Which of the following is a type of encryption that has two different keys. One key can encrypt the message and the other key can only decrypt it?

Which of the following is a type of encryption that has two different keys. One key can encrypt the message and the other key can only decrypt it?
A . Block cipher
B. Asymmetric
C. Symmetric
D. Stream cipher

View Answer

Answer: B

Explanation:

Asymmetric

Public-key cryptography, or asymmetric cryptography, is a cryptographic system that uses pairs of keys: public keys, which may be disseminated widely, and private keys, which are known only to the owner. The generation of such keys depends on cryptographic algorithms based on mathematical problems to produce one-way functions. Effective security only requires keeping the private key private; the public key can be openly distributed without compromising security.