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Encryption

Definition

The process of encoding information so only authorized parties can access it.

Deep Dive

Encryption is the crucial process of encoding information or data in such a way that only authorized parties can access it. It transforms readable data, known as plaintext, into an unreadable, scrambled format called ciphertext, using an algorithm (cipher) and an encryption key. This transformation is fundamental to cybersecurity, as it ensures the confidentiality, integrity, and authenticity of data, protecting it from unauthorized disclosure or modification during storage or transmission.

Examples & Use Cases

  • 1HTTPS encrypting data transmitted between a web browser and a website server
  • 2End-to-end encryption used in messaging apps like WhatsApp
  • 3Full disk encryption protecting data on a lost or stolen laptop

Related Terms

DecryptionCryptographyHashing

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