QCryptographicHash Class▲
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Header: QCryptographicHash
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Since: Qt 4.3
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qmake: QT += core
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Group: QCryptographicHash is part of tools
Detailed Description▲
QCryptographicHash can be used to generate cryptographic hashes of binary or text data.
Refer to the documentation of the QCryptographicHash::Algorithm enum for a list of the supported algorithms.
Member Type Documentation▲
enum QCryptographicHash::Algorithm▲
In Qt versions before 5.9, when asked to generate a SHA3 hash sum, QCryptographicHash actually calculated Keccak. If you need compatibility with SHA-3 hashes produced by those versions of Qt, use the Keccak_ enumerators. Alternatively, if source compatibility is required, define the macro QT_SHA3_KECCAK_COMPAT.
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Constant |
Value |
Description |
|---|---|---|
|
QCryptographicHash::Md4 |
0 |
Generate an MD4 hash sum |
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QCryptographicHash::Md5 |
1 |
Generate an MD5 hash sum |
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QCryptographicHash::Sha1 |
2 |
Generate an SHA-1 hash sum |
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QCryptographicHash::Sha224 |
3 |
Generate an SHA-224 hash sum (SHA-2). Introduced in Qt 5.0 |
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QCryptographicHash::Sha256 |
4 |
Generate an SHA-256 hash sum (SHA-2). Introduced in Qt 5.0 |
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QCryptographicHash::Sha384 |
5 |
Generate an SHA-384 hash sum (SHA-2). Introduced in Qt 5.0 |
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QCryptographicHash::Sha512 |
6 |
Generate an SHA-512 hash sum (SHA-2). Introduced in Qt 5.0 |
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QCryptographicHash::Sha3_224 |
RealSha3_224 |
Generate an SHA3-224 hash sum. Introduced in Qt 5.1 |
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QCryptographicHash::Sha3_256 |
RealSha3_256 |
Generate an SHA3-256 hash sum. Introduced in Qt 5.1 |
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QCryptographicHash::Sha3_384 |
RealSha3_384 |
Generate an SHA3-384 hash sum. Introduced in Qt 5.1 |
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QCryptographicHash::Sha3_512 |
RealSha3_512 |
Generate an SHA3-512 hash sum. Introduced in Qt 5.1 |
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QCryptographicHash::Keccak_224 |
7 |
Generate a Keccak-224 hash sum. Introduced in Qt 5.9.2 |
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QCryptographicHash::Keccak_256 |
8 |
Generate a Keccak-256 hash sum. Introduced in Qt 5.9.2 |
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QCryptographicHash::Keccak_384 |
9 |
Generate a Keccak-384 hash sum. Introduced in Qt 5.9.2 |
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QCryptographicHash::Keccak_512 |
10 |
Generate a Keccak-512 hash sum. Introduced in Qt 5.9.2 |
Member Function Documentation▲
[explicit] QCryptographicHash::QCryptographicHash(QCryptographicHash::Algorithm method)▲
Constructs an object that can be used to create a cryptographic hash from data using method.
QCryptographicHash::~QCryptographicHash()▲
Destroys the object.
void QCryptographicHash::addData(const char *data, int length)▲
Adds the first length chars of data to the cryptographic hash.
void QCryptographicHash::addData(const QByteArray &data)▲
This function overloads addData().
[since 5.0] bool QCryptographicHash::addData(QIODevice *device)▲
Reads the data from the open QIODevice device until it ends and hashes it. Returns true if reading was successful.
This function was introduced in Qt 5.0.
[static] QByteArray QCryptographicHash::hash(const QByteArray &data, QCryptographicHash::Algorithm method)▲
Returns the hash of data using method.
[static, since 5.12] int QCryptographicHash::hashLength(QCryptographicHash::Algorithm method)▲
Returns the size of the output of the selected hash method in bytes.
This function was introduced in Qt 5.12.
void QCryptographicHash::reset()▲
Resets the object.