passchecker

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passchecker

Simple password strength checker

Documentation

Index

• Variables
• type Password
  • func New() (r *Password)
  • func NewWithParameters(weightOfCharacters map[rune]float64, characterSequence string) (r *Password)
  • func (p *Password) GetStrength(password string) (strength float64, strengthPercent float64)

Variables

var (
	// EnUS map with character strength in enUS
	EnUS = map[rune]float64{
		'e': 0.87298,
		't': 0.90944,
		'a': 0.91833,
		'o': 0.92493,
		'i': 0.93034,
		'n': 0.93251,
		's': 0.93673,
		'h': 0.93906,
		'r': 0.94013,
		'd': 0.95747,
		'l': 0.95975,
		'c': 0.97218,
		'u': 0.97242,
		'm': 0.97594,
		'w': 0.97640,
		'f': 0.97772,
		'g': 0.97985,
		'y': 0.98026,
		'p': 0.98071,
		'b': 0.98508,
		'v': 0.99022,
		'k': 0.99228,
		'j': 0.99847,
		'x': 0.99850,
		'q': 0.99905,
		'z': 0.99926,
		'E': 0.87298,
		'T': 0.90944,
		'A': 0.91833,
		'O': 0.92493,
		'I': 0.93034,
		'N': 0.93251,
		'S': 0.93673,
		'H': 0.93906,
		'R': 0.94013,
		'D': 0.95747,
		'L': 0.95975,
		'C': 0.97218,
		'U': 0.97242,
		'M': 0.97594,
		'W': 0.97640,
		'F': 0.97772,
		'G': 0.97985,
		'Y': 0.98026,
		'P': 0.98071,
		'B': 0.98508,
		'V': 0.99022,
		'K': 0.99228,
		'J': 0.99847,
		'X': 0.99850,
		'Q': 0.99905,
		'Z': 0.99926,
		'1': 0.98700,
		'2': 0.98600,
		'3': 0.98500,
		'4': 0.98400,
		'5': 0.98300,
		'6': 0.98200,
		'7': 0.98100,
		'8': 0.98000,
		'9': 0.97900,
		'0': 0.97800,
	}

	// EnUSSequence order of characters
	EnUSSequence = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890"

	EnUSStrengthRangeStart = 6.0
	EnUSStrengthRangeEnd   = 10.0
)

Types

type Password

type Password struct {
	WeightOfCharacters map[rune]float64
	CharacterSequence  string
	StrengthRangeStart float64
	StrengthRangeEnd   float64
}

Password define parameters to determine password strength

func New

func New() (r *Password)

New instanciate a password object

func NewWithParameters

func NewWithParameters(weightOfCharacters map[rune]float64, characterSequence string) (r *Password)

NewWithParameters instanciate a password object with parameters

func (*Password) GetStrength

func (p *Password) GetStrength(password string) (strength float64, strengthPercent float64)

GetStrength returns a value that represents the strength of a password, the greater the number the greater the strength of the password