Cryptography, A Form Of Protecting Data Stored Or Being Transmitted
So the word,” information” when encrypted with this method will be rmulinzgrlm
Different type of cryptography have been deployed in the past throughout civilization, but we could see today that cryptography, according to this chapter, is part of our daily living and scheme of work. Protection is very important and crucial to every organizations, individual and even homes, and because of the increased literacy level toady compared to the years past, the encryption mechanism has been very intense and deep.
However, this chapter discussed about the symmetric encryption ciphers. It indicated that the symmetric encryption ciphers are in two phases, the substitution, and transposition (also called permutation).
• Substitution cipher - This…