Convert Byte Array to Hex String

/// <summary>
/// Converts byte array into a hex string
/// </summary>
public static String ConvertToHexString(byte[] bytes)
{
    var sb = new StringBuilder();

    for (int i = 0; i < bytes.Length; i++)
    {
        sb.Append(bytes[i].ToString("x2"));
    }

    return sb.ToString();
}