md5

I've spent several hours trying to figure out how to do this. I've read post after post here on stackoverflow and the documentation. I have a android.graphics.Bitmap object and I need to get it's md5 sum. At the point that I want to verify the sum it has not been saved to the file system. I've seen several ways of doing this for java.io.File objects. I just need a function that receives a Bitmap object and returns the hex md5 sum as a String. This might have been addressed somewhere but if it has been I have been unable to understand it or deduce how to do it from it. The less resource heavy

I want to create a MD5 hash code in Qt. My code : QString queryStr; queryStr = QString("%1") .arg(QString(QCryptographicHash::hash(ui->txtPassword->text(),QCryptographicHash::Md5).toHex())); but my code does not work! hash method does not work in Qt ! Any suggestion? text() returns QString , QCryptographicHash::hash requires QByteArray and there is no implicit conversion, so you should do this by yourself. Use something like this: QString queryStr; ui->lineEdit_2->setText("hash"); queryStr = QString("%1").arg(QString(QCryptographicHash::hash(ui->lineEdit_2->text().toUtf8(),QCryptographicHash:

Does this method compare the pixel values of the images? I'm guessing it won't work because they are different sizes from each other but what if they are identical, but in different formats? For example, I took a screenshot and saved as a .jpg and another and saved as a .gif . An MD5 hash is of the actual binary data, so different formats will have completely different binary data. so for MD5 hashes to match, they must be identical files. (There are exceptions in fringe cases. ) This is actually one way forensic law enforcement finds data it deems as contraband. (in reference to images) It is

I'm trying to implement an indirect download through PHP. On the client side I verify if the downloaded file is correct or not using md5. When I download the file directly ( http://server/folder/file.apk ) I get the same md5 checksum as on the file system, but when I download it via the PHP script ( http://server/some_page.php ) I get a totally different checksum. Why? Here's my PHP script: <?php $name_file="test2.apk"; $path="/home/user/public_html/apk/"; $dimension_file=(string)filesize($name_file); header("Content-Type: application/vnd.android.package-archive ; name=".$name_file); header(

Is it possible to optimise the function: MD5_Update(&ctx_d, buf, num); if you know that buf contains only zeros? Or is this mathematically impossible? Likewise for SHA1. If you control the input of the hash function then you could use a simple count instead of all the zero's, maybe using some kind of escape. E.g. 000020 in hex could mean 32 zero's. A (very) basic compression function may be much faster than MD5 or SHA1. Obviously this solution will only be faster if you save one or more blocks of hash calculations. E.g. it does not matter if you hash 3 bytes or 16 bytes, as the input will be

I'm converting an existing php based website to a node.js app, and I need to reproduce this encryption method from php to js. private static $_passwordSalt = 'd2g6IOP(U(&§)%U§VUIPU(HN%V/§§URerjh0ürfqw4zoöqe54gß0äQ"LOU$3wer'; public static function getCryptedPassword($password = 'password') { return sha1(md5(self::$_passwordSalt.$password)); } So far I've tried this but it does not return the same results: UserSchema.methods.hashPassword = function(password) { var salt = 'd2g6IOP(U(&§)%U§VUIPU(HN%V/§§URerjh0ürfqw4zoöqe54gß0äQ"LOU$3wer' var md5Hash = md5(password + salt); var

I'm trying to compose a function to obtain MD5 hashes from bits I've gathered here and there. I want to obtain the lower-case hexadecimal representation of the hash. I have this so far: CREATE OR REPLACE FUNCTION MD5 ( CADENA IN VARCHAR2 ) RETURN DBMS_OBFUSCATION_TOOLKIT.VARCHAR2_CHECKSUM AS BEGIN RETURN LOWER( RAWTOHEX( UTL_RAW.CAST_TO_RAW( DBMS_OBFUSCATION_TOOLKIT.MD5(INPUT_STRING => CADENA) ) ) ); END; I'm not sure about the return type of the function. DBMS_OBFUSCATION_TOOLKIT.VARCHAR2_CHECKSUM looks like the appropriate choice and as far as I can tell it works as expected but the package