Difference between Symmetric and Asymmetric encryption

Basis of Comparison Symmetric Encryption Asymmetric Encryption
Encryption key Same key for encryption & decryption Different keys for encryption & decryption
Performance Encryption is fast but more vulnerable Encryption is slow due to high computation
Algorithms DES, 3DES, AES and RC4 Diffie-Hellman, RSA
Purpose Used for bulk data transmission Often used for securely exchanging secret keys

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