Limits
These limits are sealed into the file, and cannot be changed after upload. The server
stops serving the file and deletes it when the first one is reached.
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Stretching the passphrase
Argon2id turns the passphrase into a key using 64 MiB of memory. It is slow on
purpose: every guess at the passphrase costs this much, for anyone who gets the link and the
file without it. Usually 1–3 seconds on a phone.
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Encrypting on this device
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Uploading
Uploaded
This link is the whole key. Anyone who has all of it
can open the file, and nothing else is asked for, so share it only with the people who should have the file.
This link alone does not open the file: the
passphrase is needed too. Send the passphrase by a different route from the link.
The part after the # is the key to the file. It never reaches
the server: browsers do not send it.
Owner token. Save this token now. It is shown once.
It is the only way to delete the file before it expires, and it cannot be recovered: the
server keeps only a fingerprint of it.