62 lines
3.0 KiB
Markdown
62 lines
3.0 KiB
Markdown
# [](https://privatebin.info/)
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**PrivateBin** is a minimalist, open source online
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[pastebin](https://en.wikipedia.org/wiki/Pastebin)
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where the server has zero knowledge of pasted data.
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Data is encrypted and decrypted in the browser using 256bit AES in
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[Galois Counter mode](https://en.wikipedia.org/wiki/Galois/Counter_Mode).
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This is a fork of ZeroBin, originally developed by
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[Sébastien Sauvage](https://github.com/sebsauvage/ZeroBin). PrivateBin was
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refactored to allow easier and cleaner extensions and has many additional
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features. 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 PrivateBin
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without losing any data.
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## What PrivateBin 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 plausible deniability of
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any of the pastes content. If requested or enforced, you can delete any paste
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from 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 not to inject any
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malicious code. For security, a PrivateBin installation *has to be used over*
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*HTTPS*! Otherwise you would also have to trust your internet provider, and
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any jurisdiction the traffic passes through. Additionally the instance should
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be secured by
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[HSTS](https://en.wikipedia.org/wiki/HTTP_Strict_Transport_Security). It can
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use traditional certificate authorities and/or use a
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[DNSSEC](https://en.wikipedia.org/wiki/Domain_Name_System_Security_Extensions)
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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, anyone can read it.
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Use a password if you want your paste to remain private. In that case, make
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sure to use a strong password and share it privately and end-to-end-encrypted.
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- A server admin can be forced to hand over access logs to the authorities.
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PrivateBin encrypts your text and the discussion contents, but who accessed a
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paste (first) might still be disclosed via access logs.
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- In case of a server breach your data is secure as it is only stored encrypted
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on the server. However, the server could be absused or the server admin could
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be legally forced into sending malicious code to their users, which logs
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the decryption key and sends it to a server when a user accesses a paste.
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Therefore, do not access any PrivateBin instance if you think it has been
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compromised. As long as no user accesses this instance with a previously
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generated URL, the content can't be decrypted.
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