Based on working through each of these methods, discuss why the need for communication security protocols is significant. First, decode each of the ciphers. Second, discuss how communication security measures are built upon these principles. Third, discuss which existing communication security protocol you believe bears the greatest significance with regard to the level of protection that is offered. Finally, in responding to your peers’ posts, discuss whether or not you believe there are any communication security protocols that were not mentioned but are of a greater significance.

Part d: float check string has a method s.isdigit() that returns true if string s contains only digits and false otherwise, i.e. s is a string that represents an integer. write a function named float_check that takes one parameter that is a string and returns true if the string represents a float and false otherwise. for the purpose of this function we define a float to be a string of digits that has at most one decimal point. note that under this definition an integer argument will return true. remember “edge cases” such as “45.” or “.45”; both should return true. for example: float_check('1234') returns true float_check('123.45') returns true float_check('123.45.67') returns false float_check('34e46') returns false float_check('.45') returns true float_check('45.') returns true float_check('45..') returns false