Ever wanted to securely send a password to someone who didn't have GnuPG?
Enter KeeDrop: each secret can only be retrieved once and only for 24h after
it was stored. Additionally, it is encrypted in a way that ensures that the
server operator will not be able to decrypt the password.
The only way to be more secure is to use GnuPG or other end-to-end encryption
with key verification.
Security features
State-of-the-art encryption technology: Curve25519-XSalsa20-Poly1305, courtesy of TweetNaCl.
The server never sees the unencrypted secret
Automatically expunge data after 24h
Alternatively, data is deleted on retrieval
Doesn't track you with analytics
What it cannot defend against:
Malicious software (browser extensions, keylogger etc) on the senders or recipients computer.
Someone intercepting the link and retrieving the secret. But at least you'll know about it.