Client

local EncrKey = "AKOFSJNPOAILSFN"
local Remote = game.JointsService:WaitForChild("RemoteThing")

function decrypt(cipher, key)
	local key_bytes
	if type(key) == "string" then
		key_bytes = {}
		for key_index = 1, #key do
			key_bytes[key_index] = string.byte(key, key_index)
		end
	else
		key_bytes = key
	end
	local cipher_raw_length = #cipher
	local key_length = #key_bytes
	local cipher_bytes = {}
	local cipher_length = 0
	local cipher_bytes_index = 1
	for byte_str in string.gmatch(cipher, "%x%x") do
		cipher_length = cipher_length + 1
		cipher_bytes[cipher_length] = tonumber(byte_str, 16)
	end
	local random_bytes = {}
	local random_seed = 0
	for key_index = 1, key_length do
		random_seed = (random_seed + key_bytes[key_index] * key_index) * 1103515245 + 12345
		random_seed = (random_seed - random_seed % 65536) / 65536 % 4294967296
	end
	for random_index = 1, (cipher_length - key_length + 1) * key_length do
		random_seed = (random_seed % 4194304 * 1103515245 + 12345)
		random_bytes[random_index] = (random_seed - random_seed % 65536) / 65536 % 256
	end
	local random_index = #random_bytes
	local last_key_byte = key_bytes[key_length]
	local result_bytes = {}
	for cipher_index = cipher_length, key_length, -1 do
		local result_byte = cipher_bytes[cipher_index] - last_key_byte
		if result_byte < 0 then
			result_byte = result_byte + 256
		end
		result_byte = result_byte - random_bytes[random_index]
		random_index = random_index - 1
		if result_byte < 0 then
			result_byte = result_byte + 256
		end
		for key_index = key_length - 1, 1, -1 do
			cipher_index = cipher_index - 1
			local cipher_byte = cipher_bytes[cipher_index] - key_bytes[key_index]
			if cipher_byte < 0 then
				cipher_byte = cipher_byte + 256
			end
			cipher_byte = cipher_byte - result_byte
			if cipher_byte < 0 then
				cipher_byte = cipher_byte + 256
			end
			cipher_byte = cipher_byte - random_bytes[random_index]
			random_index = random_index - 1
			if cipher_byte < 0 then
				cipher_byte = cipher_byte + 256
			end
			cipher_bytes[cipher_index] = cipher_byte
		end
		result_bytes[cipher_index] = result_byte
	end
	local result_characters = {}
	for result_index = 1, #result_bytes do
		result_characters[result_index] = string.char(result_bytes[result_index])
	end
	return table.concat(result_characters)
end
function encrypt(message, key)
	local key_bytes
	if type(key) == "string" then
		key_bytes = {}
		for key_index = 1, #key do
			key_bytes[key_index] = string.byte(key, key_index)
		end
	else
		key_bytes = key
	end
	local message_length = #message
	local key_length = #key_bytes
	local message_bytes = {}
	for message_index = 1, message_length do
		message_bytes[message_index] = string.byte(message, message_index)
	end
	local result_bytes = {}
	local random_seed = 0
	for key_index = 1, key_length do
		random_seed = (random_seed + key_bytes[key_index] * key_index) * 1103515245 + 12345
		random_seed = (random_seed - random_seed % 65536) / 65536 % 4294967296
	end
	for message_index = 1, message_length do
		local message_byte = message_bytes[message_index]
		for key_index = 1, key_length do
			local key_byte = key_bytes[key_index]
			local result_index = message_index + key_index - 1
			local result_byte = message_byte + (result_bytes[result_index] or 0)
			if result_byte > 255 then
				result_byte = result_byte - 256
			end
			result_byte = result_byte + key_byte
			if result_byte > 255 then
				result_byte = result_byte - 256
			end
			random_seed = (random_seed % 4194304 * 1103515245 + 12345)
			result_byte = result_byte + (random_seed - random_seed % 65536) / 65536 % 256
			if result_byte > 255 then
				result_byte = result_byte - 256
			end
			result_bytes[result_index] = result_byte
		end
	end
	local result_buffer = {}
	local result_buffer_index = 1
	for result_index = 1, #result_bytes do
		local result_byte = result_bytes[result_index]
		result_buffer[result_buffer_index] = string.format("%02x", result_byte)
		result_buffer_index = result_buffer_index + 1
	end
	return table.concat(result_buffer)
end

print("Invoking")

Remote:InvokeServer(EncrKey,encrypt("Print",EncrKey),encrypt("Okay we want this to print",EncrKey))