CryptoConfig Class
Accesses the cryptography configuration information.
Assembly: mscorlib (in mscorlib.dll)
The CryptoConfig type exposes the following members.
| Name | Description | |
|---|---|---|
![]() ![]() | AllowOnlyFipsAlgorithms | Indicates whether the runtime should enforce the policy to create only Federal Information Processing Standard (FIPS) certified algorithms. |
| Name | Description | |
|---|---|---|
![]() ![]() | AddAlgorithm | Adds a set of names to algorithm mappings to be used for the current application domain. |
![]() ![]() | AddOID | Adds a set of names to object identifier (OID) mappings to be used for the current application domain. |
![]() ![]() | CreateFromName(String) | Creates a new instance of the specified cryptographic object. |
![]() ![]() | CreateFromName(String, array<Object>) | Creates a new instance of the specified cryptographic object with the specified arguments. |
![]() ![]() | EncodeOID | Encodes the specified object identifier (OID). |
![]() | Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
![]() | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
![]() | GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
![]() | GetType | Gets the Type of the current instance. (Inherited from Object.) |
![]() ![]() | MapNameToOID | Gets the object identifier (OID) of the algorithm corresponding to the specified simple name. |
![]() | MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
![]() | ToString | Returns a string that represents the current object. (Inherited from Object.) |
The following table shows the simple names recognized by this class and the default algorithm implementations to which they map. Alternatively, you can map other implementations to these names, as described in Mapping Algorithm Names to Cryptography Classes.
Simple name | Algorithm implementation |
|---|---|
3DES, Triple DES, TripleDES, System.Security.Cryptography.TripleDES | |
AES, System.Security.Cryptography.AesCryptoServiceProvider | |
AesManaged, System.Security.Cryptography.AesManaged | |
System.Security.Cryptography.AsymmetricAlgorithm | |
DES, System.Security.Cryptography.DES | |
DSA, System.Security.Cryptography.DSA | |
ECDH, ECDiffieHellman, ECDiffieHellmanCng, System.Security.Cryptography.ECDiffieHellmanCng | |
ECDsa, ECDsaCng, System.Security.Cryptography.ECDsaCng | |
System.Security.Cryptography.HashAlgorithm | |
HMAC, System.Security.Cryptography.HMAC | |
HMACMD5, System.Security.Cryptography.HMACMD5 | |
HMACRIPEMD160, System.Security.Cryptography.HMACRIPEMD160 | |
HMACSHA1, System.Security.Cryptography.HMACSHA1 | |
HMACSHA256, System.Security.Cryptography.HMACSHA256 | |
HMACSHA384, System.Security.Cryptography.HMACSHA384 | |
HMACSHA512, System.Security.Cryptography.HMACSHA512 | |
System.Security.Cryptography.KeyedHashAlgorithm | |
MACTripleDES, System.Security.Cryptography.MACTripleDES | |
MD5, System.Security.Cryptography.MD5 | |
System.Security.Cryptography.MD5Cng | |
RandomNumberGenerator | |
RC2, System.Security.Cryptography.RC2 | |
Rijndael, System.Security.Cryptography.Rijndael | |
RIPEMD160, RIPEMD-160, System.Security.Cryptography.RIPEMD160Managed | |
RSA, System.Security.Cryptography.RSA | |
SHA, SHA1, System.Security.Cryptography.SHA1 | |
System.Security.Cryptography.SHA1Cng | |
SHA256, SHA-256, System.Security.Cryptography.SHA256 | |
System.Security.Cryptography.SHA256Cng | |
System.Security.Cryptography.SHA256CryptoServiceProvider | |
SHA384, SHA-384, System.Security.Cryptography.SHA384 | |
System.Security.Cryptography.SHA384Cng | |
System.Security.Cryptography.SHA384CryptoServiceProvider | |
SHA512, SHA-512, System.Security.Cryptography.SHA512 | |
System.Security.Cryptography.SHA512Cng | |
System.Security.Cryptography.SHA512CryptoServiceProvider | |
System.Security.Cryptography.SymmetricAlgorithm |
The following code example demonstrates how to use members of the CryptoConfig class.
using namespace System; using namespace System::Security::Cryptography; int main() { // Create a CryptoConfig object to store configuration information. CryptoConfig^ cryptoConfig = gcnew CryptoConfig; // Retrieve the class path for CryptoConfig. String^ classDescription = cryptoConfig->ToString(); // Create a new SHA1 provider. SHA1CryptoServiceProvider^ SHA1alg = dynamic_cast<SHA1CryptoServiceProvider^>( CryptoConfig::CreateFromName( L"SHA1" )); // Create an RSAParameters with the TestContainer key container. CspParameters^ parameters = gcnew CspParameters; parameters->KeyContainerName = L"TestContainer"; array<Object^>^argsArray = gcnew array<Object^>(1){ parameters }; // Instantiate the RSA provider instance accessing the TestContainer // key container. RSACryptoServiceProvider^ rsaProvider = static_cast<RSACryptoServiceProvider^>( CryptoConfig::CreateFromName( L"RSA", argsArray )); // Use the MapNameToOID method to get an object identifier // (OID) from the string name of the SHA1 algorithm. String^ sha1Oid = CryptoConfig::MapNameToOID( L"SHA1" ); // Encode the specified object identifier. array<Byte>^encodedMessage = CryptoConfig::EncodeOID( sha1Oid ); // Display the results to the console. Console::WriteLine( L"** {0} **", classDescription ); Console::WriteLine( L"Created an RSA provider with a KeyContainerName called {0}.", parameters->KeyContainerName ); Console::WriteLine( L"Object identifier from the SHA1 name:{0}", sha1Oid ); Console::WriteLine( L"The object identifier encoded: {0}", System::Text::Encoding::ASCII->GetString( encodedMessage ) ); Console::WriteLine( L"This sample completed successfully; press Enter to exit." ); Console::ReadLine(); } // // This sample produces the following output: // // ** System.Security.Cryptography.CryptoConfig ** // Created an RSA provider with a KeyContainerName called TestContainer. // Object identifier from the SHA1 name:1.3.14.3.2.26 // The object identifier encoded: HH*((*H9 // This sample completed successfully; press Enter to exit.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
