Answer:
The correct answer is PGP i.e "Pretty Good Privacy" .
Step-by-step explanation:
Pretty Good Privacy is an encryption algorithm that gives the database interaction with the confidentiality and authorization.Pretty Good Privacy is security algorithm which gives the security into the mail . login ,decryption ,encryption are the example of the "Pretty Good Privacy" .
Pretty Good Privacy is a type of hybrid cryptosystem that incorporates cryptographic algorithms and it has de facto open source standard for the mail and the file storage .