Encryption enables users to encode data, making it secure from unauthorized viewers. Encryption provides a private and secure method of communication over the Internet.
A special type of encryption known as Public Key Encryption (PKE) comprises a public and a private key for encrypting and decrypting data. With public key encryption, an entity, such as a secure Web site, generates a public and a private key. A secure Web server sends a public key to a user who accesses the Web site. The public key allows the user’s Web browser to decrypt data that had been encrypted with the private key. The user’s Web browser can also transparently encrypt data using the public key and this data can only be decrypted by the secure Web server’s private key.
Public key encryption allows the user to confirm the identity of the Web site through an SSL certificate. After a user contacts the SMA appliance, the appliance sends the user its own encryption information, including an SSL certificate with a public encryption key.
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