Sailfish::Crypto::GenerateRandomDataRequest rd;
 rd.setManager(cryptoManager);
 rd.setCryptoPluginName(Sailfish::Crypto::CryptoManager::DefaultCryptoStoragePluginName);
 rd.setCsprngEngineName(QStringLiteral("/dev/urandom"));
 rd.setNumberBytes(8);
 rd.startRequest();
 rd.waitForFinished(); // in real code, you would not do this, but react to statusChanged()
 QByteArray randomBytes = rd.generatedData();
 quint64 randomU64 = 0;
 memcpy(&randomU64, randomBytes.constData(), 8);
 double randomDouble = (randomU64 >> 11) * (1.0/9007199254740992.0); // 53 bits / 2**53
 int randomInRange = qRound((7777 - 30) * randomDouble) + 30;

Member Function Documentation

GenerateRandomDataRequest::GenerateRandomDataRequest(QObject *parent = Q_NULLPTR)

Constructs a new GenerateRandomDataRequest object with the given parent.

GenerateRandomDataRequest::~GenerateRandomDataRequest()

Destroys the GenerateRandomDataRequest

QString GenerateRandomDataRequest::cryptoPluginName() const

Returns the name of the crypto plugin which the client wishes to perform the key generation operation

Note: Getter function for property cryptoPluginName.

See also setCryptoPluginName().

QString GenerateRandomDataRequest::csprngEngineName() const

Returns the name of the cryptographically secure random number generator engine offered by the crypto plugin which the client wishes to be used to generate the random data

Note: Getter function for property csprngEngineName.

See also setCsprngEngineName().

[virtual] QVariantMap GenerateRandomDataRequest::customParameters() const

See also setCustomParameters().

QByteArray GenerateRandomDataRequest::generatedData() const

Returns the generated random data

Note: this value is only valid if the status of the request is Request::Finished.

Note: Getter function for property generatedData.

[virtual] Sailfish::Crypto::CryptoManager *GenerateRandomDataRequest::manager() const

See also setManager().

quint64 GenerateRandomDataRequest::numberBytes() const

Returns the number of bytes of random data that the client wishes to be generated

Note: Getter function for property numberBytes.

See also setNumberBytes().

[virtual] Sailfish::Crypto::Result GenerateRandomDataRequest::result() const

void GenerateRandomDataRequest::setCryptoPluginName(const QString &pluginName)

Sets the name of the crypto plugin which the client wishes to perform the key generation operation to pluginName

Note: Setter function for property cryptoPluginName.

See also cryptoPluginName().

void GenerateRandomDataRequest::setCsprngEngineName(const QString &engineName)

Sets the name of the cryptographically secure random number generator engine offered by the crypto plugin which the client wishes to be used to generate the random data to engineName

Usually, the default engine offered by the plugin is the correct CSPRNG engine to use (and in fact, most plugins will only offer that one engine), so clients should not have to set this parameter in the majority of cases.

Note: Setter function for property csprngEngineName.

See also csprngEngineName().

[virtual] void GenerateRandomDataRequest::setCustomParameters(const QVariantMap &params)

See also customParameters().

[virtual] void GenerateRandomDataRequest::setManager(Sailfish::Crypto::CryptoManager *manager)

See also manager().

void GenerateRandomDataRequest::setNumberBytes(quint64 nbrBytes)

Sets the number of bytes of random data that the client wishes to be generated to nbrBytes

Note: Setter function for property numberBytes.

See also numberBytes().

[virtual] void GenerateRandomDataRequest::startRequest()

[virtual] Sailfish::Crypto::Request::Status GenerateRandomDataRequest::status() const

[virtual] void GenerateRandomDataRequest::waitForFinished()