Symmetric encryption uses the identical key to both encrypt and decrypt the data. Asymmetric encryption uses two related keys (public and private) for data encryption and decryption, and takes away the security risk of key sharing. PGP is often used for signing, encrypting, and decrypting texts, e-mails, files, directories, and whole disk partitions and to increase the security of e-mail communications. Encryption is the process of using algorithmic schemes to transform plain text...