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Copyfree Works

The license status of some works may be more complex than it at first appears here. In some cases, the license status listed for a given work is the "primary" license under which it is distributed. In several cases, parts of the work may be distributed under other licenses -- potentially even non-copyfree licenses.

Where present, descriptions are typically drawn from the claims of the projects themselves, and represent neither claims nor opinions of the Copyfree Initiative. Inclusion here (with or without description) does not constitute, and should not be inferred as, endorsement of any project.

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acme-clientpermalink

License Reference

The acme-client project provides a Let's Encrypt client designed for security, in a straightforward, open source C implementation that isolates each step of the sequence.

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acme-dns-tinypermalink

License Reference

The acme-dns-tiny project provides a Python 3 script able to request TLS certificates to a CA server providing an ACME interface.

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acme-tinypermalink

License Reference

The acme-tiny project provides a tiny, auditable script that you can throw on your server to issue and renew Let's Encrypt certificates.

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acme2permalink

License Reference

The acme2 project provides a PHP client for ACME protocal (version 2) implementation, used for generating letsencrypt's free ssl certificate.

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Acme::Clientpermalink

License Reference

Acme::Client is a client implementation of the ACMEv2 protocol in Ruby.

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axTLSpermalink

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BearSSLpermalink

License Reference

BearSSL is an implementation of the SSL/TLS protocol (RFC 5246) written in C.

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calccrypto/OpenPGPpermalink

License Reference

This calccrypto implementation of OpenPGP is a toy/educational implementation of the RFC 4880 standard.

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Certespermalink

License Reference

Certes is an ACME client runs on .NET and .NET, and supports ACME v2 and wildcard certificates.

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Certify The Webpermalink

License Reference

Certify The Web is an SSL/TLS manager GUI for Windows.

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CONIKSpermalink

License References

CONIKS is a key management system for end users capable of integration in end-to-end secure communication services. The main idea is that users should not have to worry about managing encryption keys when they want to communicate securely, but they also should not have to trust their secure communication service providers to act in their interest.

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dehydratedpermalink

License Reference

Dehydrated is a client for signing certificates with an ACME server implemented as a relatively simple Bash script.

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eggsampler/acmepermalink

License Reference

The eggsampler/acme project provides a Go client library implementation for the ACME v2 revision 10 specification, specifically for use with the Let's Encrypt service.

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Foxtrotpermalink

License Reference

Foxtrot is a simple and secure routing network based on bitcoin cryptography. Foxtrot enables easy p2p communications and has built-in mechanisms for peer discovery, creation of services addressable by public keys, and establishing encrypted connections.

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Get HTTPS for free!permalink

License Reference

"Get HTTPS for free!" allows you to get a free HTTPS certificate without having to install any software or having to share your private keys with anyone. It uses the non-profit Let's Encrypt certificate authority to issue the free certificates.

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Greenlockpermalink

License Reference

Greenlock provides free SSL, free wildcard SSL, and fully automated HTTPS.

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keybase clientpermalink

License Reference

This is the keybase client repository. It includes the Go library and command line client, the Keybase service code, and clients for Android, iOS, Linux, MacOS, and MS Windows. It also contains packaged versions of clients for various OSes.

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le-acme2-phppermalink

License Reference

The le-acme2-php project provides a LetsEncrypt client library for ACME v2 written in PHP. This library is inspired by yourivw/LEClient and enhanced with some new features.

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LEClientpermalink

License Reference

LEClient is a PHP LetsEncrypt client library for ACME v2.

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netpgppermalink

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Node Lambda ACMEpermalink

License Reference

Node Lambda ACME utilizes AWS Lambda to periodically (once per day) check a set of certificates for expiration, and then if they're about to expire or invalid/missing, it will request a new certificate from the ACME infrastructure.

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node-acme-clientpermalink

License Reference

The node-acme-client project provides a simple and unopinionated ACME client.

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OpenPGP SDKpermalink

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Posh-ACMEpermalink

License Reference

Posh-ACME is an ACME v2 client implemented as a Windows PowerShell module that enables you to generate publicly trusted SSL/TLS certificates from an ACME capable certificate authority such as Let's Encrypt.

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ProtonMail Web Clientpermalink

License Reference

The ProtonMail Web Client is the official Official AngularJS web client for the ProtonMail secure email service. ProtonMail also makes use of OpenPGPjs to ensure message crytography is OpenPGP compliant.

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Sewerpermalink

License Reference

Sewer is a Let's Encrypt (ACME) command line and Python library client.

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Tom Zerucha's OpenPGPpermalink

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zkcpermalink

License Reference

Zero Knowledge Communications (zkc) is a suite of programs to enable private and secure communications between any number of parties.

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