rng

Documentation

Index

• Variables
• func UpdateLinuxRandomness(recoverer recovery.Recoverer) error

Variables

var (
	// HwRandomCurrentFile shows/sets the current
	// HW random number generator
	HwRandomCurrentFile = "/sys/class/misc/hw_random/rng_current"
	// HwRandomAvailableFile shows the current available
	// HW random number generator
	HwRandomAvailableFile = "/sys/class/misc/hw_random/rng_available"
	// RandomEntropyAvailableFile shows how much of the entropy poolsize is used
	RandomEntropyAvailableFile = "/proc/sys/kernel/random/entropy_avail"
	// EntropyFeedTime sets the loop time for seeding /dev/random by /dev/hwrng
	// in seconds
	EntropyFeedTime = 2 * time.Second
	// EntropyBlockSize sets the bytes to read per Read function call
	EntropyBlockSize = 128
	// EntropyThreshold is used to stop seeding at specific entropy level
	EntropyThreshold uint64 = 3000
	// RandomDevice is the linux random device
	RandomDevice = "/dev/random"
	// HwRandomDevice is the linux hw random device
	HwRandomDevice = "/dev/hwrng"
)

Functions

func UpdateLinuxRandomness

func UpdateLinuxRandomness(recoverer recovery.Recoverer) error

UpdateLinuxRandomness seeds random data from /dev/hwrng into /dev/random based on a timer and the entropy pool size