Some organizations need to transmit sensitive data between their departments/users. Such data may be personal details, work evaluation or even medical conditions. It is important for such data to be delivered and be seen only by its recipient and not by anybody else.
One true and tested way for such data transmission is to use GPG. The data will be encrypted with the recipient's public key and only the recipient, using his private key will be able to decrypt and read it.
PGP is an old protocol that works fine with email and even after all these years if it considered by security experts as extremely secure. However it is heavily criticized because it is difficult to use properly leading to security breaches due to usage errors. Also, in order to properly use it and avoid mistakes the PGP user must understand some things about how the public key cryptography is working. This is not an easy task for the non technical user.
This web application wants to build on PGP's security but also offer a simple enough work flow to minimize errors and security breaches even for less security aware users.