Package rand
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Reader is an io.Reader that calls drbg.Read.
It should be used internally instead of crypto/rand.Reader, because the latter can be set by applications outside of tests. These applications then risk breaking between Go releases, if the way the Reader is used changes.
var Reader io.Reader = reader{}
func CustomReader
func CustomReader(r io.Reader) io.Reader
CustomReader returns Reader or, only if the GODEBUG setting "cryptocustomrand=1" is set, the provided io.Reader.
If returning a non-default Reader, it calls randutil.MaybeReadByte on it.
func IsDefaultReader
func IsDefaultReader(r io.Reader) bool
IsDefaultReader reports whether r is the default crypto/rand.Reader.
If true, the Read method of r can be assumed to call drbg.Read.
func SetTestingReader
func SetTestingReader(r io.Reader)
SetTestingReader overrides all calls to drbg.Read. The Read method of r must never return an error or return short.
SetTestingReader panics when building against Go Cryptographic Module v1.0.0.
SetTestingReader is pulled by testing/cryptotest.setGlobalRandom via go:linkname.