One time password for Go.
See GUIDE.md for more details.
Go version 1.17+
go get github.com/cristalhq/otp
secretInBase32 := "JBSWY3DPEHPK3PXP"
algo := otp.AlgorithmSHA1
digits := otp.Digits(10)
issuer := "cristalhq"
hotp, err := otp.NewHOTP(algo, digits, issuer)
checkErr(err)
code, err := hotp.GenerateCode(42, secretInBase32)
checkErr(err)
fmt.Println(code)
err = hotp.Validate(code, 42, secretInBase32)
checkErr(err)
// Output:
// 0979090604Also see examples: examples_test.go.
See these docs.