SHA512Managed 类

定义

使用托管库计算输入数据的 SHA512 哈希算法。Computes the SHA512 hash algorithm for the input data using the managed library.

public ref class SHA512Managed : System::Security::Cryptography::SHA512
[System.Runtime.InteropServices.ComVisible(true)]
public class SHA512Managed : System.Security.Cryptography.SHA512
type SHA512Managed = class
    inherit SHA512
Public Class SHA512Managed
Inherits SHA512
继承
SHA512Managed
属性

示例

下面的示例计算的SHA512Managed data哈希值,并将result其存储在中。The following example computes the SHA512Managed hash for data and stores it in result. 此示例假设有一个预定义的常量DATA_SIZEThis example assumes that there is a predefined constant DATA_SIZE.

array<Byte>^ data = gcnew array<Byte>( DATA_SIZE );
array<Byte>^ result;

SHA512^ shaM = gcnew SHA512Managed;
result = shaM->ComputeHash( data );
byte[] data = new byte[DATA_SIZE]; 
byte[] result;
 
SHA512 shaM = new SHA512Managed(); 
result = shaM.ComputeHash(data);
Dim data(DATA_SIZE) As Byte
Dim result() As Byte
       
Dim shaM As New SHA512Managed()
result = shaM.ComputeHash(data)

注解

哈希值用作表示大量数据的固定大小的唯一值。The hash is used as a unique value of fixed size representing a large amount of data. 当且仅当相应的数据也匹配时,两组数据的哈希才会匹配。Hashes of two sets of data should match if and only if the corresponding data also matches. 对数据的小更改会导致哈希中的大量无法预测的更改。Small changes to the data result in large unpredictable changes in the hash.

SHA512Managed算法的哈希大小为512位。The hash size for the SHA512Managed algorithm is 512 bits.

构造函数

SHA512Managed()

初始化 SHA512Managed 类的新实例。Initializes a new instance of the SHA512Managed class.

字段

HashSizeValue

表示计算所得的哈希代码的大小(以位为单位)。Represents the size, in bits, of the computed hash code.

(继承自 HashAlgorithm)
HashValue

表示计算所得的哈希代码的值。Represents the value of the computed hash code.

(继承自 HashAlgorithm)
State

表示哈希计算的状态。Represents the state of the hash computation.

(继承自 HashAlgorithm)

属性

CanReuseTransform

获取一个值,该值指示是否可重复使用当前转换。Gets a value indicating whether the current transform can be reused.

(继承自 HashAlgorithm)
CanTransformMultipleBlocks

当在派生类中重写时,获取一个值,该值指示是否可以转换多个块。When overridden in a derived class, gets a value indicating whether multiple blocks can be transformed.

(继承自 HashAlgorithm)
Hash

获取计算所得的哈希代码的值。Gets the value of the computed hash code.

(继承自 HashAlgorithm)
HashSize

获取计算所得的哈希代码的大小(以位为单位)。Gets the size, in bits, of the computed hash code.

(继承自 HashAlgorithm)
InputBlockSize

当在派生类中重写时,获取输入块的大小。When overridden in a derived class, gets the input block size.

(继承自 HashAlgorithm)
OutputBlockSize

当在派生类中重写时,获取输出块的大小。When overridden in a derived class, gets the output block size.

(继承自 HashAlgorithm)

方法

Clear()

释放 HashAlgorithm 类使用的所有资源。Releases all resources used by the HashAlgorithm class.

(继承自 HashAlgorithm)
ComputeHash(Byte[])

计算指定字节数组的哈希值。Computes the hash value for the specified byte array.

(继承自 HashAlgorithm)
ComputeHash(Byte[], Int32, Int32)

计算指定字节数组的指定区域的哈希值。Computes the hash value for the specified region of the specified byte array.

(继承自 HashAlgorithm)
ComputeHash(Stream)

计算指定 Stream 对象的哈希值。Computes the hash value for the specified Stream object.

(继承自 HashAlgorithm)
Dispose()

释放 HashAlgorithm 类的当前实例所使用的所有资源。Releases all resources used by the current instance of the HashAlgorithm class.

(继承自 HashAlgorithm)
Dispose(Boolean)

释放由 SHA512Managed 对象使用的非托管资源并(可选)释放托管资源。Releases unmanaged resources used by the SHA512Managed object and optionally releases the managed resources.

Equals(Object)

确定指定的对象是否等于当前对象。Determines whether the specified object is equal to the current object.

(继承自 Object)
Finalize()
GetHashCode()

用作默认哈希函数。Serves as the default hash function.

(继承自 Object)
GetType()

获取当前实例的 TypeGets the Type of the current instance.

(继承自 Object)
HashCore(Byte[], Int32, Int32)

当在派生类中重写时,将写入对象的数据路由到 SHA512Managed 哈希算法以计算哈希值。When overridden in a derived class, routes data written to the object into the SHA512Managed hash algorithm for computing the hash.

HashCore(ReadOnlySpan<Byte>)
HashFinal()

当在派生类中重写时,在加密流对象处理完最后的数据后完成哈希计算。When overridden in a derived class, finalizes the hash computation after the last data is processed by the cryptographic stream object.

Initialize()

使用托管库初始化 SHA512Managed 类的实例。Initializes an instance of the SHA512Managed class using the managed library.

MemberwiseClone()

创建当前 Object 的浅表副本。Creates a shallow copy of the current Object.

(继承自 Object)
ToString()

返回一个表示当前对象的 string。Returns a string that represents the current object.

(继承自 Object)
TransformBlock(Byte[], Int32, Int32, Byte[], Int32)

计算输入字节数组指定区域的哈希值,并将输入字节数组指定区域复制到输出字节数组的指定区域。Computes the hash value for the specified region of the input byte array and copies the specified region of the input byte array to the specified region of the output byte array.

(继承自 HashAlgorithm)
TransformFinalBlock(Byte[], Int32, Int32)

计算指定字节数组的指定区域的哈希值。Computes the hash value for the specified region of the specified byte array.

(继承自 HashAlgorithm)
TryComputeHash(ReadOnlySpan<Byte>, Span<Byte>, Int32) (继承自 HashAlgorithm)
TryHashFinal(Span<Byte>, Int32)

显式界面实现

IDisposable.Dispose()

释放由 HashAlgorithm 占用的非托管资源,还可以另外再释放托管资源。Releases the unmanaged resources used by the HashAlgorithm and optionally releases the managed resources.

(继承自 HashAlgorithm)

适用于

另请参阅