ISC2 Exam ISSAP Topic 6 Question 59 Discussion

widely distributed. A message encrypted with a recipient's public key cannot be decrypted by anyone except the owner of that key and the

person associated with the public key used. This is used for confidentiality. A message signed with a sender's private key can be verified by

anyone who has access to the sender's public key.

Answer options A and C are incorrect. Because of the asymmetric behavior of the keys, the secret key can encrypt a message, and anyone

with the public key can decrypt it. The distinguishing technique used in public key-private key cryptography is the use of asymmetric key

algorithms because the key used to encrypt a message is not the same as the key used to decrypt it.