Secure web of things based on a lightweight Algorithm

There are so many modern technologies for the future, the most important one to look for is the web of things (with), this technology supposed to connect billions of devices with lead to a massive number of communication between the devices that will produce a huge amount of the information but come with that another type of challenge which is protecting this information from being at risk. We need to put in mind that this device is small in shape and uses low power so when we use numerous rounds to encrypt the data it is will be expensive also it will be very complicated, as you know when we use less complex calculations, we may put the integrity in risk. We propose an algorithm based on lightweight encryption named (LWAES). The first goal of the LWAES scheme is to Highest speed in the encryption and decryption. The Mix Columns stage is the most computational demanding stage in the AES design, and therefore it consumes most of the time needed for encryption and decryption. In the LWAES design, the Mix Columns stage is replaced by simple SHIFT operations. This operation takes the time from the beginning of reading the sensors to the moment they were retrieved to the user 1–8 seconds. In addition to that, the modified LWAES algorithm provides good security With speed in the encryption process and lightweight in the storage process.