otp

package module

v1.0.0 Latest Latest Go to latest Published: Oct 19, 2020 License: MIT Imports: 9 Imported by: 0

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Repository

github.com/zxdev/otp

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Open Source Insights

README ¶

One Time Pass

This one time token generator is based off RFC 4226 and generates tokens based on a shared secret and the time interval.

Variables

Interval - default 30-seconds
Entropy - number of bytes for Secret; default 20

Functions

Sizer - specify the number of digits to emit; default 6
Secret - random secret generator; eg. AW6TJVTYMAYJXLWFW2WWJ6D3Q5B2AY25
HOTPToken - generation requires a secret and an interval timeframe
Token - is a HOTPToken with current Interval seed
Tokens - is a HOTPToken with a bracketed last|now|next current Interval seed range


func main() {

  secret := "secretsecretsecret"

  fmt.Println(otp.Token(secret))  // 397657
  fmt.Println(otp.Tokens(secret)) // [755604 397657 140422]

  otp.Sizer(10)

  fmt.Println(otp.Token(secret))  // 1545628642
  fmt.Println(otp.Tokens(secret)) // [0511092633 1545628642 1383583942]
  
}

Documentation ¶

Index ¶

Variables
func HOTPToken(secret string, interval int64) string
func Secret() string
func Sizer(n int)
func Token(secret string) string
func Tokens(secret string) [3]string

Constants ¶

This section is empty.

Variables ¶

View Source

var Entropy = 20

Entropy bytes for Secret generation; default 20

View Source

var Interval = time.Second * 30

Interval timeframe; default 30-second

Functions ¶

func HOTPToken ¶

func HOTPToken(secret string, interval int64) string

HOTPToken generation requires a secret and a timeframe interval

func Secret ¶

func Secret() string

Secret generator; default 20 Entropy bytes eg. AW6TJVTYMAYJXLWFW2WWJ6D3Q5B2AY25

func Sizer ¶

func Sizer(n int)

Sizer configures the package level otp digit size; default 6

func Token ¶

func Token(secret string) string

Token is a HOTPToken with an Interval seed

func Tokens ¶

func Tokens(secret string) [3]string

Tokens is a HOTPToken with a bracketed [last|now|next] Interval seed range

Types ¶

This section is empty.

Source Files ¶

View all Source files

otp.go

Directories ¶

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