Arduino: Crashes and errors when concatenating Strings
问题 I try to concatenate the output of AES-256 encryption to a string (to compare this string against the encrypted String sent from an Android phone). Basically, the concatination seems to work, but after a few runs errors (non readable characters, string getting shorter instead of longer) or crashes occur. It is reproducible, crashes at the exact same point after restart. I extracted some lines of Arduino code that demonstrate the problem. It does the following: Create a random number and write