Symmetric encryption is the hoariest technique of encryption. In this method, the sender and receiver share a single key for the encryption and decryption of data. Symmetric encryption is simple and faster, but the key is exchanged securely as both parties share the secret to keep information private. Therefore, Symmetric encryption is also named a secret key algorithm. However, the main limitation of symmetric encryption is to share a key in a secure environment. Therefore, public-key cryptography (Asymmetric encryption) was introduced to avoid this.

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