Package io.getlime.security.powerauth.crypto.lib.util

Class ByteUtils

java.lang.Object
io.getlime.security.powerauth.crypto.lib.util.ByteUtils
public final class ByteUtils extends Object
A utility class for handling byte array transformations.
Author:
Roman Strobl, roman.strobl@wultra.com

  • Method Summary

    Modifier and Type
    Method
    Description
    static byte[]
    concat(byte[]... arrays)
    Concatenate multiple byte arrays.
    static byte[]
    concatStrings(String... strings)
    Concatenate multiple strings and convert them into a byte array, include each string length.
    static byte[]
    concatWithSizes(byte[]... arrays)
    Concatenate multiple byte arrays, including each component size.
    static byte[]
    encodeInt(int n)
    Encode an int number into a byte array.
    static byte[]
    encodeLong(long n)
    Encode a long number into a byte array.
    static byte[]
    encodeShort(short n)
    Encode a short number into a byte array.
    static byte[]
    encodeString(String s)
    Encode a String into a byte array.

    Methods inherited from class java.lang.Object

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

  • Method Details

    • concat

      public static byte[] concat(byte[]... arrays)
      Concatenate multiple byte arrays.
      Parameters:
      arrays - Byte arrays to concatenate.
      Returns:
      Concatenated byte array.

    • concatWithSizes

      public static byte[] concatWithSizes(byte[]... arrays)
      Concatenate multiple byte arrays, including each component size. Sample output byte array structure: [size1][array1][size2][array2] In case byte array is empty, each empty component is encoded as: [0]
      Parameters:
      arrays - Byte arrays to join.
      Returns:
      Joined byte array.

    • concatStrings

      public static byte[] concatStrings(String... strings)
      Concatenate multiple strings and convert them into a byte array, include each string length.
      Parameters:
      strings - Strings to join.
      Returns:
      Byte array with joined strings.

    • encodeShort

      public static byte[] encodeShort(short n)
      Encode a short number into a byte array.
      Parameters:
      n - Short number to encode.
      Returns:
      Byte array.

    • encodeInt

      public static byte[] encodeInt(int n)
      Encode an int number into a byte array.
      Parameters:
      n - Int number to encode.
      Returns:
      Byte array.

    • encodeLong

      public static byte[] encodeLong(long n)
      Encode a long number into a byte array.
      Parameters:
      n - Long number to encode.
      Returns:
      Byte array.

    • encodeString

      public static byte[] encodeString(String s)
      Encode a String into a byte array.
      Parameters:
      s - String to encode.
      Returns:
      Byte array.