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AndroidSystemCore
Nick Kralevich authored
It's a security best practice to carry entropy across reboots. (see "man 4 random"). Currently, entropy saving and mixing occur in the system_server, via the EntropyMixer code. Unfortunately, the EntropyMixer code runs fairly late in the boot process, which means early boot doesn't have high quality entropy. This has caused security problems in the past. Load entropy data as soon as we can in the early boot process, so that we can get /dev/random / /dev/urandom into a "random" state earlier. Bug: 9983133 Change-Id: Id4a6f39e9060f30fe7497bd8f8085a9bec851e80