Which of the following encryption method uses the same key to encrypt and decrypt the data? O Data Encryption O Symmetric Block Cipher Asymmetric

Symmetric encryption has both benefits and drawbacks. What factors need to be taken into account while deciding on a kind of encryption?

q12-  The security of symmetric encryption depends on the secrecy of the algorithm, not the secrecy of the key as the key is shared between the sender and receiver. Select one: True False

q11- One type of cryptographic algorithm splits the plaintext into equal sized parts before mixing in the key and encrypting each part individually. Which of the following ciphers works in this manner? a. DHE b. MD5 c. RSA d. RC4 e. AES