captcha

const (
	// Default number of digits in captcha solution.
	DefaultLen      = 6
	DefaultDotCount = 30
	// The number of captchas created that triggers garbage collection used
	// by default store.
	CollectNum     = 100
	DefaultMaxSkew = 3
	// Expiration time of captchas used by default store.
	Expiration = 10 * time.Minute
	// Standard width and height of a captcha image.
	StdWidth  = 240
	StdHeight = 80
)