Package net.schmizz.sshj.common

Class ByteArrayUtils

java.lang.Object
net.schmizz.sshj.common.ByteArrayUtils
public class ByteArrayUtils extends Object
Utility functions for byte arrays.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    (package private) static final char[]
    digits
     

  • Constructor Summary

    Constructors
    Constructor
    Description
    ByteArrayUtils()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static byte[]
    encodeSensitiveStringToUtf8(char[] str)
    Converts a char-array to UTF-8 byte-array and then blanks out source array and all intermediate arrays.
    static boolean
    equals(byte[] a1, int a1Offset, byte[] a2, int a2Offset, int length)
    Check whether some part or whole of two byte arrays is equal, for length bytes starting at some offset.
    static byte[]
    parseHex(String hex)
     
    private static int
    parseHexDigit(char c)
     
    static String
    printHex(byte[] array, int offset, int len)
    Get a hexadecimal representation of a byte array starting at offset index for len bytes, with each octet separated by a space.
    static String
    toHex(byte[] array)
    Get the hexadecimal representation of a byte array.
    static String
    toHex(byte[] array, int offset, int len)
    Get the hexadecimal representation of a byte array starting at offset index for len bytes.

    Methods inherited from class java.lang.Object

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

  • Field Details

    • digits

      static final char[] digits

  • Constructor Details

    • ByteArrayUtils

      public ByteArrayUtils()

  • Method Details

    • equals

      public static boolean equals(byte[] a1, int a1Offset, byte[] a2, int a2Offset, int length)
      Check whether some part or whole of two byte arrays is equal, for length bytes starting at some offset.
      Parameters:
      a1 -
      a1Offset -
      a2 -
      a2Offset -
      length -
      Returns:
      true or false

    • printHex

      public static String printHex(byte[] array, int offset, int len)
      Get a hexadecimal representation of a byte array starting at offset index for len bytes, with each octet separated by a space.
      Parameters:
      array -
      offset -
      len -
      Returns:
      hex string, each octet delimited by a space

    • toHex

      public static String toHex(byte[] array)
      Get the hexadecimal representation of a byte array.
      Parameters:
      array -
      Returns:
      hex string

    • toHex

      public static String toHex(byte[] array, int offset, int len)
      Get the hexadecimal representation of a byte array starting at offset index for len bytes.
      Parameters:
      array -
      offset -
      len -
      Returns:
      hex string

    • parseHex

      public static byte[] parseHex(String hex)

    • parseHexDigit

      private static int parseHexDigit(char c)

    • encodeSensitiveStringToUtf8

      public static byte[] encodeSensitiveStringToUtf8(char[] str)
      Converts a char-array to UTF-8 byte-array and then blanks out source array and all intermediate arrays.

      This is useful when a plaintext password needs to be encoded as UTF-8.

      Parameters:
      str - A not-null string as a character array.
      Returns:
      UTF-8 bytes of the string