Basically you are wrong here, you are conflating entropy and randomness!bwinkel67 wrote:The problem with true randomness is that when you encrypt something you can't decrypt it. What you want is the appearance of true randomness. There are lots of tests in the field of cryptography (mathematics) to address that. But in the end, if you can'f find the needle in the haystack then it's kind of worthless. So you may be conflating the idea o true randomness with the idea of pseudo randomness having all the properties of true randomness, which is what you want.XorA wrote:Hell no, crypto really likes true random for exactly the opposite of that reason.repeatability and for cryptography and software engineering you want that
Remember that cryptography is an algorithmic solution and implemented in software. Hardware implementations are just more efficient implementations of that but AES is implemented in your version of SSH and by that nature they can't be implementing true randomness, just the appearance of it.
Your crypto keys almost certainly these days were generated from a true random generator on any modern OS on any modern CPU. Otherwise you get into the problem of guessable keys. (looking at you RiscOS and debian)