Nowadays, computers and digital equipment are very common, and thousands of developers are developing new applications and websites every day. So the developer faces some common issues while creating the latest applications and websites. One of the most common problems is ASCII to hex conversion. So In this article, we have defined the methods to convert the ASCII text to hexadecimal by using the programming codes or ASCII to hex converter.
What is ASCII Text?
Let’s have a look at what ASCII text is. ASCII is one of the most frequently used character encoding systems (American Standard Code for Information Interchange).
ASCII, which originated as telegraphic codes, is today widely used in a variety of text transmission channels. Because computers can only interpret numbers, ASCII coding represents text with various numbers (characters).
It refers to how a computer reads and displays text. The ASCII standard is made up of 128 characters, comprising 26 English alphabets and 0–9 integers.
Also included are a variety of punctuation marks. In the ASCII code, each of these characters is assigned a decimal value ranging from 0 to 127.
Hexadecimal numbers
The hexadecimal system is built on the number 16 as its base (abbreviated hex). As a base-16 numeric system, it uses 16 symbols.
The first 10 decimal digits (0,11,12,13,14,15,16,17,18,19) and the first six letters of the English alphabet (A, B, C, D, E, F) are. In a single sign, the letters represent the values 10, 11, 12, 13, 14, and 15.
In mathematics and information technology, hexadecimal is a considerably more user-friendly manner of expressing binary integers.
Hex is used to write binary in an abridged manner since each hex digit represents four binary digits.
One byte may contain binary values ranging from 0000 0000 to 1111 1111 since half a byte is made up of four binary digits. Hexadecimal values ranging from 00 to FF can be used to represent these.
In HTML, colours are defined by a 6-digit hexadecimal number; FFFFFF is white, while 000000 is black.
What method will you use to convert ASCII to Hexadecimal?
- Make use of characters.
- Using the ASCII table, find a character’s ASCII code.
- Convert a byte from decimal to hexadecimal.
- Next, go on to the next character.
Convert by using ASCII to Hex converter?
On the internet, you may use an online ASCII to Hex converter to convert any ASCII value into Hex Format with a single click.
By using the python code:
Python developers can use the built-in functions and the objects to convert the ASCII to the hex. To convert these two codes they can use the codecs.encode() function along with the objects to convert the asci value to their corresponding hexadecimal value. Or you can also use an ASCII to hex converter to ease up your tasks.
See the following example to convert from asci to hex using python libraries functions and objects.
First of all call codecs.encode(c, encoding) with c as byte string a “character” and encoding as hexadecimal to switch between these two files.
Hex=codec.encode (b”a”, “hex”)
Print (hex)
Output: b ‘61’
By using C code:
Here is one more method to convert between the ASCII values to hexadecimal code. By using the C or C++ codes and the logics developers can ease up this process.
Follow the instructions below to convert an ASCII string to a hex string:
Extract characters from an input string and convert them to hexadecimal format using the percent 02X format specifier. The percent 02X format specifier returns a 0 padded two-byte hexadecimal value of any value (like int, char).
To the output string, append these two bytes (characters), each of which is the hex value of an ASCII character.
Increase the loop counter (loop) of the input string by 1 and the loop counter I of the output string by 2 after each iteration.
Insert a NULL character into the output string at the conclusion of the loop.
A C program to convert from ASCII to hexadecimals:
#include
#include
//function to convert ascii char[] to hex-string (char[])
void string2hexString(char* input, char* output)
{
int loop;
int i;
i=0;
loop=0;
while(input[loop] != ‘\0’)
{
sprintf((char*)(output+i),”%02X”, input[loop]);
loop+=1;
i+=2;
}
//insert NULL at the end of the output string
output[i++] = ‘\0’;
}
int main(){
char ascii_str[] = “Hello world!”;
//declare output string with double size of input string
//because each character of input string will be converted
//in 2 bytes
int len = strlen(ascii_str);
char hex_str[(len*2)+1];
//converting ascii string to hex string
string2hexString(ascii_str, hex_str);
printf(“ascii_str: %s\n”, ascii_str);
printf(“hex_str: %s\n”, hex_str);
return 0;
}
Output:
ascii_str: Hello world!
hex_str: 48656C6C6F20776F726C6421
Summary:
So above are the ways by which the developers of python and C++ can convert the ASCII code into hexadecimal values by using the python and c++ libraries and built-in functions along with the objects. Further, if anyone finds it difficult to convert the Code from asci to hex then they can also use the online converters to ease up their tasks.
