Cryptography
I hope you are doing well. My topic is cryptography, and I am going to write about cryptography, which is an interesting topic. How to secure information when it is being send to another place so that no one can access it.
All the algorithms that are being used in computer science to secure information and data in the present day come from cryptography. In old age when official letters were sent from one place to another. The information written in it was very important, and there was a fear that no one authorized to read it or that information would be leaked. So, to get rid of this fear that actual information was replaced with another type text and that text is called cipher text. This text was written in code words instead of the actual words in symbols or with any other words, this thing was called cryptography. For this process, different mathematical equations are also used, and difference symbols are also used, which, instead of the original data, are changed into some other words, numbers, or specific symbols.
The first cryptography in the history of the world was used in Egypt, which was used in the era of 1900 BC. It used to be that the information was private between the sender and the receiver, on reaching the location, the reader first decodes it and uses the key that was previously specified between the two parties sender and receuver to decode it, then unlocks the letter with the same key. It would be changed in its original form and in its original words so that, after reading it, he could understand what was written in it.
Have you ever used cryptography?
if yes then write in comment...
