Data Encryption

- Data Encryption is conversion of data into code for compression or confidentiality or security.

- Conversion of electronic data into another form, called ciphertext

- Which can only be understood by authorized parties.

- Primary purpose is to protect the data transmitted via internet or other networks.

- Encryption is the most effective way to achieve data security.

- To read encrypted file, we need secret key to decrypt it.

- Unencrypted data is called plain text.

- Encrypted data is called cipher text.

1. Symmetric Cryptography

Uses same key for encryption and decryption

1. Asymmetric Cryptography

Uses Public key for encryption and private key for decryption