Arcitura Education Exam S90.18 Topic 5 Question 65 Discussion

Service A hashes a message, resulting in message digest X. Service A encrypts the message digest X with its private key, resulting ir ciphertext X1. Service A sends the message and X1 to Service B . Service B hashes the message, resulting in message digest Y. Service B decrypts X1 with Service A's public key, recovering message digest X. Service B compares Y with X and finds them to be equal. This proves that: