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Cryptology Academy · Lesson

Symmetric Encryption

Understanding encryption using a single shared key.

1

Symmetric Encryption

Symmetric encryption is a cryptographic method where the same key is used for both encryption and decryption.

Symmetric Encryption — illustration 1

2

How It Works

A single secret key is shared between the sender and receiver. The sender encrypts the message, and the receiver decrypts it using the same key.

All lessons in this course

  1. Symmetric Encryption
  2. Asymmetric Encryption
  3. Hash Functions
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