Kryptor is free and open source file encryption software for Windows, Linux, and macOS.

It is a portable, cross-platform command line tool that makes use of modern and secure cryptographic algorithms. It aims to be a mixture of age and Minisign in order to provide a simple, user friendly alternative to GPG.

CryptPad is a private-by-design alternative to popular office tools and cloud services. All the content stored on CryptPad is encrypted before being sent, which means nobody can access your data unless you give them the keys (not even us).

SSH server auditing (banner, key exchange, encryption, mac, compression, compatibility, security, etc)

DNSCrypt is a protocol that authenticates communications between a DNS client and a DNS resolver. It prevents DNS spoofing. It uses cryptographic signatures to verify that responses originate from the chosen DNS resolver and haven't been tampered with.

HTTP Public Key Pinning, or HPKP, is a security policy delivered via a HTTP response header much like HSTS and CSP. It allows a host to provide information to a user agent about which cryptographic identities it should accept from the host in the future. This can protect a host website from a security compromise at a Certificate Authority where rogue certificates may be issued for your hostname.

Streisand sets up a new server running L2TP/IPsec, OpenConnect, OpenSSH, OpenVPN, Shadowsocks, sslh, Stunnel, a Tor bridge, and WireGuard. It also generates custom instructions for all of these services. At the end of the run you are given an HTML file with instructions that can be shared with friends, family members, and fellow activists.