funcList¶

func List(pkgstring) []string

List returns the names of all alternative implementations registered for thegiven package, whether available or not. The implicit base implementation isnot included.

funcPackages¶added ingo1.25.0

func Packages() []string

Packages returns the list of all packages for which alternativeimplementations are registered.

funcRegister¶

func Register(pkg, namestring, available *bool)

Register records an alternative implementation of a cryptographic primitive.The implementation might be available or not based on CPU support. Ifavailable is false, the implementation is unavailable and can't be tested onthis machine. If available is true, it can be set to false to disable theimplementation. If all alternative implementations but one are disabled, theremaining one must be used (i.e. disabling one implementation must notimplicitly disable any other). Each package has an implicit baseimplementation that is selected when all alternatives are unavailable ordisabled. pkg must be the package name, not path (e.g. "aes" not "crypto/aes").

funcReset¶

func Reset(pkgstring)

funcSelect¶

func Select(pkg, namestring)bool

Select disables all implementations for the given package except the onewith the given name. If name is empty, the base implementation is selected.It returns whether the selected implementation is available.