Generate a link for your message that can only be used once! Your message will be end-to-end encrypted so only you and the recipient can see the message.
Send this link to someone you trust. Don't go to it yourself or it won't work anymore!
FlashPaper is a tool for sending self-destructing messages with end-to-end encryption.
When you create a message with FlashPaper, you get a link that you can send to anyone else (by email, slack, etc.). When the recipient clicks that link they see the message you sent them but that link can then never be used again. If the sender, recipient, or anyone else tries to use that link they will only see an error. Messages that have been left unviewed for 7 days will also be automatically deleted.
To further protect your messages, FlashPaper uses end-to-end encryption meaning that the FlashPaper service never actually sees your message. When it is created it gets encrypted in the browser before it is sent to FlashPaper and stored. The decryption key is part of the link sent to the recipient. When a message is viewed, the encrypted version of it is fetched from the server (assuming it has not already been viewed) and then gets decrypted in the browser. Thus, the server never sees the plaintext message or the decryption key. Only the sender and receiver will ever have the ability to see the message.
FlashPaper was written from scratch but is based on go-flashpaper and ZeroBin. If you are interested in other similar projects, also check out Firefox Send.
FlashPaper is open source software. Learn more about FlashPaper on GitHub!
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