# Cryptography : Computer And Science Of Breaking Encoded Data Essay

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Cryptography:-
If you want to keep information secret, you have two possible strategies: hide the existence of the information, or make the information unintelligible. Cryptography is the art and science of keeping information secure from unintended audiences, of encrypting it. Conversely, cryptanalysis is the art and science of breaking encoded data. The branch of mathematics encompassing both cryptography and cryptanalysis is cryptology.
Modern cryptography uses sophisticated mathematical equations (algorithms) and secret keys to encrypt and decrypt data.

Encryption Decryption

Today, cryptography is used to provide secrecy and integrity to our data, and both authentication and anonymity to our communications.
Types of Cryptography:-
There are a few methods for grouping cryptographic calculations. For purposes of this paper, they will be classified focused around the quantity of keys that are utilized for encryption and decoding, and further characterized by their application and utilization. The three sorts of calculations that will be examined are:
• Secret Key Cryptography (SKC): Uses a single key for both encryption and decryption
• Public Key Cryptography (PKC): Uses one key for encryption and another for decryption
• Hash Functions: Uses a mathematical transformation to irreversibly "encrypt" information

Secret Key Cryptography:-
With Secret key cryptography, a solitary key is utilized for both encryption and