Solved TOTP | Help
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Hy, I want to create an application which will generate a TOTP code.
(To connect to facebook,...).I found this code:
QString hmacSha1(QByteArray key, QByteArray baseString) { int blockSize = 64; // HMAC-SHA-1 block size, defined in SHA-1 standard if (key.length() > blockSize) { // if key is longer than block size (64), reduce key length with SHA-1 compression key = QCryptographicHash::hash(key, QCryptographicHash::Sha1); } QByteArray innerPadding(blockSize, char(0x36)); // initialize inner padding with char "6" QByteArray outerPadding(blockSize, char(0x5c)); // initialize outer padding with char "quot; // ascii characters 0x36 ("6") and 0x5c ("quot;) are selected because they have large // Hamming distance (http://en.wikipedia.org/wiki/Hamming_distance) for (int i = 0; i < key.length(); i++) { innerPadding[i] = innerPadding[i] ^ key.at(i); // XOR operation between every byte in key and innerpadding, of key length outerPadding[i] = outerPadding[i] ^ key.at(i); // XOR operation between every byte in key and outerpadding, of key length } // result = hash ( outerPadding CONCAT hash ( innerPadding CONCAT baseString ) ).toBase64 QByteArray total = outerPadding; QByteArray part = innerPadding; part.append(baseString); total.append(QCryptographicHash::hash(part, QCryptographicHash::Sha1)); QByteArray hashed = QCryptographicHash::hash(total, QCryptographicHash::Sha1); return hashed.toBase64(); }
What can I do ?
Thanks :)
(sorry for my english, I'm french)
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Hi and welcome to devnet,
Are you looking for something like QGoogleAuth ?
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Thanks for your help.
I add the file to my project, but there's an error
Do you want the projet ?mainwindow.obj:-1: erreur : LNK2019: unresolved external symbol "__declspec(dllimport) public: static class QString __cdecl QGoogleAuth::generatePin(class QByteArray)" (_imp?generatePin@QGoogleAuth@@SA?AVQString@@VQByteArray@@@Z) referenced in function "private: void __cdecl MainWindow::on_pushButton_clicked(void)" (?on_pushButton_clicked@MainWindow@@AEAAXXZ)
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Did you link your application to the library ?
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I have to link which library ?
(Sorry, I'm a novice) -
The generated when you build the QGoogleAuth project.
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I add the ".lib" file, but the error still
mainwindow.obj:-1: erreur : LNK2019: unresolved external symbol "__declspec(dllimport) public: static class QString __cdecl QGoogleAuth::generatePin(class QByteArray)" (_imp?generatePin@QGoogleAuth@@SA?AVQString@@VQByteArray@@@Z) referenced in function "private: void __cdecl MainWindow::on_pushButton_clicked(void)" (?on_pushButton_clicked@MainWindow@@AEAAXXZ)
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How did you add that file ?
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Right click on projet,
Add library
Extern library
I select the "qgoogleauth.lib" file :( -
It's OK, I've found a solution.
I add all the file of the project, and I do not add library.
So, it build with my project.Thank you very munch for your precious help :)