A 128 bit fingerprint is an MD5 hash. One of the most powerful and irreversible hashes, meaning that once a hash is formed for certain data, it cannot be undone. The block size of the MD5 hashing technique is 512 bits, and the hash value is always 128 bits. In order to prevent attackers from ever gaining access to actual data, it is beneficial for protecting passwords and other sensitive data like credit card information in databases. In the event that a website employs MD5 hashing to store passwords in its database and a user enters a password like "mypassword123" on that website, the attacker will only be able to access MD5 hashes from the database and not actual user passwords. He cannot even get into user accounts with these MD5 hashes since the website will first convert the user's password to an MD5 hash, which it will then compare to a hash stored in the database before allowing the user to log in.
Additionally, the MD5 hash may be used as a checksum to ensure the accuracy of data. For instance, if you have five pages of data, you may compute its MD5 hash. Later, if the hash is different from the first one, it indicates that the material has been altered.
With just one click, the Online MD5 Hash Generator at Useotools.com can generate an MD5 hash for any type of data, even sensitive information like your password in its raw form. Simply put your data into the text section of the program and hit the blue button to get it hashed.
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