Encryption is the process of using an Encryption Algorithm or Cryptographic Algorithm to transform information to make it unreadable for unauthorized users. This cryptographic method protects sensitive Plaintext such as credit card numbers by encoding and transforming information into unreadable Ciphertext. This encoded data may only be decrypted or made readable with a key. Symmetric-key and asymmetric-key are the two primary types of encryption.
Encryption is essential for ensured and trusted delivery of sensitive information.