Sharelock allows sharing data easily and securely. You type a secret, the e-mail or twitter handle of the person/s you want to share this with and an encrypted link (URL) will be generated. The URL can be shared with anyone but ultimately the recipients will have to verify their identity (by logging in using Google, Facebook, Microsoft Account or Twitter).
Sharelock is an open source application. The data that you share is encrypted and signed with cryptographic keys (AES 256 CBC). Urls are ephemeral, they are NOT stored anywhere (neither your secrets). The content you share lives encrypted in the URL.