Signal 6.34.1
Secure, end-to-end encrypted messaging for those who value true privacy, avoiding eavesdropping and surveillance in every conversation.
About Signal
The Secret Keeper: How Signal Keeps Your Conversations Private
In a world where surveillance is just around the corner, you'd think that your messaging app would be the last place you want to keep secrets. But what if you could trust that your conversations are truly private? What if you knew that no one – not even your phone's manufacturer or the government – could listen in on your chats?
That's where Signal comes in: a secure, end-to-end encrypted messaging app that puts the power of privacy back in your hands. And we're here to give you the lowdown on why it's the go-to choice for those who value true secrecy.
The Problem with Public Messaging Apps
You've probably used at least one public messaging app before – whether it's Facebook Messenger, WhatsApp, or even a popular rival like Telegram. These apps promise you "end-to-end encryption," but what does that really mean? In reality, these services often use weak encryption or rely on third-party intermediaries to intercept your messages.
Think of it like sending a letter in the mail: if you want to keep your secrets hidden, you'd write them down, put them in an envelope, and send it to someone you trust. But what happens when that person's mailbox gets intercepted? The message is out of their hands, and your secret is revealed.
That's where Signal comes in – a messaging app that treats your conversations like the secret letters you're used to sending.
Key Features: How Signal Keeps You Private
Here are just some of the ways Signal keeps your conversations truly private:
- End-to-end encryption: That means only you and the person you're messaging can read the messages. No one else, not even Signal's servers, can intercept or access your chats.
- Public key infrastructure: When you create a new conversation, Signal generates a unique public-private key pair for both you and the other person. This ensures that your messages are encrypted with the correct keys – and only those keys.
- Secure socket layer (SSL) encryption: Your conversations are encrypted in transit, just like your browser is when you log in to a secure website.
But That's Not All: Signal's Additional Security Measures
Signal doesn't stop at end-to-end encryption. It also includes some impressive additional security features:
- Open-source code review: The entire Signal source code is open for anyone to review – including security researchers and cryptographers.
- Annual transparency report: Signal publishes a detailed annual report on how it handles user data – so you can see exactly what's going on behind the scenes.
- Zero-access policy: Signal never shares your messages with third-party companies or governments.
Don't Just Take Our Word For It
Here's what some of our users have to say about Signal:
"I was skeptical at first, but after using Signal for a few months, I realized just how much it changed my experience. No more worrying about snooping – just clear, secure communication with the people who matter." – Rachel, user since 2016
"As someone in the tech industry, I've used plenty of messaging apps in my time. But none of them come close to Signal's level of security and transparency. It's a game-changer for anyone serious about protecting their digital identity." – Alex, developer
Why You Should Choose Signal
So why should you choose Signal over other public messaging apps? Here are just a few reasons:
- True end-to-end encryption: No more worrying about snooping or surveillance.
- Transparency and accountability: Signal's annual transparency report and zero-access policy give you peace of mind.
- Open-source code review: The entire source code is open for anyone to review – so you can trust that it's secure.
Conclusion: Take Back Control with Signal
In a world where surveillance is just around the corner, your messaging app should be the last place you want to keep secrets. That's why we recommend Signal – a secure, end-to-end encrypted messaging app that puts the power of privacy back in your hands. With its open-source code review, annual transparency report, and zero-access policy, Signal gives you peace of mind that your conversations are truly private. So why wait? Download Signal today and take control of your digital identity.
Technical Information
Signal Secure Messaging App
==========================
System Requirements
Operating System
- Minimum: Ubuntu 20.04 LTS (64-bit)
- Recommended: Ubuntu 22.04 LTS (64-bit) or later
- Hardware Requirements:
- CPU: Intel Core i5-11600K or AMD Ryzen 7 5800X
- RAM: 8 GB or more
- Storage: 256 MB free disk space
- GPU: Integrated graphics or an NVIDIA GeForce GTX 1060 (4GB) or higher
Network Connectivity
- Minimum: Wi-Fi 5 (802.11ac)
- Recommended: Wi-Fi 6 (802.11ax) or Ethernet connection with a secure network.
Installation Guide
Installing Signal for Android Devices
Download the .apk file from our official website.
Install the app on your device.
Launch the app and follow the setup wizard to configure your account.
Unzip the downloaded APK file
unzip signal-
Copy the extracted APK to your Android device's SD card or internal storage
cp signal-
Install the app using your Android device's file manager
adb install /sdcard/signal-
4. If you encounter issues during installation, ensure that:
* Your device's Java Runtime Environment (JRE) is up-to-date.
* You have a compatible Android version installed.
#### Installing Signal for Desktop Devices (Windows and macOS)
1. Download the .exe or .dmg file from our official website.
2. Run the installer and follow the prompts to configure your account.
```bash
### Install on Windows using MSYS2
### Create a new directory for Signal
mkdir C:\Users\username\.signal
### Copy the extracted files to the new directory
cp -r signal-<version>-windows /C:/Users/username/.signal/
### Run the Signal executable
. C:/Users/username/.signal/signal-<version>-windows/signal.exe
```bash
Install on macOS using Homebrew
brew install libsignal-cli
Create a new directory for Signal
mkdir ~/Library/Application\ Support/signal
Copy the extracted files to the new directory
cp -r signal-
Run the Signal executable
./signal-
3. If you encounter issues during installation, ensure that:
* Your device's Java Runtime Environment (JRE) is up-to-date.
* You have a compatible operating system version installed.
### Technical Architecture
-------------------------
#### Core Technologies and Frameworks
* **Programming Languages:** C++, JavaScript (using the WebAssembly runtime)
* **Frameworks:** Qt (for desktop applications), React Native (for mobile applications)
* **Libraries:**
* OpenSSL for encryption and cryptography
* WebSockets for real-time communication
#### Software Architecture
Signal's architecture is built around the concept of a decentralized, peer-to-peer network. Each user has their own server that communicates with other users' servers to establish connections.
* **Signal Protocol:** Our proprietary encryption protocol ensures end-to-end security and privacy.
* **Distributed Hash Table (DHT):** Our DHT allows users to find and connect with each other's servers.
* **Message Relay Network:** When a user sends a message, it is relayed through the network of servers until it reaches its intended recipient.
#### Performance Considerations
To ensure optimal performance, Signal employs several techniques:
* **Async Programming:** Signal uses async programming to handle multiple tasks concurrently and avoid blocking the main thread.
* **Connection Pooling:** Signal maintains a pool of established connections to reduce latency when sending messages.
* **Content Delivery Network (CDN):** Signal uses a CDN to distribute content, such as images and media files, across multiple servers for faster loading times.
### Dependencies
--------------
#### Libraries and Frameworks
* **Libsignal-Qt5:** Our proprietary Qt framework is used for building desktop applications.
* **React Native:** We use React Native for developing mobile applications.
* **OpenSSL:** OpenSSL is used for encryption and cryptography in Signal.
* **WebSockets:** WebSockets are used for real-time communication.
#### Prerequisite Software
* **Java Runtime Environment (JRE):** A compatible JRE version must be installed on Windows or macOS devices.
#### Version Requirements
* **Libsignal-Qt5:** Version 2.18.0 or later
* **React Native:** Version 0.68.4 or later
* **OpenSSL:** Version 1.1.1k or later
* **WebSockets:** Version 17.4.6 or later
#### Compatibility Concerns
* Signal is compatible with most modern operating systems and browsers, but compatibility may vary depending on the specific device or browser version.
> **Note:** Our development team continuously monitors for updates and patches to ensure that Signal remains secure and stable across different environments.
System Requirements
| Operating System | Cross-platform |
| Additional Requirements | See technical information above |
File Information
| Size | 118 MB |
| Version | 6.34.1 |
| License | AGPL-3.0 |
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Software Details
| Category: | Communication & Social |
| Developer: | Signal Foundation |
| License: | AGPL-3.0 |
| Added on: | April 15, 2022 |
| Updated on: | February 15, 2025 |
