QCryptographicHash

QCryptographicHash 

Header: #include <QCryptographicHash>
qmake: QT += core
Since: Qt 4.3

注意：在5.9之前的Qt版本中，当被要求生成SHA3时，qcryptographicshash实际上计算了Keccak。如果您需要与Qt版本生成的SHA-3哈希兼容，请使用Keccak_u枚举器。或者，如果需要源兼容性，则定义宏QT_uSha3u KECCAK_uUcompat。

Constant	Value	Description
QCryptographicHash::Md4	0	Generate an MD4 hash sum
QCryptographicHash::Md5	1	Generate an MD5 hash sum
QCryptographicHash::Sha1	2	Generate an SHA-1 hash sum
QCryptographicHash::Sha224	3	Generate an SHA-224 hash sum (SHA-2). Introduced in Qt 5.0
QCryptographicHash::Sha256	4	Generate an SHA-256 hash sum (SHA-2). Introduced in Qt 5.0
QCryptographicHash::Sha384	5	Generate an SHA-384 hash sum (SHA-2). Introduced in Qt 5.0
QCryptographicHash::Sha512	6	Generate an SHA-512 hash sum (SHA-2). Introduced in Qt 5.0
QCryptographicHash::Sha3_224	RealSha3_224	Generate an SHA3-224 hash sum. Introduced in Qt 5.1
QCryptographicHash::Sha3_256	RealSha3_256	Generate an SHA3-256 hash sum. Introduced in Qt 5.1
QCryptographicHash::Sha3_384	RealSha3_384	Generate an SHA3-384 hash sum. Introduced in Qt 5.1
QCryptographicHash::Sha3_512	RealSha3_512	Generate an SHA3-512 hash sum. Introduced in Qt 5.1
QCryptographicHash::Keccak_224	7	Generate a Keccak-224 hash sum. Introduced in Qt 5.9.2
QCryptographicHash::Keccak_256	8	Generate a Keccak-256 hash sum. Introduced in Qt 5.9.2
QCryptographicHash::Keccak_384	9	Generate a Keccak-384 hash sum. Introduced in Qt 5.9.2
QCryptographicHash::Keccak_512	10	Generate a Keccak-512 hash sum. Introduced in Qt 5.9.2

void MainWindow::getMd5(QString pwdStr)
{
    QString md5Str;
    QByteArray byteArray1, byteArray2;
    QCryptographicHash md(QCryptographicHash::Md5);
    byteArray1.append(pwdStr);
    md.addData(byteArray1);
    byteArray2 = md.result();
    md5Str.append(byteArray2.toHex());
    qDebug() << md5Str;

    return md5Str;    
}

Md5:
a94db642b34e5f34d75c14c5aeeda36f


Keccak_512:
a95c153b9bd4b32910b08c7d591866d949df2aa3e3fb62ed423ea5fd72c3e4ca05b2f1baa8a01fba9054a797589660f0988e22654ad3b0a77eee391b8bf5686b

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