SHA224 Hash

Online SHA224 Hash

What is SHA-224?

The SHA-2 family of hash functions is a set of cryptographic hash functions developed by the National Security Agency (NSA) to replace the insecure SHA-1 algorithm. SHA-2 consists of a number of different hash functions that differ in terms of their output size, which ranges from 224 to 512 bits.

One of the member functions of the SHA-2 family is SHA-224, which produces a 224-bit (28-byte) hash value. It is typically represented as a 56-digit hexadecimal number. SHA-224 was designed to be used as a one-way hash function, meaning that it is infeasible to reverse the process and obtain the original input from the hash value.

A hash function is a mathematical algorithm that takes an input (or 'message') and returns a fixed-size string of characters, which is usually a hexadecimal number. The input can be of any size, and the output is always the same size. The output of a hash function is known as a 'hash' or 'digest'.

One of the main uses of hash functions is to verify the integrity of data. For example, when you download a file from the internet, it is often accompanied by a hash value that was calculated by the sender. By calculating the hash of the downloaded file and comparing it to the original hash value, you can ensure that the file was not tampered with or corrupted during the download process.

Another use of hash functions is to create a 'digital fingerprint' of a message. Because it is infeasible to generate two different messages that produce the same hash value, a hash can be used to uniquely identify a specific message. This is often used in digital signatures to verify the authenticity of a message.

SHA-224 is a 'hash-only' function, meaning that it does not use a secret key to calculate the hash value. This means that anyone can calculate the hash of a message and compare it to the original hash value to verify its integrity. However, it also means that it is possible for an attacker to create a different message with the same hash value as the original message. This is known as a 'collision'.

SHA-224 is considered to be more secure than its predecessor SHA-1, but it is considered less secure than its SHA-2 relatives SHA-256 and SHA-512, especially when it comes to collision resistance. These more recent algorithm have a larger output size.

It is generally recommended to use one of the newer, stronger algorithms such as SHA-256 or SHA-512 for security purposes, especially in situations where collision resistance is critical.

Generate SHA224 In Programming Language?

• Java
• C#
• PHP
• Javascript

                    
public String generateHash(String input) {
    java.security.MessageDigest.MessageDigest md = java.security.MessageDigest.MessageDigest.getInstance("SHA-224");
    md.update(input.getBytes());
    byte[] digest = md.digest();
    return javax.xml.bind.DatatypeConverter.DatatypeConverter.printHexBinary(digest).toUpperCase();
}
                    
                    

                    
// No in-built native support
                    
                    

                    
$input = "input";
echo hash('sha224', $input);
                    
                    

                    
<script src="https://cdnjs.cloudflare.com/ajax/libs/crypto-js/4.1.1/crypto-js.min.js"
        integrity="sha512-E8QSvWZ0eCLGk4km3hxSsNmGWbLtSCSUcewDQPQWZF6pEU8GlT8a5fF32wOl1i8ftdMhssTrF/OhyGWwonTcXA=="
        crossorigin="anonymous" referrerpolicy="no-referrer"></script>

<script src="https://cdnjs.cloudflare.com/ajax/libs/crypto-js/4.1.1/sha224.min.js"
        integrity="sha512-sFGtrmACByaicbpoPCm+e2wrXKw97fOSMlU4YIZL4TwNzT99PDBFcS4lrywVyAVUmPrE0xBkCmZpigYLRYcxmg=="
        crossorigin="anonymous" referrerpolicy="no-referrer"></script>
                    
                    

                    
<script>
   var hash = CryptoJS.SHA224("input").toString();
   alert(hash);
</script>