內容

• 公共類型
• 公共函數
• 靜態公共成員
• 詳細描述

QCryptographicHash 類

The QCryptographicHash class provides a way to generate cryptographic hashes. 更多...

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

• 所有成員列錶，包括繼承成員

注意： 此類的所有函數 可重入 .

公共類型

enum	Algorithm { Md4, Md5, Sha1, Sha224, ..., Keccak_512 }

公共函數

	QCryptographicHash (QCryptographicHash::Algorithm method )
	~QCryptographicHash ()
void	addData (const char * data , int length )
void	addData (const QByteArray & data )
bool	addData (QIODevice * device )
void	reset ()
QByteArray	result () const

靜態公共成員

QByteArray	hash (const QByteArray & data , QCryptographicHash::Algorithm method )
int	hashLength (QCryptographicHash::Algorithm method )
const QMetaObject	staticMetaObject

詳細描述

The QCryptographicHash class provides a way to generate cryptographic hashes.

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

參考文檔編製中 QCryptographicHash::Algorithm 枚舉，支持的算法列錶。

成員類型文檔編製

enum QCryptographicHash:: Algorithm

注意： 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 .

常量	值	描述
QCryptographicHash::Md4	0	生成 MD4 哈希和
QCryptographicHash::Md5	1	生成 MD5 哈希和
QCryptographicHash::Sha1	2	生成 SHA-1 哈希和
QCryptographicHash::Sha224	3	生成 SHA-224 哈希和 (SHA-2)。在 Qt 5.0 引入
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

成員函數文檔編製

QCryptographicHash:: QCryptographicHash ( QCryptographicHash::Algorithm method )

構造可用於從數據創建加密哈希的對象，使用 method .

QCryptographicHash:: ~QCryptographicHash ()

銷毀對象。

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 )

此函數重載 addData ().

bool QCryptographicHash:: addData ( QIODevice * device )

讀取數據，從打開 QIODevice device 直到它結束並哈希為止。返迴 true 若讀取是成功的。

該函數在 Qt 5.0 引入。

[static] QByteArray QCryptographicHash:: hash (const QByteArray & data , QCryptographicHash::Algorithm method )

返迴哈希為 data 使用 method .

[static] int QCryptographicHash:: hashLength ( QCryptographicHash::Algorithm method )

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

該函數在 Qt 5.12 引入。

void QCryptographicHash:: reset ()

重置對象。

QByteArray QCryptographicHash:: result () const

返迴最終的哈希值。

另請參閱 QByteArray::toHex ().