Which two algorithms are examples of symmetric encryption?

The selection of AES and DES as symmetric encryption algorithms is accurate because both are designed to use the same key for both encryption and decryption processes. Symmetric encryption algorithms require that the sender and recipient share a secret key, which is used to transform plaintext into ciphertext and vice versa.

AES (Advanced Encryption Standard) is a widely adopted encryption standard that provides a strong level of security and can handle various key sizes, including 128, 192, and 256 bits. It is efficient for encrypting large amounts of data. DES (Data Encryption Standard), while now considered less secure and largely replaced by AES, also follows the symmetric encryption model, utilizing a fixed key size of 56 bits to encrypt data.

Neither RSA (Rivest-Shamir-Adleman) nor ECC (Elliptic Curve Cryptography) belong to symmetric encryption algorithms. Both RSA and ECC are asymmetric encryption algorithms that use a pair of keys – a public key for encryption and a private key for decryption. This distinction is crucial in understanding the differences between symmetric and asymmetric cryptography.