Imports of package interfaces

PathSynopsis
crypto/randPackage rand implements a cryptographically secure random number generator.
github.com/docker/notary/trustmanager
github.com/docker/notary/tuf/data
github.com/docker/notary/tuf/signed
github.com/stretchr/testify/requirePackage require implements the same assertions as the `assert` package but stops test execution when a test fails.
testingPackage testing provides support for automated testing of Go packages.