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Lecture Notes on Introduction to Cryptography

What is the introduction of cryptography?
The art and science of concealing the messages to introduce secrecy in information security is recognized as cryptography.
A message is plaintext (sometimes called cleartext).
The process of disguising a message in such a way as to hide its substance is encryption.
An encrypted message is ciphertext.
What is cryptography notes?
Cryptography is the process of hiding or coding information so that only the person a message was intended for can read it.
The art of cryptography has been used to code messages for thousands of years and continues to be used in bank cards, computer passwords, and ecommerce.
What are the basics of cryptography?
The basic idea behind cryptography is to use an encryption key to encrypt information so that only those who have access to it can read it.
All other people will see random letters instead of the original message.
To decrypt a message, all you need is the correct key.
It is pretty challenging and requires good math/proof skills, but still quite fun.
The course could use more study materials, for example lecture notes.
Wonderful introduction to cryptography in little time.

What is the introduction of cryptography?