Articolo
11/18/2011

Aes Class

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Represents the abstract base class from which all implementations of the Advanced Encryption Standard (AES) must inherit.

Inheritance Hierarchy

System.Object
  System.Security.Cryptography.SymmetricAlgorithm
    System.Security.Cryptography.Aes
      System.Security.Cryptography.AesManaged

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

Syntax

'Declaration
<TypeForwardedFromAttribute("System.Core, Version=2.0.5.0, Culture=Neutral, PublicKeyToken=7cec85d7bea7798e")> _
Public MustInherit Class Aes _
    Inherits SymmetricAlgorithm

[TypeForwardedFromAttribute("System.Core, Version=2.0.5.0, Culture=Neutral, PublicKeyToken=7cec85d7bea7798e")]
public abstract class Aes : SymmetricAlgorithm

The Aes type exposes the following members.

Constructors

	Name	Description
	Aes	Initializes a new instance of the Aes class.

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Properties

	Name	Description
	BlockSize	Gets or sets the block 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	Gets or sets the secret key for the symmetric algorithm. (Inherited from SymmetricAlgorithm.)
	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.)

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Methods

	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(array<Byte[], array<Byte[])	When overridden in a derived class, creates a symmetric decryptor object with the specified Key property and initialization vector (IV). (Inherited from SymmetricAlgorithm.)
	CreateEncryptor()	Creates a symmetric encryptor object with the current Key property and initialization vector (IV). (Inherited from SymmetricAlgorithm.)
	CreateEncryptor(array<Byte[], array<Byte[])	When overridden in a derived class, creates a symmetric encryptor object with the specified Key property and initialization vector (IV). (Inherited from SymmetricAlgorithm.)
	Dispose	Releases the unmanaged resources used by the SymmetricAlgorithm and optionally releases the managed resources. (Inherited from SymmetricAlgorithm.)
	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 the Object is reclaimed by garbage collection. (Inherited from Object.)
	GenerateIV	When overridden in a derived class, generates a random initialization vector (IV) to use for the algorithm. (Inherited from SymmetricAlgorithm.)
	GenerateKey	When overridden in a derived class, generates a random key (Key) to use for the algorithm. (Inherited from SymmetricAlgorithm.)
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)
	ValidKeySize	Determines whether the specified key size is valid for the current algorithm. (Inherited from SymmetricAlgorithm.)

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Fields

	Name	Description
	BlockSizeValue	Represents the block size, in bits, of the cryptographic operation. (Inherited from SymmetricAlgorithm.)
	IVValue	Represents the initialization vector (IV) for the symmetric algorithm. (Inherited from SymmetricAlgorithm.)
	KeySizeValue	Represents the size, in bits, of the secret key used by the symmetric algorithm. (Inherited from SymmetricAlgorithm.)
	KeyValue	Represents the secret key for the symmetric algorithm. (Inherited from SymmetricAlgorithm.)
	LegalBlockSizesValue	Specifies the block sizes, in bits, that are supported by the symmetric algorithm. (Inherited from SymmetricAlgorithm.)
	LegalKeySizesValue	Specifies the key sizes, in bits, that are supported by the symmetric algorithm. (Inherited from SymmetricAlgorithm.)

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Explicit Interface Implementations

	Name	Description
	IDisposable.Dispose	Infrastructure. Releases the unmanaged resources used by the SymmetricAlgorithm and optionally releases the managed resources. (Inherited from SymmetricAlgorithm.)

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Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Thread Safety

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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