com.duosecurity.client

Class Util

java.lang.Object

com.duosecurity.client.Util

public class Util
extends Object

Constructor Summary

Constructors

Constructor and Description
Util()

Method Summary

Modifier and Type	Method and Description
static String	bytes_to_hex(byte[] b) Changes bytes to hex.
static okhttp3.CertificatePinner	createPinner(String apiHost, String[] caCerts) Create a certificate pinner for the specified CA certificates.
static byte[]	hash(String algorithm, String message) Create hash byte array of message.
static byte[]	hmac(String algorithm, byte[] keyBytes, byte[] textBytes) Creates a hmac of textBytes.
static String	join(Object[] s, String joiner) Join elements from s together to make a string.

Methods inherited from class java.lang.Object

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

Constructor Detail

Util

public Util()

Method Detail

hmac

public static byte[] hmac(String algorithm,
                          byte[] keyBytes,
                          byte[] textBytes)
                   throws NoSuchAlgorithmException,
                          InvalidKeyException

Creates a hmac of textBytes.

Parameters:

algorithm - The algorithm used to create the hmac

keyBytes - The key used to initialize the hmac

textBytes - The text in bytes used to create the hmac

Returns:

The hmac of testBytes

Throws:

NoSuchAlgorithmException - For invalid algorithms

InvalidKeyException - For invalid keys

bytes_to_hex

public static String bytes_to_hex(byte[] b)

Changes bytes to hex.

Parameters:

b - Byte array to be changed to a hex string

Returns:

The hex string of b

join

public static String join(Object[] s,
                          String joiner)

Join elements from s together to make a string.

Parameters:

s - An object that will be joined to make a string

joiner - A string used to join the elements of s together

Returns:

The string made from joining elements of s and the joiner

createPinner

public static okhttp3.CertificatePinner createPinner(String apiHost,
                                                     String[] caCerts)

Create a certificate pinner for the specified CA certificates.

Parameters:

apiHost - the host for pinning

caCerts - the certificates to pin to

Returns:

a CertificatePinner

hash

public static byte[] hash(String algorithm,
                          String message)

Create hash byte array of message.

Parameters:

algorithm - The algorithm used to create the hash

message - The text to create the hash

Returns:

a byte array