Basic information of cryptography
Cryptograthy is used for security. Simply Cryptography is converting the understanable text to not understanable text.
Encryption means converting plaintext into cipher text.
Decryption means converting cipher text into plain text.
Purpose of cryptograthy
Cryptography is used to protect the data from theft. And also used for user authentication.
Types of Cryptographic algorithms
There are 3 types of cryptographic algorithm. They are
- Secret Key Cryptography
- Public Key Cryptography
- Hash Functions
Secret Key Cryptography:
This cryptography is also known as Symmetric. Uses single key for both encryption and decryption.
Public Key Cryptography
This cryptography is also known as Asymmetric. Uses Two key for encryption and decryption. One for encryption and other for decryption.
This type uses mathematical transformation to encrypt and decrypt the data.
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