QCryptographicHash 类提供生成加密哈希的办法。 更多...
| 头： | #include <QCryptographicHash> |
| CMake: |
find_package(Qt6 REQUIRED COMPONENTS Core)
target_link_libraries(mytarget PRIVATE Qt6::Core) |
| qmake: | QT += core |
注意： 此类的所有函数 可重入 .
| enum | Algorithm { Md4, Md5, Sha1, Sha224, Sha256, …, Blake2s_256 } |
| QCryptographicHash (QCryptographicHash::Algorithm method ) | |
| QCryptographicHash (QCryptographicHash && other ) | |
| ~QCryptographicHash () | |
| void | addData (QByteArrayView bytes ) |
| bool | addData (QIODevice * device ) |
| QCryptographicHash::Algorithm | algorithm () const |
| void | reset () |
| QByteArray | result () const |
| QByteArrayView | resultView () const |
| void | swap (QCryptographicHash & other ) |
| QCryptographicHash & | operator= (QCryptographicHash && other ) |
| QByteArray | hash (QByteArrayView data , QCryptographicHash::Algorithm method ) |
| int | hashLength (QCryptographicHash::Algorithm method ) |
| bool | supportsAlgorithm (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 |
QCryptographicHash::Blake2b_160
|
15
|
Generate a BLAKE2b-160 hash sum. Introduced in Qt 6.0 |
QCryptographicHash::Blake2b_256
|
16
|
Generate a BLAKE2b-256 hash sum. Introduced in Qt 6.0 |
QCryptographicHash::Blake2b_384
|
17
|
Generate a BLAKE2b-384 hash sum. Introduced in Qt 6.0 |
QCryptographicHash::Blake2b_512
|
18
|
Generate a BLAKE2b-512 hash sum. Introduced in Qt 6.0 |
QCryptographicHash::Blake2s_128
|
19
|
Generate a BLAKE2s-128 hash sum. Introduced in Qt 6.0 |
QCryptographicHash::Blake2s_160
|
20
|
Generate a BLAKE2s-160 hash sum. Introduced in Qt 6.0 |
QCryptographicHash::Blake2s_224
|
21
|
Generate a BLAKE2s-224 hash sum. Introduced in Qt 6.0 |
QCryptographicHash::Blake2s_256
|
22
|
Generate a BLAKE2s-256 hash sum. Introduced in Qt 6.0 |
[explicit]
QCryptographicHash::
QCryptographicHash
(
QCryptographicHash::Algorithm
method
)
构造可用于从数据创建加密哈希的对象，使用 method .
[since 6.5]
QCryptographicHash::
QCryptographicHash
(
QCryptographicHash
&&
other
)
Move-constructs a new QCryptographicHash from other .
注意： The moved-from object other is placed in a partially-formed state, in which the only valid operations are destruction and assignment of a new value.
该函数在 Qt 6.5 引入。
销毁对象。
Adds the characters in bytes to the cryptographic hash.
注意： In Qt versions prior to 6.3, this function took QByteArray , not QByteArrayView .
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。
[since 6.5]
QCryptographicHash::Algorithm
QCryptographicHash::
algorithm
() const
Returns the algorithm used to generate the cryptographic hash.
该函数在 Qt 6.5 引入。
[static]
QByteArray
QCryptographicHash::
hash
(
QByteArrayView
data
,
QCryptographicHash::Algorithm
method
)
返回哈希为 data 使用 method .
注意： In Qt versions prior to 6.3, this function took QByteArray , not QByteArrayView .
[static]
int
QCryptographicHash::
hashLength
(
QCryptographicHash::Algorithm
method
)
Returns the size of the output of the selected hash method in bytes.
重置对象。
返回最终的哈希值。
另请参阅 resultView () 和 QByteArray::toHex ().
[since 6.3]
QByteArrayView
QCryptographicHash::
resultView
() const
返回最终的哈希值。
Note that the returned view remains valid only as long as the QCryptographicHash object is not modified by other means.
该函数在 Qt 6.3 引入。
另请参阅 result ().
[static, since 6.5]
bool
QCryptographicHash::
supportsAlgorithm
(
QCryptographicHash::Algorithm
method
)
Returns whether the selected algorithm method is supported and if result () will return a value when the method 被使用。
注意：
OpenSSL will be responsible for providing this information when used as a provider, otherwise
true
will be returned as the non-OpenSSL implementation doesn't have any restrictions. We return
false
if we fail to query OpenSSL.
该函数在 Qt 6.5 引入。
[since 6.5]
void
QCryptographicHash::
swap
(
QCryptographicHash
&
other
)
Swaps cryptographic hash other with this cryptographic hash. This operation is very fast and never fails.
该函数在 Qt 6.5 引入。
[since 6.5]
QCryptographicHash
&QCryptographicHash::
operator=
(
QCryptographicHash
&&
other
)
移动赋值 other 到此 QCryptographicHash 实例。
注意： The moved-from object other is placed in a partially-formed state, in which the only valid operations are destruction and assignment of a new value.
该函数在 Qt 6.5 引入。