Can SymmetricKey be used as substitute for SecRandomCopyBytes? I found this code snippet in WWDC19 video
var key = Array(repeating: 0, count: 32) let err = SecRandomCopyBytes(kSecRandomDefault, keyByteCount, &key) memset_s(&key, 32, 0, 32)
and then use this as substitute:
let key = SymmetricKey(size: .bits256)
Documentation for SymetricKey is quite lean. So I am not sure is it safe to use SymmetricKey as CPRNG? If yes, why? Thank you!