KeyedHashAlgorithm.Create 方法

定义

创建加密哈希算法实现的实例。

重载

Create()
已过时.
已过时.

创建加密哈希算法的默认实现的实例。

Create(String)
已过时.

创建加密哈希算法的指定实现的实例。

Create()

Source:
KeyedHashAlgorithm.cs
Source:
KeyedHashAlgorithm.cs
Source:
KeyedHashAlgorithm.cs

注意

The default implementation of this cryptography algorithm is not supported

注意

The default implementation of this cryptography algorithm is not supported.

创建加密哈希算法的默认实现的实例。

public:
 static System::Security::Cryptography::KeyedHashAlgorithm ^ Create();
[System.Obsolete("The default implementation of this cryptography algorithm is not supported", DiagnosticId="SYSLIB0007", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public static System.Security.Cryptography.KeyedHashAlgorithm Create ();
[System.Obsolete("The default implementation of this cryptography algorithm is not supported.", DiagnosticId="SYSLIB0007", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public static System.Security.Cryptography.KeyedHashAlgorithm Create ();
public static System.Security.Cryptography.KeyedHashAlgorithm Create ();
[<System.Obsolete("The default implementation of this cryptography algorithm is not supported", DiagnosticId="SYSLIB0007", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
static member Create : unit -> System.Security.Cryptography.KeyedHashAlgorithm
[<System.Obsolete("The default implementation of this cryptography algorithm is not supported.", DiagnosticId="SYSLIB0007", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
static member Create : unit -> System.Security.Cryptography.KeyedHashAlgorithm
static member Create : unit -> System.Security.Cryptography.KeyedHashAlgorithm
Public Shared Function Create () As KeyedHashAlgorithm

返回

HMACSHA1 实例,除非已更改默认设置。

属性

注解

默认情况下,此重载使用 HMACSHA1 键控哈希算法的实现。 如果要指定其他实现,请使用 Create(String) 重载,它允许指定算法名称。 加密配置系统定义 类的默认实现 KeyedHashAlgorithm

由于 SHA1 出现冲突问题,Microsoft 建议使用基于 SHA256 或更好的安全模型。

另请参阅

适用于

Create(String)

Source:
KeyedHashAlgorithm.cs
Source:
KeyedHashAlgorithm.cs
Source:
KeyedHashAlgorithm.cs

注意

Cryptographic factory methods accepting an algorithm name are obsolete. Use the parameterless Create factory method on the algorithm type instead.

创建加密哈希算法的指定实现的实例。

public:
 static System::Security::Cryptography::KeyedHashAlgorithm ^ Create(System::String ^ algName);
public static System.Security.Cryptography.KeyedHashAlgorithm? Create (string algName);
[System.Obsolete("Cryptographic factory methods accepting an algorithm name are obsolete. Use the parameterless Create factory method on the algorithm type instead.", DiagnosticId="SYSLIB0045", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public static System.Security.Cryptography.KeyedHashAlgorithm? Create (string algName);
public static System.Security.Cryptography.KeyedHashAlgorithm Create (string algName);
static member Create : string -> System.Security.Cryptography.KeyedHashAlgorithm
[<System.Obsolete("Cryptographic factory methods accepting an algorithm name are obsolete. Use the parameterless Create factory method on the algorithm type instead.", DiagnosticId="SYSLIB0045", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
static member Create : string -> System.Security.Cryptography.KeyedHashAlgorithm
Public Shared Function Create (algName As String) As KeyedHashAlgorithm

参数

algName
String

要使用的加密哈希算法实现。 下表显示 algName 参数的有效值以及它们映射到的算法。

参数值 实现为其类型参数
System.Security.Cryptography.HMACHMACSHA1
System.Security.Cryptography.KeyedHashAlgorithmHMACSHA1
HMACMD5HMACMD5
System.Security.Cryptography.HMACMD5HMACMD5
HMACRIPEMD160HMACRIPEMD160
System.Security.Cryptography.HMACRIPEMD160HMACRIPEMD160
HMACSHA1HMACSHA1
System.Security.Cryptography.HMACSHA1HMACSHA1
HMACSHA256HMACSHA256
System.Security.Cryptography.HMACSHA256HMACSHA256
HMACSHA384HMACSHA384
System.Security.Cryptography.HMACSHA384HMACSHA384
HMACSHA512HMACSHA512
System.Security.Cryptography.HMACSHA512HMACSHA512
MACTripleDESMACTripleDES
System.Security.Cryptography.MACTripleDESMACTripleDES

返回

指定的加密哈希算法的新实例。

属性

例外

.NET Core 2.0 - 3.1 和 .NET 5 及更高版本:在所有情况下。

注解

此方法在 .NET 5 及更高版本中已过时。

此方法支持多种算法,包括 MD5、SHA-1、SHA-256 和 RIPEMD160。 有关完整列表,请参阅 参数支持的值 algName

另请参阅

适用于