102 lines
4.7 KiB
Markdown
102 lines
4.7 KiB
Markdown
# ZeroBin 0.22
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[](https://travis-ci.org/elrido/ZeroBin)
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[](https://www.codacy.com/app/ZeroBin/ZeroBin?utm_source=github.com&utm_medium=referral&utm_content=elrido/ZeroBin&utm_campaign=Badge_Grade)
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ZeroBin is a minimalist, opensource online pastebin where the server has zero
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knowledge of pasted data.
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Data is encrypted/decrypted in the browser using 256 bit AES.
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This is a fork of ZeroBin, originally developed by
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[Sébastien Sauvage](https://github.com/sebsauvage/ZeroBin). It was refactored
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to allow easier and cleaner extensions and has now much more features than the
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original. It is however still fully compatible to the original ZeroBin 0.19
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data storage scheme. Therefore such installations can be upgraded to this fork
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without loosing any data.
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## What ZeroBin provides
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+ As a server administrator you don't have to worry if your users post content
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that is considered illegal in your country. You have no knowledge of any
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of the pastes content. If requested or enforced, you can delete any paste from
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your system.
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+ Pastebin-like system to store text documents, code samples, etc.
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+ Encryption of data sent to server.
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+ Possibility to set a password which is required to read the paste. It further
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protects a paste and prevents people stumbling upon your paste's link
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from being able to read it without the password.
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## What it doesn't provide
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- As a user you have to trust the server administrator. If the server you use does
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not use HTTPS (which is *not* recommend!) you also have to trust your internet provider
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and any country the traffic passes not to inject any malicious javascript code.
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All ZeroBin installation should use HTTPS. Ideally secured by
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[HSTS](https://en.wikipedia.org/wiki/HTTP_Strict_Transport_Security) and
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[HPKP](https://en.wikipedia.org/wiki/HTTP_Public_Key_Pinning) using a
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certificate either validated by a trusted third party (in most cases Certificate
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Authorities) or self-signed by the server operator, validated using a
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[DNSSEC](https://en.wikipedia.org/wiki/Domain_Name_System_Security_Extensions) protected
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[DANE](https://en.wikipedia.org/wiki/DNS-based_Authentication_of_Named_Entities)
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record.
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- The "key" used to encrypt the paste is part of the URL. If you publicly post
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the URL of a paste that is not password-protected, everybody can read it.
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Use a password if you want your paste to be private. In this case make sure to
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use a strong password and do only share it privatly and end-to-end-encrypted.
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- A server admin might be forced to hand over access logs to the authorities.
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ZeroBin encrypts your text and the discussion contents, but who accessed it
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first might still be disclosed via such access logs.
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- In case of a server breach your data is secure as it is only stored encrypted on
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the server. However the server could be misused or the server admin could be legally
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forced into sending malicious JavaScript to all web users, which grabs the decryption key
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and send it to the server when a user accesses a ZeroBin.
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Therefore do not access any ZeroBin instance if you think it has been compromised. As long
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as no user accesses this instance with a previously generated URL, the content cannot be
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decrypted.
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## Options
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Some features are optional and can be enabled or disabled in the [configuration
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file](https://github.com/elrido/ZeroBin/wiki/Configuration):
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* Password protection
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* Discussions
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* Expiration times, including a "forever" and "burn after reading" option
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* Markdown format support for HTML formatted pastes
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* Syntax highlighting for source code using prettify.js, including 4 prettify themes
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* File upload support, images get displayed (disabled by default, possibility to adjust size limit)
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* Templates: By default there is a bootstrap CSS and a "classic ZeroBin" theme
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and it is easy to adapt these to your own websites layout or create your own.
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* Translation system and automatic browser language detection (if enabled in browser)
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* Language selection (disabled by default, as it uses a session cookie)
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## Further resources
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* [Installation guide](https://github.com/elrido/ZeroBin/wiki/Installation)
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* [Upgrading from 0.19 Alpha](https://github.com/elrido/ZeroBin/wiki/Upgrading-from-ZeroBin-0.19-Alpha)
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* [Configuration guide](https://github.com/elrido/ZeroBin/wiki/Configuration)
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* [Templates](https://github.com/elrido/ZeroBin/wiki/Templates)
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* [Translation guide](https://github.com/elrido/ZeroBin/wiki/Translation)
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* [Developer guide](https://github.com/elrido/ZeroBin/wiki/Development)
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Run into any issues? Have ideas for further developments? Please
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[report](https://github.com/elrido/ZeroBin/issues) them!
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