5dca6d1e3d
Use SecureRandom instead of Random since Random is time based and can increase the chance of generating same MAC address across multiple devices. createRandomUnicastAddress should randomize all bits of the address, except for locally assigned bit and unicast bit. The previous method that only randomizes NIC and use Google Base OUI is renamed to createRandomUnicastAddressWithGoogleBase. Bug: 72450936 Test: runtest frameworks-net Change-Id: Icda650638c2c1c9fd90d509a87e86347c0e05f2d