Secure Anonymous File Sharing - OnionShare

OnionShare lets you securely and anonymously share files of any size. It works by starting a web server, making it accessible as a Tor onion service, and generating an unguessable URL to access and download the files. It doesn’t require setting up a server on the internet somewhere or using a third party filesharing service. You host the file on your own computer and use a Tor onion service to make it temporarily accessible over the internet. The other user just needs to use Tor Browser to download the file from you.

Features:

• A user-friendly drag-and-drop graphical user interface that works in Windows, Mac OS X, and Linux
• Ability to share multiple files and folders at once
• Support for multiple people downloading files at once
• Automatically copies the unguessable URL to your clipboard
• Shows you the progress of file transfers
• When file is done transferring, automatically closes OnionShare to reduce the attack surface
• Localized into several languages, and supports international unicode filenames

When users want to send files, the program creates a password-protected, temporary website hosted on the Tor network—what’s known as a Tor Hidden Service—that runs on their computer. They provide the recipient with the URL and password for that site, preferably via a message encrypted with a tool like PGP or Off-The-Record encrypted instant messaging. The recipient visits that URL in a Tor Browser and downloads the file from that temporary, untraceable website, without needing to have a copy of Onionshare.

As soon as the person has downloaded the file, you can just cancel the web server and the file is no longer accessible to anyone.

"It’s basically 100 percent darknet."

How to Use

Before you can share files, you need to open Tor Browser in the background. This will provide the Tor service that OnionShare uses to start the onion service.

Open OnionShare and drag and drop files and folders you wish to share, and click Start Sharing. It will show you a .onion URL such as http://asxmi4q6i7pajg2b.onion/egg-cain and copy it to your clipboard. This is the secret URL that can be used to download the file you’re sharing. If you’d like multiple people to be able to download this file, uncheck the “close automatically” checkbox.

Send this URL to the person you’re trying to send the files to. If the files you’re sending aren’t secret, you can use normal means of sending the URL: emailing it, posting it to Facebook or Twitter, etc. If you’re trying to send secret files then it’s important to send this URL securely.

The person who is receiving the files doesn’t need OnionShare. All they need is to open the URL you send them in Tor Browser to be able to download the file.

Using the command line version

In Linux: Just run  onionshare from the terminal.
In Windows: Add C:\Program Files (x86)\OnionShare to your PATH. Now you can run onionshare.exe in a command prompt.

In Mac OS X: Run ln -s /Applications/OnionShare.app/Contents/MacOS/onionshare /usr/local/bin. Now you can run onionshare from the terminal.

Onionshare can be particularly useful when someone sending a file wants to remain anonymous even to the recipient. If whistleblowers can securely send an Onionshare URL and password to a journalist, they potentially could use it to leak secrets anonymously without being exposed. That flips the model of how Tor enables leaks: Sites like WikiLeaks and news organizations using the anonymous leak software SecureDrop host their own Tor Hidden Services. Onionshare could put more power in whistleblowers’ hands, helping them send secrets to journalists who don’t have that sort of anonymous submission system in place.

What it protects against

• Third parties don’t have access to files being shared. The files are hosted directly on the sender’s computer and don’t get uploaded to any server. Instead, the sender’s computer becomes the server. Traditional ways of sending files, like in an email or using a cloud hosting service, require trusting the service with access to the files being shared.
• Network eavesdroppers can’t spy on files in transit. Because connections between Tor onion services and Tor Browser are end-to-end encrypted, no network attackers can eavesdrop on the shared files while the recipient is downloading them. If the eavesdropper is positioned on the sender’s end, the recipient’s end, or is a malicious Tor node, they will only see Tor traffic. If the eavesdropper is a malicious rendezvous node used to connect the recipient’s Tor client with the sender’s onion service, the traffic will be encrypted using the onion service key.
• Anonymity of sender and recipient are protected by Tor. OnionShare and Tor Browser protect the anonymity of the users. As long as the sender anonymously communicates the OnionShare URL with the recipient, the recipient and eavesdroppers can’t learn the identity of the sender.
• If an attacker enumerates the onion service, the shared files remain safe. There have been attacks against the Tor network that can enumerate onion services. If someone discovers the .onion address of an OnionShare onion service, they still cannot download the shared files without knowing the slug. The slug is generated by choosing two random words from a list of 6800 words, meaning there are 6800^2, or about 46 million possible slugs. But they can only make 20 wrong guesses before OnionShare stops the server, preventing brute force attacks against the slug. The OnionShare server also checks request URIs using a constant time string comparison function, so timing attacks can’t be used to help guess the slug.

What it doesn’t protect against

• Communicating the OnionShare URL might not be secure. The sender is responsible for securely communicating the OnionShare URL with the recipient. If they send it insecurely (such as through an email message, and their email is being monitored by an attacker), the eavesdropper will learn that they’re sending files with OnionShare. If the attacker loads the URL in Tor Browser before the legitimate recipient gets to it, they can download the files being shared. If this risk fits the sender’s threat model, they must find a more secure way to communicate the URL, such as in an encrypted email, chat, or voice call. This isn’t necessary in cases where the files being shared aren’t secret.
• Communicating the OnionShare URL might not be anonymous. While OnionShare and Tor Browser allow for anonymously sending files, if the sender wishes to remain anonymous they must take extra steps to ensure this while communicating the OnionShare URL. For example, they might need to use Tor to create a new anonymous email or chat account, and only access it over Tor, to use for sharing the URL. This isn’t necessary in cases where there’s no need to protect anonymity, such as coworkers who know each other sharing work documents.

Building OnionShare

Start by getting a copy of the source code:

git clone https://github.com/micahflee/onionshare.git
cd onionshare

For .deb-based distros (like Debian, Ubuntu, Linux Mint):
Then install the needed dependencies:

sudo apt-get install -y python3-flask python3-stem python3-pyqt5 python-nautilus

After that you can try both the CLI and the GUI version of OnionShare:

./install/scripts/onionshare
./install/scripts/onionshare-gui

A script to build a .deb package and install OnionShare easily is also provided for your convenience:

sudo apt-get install -y build-essential fakeroot python3-all python3-stdeb dh-python python-nautilus
./install/build_deb.sh
sudo dpkg -i deb_dist/onionshare_*.deb

Note that OnionShare uses stdeb to generate Debian packages, and python3-stdeb is not available in Ubuntu 14.04 (Trusty). Because of this, you can’t use the build_install.sh script to build the .deb file in versions of Ubuntu 14.04 and earlier. However, .deb files you build in later versions of Ubuntu will install and work fine in 14.04.

For .rpm-based distros (Red Hat, Fedora, CentOS):

sudo sudo dnf install -y rpm-build python3-flask python3-stem python3-qt5 nautilus-python
./install/build_rpm.sh
sudo yum install -y dist/onionshare-*.rpm

Depending on your distribution, you may need to use yum instead of dnf.
For ArchLinux:
There is a PKBUILD available here that can be used to install OnionShare.

Download OnionShare

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Anonymous Operating System - Whonix 13

Whonix is a desktop operating system designed for advanced security and privacy. It realistically addresses attacks while maintaining usability. It makes online anonymity possible via fail-safe, automatic, and desktop-wide use of the Tor network. A heavily reconfigured Debian base is run inside multiple virtual machines, providing a substantial layer of protection from malware and IP leaks. Pre-installed applications, pre-configured with safe defaults are ready for use. Additionally, installing custom applications or personalizing the desktop will in no way jeopardize the user. Whonix is the only actively developed OS designed to be run inside a VM and paired with Tor.

Whonix consists of two parts: One solely runs Tor and acts as a gateway, which we call Whonix-Gateway. The other, which we call Whonix-Workstation, is on a completely isolated network. Only connections through Tor are possible. With Whonix, you can use applications and run servers anonymously over the internet. DNS leaks are impossible, and not even malware with root privileges can find out the user's real IP.

 Whonix benefits anyone who does sensitive work on their desktop or online. This includes:

• Investigators and whistleblowers whose work threatens the powerful.
  • Within an isolated environment, research and evidence can be gathered without accidental exposure.

• Researchers, government officials, or businesspeople who may be targets of espionage.
  • Anti-malware and anti-exploit modifications lower the threat of trojans and backdoors.

• Journalists who endanger themselves and their families by reporting on organized crime.
  • Compartmentalized, anonymous internet use prevents identity correlation between social media (and other) logins.

• Political activists under targeted surveillance and attack.
  • The usefulness of threatening the ISP in order to analyze a target's internet use will be severely limited. The cost of targeting a Whonix user is greatly increased.

• Average computer users in a repressive or censored environment.
  • Easy Tor setup (and options for advanced setups) gives users in repressive countries full internet access desktop-wide, not just in their browser.

• Average computer users who simply don’t want all or some aspect of their private lives uploaded, saved, and analyzed.
  • Whonix does not silently upload identifying information in the background.

Qubes-Whonix:
Either start with fresh templates. I.e. uninstall qubes-template-whonix-gw and qubes-template-whonix-ws. Then, to install, run in dom0:

sudo qubes-dom0-update --enablerepo=qubes-tempates-community qubes-template-whonix-gw qubes-template-whonix-ws

Or you can also upgrade from Whonix’s repository. Please refer to the following instructions:
https://www.whonix.org/wiki/Upgrading_Whonix_12_to_Whonix_13


Non-Qubes-Whonix:
https://www.whonix.org/wiki/Download

Or you can also upgrade from Whonix’s repository. Please refer to the following instructions:
https://www.whonix.org/wiki/Upgrading_Whonix_12_to_Whonix_13

Whonix 12 -> 13 changes:
https://phabricator.whonix.org/maniphest/query/TfpGK0Sq8w1j/#R

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Encrypted DNS With - DNSCrypt

A protocol for securing communications between a client and a DNS resolver.

Disclaimer

dnscrypt-proxy verifies that responses you get from a DNS provider have been actually sent by that provider, and haven't been tampered with.

This is not a VPN. It doesn't mask your IP address, and if you are using it with a public DNS service, be aware that it will (and has to) decrypt your queries.

If you are using it for privacy, it might do the opposite of what you are trying to achieve. If you are using it to prevent VPN "leaks", this isn't the right tool either: the proper way to prevent VPN "leaks" is to avoid sending data to yet another third party: use a VPN service that operates its own DNS resolvers.

Description

dnscrypt-proxy provides local service which can be used directly as your local resolver or as a DNS forwarder, authenticating requests using the DNSCrypt protocol and passing them to an upstream server.

The DNSCrypt protocol uses high-speed high-security elliptic-curve cryptography and is very similar to DNSCurve, but focuses on securing communications between a client and its first-level resolver.

While not providing end-to-end security, it protects the local network, which is often the weakest point of the chain, against man-in-the-middle attacks.

dnscrypt-proxy is only a client-implementation of the protocol. It requires a DNSCrypt server on the other end.

Download and integrity check

dnscrypt-proxy can be downloaded here: dnscrypt-proxy download

Note: dnscrypt.org is now blocked by the Great Firewall of China. But the source code can also be downloaded on Github, in the "releases" section.

After having downloaded a file, compute its SHA256 digest. For example:

$ openssl dgst -sha256 dnscrypt-proxy-1.6.1.tar.bz2

Verify this digest against the expected one, that can be retrieved using a simple DNS query:

$ drill -aD TXT dnscrypt-proxy-1.6.1.tar.bz2.download.dnscrypt.org

or

$ dig +dnssec TXT dnscrypt-proxy-1.6.1.tar.bz2.download.dnscrypt.org

If the content of the TXT record doesn't match the SHA256 digest you computed, please file a bug report on Github as soon as possible and don't go any further.

Signatures can also be verified with the Minisign tool:

$ minisign -VP RWQf6LRCGA9i53mlYecO4IzT51TGPpvWucNSCh1CBM0QTaLn73Y7GFO3 -m dnscrypt-proxy-1.6.1.tar.bz2

Installation

The daemon is known to work on recent versions of OSX, OpenBSD, Bitrig, NetBSD, Dragonfly BSD, FreeBSD, Linux, iOS (requires a jailbroken device), Android (requires a rooted device), and Windows (requires MingW).

Install libsodium. On Linux, don't forget to run ldconfig if you installed it from source.

A "minimal" build of libsodium (--enable-minimal) works equally well as a full build with this proxy.

On Fedora, RHEL and CentOS, you may need to add /usr/local/lib to the paths the dynamic linker is going to look at. Before issuing ldconfig, type:

# echo /usr/local/lib > /etc/ld.so.conf.d/usr_local_lib.conf

Now, download the latest dnscrypt-proxy version and extract it:

$ bunzip2 -cd dnscrypt-proxy-*.tar.bz2 | tar xvf -
$ cd dnscrypt-proxy-*

Compile and install it using the standard procedure:

$ ./configure && make -j2
# make install

Replace -j2 with whatever number of CPU cores you want to use for the compilation process.

The proxy will be installed as /usr/local/sbin/dnscrypt-proxy by default.

Command-line switches are documented in the dnscrypt-proxy(8) man page.

GUIs for dnscrypt-proxy

If you need a simple graphical user interface in order to start/stop the proxy and change your DNS settings, check out the following project:

ºSimple DNSCrypt: an all-in-one, standalone client - using DNSCrypt on Windows has never been so simple.

ºDNSCrypt WinClient: Easily enable/disable DNSCrypt on multiple adapters. Supports different ports and protocols, IPv6, parental controls and the proxy can act as a gateway service. Windows only, written in .NET.

ºDNSCrypt Windows Service Manager: Assists in setting up DNSCrypt as a service, configure it and change network adapter DNS settings to use DNSCrypt. It includes the option to use TCP/UDP protocol, IPV4/IPV6 connectivity, choice of network adapter to configure, as well as configurations for currently available DNSCrypt providers.

ºDNSCrypt OSXClient: Mac OSX application to control the DNSCrypt Proxy.

ºDNSCrypt Tools for Linux: A set of tools for dnscrypt-proxy. Features a start and stop button as well as options to enable or disable from startup. Developed for Porteus Linux.

DNSCrypt-enabled resolvers

To get started, you can use any of the public DNS resolvers supporting DNSCrypt.

This file is constantly updated, and its minisign signature can be verified with the following command:

minisign -VP RWQf6LRCGA9i53mlYecO4IzT51TGPpvWucNSCh1CBM0QTaLn73Y7GFO3 -m dnscrypt-resolvers.csv

If you want to add DNSCrypt support to your own public or private resolver, check out DNSCrypt-Wrapper and dnsdist. These are server-side proxies that work with any name resolver.

A DNSCrypt server Docker image is also available to deploy a non-logging, DNSSEC and DNSCrypt-capable resolver without having to manually compile or configure anything.

Usage

Having a dedicated system user, with no privileges and with an empty home directory, is highly recommended. For extra security, DNSCrypt will chroot() to this user's home directory and drop root privileges for this user's uid as soon as possible.

The easiest way to start the daemon is:

# dnscrypt-proxy --daemonize --resolver-name=<resolver name>

Replace <resolver name> with the name of the resolver you want to use (the first column in the list of public resolvers).

The proxy will accept incoming requests on 127.0.0.1, tag them with an authentication code, forward them to the resolver, and validate each answer before passing it to the client.

Given such a setup, in order to actually start using DNSCrypt, you need to update your /etc/resolv.conf file and replace your current set of resolvers with:

nameserver 127.0.0.1

Other common command-line switches include:

º--daemonize in order to run the server as a background process.
º--local-address=<ip>[:port] in order to locally bind a different IP address than 127.0.0.1
º--logfile=<file> in order to write log data to a dedicated file. By default, logs are sent to stdout if the server is running in foreground, and to syslog if it is running in background.
º--loglevel=<level> if you need less verbosity in log files.
º--max-active-requests=<count> to set the maximum number of active requests. The default value is 250.
º--pidfile=<file> in order to store the PID number to a file.
º--user=<user name> in order to chroot()/drop privileges.
º--resolvers-list=<file>: to specity the path to the CSV file containing the list of available resolvers, and the parameters to use them.
º--test in order to check that the server-side proxy is properly configured and that a valid certificate can be used. This is useful for monitoring your own dnscrypt proxy. See the man page for more information.

The --resolver-address=<ip>[:port], --provider-name=<certificate provider FQDN> and --provider-key=<provider public key> switches can be specified in order to use a DNSCrypt-enabled recursive DNS service not listed in the configuration file.

Running dnscrypt-proxy using systemd

On a system using systemd, and when compiled with --with-systemd, the proxy can take advantage of systemd's socket activation instead of creating the sockets itself. The proxy will also notify systemd on successful startup.

Two sockets need to be configured: a UDP socket (ListenStream) and a TCP socket (ListenDatagram) sharing the same port.

The source distribution includes the dnscrypt-proxy.socket and dnscrypt-proxy.service files that can be used as a starting point.

Installation as a service (Windows only)

The proxy can be installed as a Windows service.

See README-WINDOWS.markdown for more information on DNSCrypt on Windows.

Using DNSCrypt in combination with a DNS cache

The DNSCrypt proxy is not a DNS cache. This means that incoming queries will not be cached and every single query will require a round-trip to the upstream resolver.

For optimal performance, the recommended way of running DNSCrypt is to run it as a forwarder for a local DNS cache, such as unbound or powerdns-recursor.

Both can safely run on the same machine as long as they are listening to different IP addresses (preferred) or different ports.

If your DNS cache is unbound, all you need is to edit the unbound.conf file and add the following lines at the end of the server section:

do-not-query-localhost: no

forward-zone:
  name: "."
  forward-addr: 127.0.0.1@40


The first line is not required if you are using different IP addresses instead of different ports.

Then start dnscrypt-proxy, telling it to use a specific port (40, in this example):

# dnscrypt-proxy --local-address=127.0.0.1:40 --daemonize

IPv6 support

IPv6 is fully supported. IPv6 addresses with a port number should be specified as [ip]:port.

# dnscrypt-proxy --local-address='[::1]:40' ...

Queries using nonstandard ports / over TCP

Some routers and firewalls can block outgoing DNS queries or transparently redirect them to their own resolver. This especially happens on public Wifi hotspots, such as coffee shops.

As a workaround, the port number can be changed using the --resolver-port=<port> option.

By default, dnscrypt-proxy sends outgoing queries to UDP port 443.

In addition, the DNSCrypt proxy can force outgoing queries to be sent over TCP. For example, TCP port 443, which is commonly used for communication over HTTPS, may not be filtered.

The --tcp-only command-line switch forces this behavior. When an incoming query is received, the daemon immediately replies with a "response truncated" message, forcing the client to retry over TCP. The daemon then authenticates the query and forwards it over TCP to the resolver.

--tcp-only is slower than UDP because multiple queries over a single TCP connections aren't supported yet, and this workaround should never be used except when bypassing a filter is actually required.

Public-key client authentication

By default, dnscrypt-proxy generates non-deterministic client keys every time it starts, or for every query (when the ephemeral keys feature is turned on).

However, commercial DNS services may want to use DNSCrypt to authenticate the sender of a query using public-key cryptography, i.e. know what customer sent a query without altering the DNS query itself, and without using shared secrets.

Resolvers that should be accessible from any IP address, but that are supposed to be used only by specific users, can also take advantage of DNSCrypt to only respond to queries sent using a given list of public keys.

In order to do so, dnscrypt-proxy 1.6.0 introduced the --client-key (or -K) switch. This loads a secret client key from a file instead of generating random keys:

# dnscrypt-proxy --client-key=/private/client-secret.key

This file has to remain private, and its content doesn't have to be known by the DNS service provider.

Versions 1 and 2 of the DNSCrypt protocol use Curve25519 keys, and the format of this file for Curve25519 keys is a hexadecimal string, with optional :, [space] and - delimiters, decoding to 34 bytes:

01 01 || 32-byte Curve25519 secret key

Server-side, a short TTL for certificates is recommended when using this system.

EDNS payload size

DNS packets sent over UDP have been historically limited to 512 bytes, which is usually fine for queries, but sometimes a bit short for replies.

Most modern authoritative servers, resolvers and stub resolvers support the Extension Mechanism for DNS (EDNS) that, among other things, allows a client to specify how large a reply over UDP can be.

Unfortunately, this feature is disabled by default on a lot of operating systems. It has to be explicitly enabled, for example by adding options edns0 to the /etc/resolv.conf file on most Unix-like operating systems.

dnscrypt-proxy can transparently rewrite outgoing packets before authenticating them, in order to add the EDNS0 mechanism. By default, a conservative payload size of 1252 bytes is advertised.

This size can be made larger by starting the proxy with the --edns-payload-size=<bytes> command-line switch. Values up to 4096 are usually safe, but some routers/firewall/NAT boxes block IP fragments.

If you can resolve test-tcp.dnscrypt.org, increasing the maximum payload size is probably fine. If you can't, or just to stay on the safe side, do not tweak this; stick to the default value.

A value below or equal to 512 will disable this mechanism, unless a client sends a packet with an OPT section providing a payload size.

The hostip utility

The DNSCrypt proxy ships with a simple tool named hostip that resolves a name to IPv4 or IPv6 addresses.

This tool can be useful for starting some services before dnscrypt-proxy.

Queries made by hostip are not authenticated.

Plugins

dnscrypt-proxy can be extended with plugins. A plugin acts as a filter that can locally inspect and modify queries and responses.

The plugin API is documented in the README-PLUGINS.markdown file.

Any number of plugins can be combined (chained) by repeating the --plugin command-line switch.

The default distribution ships with some example plugins:

ºlibdcplugin_example_ldns_aaaa_blocking: Directly return an empty response to AAAA queries

Example usage:

# dnscrypt-proxy ... \
--plugin libdcplugin_example_ldns_aaaa_blocking.la

If IPv6 connectivity is not available on your network, this plugin avoids waiting for responses about IPv6 addresses from upstream resolvers. This can improve your web browsing experience.

ºlibdcplugin_example_ldns_blocking: Block specific domains and IP addresses.
This plugin returns a REFUSED response if the query name is in a list of blacklisted names, or if at least one of the returned IP addresses happens to be in a list of blacklisted IPs.

Recognized switches are:

--domains=<file>
--ips=<file>

A file should list one entry per line.

IPv4 and IPv6 addresses are supported.

For names, leading and trailing wildcards (*) are also supported (e.g. *xxx*, *.example.com, ads.*)

# dnscrypt-proxy ... \
--plugin libdcplugin_example,--ips=/etc/blk-ips,--domains=/etc/blk-names

ºlibdcplugin_example-logging: Log client queries

This plugin logs the client queries to the standard output (default) or to a file.

# dnscrypt-proxy ... \
--plugin libdcplugin_example_logging,/var/log/dns.log

ºExtra plugins

Additional plugins can be found on Github:

ºMasquerade plugin
ºGeoIP plugin.

Download DNSCrypt

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An Anonymous VPN-Adapter (P2P layer 3 VPN based on Tor or I2P) - OnionCat

OnionCat is a VPN-adapter which allows to connect two or more computers or networks through VPN-tunnels. It is designed to use the anonymization networks Tor or I2P as its transport, hence, it provides location-based anonymity while still creating tunnel end points with private unique IP addresses.

OnionCat uses IPv6 as native layer 3 network protocol. The clients connected by it appear as on a single logical IPv6 network as being connected by a virtual switch. OnionCat automatically calculates and assigns unique IPv6 addresses to the tunnel end points which are derived from the hidden service ID (onion ID) of the hidden service of the local Tor client, or the local I2P server destination, respectively. This technique provides authentication between the onion ID and the layer 3 address, hence, defeats IP spoofing within the OnionCat VPN.

If necessary, OnionCat can of course transport IPv4 as well. Although it has native IP support, the suggested way to do this is to configure an IPv4-in-IPv6 tunnel.

Download OnionCat

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Most Secure Peer-to-Peer Encrypted Messenger that Sends No Metadata - Ricochet

There are several encrypted messaging apps for mobile and desktop platforms that shipped with "The Most Secure" tagline but ends up in de-anonymizing the real identity of its users in some or the other way.

In fact, very few encrypted messaging apps available today deal with the core problem of Metadata. 

The majority of apps offer end-to-end encryption that kept the content of your messages away from prying eyes, but your metadata will still be accessible to them, which is enough to know who you really are, and who you're talking to.

But, one messenger app stands out of the crowd by providing superb anonymity to its users, and it is dubbed as "Ricochet."

Ricochet is a peer-to-peer instant messaging system available for Windows, Mac, and Linux and you can trust it as the app has already cleared its first professional security audit carried out by cyber security company NCC Group.

What's so Promising about Ricochet?

Unlike other encrypted messaging clients, Ricochet makes use of TOR hidden services in an effort to maintain its users’ anonymity.

With the help of hidden services, a user's traffic never leaves The Onion Router (TOR) network, which makes it much harder for prying eyes or any attacker to see where the traffic is going or coming from.

Peer-to-Peer Connection: No Servers! No Operators!

Ricochet does not trust anyone in maintaining the privacy of its users; thus, the developers have implemented their app with no server or operator support that could be compromised exposing your personal details.

"The concept with Ricochet is: how can we do messaging without any server in the middle—without trusting anything to forward your messages to your contacts" John Brooks (Ricochet program's maintainer) stated.

"That turns out to be exactly one of the problems that hidden services can solve: to contact someone, without anybody in the middle knowing who you are or who you're contacting."

Here's How Ricochet Works

Ricochet supports cross-platform and is very easy to use even for non-technical users.

Your Username: A Unique .Onion Address

Every Ricochet client hosts a Tor hidden service, and once you sign up for Ricochet, that is actually your Ricochet ID: a unique .onion address.

Only the one with this .onion address can contact you and send messages, which means the contacts connect to you through Tor and not through any intermediate server, making it extremely harder for anyone to know your real identity from your address.

Ricochet Creates Huge Spike in Hidden Addresses

Security researcher Alan Woodward has noticed an unprecedented spike in the number of unique .onion hidden addresses on the Tor network in month of February.

The Statistics shared by the Tor project shows that the number of unique .onion sites has increased by more than 25,000 within 2-3 days.

Researcher believed that this sudden rise could be due to the popularity of Ricochet that creates unique .onion address for every registered user.

Your Messages: End-to-End Encrypted By Default

Besides this, Ricochet also encrypts the contents of your messages by default.

So, to start chatting with someone over Ricochet, you should first know his/her unique Ricochet ID that is being auto-generated at the time of the Ricochet Installation.

Moreover, once the connection is terminated by either the sender or the receiver, the remaining one would not be able to communicate or send messages to the other.

Ricochet Takes Your Security Seriously

The audit by NCC Group discovered a security flaw that could be exploited to deanonymize users, but the good news is that the issue has been resolved in the latest release, Ricochet 1.1.2.

The security vulnerability was independently discovered by a member of the Ricochet community.

Ricochet has been around since 2014 and is now far secured than any other existing encrypted messaging apps. But the app is still in the dogfooding stage, as Brooks referred to the "Be Careful" statement on the project's official website:

"Ricochet is an experiment. Security and anonymity are difficult topics, and you should carefully evaluate your risks and exposure with any software."

Download Ricochet

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Anonymous Twitter - AnonTwi

AnonTwi is a free software python client designed to navigate anonymously on social networks. It supports Identi.ca and Twitter.com. It can leverages proxying, randomization of header values, send fake geolocation data, and more.





Anonymous Twitter

AnonTwi supports:

ºAES + HMAC-SHA1 encryption on Tweets and Direct Messages –> [More Info]
ºSecure Sockets Layer (SSL) to interact with API Anonymous Twitter: AnonTwi
ºProxy Socks (for example, to connect to the TOR network)
ºRandom HTTP header values
ºSend long messages splitted automatically
ºAutomatic decryption of tweet’s urls or raw inputs
ºBackup messages to your disk (max: 3200)
ºSend fake geolocation places
ºRemove data and close account (suicide)
ºView global Trending Topics
ºUTF-8 + Unicode support (chinese, arabic, symbols, etc)
ºMultiplatform: GNU/Linux, MacOS, Win32
ºDetailed colourful output results
ºGenerate tools and modules
ºGTK + WebGUI interfaces
ºAn IRC bot slave

Download AnonTwi

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Best Hacking Tools 2016 - Windows, Mac OS X, And Linux

Metasploit

Rather than calling Metasploit a collection of exploit tools, I’ll call it an infrastructure that you can utilize to build your own custom tools. This free tool is one of the most popular cybersecurity tool around that allows you to locate vulnerabilities at different platforms. Metasploit is backed by more than 200,000 users and contributors that help you to get insights and uncover the weaknesses in your system.

This top hacking tool package of 2016 lets you simulate real-world attacks to tell you about the weak points and finds them. As a penetration tester, it pin points the vulnerabilities with Nexpose closed–loop integration using Top Remediation reports. Using the open source Metasploit framework, users can build their own tools and take the best out of this multi-purpose hacking tool.


Metasploit is available for all major platforms including Windows, Linux, and OS X.

Download MetaSploit 

Acunetix WVS

Acunetix is a web vulnerability scanner (WVS) that scans and finds out the flaws in a website that could prove fatal. This multi-threaded tool crawls a website and finds out malicious Cross-site Scripting, SQL injection, and other vulnerabilities. This fast and easy to use tool scans WordPress websites form more than 1200 vulnerabilities in WordPress.

Acunetix comes with a Login Sequence Recorder that allows one to access the password protected areas of websites. The new AcuSensor technology used in this tool allows you to reduce the false positive rate. Such features have made Acunetix WVS a preferred hacking tools that you need to check out in 2016.


Acunetix is available for Windows XP and higher.

 Obs, Search in google to get full version software (cracked)

Download Acunetix WVS

Nmap

Nmap – also known as Network Mapper – falls in the category of a port scanner tool. This free and open source tool is the most popular port scanning tool around that allows efficient network discovery and security auditing. Used for a wide range of services, Nmap uses raw IP packets to determine the hosts available on a network, their services along with details, operating systems used by hosts, the type of firewall used, and other information.

Last year, Nmap won multiple security products of the year awards and was featured in multiple movies including The Matrix Reloaded, Die Hard 4, and others.  Available in the command line, Nmap executable also comes in an advanced GUI avatar.


Nmap is available for all major platforms including Windows, Linux, and OS X.

Download Nmap

Wireshark

Wireshark is a well-known packet crafting tool that discovers vulnerability within a network and probes firewall rule-sets. Used by thousands of security professionals to analyze networks and live pocket capturing and deep scanning of hundreds of protocols. Wireshark helps you to read live data from Ethernet, IEEE 802.11, PPP/HDLC, ATM, Bluetooth, USB, Token Ring, Frame Relay, FDDI, and others.

This free and open source tool was originally named Ethereal. Wireshark also comes in a command-line version called TShark.


This GTK+-based network protocol analyzer runs with ease on Linux, Windows, and OS X.

Download WireShark

oclHashcat

If password cracking is something you do on daily basis, you might be aware of the free password cracking tool Hashcat. While Hashcat is a CPU-based password cracking tool, oclHashcat is its advanced version that uses the power of your GPU.

oclHashcat calls itself world’s fastest password cracking tool with world’s first and only GPGPU based engine. For using the tool, NVIDIA users require ForceWare 346.59 or later and AMD users require Catalyst 15.7 or later.

This tool employs following attack modes for cracking:

ºStraight
ºCombination
ºBrute-force
ºHybrid dictionary + mask
ºHybrid mask + dictionary

Mentioning another major feature, oclHashcat is an open source tool under MIT license that allows an easy integration or packaging of the common Linux distros.


This useful hacking tool can be downloaded in different versions  for Linux, OSX, and Windows.

Download oclHashcat

Nessus Vulnerability Scanner

This top free hacking tool of 2016 works with the help of a client-server framework. Developed by Tenable Network Security, the tool is one of the most popular vulnerability scanners we have. Nessus serves different purposes to different types of users – Nessus Home, Nessus Professional, Nessus Manager and Nessus Cloud.

Using Nessus, one can scan multiple types of vulnerabilities that include remote access flaw detection, misconfiguration alert, denial of services against TCP/IP stack, preparation of PCI DSS audits, malware detection, sensitive data searches etc. To launch a dictionary attack, Nessus can also call a popular tool Hydra externally.

Apart from the above mentioned basic functionalities, Nessus could be used to scan multiple networks on IPv4, IPv6 and hybrid networks. You can set scheduled scan to run at your chosen time and re-scan all or a subsection of previously scanned hosts using selective host re-scanning.


Nessus is supported by a variety of platforms including Windows 7 and 8, Mac OS X, and popular Linux distros like Debian, Ubuntu, Kali Linux etc.

Download Nessus Vulnerability Scanner

Maltego

Maltego is an open source forensics platform that offers rigorous mining and information gathering to paint a picture of cyber threats around you. Maltego excels in showing the complexity and severity of points of failure in your infrastructure and the surrounding environment.

Maltego is a great hacker tool that analyzes the real world links between people, companies, websites, domains, DNS names, IP addresses, documents and whatnot. Based on Java, this tool runs in an easy-to-use graphical interface with lost customization options while scanning.


Maltego hacking tool  is available for Windows, Mac, and Linux.

Download Maltego

Social-Engineer Toolkit

Also featured on Mr. Robot, TrustedSec’s Social-Engineer Toolkit is an advanced framework for simulating multiple types of social engineering attacks like credential harvestings, phishing attacks, and more. On the show, Elliot is seen using the SMS spoofing tool from the Social-Engineer Toolkit.

This Python-driven tool is the standard tool for social-engineering penetration tests with more than two million downloads. It automates the attacks and generates disguising emails, malicious web pages and more.

To download SET on Linux, type the following command:

git clone https://github.com/trustedsec/social-engineer-toolkit/ set/


Apart from Linux, Social-Engineer Toolkit is partially supported on Mac OS X and Windows.



Other top hacking tools in multiple categories:

Web Vulnerability Scanners – Burp Suite, Firebug, AppScan, OWASP Zed, Paros Proxy

Vulnerability Exploitation Tools – Netsparker, sqlmap, Core Impact, WebGoat, BeEF

Forensic Tools – Helix3 Pro, EnCase, Autopsy

Port Scanners – Unicornscan, NetScanTools, Angry IP Scanner

Traffic Monitoring Tools – Nagios, Ntop, Splunk, Ngrep, Argus

Debuggers – IDA Pro, WinDbg, Immunity Debugger, GDB

Rootkit Detectors – DumpSec, Tripwire, HijackThis

Encryption Tools – KeePass, OpenSSL, OpenSSH/PuTTY/SSH, Tor

Password Crackers – John the Ripper, Aircrack, Hydra, ophcrack


By Offensive Sec

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