1. With symmetric encryption, the same key is used for both encoding and decoding.
2. It requires more processing power than asymmetric encryption.
3. It is difficult to share a key over the Internet in symmetric encryption.
4. It is impossible to create digital signatures using symmetric encryption.
Answer: With symmetric encryption, the same key is used for both encoding and decoding.
Explanation:
Symmetric encryption is a type of data encryption where the same key is used both to encode data and to decode it. This key is typically kept secret by the sender and the recipient, and it is important that this key is not compromised in order to maintain security. One downside to symmetric encryption is that it can take longer to encrypt and decrypt data using this method than using a different type of encryption. Additionally, symmetric encryption is not as secure as other types of encryption, such as public-key cryptography, which uses two separate keys to encrypt and decrypt data.
