KeyedHashAlgorithm.Create 方法
定义
重要
一些信息与预发行产品相关,相应产品在发行之前可能会进行重大修改。 对于此处提供的信息,Microsoft 不作任何明示或暗示的担保。
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
新 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.HMAC | HMACSHA1 |
System.Security.Cryptography.KeyedHashAlgorithm | HMACSHA1 |
HMACMD5 | HMACMD5 |
System.Security.Cryptography.HMACMD5 | HMACMD5 |
HMACRIPEMD160 | HMACRIPEMD160 |
System.Security.Cryptography.HMACRIPEMD160 | HMACRIPEMD160 |
HMACSHA1 | HMACSHA1 |
System.Security.Cryptography.HMACSHA1 | HMACSHA1 |
HMACSHA256 | HMACSHA256 |
System.Security.Cryptography.HMACSHA256 | HMACSHA256 |
HMACSHA384 | HMACSHA384 |
System.Security.Cryptography.HMACSHA384 | HMACSHA384 |
HMACSHA512 | HMACSHA512 |
System.Security.Cryptography.HMACSHA512 | HMACSHA512 |
MACTripleDES | MACTripleDES |
System.Security.Cryptography.MACTripleDES | MACTripleDES |
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
。