Which answer is not true for diffie-hellman algorithm? a. security stems from the difficulty of calculating the product of two large prime numbers. b. it was the first public key exchange algorithm. c. it is vulnerable to man-in-the-middle attacks. d. it is used for distribution of a shared key, not for message encryption and decryption.

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.

there are indirect ways of affecting state laws   by with holding funding's. and that's why we have a 55mph speed on the high way with a design of 70mph speed.