Package io.antmedia.security

Class TOTPGenerator

java.lang.Object

io.antmedia.security.TOTPGenerator

public class TOTPGenerator
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
private static final long[]	DIGITS_POWER
protected static org.slf4j.Logger	logger

Constructor Summary

Constructors

Constructor	Description
TOTPGenerator()

Method Summary

Modifier and Type	Method	Description
static String	generateTOTP(byte[] secretBytes, int duration, int codeDigits, String crypto)
static String	generateTOTPWithTimeConstant(byte[] secretBytes, int codeDigits, String crypto, long timeConstant)	This method generates a TOTP value for the given set of parameters.
static String	getSecretCodeForNotRecordedSubscriberId(String subscriberId, String streamId, String type, String secretFromSettings)	This generated B32 Secret code on the fly for the subscriberId that is not recorded in the database
private static byte[]	hmac_sha(String crypto, byte[] keyBytes, byte[] text)	This method uses the JCE to provide the crypto algorithm.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

logger

protected static org.slf4j.Logger logger

DIGITS_POWER

private static final long[] DIGITS_POWER

Constructor Details

TOTPGenerator

public TOTPGenerator()

Method Details

hmac_sha

private static byte[] hmac_sha(String crypto,
 byte[] keyBytes,
 byte[] text)

This method uses the JCE to provide the crypto algorithm. HMAC computes a Hashed Message Authentication Code with the crypto hash algorithm as a parameter.

Parameters:

crypto - : the crypto algorithm (HmacSHA1, HmacSHA256, HmacSHA512)

keyBytes - : the bytes to use for the HMAC key

text - : the message or text to be authenticated

getSecretCodeForNotRecordedSubscriberId

public static String getSecretCodeForNotRecordedSubscriberId(String subscriberId,
 String streamId,
 String type,
 String secretFromSettings)

This generated B32 Secret code on the fly for the subscriberId that is not recorded in the database

Parameters:

subscriberId -

streamId -

secretFromSettings -

Returns:

generateTOTPWithTimeConstant

public static String generateTOTPWithTimeConstant(byte[] secretBytes,
 int codeDigits,
 String crypto,
 long timeConstant)

This method generates a TOTP value for the given set of parameters.

Parameters:

key - : the shared secret, HEX encoded

time - : a value that reflects a time

returnDigits - : number of digits to return

crypto - : the crypto function to use (HmacSHA1 | HmacSHA256 | HmacSHA512)

generateTOTP

public static String generateTOTP(byte[] secretBytes,
 int duration,
 int codeDigits,
 String crypto)