Champagne_U4_Submission.pptx

# Champagne_U4_Submission.pptx - SECURITY MECHANISMS By Dylan...

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SECURITY MECHANISMS By: Dylan Champagne American Intercontinental University ITAS362

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HISTORY OF ENCRYPTION The method used by the Romans was called a Shift Cipher and entailed taking a message and shifting the letters of that message a number of set places in the alphabet. The modern day equivalent is ROT13. (Pratt, 2012) This Photo by Unknown Author is licensed under CC BY-SA
SYMMETRIC VS PUBLIC KEY Symmetric Key This is the simplest kind of encryption that involves only one secret key to cipher and decipher information. Symmetrical encryption is an old and best-known technique. It uses a secret key that can either be a number, a word or a string of random letters. (SSLInformation, 2019) The main disadvantage of the symmetric key encryption is that all parties involved have to exchange the key used to encrypt the data before they can decrypt it. (SSLInformation, 2019) Public Key Public-key cryptography, or asymmetric cryptography, is an encryption scheme that uses two mathematically related,

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• Fall '15
• Cryptography, Public-key cryptography, Pretty Good Privacy, GlobalSign, USES OF PUBLIC KEY

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