Convert byte array to hex string
Byte array
A byte is 8 bits. A byte array is an array of bytes. You could use a byte array to store a collection of binary data, this data may be part of a data file, image file, compressed file, downloaded server response, or many other files. For large amounts of binary data, it would be better to use a streaming data type if your language supports it. With byte arrays, we have an ideal representation of this data. The byte array type allows you to store low-level representations. It is useful when optimizing certain methods.
Hexadecimal string
Characters are represented as ASCII and they are 1 byte long, a byte could be represented with 2 digits in hexadecimal format for example 255 is 0xFF.
Convert a byte array to a hexadecimal string
byte[] bArray = { 1, 2, 4, 8, 16, 32 };
string strHex = BitConverter.ToString(bArray);
output
01-02-04-08-10-20
If you want it without the dashes, just remove them:
byte[] bArray = { 1, 2, 4, 8, 16, 32 };
string strHex = BitConverter.ToString(bArray).Replace("-", string.Empty);
output
010204081020
Convert a String Hex to byte array
using System;
using System.Collections;
using System.Linq;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
byte[] bArray = { 192, 168, 1, 1 };
string strHex = BitConverter.ToString(bArray).Replace("-", string.Empty);
Console.WriteLine(strHex);
Console.ReadKey();
byte[] bytes = new byte[strHex.Length / 2];
for (int i = 0; i < strHex.Length; i += 2)
Console.WriteLine(bytes[i / 2] = Convert.ToByte(strHex.Substring(i, 2), 16));
Console.ReadKey();
}
}
}
output
C0A80101
192
168
1
1
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