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| Class | Description |
|---|
 | Aes | Represents the abstract base class from which all implementations of the Advanced Encryption Standard (AES) must inherit. |
| AesCryptoServiceProvider | Performs symmetric encryption and decryption using the Cryptographic Application Programming Interfaces (CAPI) implementation of the Advanced Encryption Standard (AES) algorithm. |
| AesManaged | Provides a managed implementation of the Advanced Encryption Standard (AES) symmetric algorithm. |
| AsnEncodedData | Represents Abstract Syntax Notation One (ASN.1)-encoded data. |
| AsnEncodedDataCollection | Represents a collection of AsnEncodedData objects. This class cannot be inherited. |
| AsnEncodedDataEnumerator | Provides the ability to navigate through an AsnEncodedDataCollection object. This class cannot be inherited. |
| AsymmetricAlgorithm | Represents the abstract base class from which all implementations of asymmetric algorithms must inherit. |
| AsymmetricKeyExchangeDeformatter | Represents the base class from which all asymmetric key exchange deformatters derive. |
| AsymmetricKeyExchangeFormatter | Represents the base class from which all asymmetric key exchange formatters derive. |
| AsymmetricSignatureDeformatter | Represents the abstract base class from which all implementations of asymmetric signature deformatters derive. |
| AsymmetricSignatureFormatter | Represents the base class from which all implementations of asymmetric signature formatters derive. |
| CngAlgorithm | Encapsulates the name of an encryption algorithm. |
| CngAlgorithmGroup | Encapsulates the name of an encryption algorithm group. |
| CngKey | Defines the core functionality for keys that are used with Cryptography Next Generation (CNG) objects. |
| CngKeyBlobFormat | Specifies a key BLOB format for use with Microsoft Cryptography Next Generation (CNG) objects. |
| CngKeyCreationParameters | Contains advanced properties for key creation. |
| CngPropertyCollection | Provides a strongly typed collection of Cryptography Next Generation (CNG) properties. |
| CngProvider | Encapsulates the name of a key storage provider (KSP) for use with Cryptography Next Generation (CNG) objects. |
| CngUIPolicy | Encapsulates optional configuration parameters for the user interface (UI) that Cryptography Next Generation (CNG) displays when you access a protected key. |
| CryptoAPITransform | Performs a cryptographic transformation of data. This class cannot be inherited. |
| CryptoConfig | Accesses the cryptography configuration information. |
| CryptographicAttributeObject | Contains a type and a collection of values associated with that type. |
| CryptographicAttributeObjectCollection | Contains a set of CryptographicAttributeObject objects. |
| CryptographicAttributeObjectEnumerator | Provides enumeration functionality for the CryptographicAttributeObjectCollection collection. This class cannot be inherited. |
| CryptographicException | The exception that is thrown when an error occurs during a cryptographic operation. |
| CryptographicUnexpectedOperationException | The exception that is thrown when an unexpected operation occurs during a cryptographic operation. |
| CryptoStream | Defines a stream that links data streams to cryptographic transformations. |
| CspKeyContainerInfo | Provides additional information about a cryptographic key pair. This class cannot be inherited. |
| CspParameters | Contains parameters that are passed to the cryptographic service provider (CSP) that performs cryptographic computations. This class cannot be inherited. |
| DeriveBytes | Represents the abstract base class from which all classes that derive byte sequences of a specified length inherit. |
| DES | Represents the base class for the Data Encryption Standard (DES) algorithm from which all DES implementations must derive. |
| DESCryptoServiceProvider | Defines a wrapper object to access the cryptographic service provider (CSP) version of the Data Encryption Standard (DES) algorithm. This class cannot be inherited. |
| DSA | Represents the abstract base class from which all implementations of the Digital Signature Algorithm (DSA) must inherit. |
| DSACryptoServiceProvider | Defines a wrapper object to access the cryptographic service provider (CSP) implementation of the DSA algorithm. This class cannot be inherited. |
| DSASignatureDeformatter | Verifies a Digital Signature Algorithm (DSA) PKCS#1 v1.5 signature. |
| DSASignatureFormatter | Creates a Digital Signature Algorithm (DSA) signature. |
| ECDiffieHellman | Provides an abstract base class that Elliptic Curve Diffie-Hellman (ECDH) algorithm implementations can derive from. This class provides the basic set of operations that all ECDH implementations must support. |
| ECDiffieHellmanCng | Provides a Cryptography Next Generation (CNG) implementation of the Elliptic Curve Diffie-Hellman (ECDH) algorithm. This class is used to perform cryptographic operations. |
| ECDiffieHellmanCngPublicKey | Specifies an Elliptic Curve Diffie-Hellman (ECDH) public key for use with the ECDiffieHellmanCng class. |
| ECDiffieHellmanPublicKey | Provides an abstract base class from which all ECDiffieHellmanCngPublicKey implementations must inherit. |
| ECDsa | Provides an abstract base class that encapsulates the Elliptic Curve Digital Signature Algorithm (ECDSA). |
| ECDsaCng | Provides a Cryptography Next Generation (CNG) implementation of the Elliptic Curve Digital Signature Algorithm (ECDSA). |
| FromBase64Transform | Converts a CryptoStream from base 64. |
| HashAlgorithm | Represents the base class from which all implementations of cryptographic hash algorithms must derive. |
| HMAC | Represents the abstract class from which all implementations of Hash-based Message Authentication Code (HMAC) must derive. |
| HMACMD5 | Computes a Hash-based Message Authentication Code (HMAC) using the MD5 hash function. |
| HMACRIPEMD160 | Computes a Hash-based Message Authentication Code (HMAC) using the RIPEMD160 hash function. |
| HMACSHA1 | Computes a Hash-based Message Authentication Code (HMAC) using the SHA1 hash function. |
| HMACSHA256 | Computes a Hash-based Message Authentication Code (HMAC) using the SHA256 hash function. |
| HMACSHA384 | Computes a Hash-based Message Authentication Code (HMAC) using the SHA384 hash function. |
| HMACSHA512 | Computes a Hash-based Message Authentication Code (HMAC) using the SHA512 hash function. |
| KeyedHashAlgorithm | Represents the abstract class from which all implementations of keyed hash algorithms must derive. |
| KeySizes | Determines the set of valid key sizes for the symmetric cryptographic algorithms. |
| MACTripleDES | Computes a Message Authentication Code (MAC) using TripleDES for the input data CryptoStream. |
| ManifestSignatureInformation | Provides information for a manifest signature. |
| ManifestSignatureInformationCollection | Represents a read-only collection of ManifestSignatureInformation objects. |
| MaskGenerationMethod | Represents the abstract class from which all mask generator algorithms must derive. |
| MD5 | Represents the abstract class from which all implementations of the MD5 hash algorithm inherit. |
| MD5Cng | Provides a CNG (Cryptography Next Generation) implementation of the MD5 (Message Digest 5) 128-bit hashing algorithm. |
| MD5CryptoServiceProvider | Computes the MD5 hash value for the input data using the implementation provided by the cryptographic service provider (CSP). This class cannot be inherited. |
| Oid | Represents a cryptographic object identifier. This class cannot be inherited. |
| OidCollection | Represents a collection of Oid objects. This class cannot be inherited. |
| OidEnumerator | Provides the ability to navigate through an OidCollection object. This class cannot be inherited. |
| PasswordDeriveBytes | Derives a key from a password using an extension of the PBKDF1 algorithm. |
| PKCS1MaskGenerationMethod | Computes masks according to PKCS #1 for use by key exchange algorithms. |
| ProtectedData | Provides methods for protecting and unprotecting data. This class cannot be inherited. |
| ProtectedMemory | Provides methods for protecting and unprotecting memory. This class cannot be inherited. |
| RandomNumberGenerator | Represents the abstract class from which all implementations of cryptographic random number generators derive. |
| RC2 | Represents the base class from which all implementations of the RC2 algorithm must derive. |
| RC2CryptoServiceProvider | Defines a wrapper object to access the cryptographic service provider (CSP) implementation of the RC2 algorithm. This class cannot be inherited. |
| Rfc2898DeriveBytes | Implements password-based key derivation functionality, PBKDF2, by using a pseudo-random number generator based on HMACSHA1. |
| Rijndael | Represents the base class from which all implementations of the Rijndael symmetric encryption algorithm must inherit. |
| RijndaelManaged | Accesses the managed version of the Rijndael algorithm. This class cannot be inherited. |
| RijndaelManagedTransform | Performs a cryptographic transformation of data using the Rijndael algorithm. This class cannot be inherited. |
| RIPEMD160 | Represents the abstract class from which all implementations of the MD160 hash algorithm inherit. |
| RIPEMD160Managed | Computes the RIPEMD160 hash for the input data using the managed library. |
| RNGCryptoServiceProvider | Implements a cryptographic Random Number Generator (RNG) using the implementation provided by the cryptographic service provider (CSP). This class cannot be inherited. |
| RSA | Represents the base class from which all implementations of the RSA algorithm inherit. |
| RSACryptoServiceProvider | Performs asymmetric encryption and decryption using the implementation of the RSA algorithm provided by the cryptographic service provider (CSP). This class cannot be inherited. |
| RSAOAEPKeyExchangeDeformatter | Decrypts Optimal Asymmetric Encryption Padding (OAEP) key exchange data. |
| RSAOAEPKeyExchangeFormatter | Creates Optimal Asymmetric Encryption Padding (OAEP) key exchange data using RSA. |
| RSAPKCS1KeyExchangeDeformatter | Decrypts the PKCS #1 key exchange data. |
| RSAPKCS1KeyExchangeFormatter | Creates the PKCS#1 key exchange data using RSA. |
| RSAPKCS1SignatureDeformatter | Verifies an RSA PKCS #1 version 1.5 signature. |
| RSAPKCS1SignatureFormatter | Creates an RSA PKCS #1 version 1.5 signature. |
| SHA1 | Computes the SHA1 hash for the input data. |
| SHA1Cng | Provides a Cryptography Next Generation (CNG) implementation of the Secure Hash Algorithm (SHA). |
| SHA1CryptoServiceProvider | Computes the SHA1 hash value for the input data using the implementation provided by the cryptographic service provider (CSP). This class cannot be inherited. |
| SHA1Managed | Computes the SHA1 hash for the input data using the managed library. |
| SHA256 | Computes the SHA256 hash for the input data. |
| SHA256Cng | Provides a Cryptography Next Generation (CNG) implementation of the Secure Hash Algorithm (SHA) for 256-bit hash values. |
| SHA256CryptoServiceProvider | Defines a wrapper object to access the cryptographic service provider (CSP) implementation of the SHA256 algorithm. |
| SHA256Managed | Computes the SHA256 hash for the input data using the managed library. |
| SHA384 | Computes the SHA384 hash for the input data. |
| SHA384Cng | Provides a Cryptography Next Generation (CNG) implementation of the Secure Hash Algorithm (SHA) for 384-bit hash values. |
| SHA384CryptoServiceProvider | Defines a wrapper object to access the cryptographic service provider (CSP) implementation of the SHA384 algorithm. |
| SHA384Managed | Computes the SHA384 hash for the input data using the managed library. |
| SHA512 | Computes the SHA512 hash for the input data. |
| SHA512Cng | Provides a Cryptography Next Generation (CNG) implementation of the Secure Hash Algorithm (SHA) for 512-bit hash values. |
| SHA512CryptoServiceProvider | Defines a wrapper object to access the cryptographic service provider (CSP) implementation of the SHA512 algorithm. |
| SHA512Managed | Computes the SHA512 hash algorithm for the input data using the managed library. |
| SignatureDescription | Contains information about the properties of a digital signature. |
| StrongNameSignatureInformation | Holds the strong name signature information for a manifest. |
| SymmetricAlgorithm | Represents the abstract base class from which all implementations of symmetric algorithms must inherit. |
| ToBase64Transform | Converts a CryptoStream to base 64. |
| TripleDES | Represents the base class for Triple Data Encryption Standard algorithms from which all TripleDES implementations must derive. |
| TripleDESCryptoServiceProvider | Defines a wrapper object to access the cryptographic service provider (CSP) version of the TripleDES algorithm. This class cannot be inherited. |
