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There are various methods used for secure communications over the Internet. Though they all vary. It is important to remember how critical these types of secure sessions are to the integrity of the net as a whole. Symmetric Encryption Symmetric encryption is an encryption method that has been around for a long time. “A secret key, which can be a number, a word, or just a string of random letters, is applied to the text of a message to change the content in a particular way.” This might be as simple as shifting each letter by a number of places in the alphabet. As long as both sender and recipient know the secret key, they can encrypt and decrypt all messages that use this key. Asymmetric Encryption There is a problem with symmetric encryption. A hacker, or any one for that matter, who knows the secret key can decrypt the message that was sent to you or even from you. Enter asymmetric encryption, in which there are two related keys, known as a key pair. “A public key is made freely available to anyone who might want to send you a message. A second, private key is kept secret, so that only you know it.” A message sent, in fact any message including text files, binary files, or documents, that are encrypted by using the public key can only be decrypted by applying the same algorithm.
Approximate Word count = 800
Approximate Pages = 3.2
(250 words per page double spaced)
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