QCryptographicHash

The QCryptographicHash class provides a way to generate cryptographic hashes. More…

Synopsis

Functions

• def addData (data)

• def addData (data)

• def addData (device)

• def reset ()

• def result ()

Static functions

• def hash (data, method)

• def hashLength (method)

Detailed Description

QCryptographicHash can be used to generate cryptographic hashes of binary or text data.

Refer to the documentation of the Algorithm enum for a list of the supported algorithms.

class PySide6.QtCore.QCryptographicHash(method)

Parameters

method – Algorithm

Constructs an object that can be used to create a cryptographic hash from data using method.

PySide6.QtCore.QCryptographicHash.Algorithm

Note

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.

Constant	Description
QCryptographicHash.Md4	Generate an MD4 hash sum
QCryptographicHash.Md5	Generate an MD5 hash sum
QCryptographicHash.Sha1	Generate an SHA-1 hash sum
QCryptographicHash.Sha224	Generate an SHA-224 hash sum (SHA-2). Introduced in Qt 5.0
QCryptographicHash.Sha256	Generate an SHA-256 hash sum (SHA-2). Introduced in Qt 5.0
QCryptographicHash.Sha384	Generate an SHA-384 hash sum (SHA-2). Introduced in Qt 5.0
QCryptographicHash.Sha512	Generate an SHA-512 hash sum (SHA-2). Introduced in Qt 5.0
QCryptographicHash.Sha3_224	Generate an SHA3-224 hash sum. Introduced in Qt 5.1
QCryptographicHash.Sha3_256	Generate an SHA3-256 hash sum. Introduced in Qt 5.1
QCryptographicHash.Sha3_384	Generate an SHA3-384 hash sum. Introduced in Qt 5.1
QCryptographicHash.Sha3_512	Generate an SHA3-512 hash sum. Introduced in Qt 5.1
QCryptographicHash.Keccak_224	Generate a Keccak-224 hash sum. Introduced in Qt 5.9.2
QCryptographicHash.Keccak_256	Generate a Keccak-256 hash sum. Introduced in Qt 5.9.2
QCryptographicHash.Keccak_384	Generate a Keccak-384 hash sum. Introduced in Qt 5.9.2
QCryptographicHash.Keccak_512	Generate a Keccak-512 hash sum. Introduced in Qt 5.9.2
QCryptographicHash.Blake2b_160	Generate a BLAKE2b-160 hash sum. Introduced in Qt 6.0
QCryptographicHash.Blake2b_256	Generate a BLAKE2b-256 hash sum. Introduced in Qt 6.0
QCryptographicHash.Blake2b_384	Generate a BLAKE2b-384 hash sum. Introduced in Qt 6.0
QCryptographicHash.Blake2b_512	Generate a BLAKE2b-512 hash sum. Introduced in Qt 6.0
QCryptographicHash.Blake2s_128	Generate a BLAKE2s-128 hash sum. Introduced in Qt 6.0
QCryptographicHash.Blake2s_160	Generate a BLAKE2s-160 hash sum. Introduced in Qt 6.0
QCryptographicHash.Blake2s_224	Generate a BLAKE2s-224 hash sum. Introduced in Qt 6.0
QCryptographicHash.Blake2s_256	Generate a BLAKE2s-256 hash sum. Introduced in Qt 6.0

PySide6.QtCore.QCryptographicHash.addData(device)

Parameters

device – PySide6.QtCore.QIODevice

Return type

bool

Reads the data from the open QIODevice device until it ends and hashes it. Returns true if reading was successful.

PySide6.QtCore.QCryptographicHash.addData(data)

Parameters

data – PySide6.QtCore.QByteArray

This function overloads addData() .

PySide6.QtCore.QCryptographicHash.addData(data)

Parameters

data – str

Adds the first length chars of data to the cryptographic hash.

static PySide6.QtCore.QCryptographicHash.hash(data, method)

Parameters

• data – PySide6.QtCore.QByteArray

• method – Algorithm

Return type

PySide6.QtCore.QByteArray

Returns the hash of data using method.

static PySide6.QtCore.QCryptographicHash.hashLength(method)

Parameters

method – Algorithm

Return type

int

Returns the size of the output of the selected hash method in bytes.

PySide6.QtCore.QCryptographicHash.reset()

Resets the object.

PySide6.QtCore.QCryptographicHash.result()

Return type

PySide6.QtCore.QByteArray

Returns the final hash value.

See also

toHex()