of features. It's widely used across the world, and easy-to-use, functioning similar to WhatsApp - with instant messaging, read-receipts, support for media attachments and allows for high-quality voice and video calls. It's cross-platform, open-source and totally free
+**[Silence](https://silence.im/)** | If you're restricted to only sending SMS/MMS, then Silence makes it easy to encrypt messages between 2 devices. This is important since traditional text messaging is inherently insecure. It's easy-to-use, reliable and secure- but has fallen in popularity, now that internet-based messaging is often faster and more flexible
+**[OpenPGP](https://www.openpgp.org/)** | Slightly harder to use, slower, but still widley used. Note that there are known issues in the PGP standard, but still considered secure for general purpose use. Using [GnuPG](https://gnupg.org/download/index.html), you can encrypt messages following the OpenPGP standard. OpenPGP was defined by the IETF, proposed in [RFC 4880](https://tools.ietf.org/html/rfc4880) and derived from the PGP software, (created by Phil Zimmermann, now owned by [Symantec](https://www.symantec.com/products/encryption)). There have been vulnrabilities found in the OpenPGP and S/MIME, defined in [EFAIL](https://efail.de/), so it is often better to use an encrypted messaging or email app instead.
+
+
 ## Virtual Private Networks
 
 VPNs are good for getting round censorship, increasing protection on public WiFi, obscuring your IP address, and reducing what data your ISP can log. But for the most anonymity, you should use [Tor](https://www.torproject.org/).
@@ -65,7 +74,7 @@ For a full-comparison, see: [thatoneprivacysite.net](https://thatoneprivacysite.
 
 The following browser add-ons give you better controll over what content is able to be loaded and executed while your browsing.
 
-| Provider |Description |
+| Provider | Description |
 | --- | --- |
 **[Privacy Badger](https://www.eff.org/privacybadger)** | Blocks invisible trackers, in order to stop advertisers and other third-parties from secretly tracking where you go and what pages you look at. **Download**: [Chrome][privacy-badger-chrome] \ [Firefox][privacy-badger-firefox]
 **[HTTPS Everywhere](https://eff.org/https-everywhere)** | Forces sites to load in HTTPS, in order to encrypt your communications with websites, making your browsing more secure. **Download**: [Chrome][https-everywhere-chrome] \ [Firefox][https-everywhere-firefox]
@@ -79,7 +88,7 @@ The following browser add-ons give you better controll over what content is able
 
 
 ## Mobile Apps
-| Provider |Description |
+| Provider | Description |
 | --- | --- |
 **[Orbot]** | System-wide Tor proxy, which encrypts your connection through multiple nodes. You can also use it alongside [Tor Browser] to access .onion sites
 **[NetGaurd]** | A firewall app for Android, which does not require root. NetGuard provides simple and advanced ways to block access to the internet, where applications and addresses can individually be allowed or denied access to your Wi-Fi and/or mobile connection