ऑनलाइन MD5 हैश जेनरेटर

I'm trying to atack md5 hash function.I have a txt file that looks like this:

Student number: 123456

Problem number: 5/1

Grade: 0

i can add anything in 4th and next lines to make it md5 hash correspond to file like this :

Student number: 123456

Problem number: 5/1

Grade: 5

because the first file is send to someone who will sign it with md5 and private key and then i want to use this sign for the second file with grade 5. I looked at chosen prefix attack paper but i just don't understand it. can you explain it to me as simple as possible ?

Thanks in advance.

Hello Scala Community ,

I want to generate a MD5 hash for a file in input. Unfortunately the code I found on internet is available for String Input. For me my file can be read into a list of String, how could we generate a MD5 hash for a list of String. Below ther function I found in the following url :

https://alvinalexander.com/source-code/scala-method-create-md5-hash-of-string

def md5HashString(s: String): String = {    import java.security.MessageDigest    import java.math.BigInteger    val md = MessageDigest.getInstance("MD5")    val digest = md.digest(s.getBytes)    val bigInt = new BigInteger(1,digest)    val hashedString = bigInt.toString(16)    hashedString}

Manu thanks for your helpBest regards

I am working on a system where I need to store images in the database as type blob.

Please note that using a file system or server is not applicable in our case.

So I wanted to know if there was a way to hash or encrypt blobs?

Also how safe do you think it is to store images as type blob in the database?

Users can upload files to Azure blob storage via my web API service. And the blobs have MD5 hashes.

Now another API lets the user download files they previously uploaded.The API returns:

return File(blobFile, MediaTypeNames.Application.Octet, file.FileName);

So the javascript client receives a byte array with a header

Content-Type: application/octet-stream

The question is how does the js client validate the MD5 of the downloaded file matches the one that is from the blob?

I tried some online MD5 tools and they don't give me the same MD5 as the blob...

How can I open an image in PIL, then print the md5 hash of the image without saving it to a file and reading the file?