AesManaged Class

 

Provides a managed implementation of the Advanced Encryption Standard (AES) symmetric algorithm.

Namespace:   System.Security.Cryptography
Assembly:  System.Core (in System.Core.dll)


[<Sealed>]
type AesManaged = 
    class
        inherit Aes
    end

NameDescription
System_CAPS_pubmethodAesManaged()

Initializes a new instance of the AesManaged class.

NameDescription
System_CAPS_pubpropertyBlockSize

Gets or sets the block size, in bits, of the cryptographic operation.(Inherited from SymmetricAlgorithm.)

System_CAPS_pubpropertyFeedbackSize

Gets or sets the number of bits to use as feedback. (Overrides SymmetricAlgorithm.FeedbackSize.)

System_CAPS_pubpropertyIV

Gets or sets the initialization vector (IV) to use for the symmetric algorithm. (Overrides SymmetricAlgorithm.IV.)

System_CAPS_pubpropertyKey

Gets or sets the secret key used for the symmetric algorithm.(Overrides SymmetricAlgorithm.Key.)

System_CAPS_pubpropertyKeySize

Gets or sets the size, in bits, of the secret key used for the symmetric algorithm. (Overrides SymmetricAlgorithm.KeySize.)

System_CAPS_pubpropertyLegalBlockSizes

Gets the block sizes, in bits, that are supported by the symmetric algorithm.(Inherited from SymmetricAlgorithm.)

System_CAPS_pubpropertyLegalKeySizes

Gets the key sizes, in bits, that are supported by the symmetric algorithm.(Inherited from SymmetricAlgorithm.)

System_CAPS_pubpropertyMode

Gets or sets the mode for operation of the symmetric algorithm.(Overrides SymmetricAlgorithm.Mode.)

System_CAPS_pubpropertyPadding

Gets or sets the padding mode used in the symmetric algorithm. (Overrides SymmetricAlgorithm.Padding.)

NameDescription
System_CAPS_pubmethodClear()

Releases all resources used by the SymmetricAlgorithm class.(Inherited from SymmetricAlgorithm.)

System_CAPS_pubmethodCreateDecryptor()

Creates a symmetric decryptor object using the current key and initialization vector (IV).(Overrides SymmetricAlgorithm.CreateDecryptor().)

System_CAPS_pubmethodCreateDecryptor(Byte[], Byte[])

Creates a symmetric decryptor object using the specified key and initialization vector (IV).(Overrides SymmetricAlgorithm.CreateDecryptor(Byte[], Byte[]).)

System_CAPS_pubmethodCreateEncryptor()

Creates a symmetric encryptor object using the current key and initialization vector (IV).(Overrides SymmetricAlgorithm.CreateEncryptor().)

System_CAPS_pubmethodCreateEncryptor(Byte[], Byte[])

Creates a symmetric encryptor object using the specified key and initialization vector (IV).(Overrides SymmetricAlgorithm.CreateEncryptor(Byte[], Byte[]).)

System_CAPS_pubmethodDispose()

Releases all resources used by the current instance of the SymmetricAlgorithm class.(Inherited from SymmetricAlgorithm.)

System_CAPS_pubmethodEquals(Object)

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_pubmethodGenerateIV()

Generates a random initialization vector (IV) to use for the symmetric algorithm.(Overrides SymmetricAlgorithm.GenerateIV().)

System_CAPS_pubmethodGenerateKey()

Generates a random key to use for the symmetric algorithm. (Overrides SymmetricAlgorithm.GenerateKey().)

System_CAPS_pubmethodGetHashCode()

Serves as the default hash function. (Inherited from Object.)

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_pubmethodToString()

Returns a string that represents the current object.(Inherited from Object.)

System_CAPS_pubmethodValidKeySize(Int32)

Determines whether the specified key size is valid for the current algorithm.(Inherited from SymmetricAlgorithm.)

The AES algorithm is essentially the Rijndael symmetric algorithm with a fixed block size and iteration count. This class functions the same way as the RijndaelManaged class but limits blocks to 128 bits and does not allow feedback modes.

System_CAPS_noteNote

If the Windows security policy setting for Federal Information Processing Standards (FIPS)-compliant algorithms is enabled, using this algorithm throws a CryptographicException.

The following example demonstrates how to encrypt and decrypt sample data using the AesManaged class.

No code example is currently available or this language may not be supported.

.NET Framework
Available since 3.5
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0

Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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