Module org.refcodes.forwardsecrecy
Package edu.vt.middleware.crypt.util

Class Convert

  • public final class Convert
extends Object
    Utility class provides static methods to perform common conversions.
    Version:
    $Revision: 2745 $
    Author:
    Middleware Services

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static byte[] fromBase64​(String base64)
      Converts base64-encoded string of bytes into the original byte array.
      static byte[] fromHex​(String hex)
      Converts hexadecimal string of bytes into the original byte array.
      static Charset getDefaultCharset()
      Gets the default charset used for character/byte conversions.
      static byte[] toAsciiBytes​(String input)
      Converts a string to bytes in the ASCII character set.
      static String toBase64​(byte[] input)
      Converts a byte array into a base-64 encoded string without any line breaks.
      static byte[] toBytes​(char[] input)
      Converts a character array to a byte array in the default character set.
      static byte[] toBytes​(String input)
      Converts a string to bytes in the default character set.
      static byte[] toBytes​(String[] input)
      Convers an array of strings into a byte array produced by concatenating the byte representation of each string in the default character set.
      static String toHex​(byte[] input)
      Converts a byte array into a hexadecimal string representation of the bytes.
      static String toString​(byte[] input)
      Converts a byte array to a string in the default encoding.

    • Field Detail

      • CHARSET_PROPERTY

        public static final String CHARSET_PROPERTY
        System property used to specify character set.
        See Also:
        Constant Field Values

      • ASCII_CHARSET

        public static final Charset ASCII_CHARSET
        ASCII character set used for all encoding methods.

      • DEFAULT_CHARSET

        public static final Charset DEFAULT_CHARSET
        Default character set.

    • Method Detail

      • getDefaultCharset

        public static Charset getDefaultCharset()
        Gets the default charset used for character/byte conversions. If the edu.vt.middleware.crypt.charset system property is specified, attempts to get the named character set, otherwise returns DEFAULT_CHARSET.
        Returns:
        Default character set.

      • toBytes

        public static byte[] toBytes​(String[] input)
        Convers an array of strings into a byte array produced by concatenating the byte representation of each string in the default character set.
        Parameters:
        input - String to convert
        Returns:
        String characters as bytes.

      • toBytes

        public static byte[] toBytes​(String input)
        Converts a string to bytes in the default character set.
        Parameters:
        input - String to convert.
        Returns:
        String characters as bytes.

      • toBytes

        public static byte[] toBytes​(char[] input)
        Converts a character array to a byte array in the default character set.
        Parameters:
        input - Character array to convert.
        Returns:
        Characters as bytes in the default charset.

      • toAsciiBytes

        public static byte[] toAsciiBytes​(String input)
        Converts a string to bytes in the ASCII character set.
        Parameters:
        input - String to convert.
        Returns:
        Byte array of ASCII characters.

      • toString

        public static String toString​(byte[] input)
        Converts a byte array to a string in the default encoding.
        Parameters:
        input - Byte array to convert.
        Returns:
        String representation of bytes.

      • fromHex

        public static byte[] fromHex​(String hex)
        Converts hexadecimal string of bytes into the original byte array.
        Parameters:
        hex - Hexadecimal string of bytes.
        Returns:
        Original byte array.

      • toHex

        public static String toHex​(byte[] input)
        Converts a byte array into a hexadecimal string representation of the bytes.
        Parameters:
        input - Byte array to convert
        Returns:
        String of hexadecimal characters, two for each byte in input array.

      • fromBase64

        public static byte[] fromBase64​(String base64)
        Converts base64-encoded string of bytes into the original byte array.
        Parameters:
        base64 - Base64-encoded string of bytes.
        Returns:
        Original byte array.

      • toBase64

        public static String toBase64​(byte[] input)
        Converts a byte array into a base-64 encoded string without any line breaks.
        Parameters:
        input - Byte array to convert.
        Returns:
        Base-64 encoded string of input bytes.