RSA RSA RSA RSA Class

Definition

Namespace:: System.Security.Cryptography System.Security.Cryptography System.Security.Cryptography System.Security.Cryptography

Assemblies:: System.Security.Cryptography.Algorithms.dll, mscorlib.dll, netstandard.dll

Represents the base class from which all implementations of the RSA algorithm inherit.

public ref class RSA abstract : System::Security::Cryptography::AsymmetricAlgorithm

[System.Runtime.InteropServices.ComVisible(true)]
public abstract class RSA : System.Security.Cryptography.AsymmetricAlgorithm

type RSA = class
    inherit AsymmetricAlgorithm

Public MustInherit Class RSA
Inherits AsymmetricAlgorithm

Inheritance: ObjectObjectObjectObject
AsymmetricAlgorithmAsymmetricAlgorithmAsymmetricAlgorithmAsymmetricAlgorithm
RSARSARSARSA

Derived: RSACngRSACngRSACngRSACng

RSACryptoServiceProviderRSACryptoServiceProviderRSACryptoServiceProviderRSACryptoServiceProvider

RSAOpenSslRSAOpenSslRSAOpenSslRSAOpenSsl

Attributes: ComVisibleAttribute

Remarks

Extending this class proves that you are implementing an RSA key. This is required for any developer providing a new RSA key implementation.

The only purpose of this class is as a hierarchy member for identification of the RSA algorithm.

The RSACryptoServiceProvider supports key lengths from 384 bits to 16384 bits in increments of 8 bits if you have the Microsoft Enhanced Cryptographic Provider installed. It supports key lengths from 384 bits to 512 bits in increments of 8 bits if you have the Microsoft Base Cryptographic Provider installed.

Constructors

RSA() RSA() RSA() RSA()

Initializes a new instance of the RSA class.

Properties

KeyExchangeAlgorithm KeyExchangeAlgorithm KeyExchangeAlgorithm KeyExchangeAlgorithm	Gets the name of the key exchange algorithm available with this implementation of RSA.
KeySize KeySize KeySize KeySize	Gets or sets the size, in bits, of the key modulus used by the asymmetric algorithm. (Inherited from AsymmetricAlgorithm)
LegalKeySizes LegalKeySizes LegalKeySizes LegalKeySizes	Gets the key sizes that are supported by the asymmetric algorithm. (Inherited from AsymmetricAlgorithm)
SignatureAlgorithm SignatureAlgorithm SignatureAlgorithm SignatureAlgorithm	Gets the name of the signature algorithm available with this implementation of RSA.

Methods

Clear() Clear() Clear() Clear()	Releases all resources used by the AsymmetricAlgorithm class. (Inherited from AsymmetricAlgorithm)
Create() Create() Create() Create()	Creates an instance of the default implementation of the RSA algorithm.
Create(Int32) Create(Int32) Create(Int32) Create(Int32)	Creates a new ephemeral RSA key with the specified key size.
Create(RSAParameters) Create(RSAParameters) Create(RSAParameters) Create(RSAParameters)	Creates a new ephemeral RSA key with the specified RSA key parameters.
Create(String) Create(String) Create(String) Create(String)	Creates an instance of the specified implementation of RSA.
Decrypt(Byte[], RSAEncryptionPadding) Decrypt(Byte[], RSAEncryptionPadding) Decrypt(Byte[], RSAEncryptionPadding) Decrypt(Byte[], RSAEncryptionPadding)	When overridden in a derived class, decrypts the input data using the specified padding mode.
DecryptValue(Byte[]) DecryptValue(Byte[]) DecryptValue(Byte[]) DecryptValue(Byte[])	When overridden in a derived class, decrypts the input data using the private key.
Dispose() Dispose() Dispose() Dispose()	Releases all resources used by the current instance of the AsymmetricAlgorithm class. (Inherited from AsymmetricAlgorithm)
Dispose(Boolean) Dispose(Boolean) Dispose(Boolean) Dispose(Boolean)	Releases the unmanaged resources used by the AsymmetricAlgorithm class and optionally releases the managed resources. (Inherited from AsymmetricAlgorithm)
Encrypt(Byte[], RSAEncryptionPadding) Encrypt(Byte[], RSAEncryptionPadding) Encrypt(Byte[], RSAEncryptionPadding) Encrypt(Byte[], RSAEncryptionPadding)	When overridden in a derived class, encrypts the input data using the specified padding mode.
EncryptValue(Byte[]) EncryptValue(Byte[]) EncryptValue(Byte[]) EncryptValue(Byte[])	When overridden in a derived class, encrypts the input data using the public key.
Equals(Object) Equals(Object) Equals(Object) Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
ExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, PbeParameters) ExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, PbeParameters) ExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, PbeParameters) ExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, PbeParameters)	Inherited from AsymmetricAlgorithm
ExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, PbeParameters) ExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, PbeParameters) ExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, PbeParameters) ExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, PbeParameters)	Inherited from AsymmetricAlgorithm
ExportParameters(Boolean) ExportParameters(Boolean) ExportParameters(Boolean) ExportParameters(Boolean)	When overridden in a derived class, exports the RSAParameters.
ExportPkcs8PrivateKey() ExportPkcs8PrivateKey() ExportPkcs8PrivateKey() ExportPkcs8PrivateKey()	Inherited from AsymmetricAlgorithm
ExportRSAPrivateKey() ExportRSAPrivateKey() ExportRSAPrivateKey() ExportRSAPrivateKey()
ExportRSAPublicKey() ExportRSAPublicKey() ExportRSAPublicKey() ExportRSAPublicKey()
ExportSubjectPublicKeyInfo() ExportSubjectPublicKeyInfo() ExportSubjectPublicKeyInfo() ExportSubjectPublicKeyInfo()	Inherited from AsymmetricAlgorithm
FromXmlString(String) FromXmlString(String) FromXmlString(String) FromXmlString(String)	Initializes an RSA object from the key information from an XML string.
GetHashCode() GetHashCode() GetHashCode() GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetType() GetType() GetType() GetType()	Gets the Type of the current instance. (Inherited from Object)
HashData(Byte[], Int32, Int32, HashAlgorithmName) HashData(Byte[], Int32, Int32, HashAlgorithmName) HashData(Byte[], Int32, Int32, HashAlgorithmName) HashData(Byte[], Int32, Int32, HashAlgorithmName)	When overridden in a derived class, computes the hash value of a specified portion of a byte array by using a specified hashing algorithm.
HashData(Stream, HashAlgorithmName) HashData(Stream, HashAlgorithmName) HashData(Stream, HashAlgorithmName) HashData(Stream, HashAlgorithmName)	When overridden in a derived class, computes the hash value of a specified binary stream by using a specified hashing algorithm.
ImportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, ReadOnlySpan<Byte>, Int32) ImportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, ReadOnlySpan<Byte>, Int32) ImportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, ReadOnlySpan<Byte>, Int32) ImportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, ReadOnlySpan<Byte>, Int32)	Inherited from AsymmetricAlgorithm
ImportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, ReadOnlySpan<Byte>, Int32) ImportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, ReadOnlySpan<Byte>, Int32) ImportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, ReadOnlySpan<Byte>, Int32) ImportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, ReadOnlySpan<Byte>, Int32)	Inherited from AsymmetricAlgorithm
ImportParameters(RSAParameters) ImportParameters(RSAParameters) ImportParameters(RSAParameters) ImportParameters(RSAParameters)	When overridden in a derived class, imports the specified RSAParameters.
ImportPkcs8PrivateKey(ReadOnlySpan<Byte>, Int32) ImportPkcs8PrivateKey(ReadOnlySpan<Byte>, Int32) ImportPkcs8PrivateKey(ReadOnlySpan<Byte>, Int32) ImportPkcs8PrivateKey(ReadOnlySpan<Byte>, Int32)	Inherited from AsymmetricAlgorithm
ImportRSAPrivateKey(ReadOnlySpan<Byte>, Int32) ImportRSAPrivateKey(ReadOnlySpan<Byte>, Int32) ImportRSAPrivateKey(ReadOnlySpan<Byte>, Int32) ImportRSAPrivateKey(ReadOnlySpan<Byte>, Int32)
ImportRSAPublicKey(ReadOnlySpan<Byte>, Int32) ImportRSAPublicKey(ReadOnlySpan<Byte>, Int32) ImportRSAPublicKey(ReadOnlySpan<Byte>, Int32) ImportRSAPublicKey(ReadOnlySpan<Byte>, Int32)
ImportSubjectPublicKeyInfo(ReadOnlySpan<Byte>, Int32) ImportSubjectPublicKeyInfo(ReadOnlySpan<Byte>, Int32) ImportSubjectPublicKeyInfo(ReadOnlySpan<Byte>, Int32) ImportSubjectPublicKeyInfo(ReadOnlySpan<Byte>, Int32)	Inherited from AsymmetricAlgorithm
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
SignData(Byte[], HashAlgorithmName, RSASignaturePadding) SignData(Byte[], HashAlgorithmName, RSASignaturePadding) SignData(Byte[], HashAlgorithmName, RSASignaturePadding) SignData(Byte[], HashAlgorithmName, RSASignaturePadding)	Computes the hash value of the specified byte array using the specified hash algorithm and padding mode, and signs the resulting hash value.
SignData(Byte[], Int32, Int32, HashAlgorithmName, RSASignaturePadding) SignData(Byte[], Int32, Int32, HashAlgorithmName, RSASignaturePadding) SignData(Byte[], Int32, Int32, HashAlgorithmName, RSASignaturePadding) SignData(Byte[], Int32, Int32, HashAlgorithmName, RSASignaturePadding)	Computes the hash value of a portion of the specified byte array using the specified hash algorithm and padding mode, and signs the resulting hash value.
SignData(Stream, HashAlgorithmName, RSASignaturePadding) SignData(Stream, HashAlgorithmName, RSASignaturePadding) SignData(Stream, HashAlgorithmName, RSASignaturePadding) SignData(Stream, HashAlgorithmName, RSASignaturePadding)	Computes the hash value of the specified stream using the specified hash algorithm and padding mode, and signs the resulting hash value.
SignHash(Byte[], HashAlgorithmName, RSASignaturePadding) SignHash(Byte[], HashAlgorithmName, RSASignaturePadding) SignHash(Byte[], HashAlgorithmName, RSASignaturePadding) SignHash(Byte[], HashAlgorithmName, RSASignaturePadding)	When overridden in a derived class, computes the signature for the specified hash value by encrypting it with the private key using the specified padding.
ToString() ToString() ToString() ToString()	Returns a string that represents the current object. (Inherited from Object)
ToXmlString(Boolean) ToXmlString(Boolean) ToXmlString(Boolean) ToXmlString(Boolean)	Creates and returns an XML string containing the key of the current RSA object.
TryDecrypt(ReadOnlySpan<Byte>, Span<Byte>, RSAEncryptionPadding, Int32) TryDecrypt(ReadOnlySpan<Byte>, Span<Byte>, RSAEncryptionPadding, Int32) TryDecrypt(ReadOnlySpan<Byte>, Span<Byte>, RSAEncryptionPadding, Int32) TryDecrypt(ReadOnlySpan<Byte>, Span<Byte>, RSAEncryptionPadding, Int32)
TryEncrypt(ReadOnlySpan<Byte>, Span<Byte>, RSAEncryptionPadding, Int32) TryEncrypt(ReadOnlySpan<Byte>, Span<Byte>, RSAEncryptionPadding, Int32) TryEncrypt(ReadOnlySpan<Byte>, Span<Byte>, RSAEncryptionPadding, Int32) TryEncrypt(ReadOnlySpan<Byte>, Span<Byte>, RSAEncryptionPadding, Int32)
TryExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, PbeParameters, Span<Byte>, Int32) TryExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, PbeParameters, Span<Byte>, Int32) TryExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, PbeParameters, Span<Byte>, Int32) TryExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, PbeParameters, Span<Byte>, Int32)	Inherited from AsymmetricAlgorithm
TryExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, PbeParameters, Span<Byte>, Int32) TryExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, PbeParameters, Span<Byte>, Int32) TryExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, PbeParameters, Span<Byte>, Int32) TryExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, PbeParameters, Span<Byte>, Int32)	Inherited from AsymmetricAlgorithm
TryExportPkcs8PrivateKey(Span<Byte>, Int32) TryExportPkcs8PrivateKey(Span<Byte>, Int32) TryExportPkcs8PrivateKey(Span<Byte>, Int32) TryExportPkcs8PrivateKey(Span<Byte>, Int32)	Inherited from AsymmetricAlgorithm
TryExportRSAPrivateKey(Span<Byte>, Int32) TryExportRSAPrivateKey(Span<Byte>, Int32) TryExportRSAPrivateKey(Span<Byte>, Int32) TryExportRSAPrivateKey(Span<Byte>, Int32)
TryExportRSAPublicKey(Span<Byte>, Int32) TryExportRSAPublicKey(Span<Byte>, Int32) TryExportRSAPublicKey(Span<Byte>, Int32) TryExportRSAPublicKey(Span<Byte>, Int32)
TryExportSubjectPublicKeyInfo(Span<Byte>, Int32) TryExportSubjectPublicKeyInfo(Span<Byte>, Int32) TryExportSubjectPublicKeyInfo(Span<Byte>, Int32) TryExportSubjectPublicKeyInfo(Span<Byte>, Int32)	Inherited from AsymmetricAlgorithm
TryHashData(ReadOnlySpan<Byte>, Span<Byte>, HashAlgorithmName, Int32) TryHashData(ReadOnlySpan<Byte>, Span<Byte>, HashAlgorithmName, Int32) TryHashData(ReadOnlySpan<Byte>, Span<Byte>, HashAlgorithmName, Int32) TryHashData(ReadOnlySpan<Byte>, Span<Byte>, HashAlgorithmName, Int32)
TrySignData(ReadOnlySpan<Byte>, Span<Byte>, HashAlgorithmName, RSASignaturePadding, Int32) TrySignData(ReadOnlySpan<Byte>, Span<Byte>, HashAlgorithmName, RSASignaturePadding, Int32) TrySignData(ReadOnlySpan<Byte>, Span<Byte>, HashAlgorithmName, RSASignaturePadding, Int32) TrySignData(ReadOnlySpan<Byte>, Span<Byte>, HashAlgorithmName, RSASignaturePadding, Int32)
TrySignHash(ReadOnlySpan<Byte>, Span<Byte>, HashAlgorithmName, RSASignaturePadding, Int32) TrySignHash(ReadOnlySpan<Byte>, Span<Byte>, HashAlgorithmName, RSASignaturePadding, Int32) TrySignHash(ReadOnlySpan<Byte>, Span<Byte>, HashAlgorithmName, RSASignaturePadding, Int32) TrySignHash(ReadOnlySpan<Byte>, Span<Byte>, HashAlgorithmName, RSASignaturePadding, Int32)
VerifyData(Byte[], Byte[], HashAlgorithmName, RSASignaturePadding) VerifyData(Byte[], Byte[], HashAlgorithmName, RSASignaturePadding) VerifyData(Byte[], Byte[], HashAlgorithmName, RSASignaturePadding) VerifyData(Byte[], Byte[], HashAlgorithmName, RSASignaturePadding)	Verifies that a digital signature is valid by calculating the hash value of the specified data using the specified hash algorithm and padding, and comparing it to the provided signature.
VerifyData(Byte[], Int32, Int32, Byte[], HashAlgorithmName, RSASignaturePadding) VerifyData(Byte[], Int32, Int32, Byte[], HashAlgorithmName, RSASignaturePadding) VerifyData(Byte[], Int32, Int32, Byte[], HashAlgorithmName, RSASignaturePadding) VerifyData(Byte[], Int32, Int32, Byte[], HashAlgorithmName, RSASignaturePadding)	Verifies that a digital signature is valid by calculating the hash value of the data in a portion of a byte array using the specified hash algorithm and padding, and comparing it to the provided signature.
VerifyData(ReadOnlySpan<Byte>, ReadOnlySpan<Byte>, HashAlgorithmName, RSASignaturePadding) VerifyData(ReadOnlySpan<Byte>, ReadOnlySpan<Byte>, HashAlgorithmName, RSASignaturePadding) VerifyData(ReadOnlySpan<Byte>, ReadOnlySpan<Byte>, HashAlgorithmName, RSASignaturePadding) VerifyData(ReadOnlySpan<Byte>, ReadOnlySpan<Byte>, HashAlgorithmName, RSASignaturePadding)
VerifyData(Stream, Byte[], HashAlgorithmName, RSASignaturePadding) VerifyData(Stream, Byte[], HashAlgorithmName, RSASignaturePadding) VerifyData(Stream, Byte[], HashAlgorithmName, RSASignaturePadding) VerifyData(Stream, Byte[], HashAlgorithmName, RSASignaturePadding)	Verifies that a digital signature is valid by calculating the hash value of the specified stream using the specified hash algorithm and padding, and comparing it to the provided signature.
VerifyHash(Byte[], Byte[], HashAlgorithmName, RSASignaturePadding) VerifyHash(Byte[], Byte[], HashAlgorithmName, RSASignaturePadding) VerifyHash(Byte[], Byte[], HashAlgorithmName, RSASignaturePadding) VerifyHash(Byte[], Byte[], HashAlgorithmName, RSASignaturePadding)	Verifies that a digital signature is valid by determining the hash value in the signature using the specified hash algorithm and padding, and comparing it to the provided hash value.
VerifyHash(ReadOnlySpan<Byte>, ReadOnlySpan<Byte>, HashAlgorithmName, RSASignaturePadding) VerifyHash(ReadOnlySpan<Byte>, ReadOnlySpan<Byte>, HashAlgorithmName, RSASignaturePadding) VerifyHash(ReadOnlySpan<Byte>, ReadOnlySpan<Byte>, HashAlgorithmName, RSASignaturePadding) VerifyHash(ReadOnlySpan<Byte>, ReadOnlySpan<Byte>, HashAlgorithmName, RSASignaturePadding)

Fields

KeySizeValue KeySizeValue KeySizeValue KeySizeValue	Represents the size, in bits, of the key modulus used by the asymmetric algorithm. (Inherited from AsymmetricAlgorithm)
LegalKeySizesValue LegalKeySizesValue LegalKeySizesValue LegalKeySizesValue	Specifies the key sizes that are supported by the asymmetric algorithm. (Inherited from AsymmetricAlgorithm)

Explicit Interface Implementations

IDisposable.Dispose() IDisposable.Dispose() IDisposable.Dispose() IDisposable.Dispose()

For a description of this member, see Dispose().

(Inherited from AsymmetricAlgorithm)