OtpService (security 8.1.1 API)

All Known Implementing Classes:

OtpServiceImpl
```
public interface OtpService
```
OTPService is used to determine if the UserSecret matches the given validationcode.
The base is the TOTP algorithm. We have included a thirdparty library which serves the code for the validity check

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`String`	`getAuthenticatorURI(String secretKey)`	Generate URI for use in authenticator apps
`boolean`	`tryVerificationCode(String verificationCode, String secretKey)`	Use TOTP algorithm to verify validity of secret and verification code.

- Method Detail
  - tryVerificationCode
```
boolean tryVerificationCode(String verificationCode,
                            String secretKey)
```
    Use TOTP algorithm to verify validity of secret and verification code.
    
    Parameters:
    
    verificationCode - given verificationCode
    
    secretKey - generated secret key
    
    Returns:
    
    vericifcationCode matches secret key
  - getAuthenticatorURI
```
String getAuthenticatorURI(String secretKey)
```
    Generate URI for use in authenticator apps
    
    Returns:
    
    Google Authenticator URI