Encryption is the process of:
a. detecting errors in messages by means of mathematical rules
b. disguising information by the use of mathematical rules, known as algorithms
c. preventing errors in messages by means of logical rules
d. transmission of information over secure lines in analog form to prevent illegal access
e. correcting errors in message by means of mathematical rules

Write code using c . (take input from user) calculate the size of a given file in kbs. in this task you will complete the function with the following prototype: float get_file_size(char * filename); the function takes the file name (address to the start of a null terminated character array) as input. the function should then open the file and find the number of bytes it contains till eof. the number of bytes divided by 1024 will give the size in kbs. if the file cannot be opened the function should return -1.

What are the 12 colors of the spectrum called?

What is the process in which the software development team compiles information to determine the final product