Open Source Linux Security Software - Page 9

Security Software for Linux

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  • 1

    IBM's TPM 2.0 TSS

    IBM's TPM 2.0 TSS

    This is a user space TSS for TPM 2.0. It implements the functionality equivalent to (but not API compatible with) the TCG TSS working group's ESAPI, SAPI, and TCTI API's (and perhaps more) but with a hopefully simpler interface. It comes with over 110 "TPM tools" samples that can be used for scripted apps, rapid prototyping, education, and debugging. It also comes with a web based TPM interface, suitable for a demo to an audience that is unfamiliar with TCG technology. It is also useful for basic TPM management. See the below link for operating system, platform, and hardware support. See the companion IBM TPM 2.0 at https://sourceforge.net/projects/ibmswtpm2/ and attestation at projects/ibmtpm2acs I welcome (1) bug reports, (2) documentation requests, (3) suggestions for ECC tests, and (4) requests for features for which you have an immediate need. See the wiki for additional support - additions to the documentation.
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    Downloads: 89 This Week
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  • 2
    Open source DKIM library, MTA filter implementation and associated tools.
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    Downloads: 91 This Week
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  • 3
    Cryptomator

    Cryptomator

    Multi-platform transparent client-side encryption for your cloud files

    Cryptomator is a free and open source project that offers multi-platform, transparent client side encryption of your files in the cloud. It works with just about any cloud storage service; is totally transparent so you can work with your files how you normally would; and secure with a 256-bit key length AES encryption. It’s also simple and easy to use with no need for different accounts, key management, cloud access grants or cipher configurations.
    Downloads: 17 This Week
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  • 4
    Maltrail

    Maltrail

    Malicious traffic detection system

    Maltrail is a malicious traffic detection system, utilizing publicly available (black)lists containing malicious and/or generally suspicious trails, along with static trails compiled from various AV reports and custom user-defined lists, where trail can be anything from domain name, URL, IP address (e.g. 185.130.5.231 for the known attacker) or HTTP User-Agent header value (e.g. sqlmap for automatic SQL injection and database takeover tool). Also, it uses (optional) advanced heuristic mechanisms that can help in the discovery of unknown threats (e.g. new malware). Sensor(s) is a standalone component running on the monitoring node (e.g. Linux platform connected passively to the SPAN/mirroring port or transparently inline on a Linux bridge) or at the standalone machine (e.g. Honeypot) where it "monitors" the passing Traffic for blacklisted items/trails (i.e. domain names, URLs and/or IPs).
    Downloads: 17 This Week
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  • 5
    An iptables based firewall for systems running the Linux 2.4 or later kernel. Very flexible configuration allows the firewall to be used in a wide variety of firewall/gateway/router and VPN environments.
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    Downloads: 127 This Week
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  • 6
    ccrypt is a command-line tool for encrypting and decrypting files and streams. It provides strong encryption based on the Rijndael cipher, a version of which is also used in the Advanced Encryption Standard.
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    Downloads: 150 This Week
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  • 7
    AWS Encryption SDK for Java
    The AWS Encryption SDK is a client-side encryption library designed to make it easy for everyone to encrypt and decrypt data using industry standards and best practices. It enables you to focus on the core functionality of your application, rather than on how to best encrypt and decrypt your data. The AWS Encryption SDK is provided free of charge under the Apache 2.0 license. With the AWS Encryption SDK, you define a master key provider (Java and Python) or a keyring (C, C#/.NET, and JavaScript) that determines which wrapping keys you use to protect your data. Then you encrypt and decrypt your data using straightforward methods provided by the AWS Encryption SDK. The AWS Encryption SDK does the rest. Without the AWS Encryption SDK, you might spend more effort on building an encryption solution than on the core functionality of your application. By default, the AWS Encryption SDK generates a unique data key for each data object that it encrypts.
    Downloads: 16 This Week
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  • 8
    Docker Scout CLI

    Docker Scout CLI

    Docker Scout CLI

    Designed to identify security issues, outdated packages, and potential compliance problems within container images, Docker Scout surfaces dependency vulnerabilities so you're protected. Docker Scout enhances your development process with detailed image analysis and proactive remediation tools. It integrates seamlessly with Docker Desktop and Docker Hub to improve your security and efficiency. Docker Scout’s local vulnerability analysis scans your images for potential security issues before they reach production. By detecting vulnerabilities early, it helps you ensure safer deployments and reduce the risk of security breaches in your applications.
    Downloads: 16 This Week
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  • 9
    GHunt

    GHunt

    Offensive Google framework

    GHunt (v2) is an offensive Google framework, designed to evolve efficiently. It's currently focused on OSINT, but any use related with Google is possible. It will automatically use venvs to avoid dependency conflicts with other projects. First, launch the listener by doing ghunt login and choose between 1 of the 2 first methods. Put GHunt on listening mode (currently not compatible with docker) Paste base64-encoded cookies. Enter manually all cookies. The development of this extension has followed Firefox guidelines to use the Promise-based WebExtension/BrowserExt API being standardized by the W3 Browser Extensions group, and is using webextension-polyfill to provide cross-browser compatibility with no changes.
    Downloads: 16 This Week
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  • 10
    NanoClaw

    NanoClaw

    A lightweight alternative to Clawdbot / OpenClaw

    Nanoclaw is a lightweight, security-focused personal agent runtime designed as a slimmer alternative to larger “personal assistant” agent stacks, with an emphasis on being easy to audit and safe by default. It runs agent execution inside Apple containers to provide strong isolation boundaries, so individual chats and actions can be sandboxed with tighter filesystem and process separation than a typical single-process bot. The project connects directly to WhatsApp, letting you deploy an assistant that can chat in a familiar interface while still supporting real agent behaviors instead of simple call-and-response prompts. It includes memory so the assistant can retain important context across interactions, enabling more consistent follow-through on ongoing tasks. It also supports scheduled jobs, making it suitable for recurring reminders, periodic automations, and timed workflows without needing an external orchestrator.
    Downloads: 16 This Week
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  • 11
    Notesnook

    Notesnook

    A fully open source & end-to-end encrypted note taking alternative

    Notesnook makes it impossible for anyone to spy on your notes. Unlike Evernote and other note taking apps, your data is private, not open for everyone to see. Ditch other note taking apps that don't care about your data privacy. With app lock and private notes vault, your personal diary & journal are always safe. Worried that your friend will read your private notes? Notesnook fixes that by having an app lock built-in. Use a pin or biometrics to protect your notes. Protect your online journal or personal diary with an extra layer of security. Your notes vault is a super secure way to store your passwords, credentials & other secrets. Free or Pro, you get the same level of privacy. Making privacy a paid feature means only the privileged few deserve it but privacy is your right. And rights don't have a price tag, or do they? To verify that your notes are actually encrypted (and we aren't just lying), you can use our open source tool, Vericrypt.
    Downloads: 16 This Week
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  • 12
    Zen Linux

    Zen Linux

    Simple, free and efficient ad-blocker and privacy guard

    Zen is an open-source system-wide ad-blocker and privacy guard for Windows, macOS, and Linux. It works by setting up a proxy that intercepts HTTP requests from all applications and blocks those serving ads, tracking scripts that monitor your behavior, malware, and other unwanted content. By operating at the system level, Zen can protect against threats that browser extensions cannot, such as trackers embedded in desktop applications and operating system components. Zen comes with many pre-installed filters but also allows you to easily add host files and EasyList-style filters, enabling you to tailor your protection to your specific needs.
    Downloads: 16 This Week
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  • 13
    libsodium

    libsodium

    A modern, portable, easy to use crypto library

    libsodium is a modern, portable, and easy-to-use cryptographic library that serves as an API-compatible fork of NaCl. Consistent behavior and formats across supported platforms. It enhances the original design with build and portability improvements, making it widely deployable across platforms for secure encryption, signatures, hashing, and key derivation. Digital signature creation and verification support. Adds extended cryptographic primitives like BLAKE2 and ChaCha20-Poly1305 beyond NaCl.
    Downloads: 16 This Week
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  • 14
    phpseclib

    phpseclib

    PHP secure communications library

    phpseclib is designed to be ultra-portable. The 3.0 version works on PHP 5.6+ and doesn't require any extensions. For purposes of speed, OpenSSL, GMP, libsodium or mcrypt are used, if they're available, but they are not required. phpseclib is designed to be fully interoperable with standardized cryptography libraries and protocols. MIT-licensed pure-PHP implementations of SSH-2, SFTP, X.509, an arbitrary-precision integer arithmetic library, Ed25519 / Ed449 / Curve25519 / Curve449, ECDSA / ECDH (with support for 66 curves), RSA (PKCS#1 v2.2 compliant), DSA / DH, DES / 3DES / RC4 / Rijndael / AES / Blowfish / Twofish / Salsa20 / ChaCha20, GCM / Poly1305. The only requirement that phpseclib 3.0 has is that you must be using PHP 5.6+. Using phpseclib2_compat will actually bring a few enhancements to your dependency.
    Downloads: 16 This Week
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  • 15
    ettercap
    Ettercap is a multipurpose sniffer/interceptor/logger for switched LAN. It supports active and passive dissection of many protocols (even ciphered ones) and includes many feature for network and host analysis. Development has been moved to GitHub, https://github.com/Ettercap/ettercap
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    Downloads: 71 This Week
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  • 16
    SSHTOOLS

    SSHTOOLS

    Java SSH API

    This project now hosts the third-generation of Java SSH API, Maverick Synergy. This API builds on the Maverick Legacy commercial APIs and delivers a new API in a unified client/server framework. This API is available to the community under the LGPL open source license. This update includes ed25519 support, support for the new OpenSSH private key file format and stronger key exchange algorithms. The project continues to host both the original API and legacy applications created around it, however, these are now considered deprecated and we do not recommend their use in anyway.
    Downloads: 70 This Week
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  • 17
    AKHQ

    AKHQ

    Kafka GUI for Apache Kafka to manage topics, topics data, etc.

    Kafka GUI for Apache Kafka to manage topics, topics data, consumers group, schema registry, connect and more. Enabling your teams to search and explore data in a unified console, while supporting its administration and integration within your ecosystem. Multi-Cluster vision into a central console, available in Multi-Cloud environments. Enabling users to access, search and get insights from your topics, including Live Tail. Allowing to manage your topics, consumer groups, cluster configurations, users and ACLs. Compatibility with LDAP, RBAC, Schema Registry, Kafka Connect and more.
    Downloads: 15 This Week
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  • 18
    BloodHound

    BloodHound

    Six Degrees of Domain Admin

    BloodHound is a single-page Javascript web application, built on top of Linkurious, compiled with Electron, with a Neo4j database fed by a C# data collector. BloodHound uses graph theory to reveal the hidden and often unintended relationships within an Active Directory or Azure environment. Attackers can use BloodHound to easily identify highly complex attack paths that would otherwise be impossible to quickly identify. Defenders can use BloodHound to identify and eliminate those same attack paths. Both blue and red teams can use BloodHound to easily gain a deeper understanding of privilege relationships in an Active Directory or Azure environment. BloodHound Enterprise is an Attack Path Management solution that continuously maps and quantifies Active Directory Attack Paths. You can remove millions, even billions of Attack Paths within your existing architecture and eliminate the attacker’s easiest, most reliable, and most attractive techniques.
    Downloads: 15 This Week
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  • 19
    GnuPG

    GnuPG

    Complete and free implementation of the OpenPGP standard

    GnuPG (GNU Privacy Guard) is a widely used free software encryption system that implements the OpenPGP standard to provide secure communication and data protection across multiple platforms. It uses a hybrid cryptographic approach combining symmetric encryption for performance with public-key cryptography for secure key exchange and identity verification. The software allows users to encrypt files and messages, create digital signatures, and manage cryptographic keys, making it a foundational tool for privacy-focused workflows. Because it is open source and licensed under the GNU GPL, GnuPG can be freely audited, modified, and redistributed, which has contributed to its adoption in security-sensitive environments. It is primarily command-line driven but can be integrated into email clients, messaging tools, and graphical front-ends for broader usability.
    Downloads: 15 This Week
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  • 20
    SOPS

    SOPS

    Simple and flexible tool for managing secrets

    sops is an editor of encrypted files that supports YAML, JSON, ENV, INI and BINARY formats and encrypts with AWS KMS, GCP KMS, Azure Key Vault, age, and PGP. For the adventurous, unstable features are available in the develop branch, which you can install from source. To use sops as a library, take a look at the decrypt package. We rewrote Sops in Go to solve a number of deployment issues, but the Python branch still exists under python-sops. We will keep maintaining it for a while, and you can still pip install sops, but we strongly recommend you use the Go version instead. If you're using AWS KMS, create one or multiple master keys in the IAM console and export them, comma separated, in the SOPS_KMS_ARN env variable. It is recommended to use at least two master keys in different regions. If you want to use PGP, export the fingerprints of the public keys, comma separated, in the SOPS_PGP_FP env variable.
    Downloads: 15 This Week
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  • 21
    Social-Analyzer

    Social-Analyzer

    API, CLI, and Web App for analyzing and finding a person's profile

    Social Analyzer is an open source OSINT tool that helps investigators discover and analyze a person’s presence across a very large number of social media platforms. It provides a unified API, CLI, and web interface capable of scanning hundreds or thousands of sites for username matches and related metadata. The project includes modular detection and analysis components that users can enable depending on their investigative needs. It is commonly used in cybersecurity, digital forensics, and reconnaissance workflows where identity correlation is required. Social Analyzer emphasizes flexibility, allowing integration into automated pipelines or manual investigations. Overall, the project functions as a powerful reconnaissance engine for mapping online identities at scale.
    Downloads: 15 This Week
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  • 22
    geowifi

    geowifi

    OSINT tool for locating WiFi networks using BSSID or SSID data

    geowifi is an open source OSINT tool designed to search and retrieve geolocation information about WiFi networks using their BSSID or SSID identifiers. It queries several public WiFi geolocation databases and aggregates the results to help identify the approximate location of a wireless access point. By combining multiple data sources such as Wigle, Apple, Google, WifiDB, Mylnikov, and Combain, the tool can provide location data that may include coordinates and additional network metadata. Users can run searches through a command-line interface by specifying either the BSSID (MAC address) or the SSID of a network. The results can be displayed in different formats, including a structured JSON output or an interactive HTML map showing the discovered locations. geowifi also supports API-based integrations with certain services, which allows geowifi to retrieve more accurate or detailed geolocation data when valid API credentials are configured.
    Downloads: 15 This Week
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  • 23
    sbctl

    sbctl

    Secure Boot key manager

    sbctl intends to be a user-friendly secure boot key manager capable of setting up secure boot, offering key management capabilities, and keeping track of files that need to be signed in the boot chain. It is written top-to-bottom in Golang using go-uefi for the API layer and doesn't rely on existing secure boot tooling. It also tries to sport some integration testing towards tianocore utilizing vmtest.
    Downloads: 15 This Week
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  • 24
    uBlock

    uBlock

    uBlock: a fast, lightweight, and lean blocker for Chrome, Firefox

    uBlock: a fast, lightweight, and lean blocker for Chrome, Firefox, and Safari. Available on the Chrome Web Store or for manual installation. Available to install from the homepage. Available for install from the homepage or from the App Store. Available on the Firefox Add-ons site, or for manual installation. Opera shares Chrome's underlying engine, so you can install uBlock simply by grabbing the latest release for Chrome.To benefit from uBlock's higher efficiency, it's advised that you don't use other blockers at the same time (such as AdBlock or Adblock Plus). uBlock will do as well or better than most popular ad blockers. It's important to note that blocking ads is not theft. Don't fall for this creepy idea. The ultimate logical consequence of blocking = theft is the criminalisation of the inalienable right to privacy.
    Downloads: 15 This Week
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  • 25
    PentestBox

    PentestBox

    A Portable Penetration Testing Distribution for Windows

    PentestBox is not like other Penetration Testing Distributions which runs on virtual machines. It is created because more than 50% of penetration testing distributions users uses windows. Source:- https://pentestbox.com/download_stats.txt So it provides an efficient platform for Penetration Testing on windows.
    Downloads: 215 This Week
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