qt mysql database md5 password cheking problem





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I am making registration/login form with qt c++ saving registration information in mysql password is hashed by md5 also I've tried sha256 same there, so main problem it saves password hashed and I've got no problem with that but when i'm comparing it in login window it doesn't compares and password wrong message appears. without hashing everything works fine, with hashing checking problem. Thanks for help))



if (db.open()) {
QString email = ui->email->text();
QString password = QString("%1").arg(QString(QCryptographicHash::hash(ui->password->text().toUtf8(),QCryptographicHash::Md5).toHex()));

// Insert Query
QSqlQuery query(QSqlDatabase::database("MyConnection"));
query.prepare("SELECT * FROM users WHERE email = :email AND password = :password");
query.bindValue(":email", email);
query.bindValue(":password", password);

if (!query.exec()) {
QMessageBox::information(this,"Failed","Error please try again");
}
else {
QString emailLog = query.value(1).toString();
QString passwordLog = query.value(4).toString();

if (query.next()) {
QMessageBox::information(this,"SUCCESS","SUCCESS");
ui->plstryagain->close();
db.close();
} else {
QMessageBox::information(this,"Wrong","Wrong Password try again");
ui->plstryagain->show();
db.close();
}
}
}
else {
QMessageBox::information(this, "Database Error", "Can't Connect To Database");
}









share|improve this question




















  • 1





    How do you store the password on creation ?

    – Pratham
    Nov 16 '18 at 17:27






  • 1





    Well, have you debugged your code to see what it is comparing?

    – user1531971
    Nov 16 '18 at 17:41


















0















I am making registration/login form with qt c++ saving registration information in mysql password is hashed by md5 also I've tried sha256 same there, so main problem it saves password hashed and I've got no problem with that but when i'm comparing it in login window it doesn't compares and password wrong message appears. without hashing everything works fine, with hashing checking problem. Thanks for help))



if (db.open()) {
QString email = ui->email->text();
QString password = QString("%1").arg(QString(QCryptographicHash::hash(ui->password->text().toUtf8(),QCryptographicHash::Md5).toHex()));

// Insert Query
QSqlQuery query(QSqlDatabase::database("MyConnection"));
query.prepare("SELECT * FROM users WHERE email = :email AND password = :password");
query.bindValue(":email", email);
query.bindValue(":password", password);

if (!query.exec()) {
QMessageBox::information(this,"Failed","Error please try again");
}
else {
QString emailLog = query.value(1).toString();
QString passwordLog = query.value(4).toString();

if (query.next()) {
QMessageBox::information(this,"SUCCESS","SUCCESS");
ui->plstryagain->close();
db.close();
} else {
QMessageBox::information(this,"Wrong","Wrong Password try again");
ui->plstryagain->show();
db.close();
}
}
}
else {
QMessageBox::information(this, "Database Error", "Can't Connect To Database");
}









share|improve this question




















  • 1





    How do you store the password on creation ?

    – Pratham
    Nov 16 '18 at 17:27






  • 1





    Well, have you debugged your code to see what it is comparing?

    – user1531971
    Nov 16 '18 at 17:41














0












0








0








I am making registration/login form with qt c++ saving registration information in mysql password is hashed by md5 also I've tried sha256 same there, so main problem it saves password hashed and I've got no problem with that but when i'm comparing it in login window it doesn't compares and password wrong message appears. without hashing everything works fine, with hashing checking problem. Thanks for help))



if (db.open()) {
QString email = ui->email->text();
QString password = QString("%1").arg(QString(QCryptographicHash::hash(ui->password->text().toUtf8(),QCryptographicHash::Md5).toHex()));

// Insert Query
QSqlQuery query(QSqlDatabase::database("MyConnection"));
query.prepare("SELECT * FROM users WHERE email = :email AND password = :password");
query.bindValue(":email", email);
query.bindValue(":password", password);

if (!query.exec()) {
QMessageBox::information(this,"Failed","Error please try again");
}
else {
QString emailLog = query.value(1).toString();
QString passwordLog = query.value(4).toString();

if (query.next()) {
QMessageBox::information(this,"SUCCESS","SUCCESS");
ui->plstryagain->close();
db.close();
} else {
QMessageBox::information(this,"Wrong","Wrong Password try again");
ui->plstryagain->show();
db.close();
}
}
}
else {
QMessageBox::information(this, "Database Error", "Can't Connect To Database");
}









share|improve this question
















I am making registration/login form with qt c++ saving registration information in mysql password is hashed by md5 also I've tried sha256 same there, so main problem it saves password hashed and I've got no problem with that but when i'm comparing it in login window it doesn't compares and password wrong message appears. without hashing everything works fine, with hashing checking problem. Thanks for help))



if (db.open()) {
QString email = ui->email->text();
QString password = QString("%1").arg(QString(QCryptographicHash::hash(ui->password->text().toUtf8(),QCryptographicHash::Md5).toHex()));

// Insert Query
QSqlQuery query(QSqlDatabase::database("MyConnection"));
query.prepare("SELECT * FROM users WHERE email = :email AND password = :password");
query.bindValue(":email", email);
query.bindValue(":password", password);

if (!query.exec()) {
QMessageBox::information(this,"Failed","Error please try again");
}
else {
QString emailLog = query.value(1).toString();
QString passwordLog = query.value(4).toString();

if (query.next()) {
QMessageBox::information(this,"SUCCESS","SUCCESS");
ui->plstryagain->close();
db.close();
} else {
QMessageBox::information(this,"Wrong","Wrong Password try again");
ui->plstryagain->show();
db.close();
}
}
}
else {
QMessageBox::information(this, "Database Error", "Can't Connect To Database");
}






c++ mysql qt md5 sha256






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edited Nov 16 '18 at 19:29









pushkin

4,726113055




4,726113055










asked Nov 16 '18 at 15:58









Elen RiannonElen Riannon

1




1








  • 1





    How do you store the password on creation ?

    – Pratham
    Nov 16 '18 at 17:27






  • 1





    Well, have you debugged your code to see what it is comparing?

    – user1531971
    Nov 16 '18 at 17:41














  • 1





    How do you store the password on creation ?

    – Pratham
    Nov 16 '18 at 17:27






  • 1





    Well, have you debugged your code to see what it is comparing?

    – user1531971
    Nov 16 '18 at 17:41








1




1





How do you store the password on creation ?

– Pratham
Nov 16 '18 at 17:27





How do you store the password on creation ?

– Pratham
Nov 16 '18 at 17:27




1




1





Well, have you debugged your code to see what it is comparing?

– user1531971
Nov 16 '18 at 17:41





Well, have you debugged your code to see what it is comparing?

– user1531971
Nov 16 '18 at 17:41












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