TripleDESCryptoServiceProvider Class
Defines a wrapper object to access the cryptographic service provider (CSP) version of the TripleDES algorithm. This class cannot be inherited.
Assembly: mscorlib (in mscorlib.dll)
System.Security.Cryptography.SymmetricAlgorithm
System.Security.Cryptography.TripleDES
System.Security.Cryptography.TripleDESCryptoServiceProvider
| Name | Description | |
|---|---|---|
![]() | TripleDESCryptoServiceProvider() | Initializes a new instance of the TripleDESCryptoServiceProvider class. |
| Name | Description | |
|---|---|---|
![]() | BlockSize | Gets or sets the block size, in bits, of the cryptographic operation.(Inherited from SymmetricAlgorithm.) |
![]() | FeedbackSize | Gets or sets the feedback size, in bits, of the cryptographic operation.(Inherited from SymmetricAlgorithm.) |
![]() | IV | Gets or sets the initialization vector (IV) for the symmetric algorithm.(Inherited from SymmetricAlgorithm.) |
![]() | Key | |
![]() | KeySize | Gets or sets the size, in bits, of the secret key used by the symmetric algorithm.(Inherited from SymmetricAlgorithm.) |
![]() | LegalBlockSizes | Gets the block sizes, in bits, that are supported by the symmetric algorithm.(Inherited from SymmetricAlgorithm.) |
![]() | LegalKeySizes | Gets the key sizes, in bits, that are supported by the symmetric algorithm.(Inherited from SymmetricAlgorithm.) |
![]() | Mode | Gets or sets the mode for operation of the symmetric algorithm.(Inherited from SymmetricAlgorithm.) |
![]() | Padding | Gets or sets the padding mode used in the symmetric algorithm.(Inherited from SymmetricAlgorithm.) |
| Name | Description | |
|---|---|---|
![]() | Clear() | Releases all resources used by the SymmetricAlgorithm class.(Inherited from SymmetricAlgorithm.) |
![]() | CreateDecryptor() | Creates a symmetric decryptor object with the current Key property and initialization vector (IV).(Inherited from SymmetricAlgorithm.) |
![]() | CreateDecryptor(Byte[], Byte[]) | Creates a symmetric TripleDES decryptor object with the specified key (Key) and initialization vector (IV).(Overrides SymmetricAlgorithm.CreateDecryptor(Byte[], Byte[]).) |
![]() | CreateEncryptor() | Creates a symmetric encryptor object with the current Key property and initialization vector (IV).(Inherited from SymmetricAlgorithm.) |
![]() | CreateEncryptor(Byte[], Byte[]) | Creates a symmetric TripleDES encryptor object with the specified key (Key) and initialization vector (IV).(Overrides SymmetricAlgorithm.CreateEncryptor(Byte[], Byte[]).) |
![]() | Dispose() | Releases all resources used by the current instance of the SymmetricAlgorithm class.(Inherited from SymmetricAlgorithm.) |
![]() | Equals(Object) | Determines whether the specified object is equal to the current object.(Inherited from Object.) |
![]() | GenerateIV() | Generates a random initialization vector (IV) to use for the algorithm.(Overrides SymmetricAlgorithm.GenerateIV().) |
![]() | GenerateKey() | Generates a random Key to be used for the algorithm.(Overrides SymmetricAlgorithm.GenerateKey().) |
![]() | GetHashCode() | Serves as the default hash function. (Inherited from Object.) |
![]() | GetType() | |
![]() | ToString() | Returns a string that represents the current object.(Inherited from Object.) |
![]() | ValidKeySize(Int32) | Determines whether the specified key size is valid for the current algorithm.(Inherited from SymmetricAlgorithm.) |
This algorithm supports key lengths from 128 bits to 192 bits in increments of 64 bits.
Note |
|---|
A newer symmetric encryption algorithm, Advanced Encryption Standard (AES), is available. Consider using the AesCryptoServiceProvider class instead of the TripleDESCryptoServiceProvider class. Use TripleDESCryptoServiceProvider only for compatibility with legacy applications and data. |
The following code example creates a TripleDESCryptoServiceProvider object and uses it to encrypt and decrypt data in a file.
The following code example creates a TripleDESCryptoServiceProvider object and uses it to encrypt and decrypt data in memory.
Available since 1.1
Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.


