QCryptographicHash 类提供生成加密哈希的办法。 更多...
头: | #include <QCryptographicHash> |
qmake: | QT += core |
Since: | Qt 4.3 |
该类在 Qt 4.3 引入。
注意: 此类的所有函数 可重入 .
enum | Algorithm { Md4, Md5, Sha1, Sha224, Sha256, …, Keccak_512 } |
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 |
QByteArray | hash (const QByteArray & data , QCryptographicHash::Algorithm method ) |
int | hashLength (QCryptographicHash::Algorithm method ) |
QCryptographicHash 可用于生成二进制 (或文本数据) 的加密哈希。
参考文档编制中 QCryptographicHash::Algorithm 枚举,支持的算法列表。
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 |
构造可用于从数据创建加密哈希的对象,使用 method .
销毁对象。
Adds the first length chars of data to the cryptographic hash.
此函数重载 addData()。
读取数据,从打开
QIODevice
device
直到它结束并哈希为止。返回
true
若读取是成功的。
该函数在 Qt 5.0 引入。
[static]
QByteArray
QCryptographicHash::
hash
(const
QByteArray
&
data
,
QCryptographicHash::Algorithm
method
)
返回哈希为 data 使用 method .
[static]
int
QCryptographicHash::
hashLength
(
QCryptographicHash::Algorithm
method
)
Returns the size of the output of the selected hash method in bytes.
该函数在 Qt 5.12 引入。
重置对象。
返回最终的哈希值。
另请参阅 QByteArray::toHex ().