ECDiffieHellmanOpenSsl Class

Definition

Provides an implementation of the Elliptic Curve Diffie-Hellman (ECDH) algorithm backed by OpenSSL.

public ref class ECDiffieHellmanOpenSsl sealed : System::Security::Cryptography::ECDiffieHellman
public sealed class ECDiffieHellmanOpenSsl : System.Security.Cryptography.ECDiffieHellman
type ECDiffieHellmanOpenSsl = class
    inherit ECDiffieHellman
Public NotInheritable Class ECDiffieHellmanOpenSsl
Inherits ECDiffieHellman
Inheritance
ECDiffieHellmanOpenSsl

Remarks

This class should only be used directly when doing platform interop with the system OpenSSL library. When platform interop is not needed, you should use the ECDiffieHellman.Create factory methods instead of a specific derived implementation.

Constructors

ECDiffieHellmanOpenSsl()

Initializes a new instance of the ECDiffieHellmanOpenSsl class with a default curve of NIST P-521/secp521r1.

ECDiffieHellmanOpenSsl(ECCurve)

Initializes a new instance of the ECDiffieHellmanOpenSsl class and generates a new key on the specified curve.

ECDiffieHellmanOpenSsl(Int32)

Initializes a new instance of the ECDiffieHellmanOpenSsl class defaulting to the NIST prime curve of the specified size.

ECDiffieHellmanOpenSsl(IntPtr)

Initializes a new instance of the ECDiffieHellmanOpenSsl class from an existing OpenSSL key represented as an EC_KEY*.

ECDiffieHellmanOpenSsl(SafeEvpPKeyHandle)

Initializes a new instance of the ECDiffieHellmanOpenSsl class from an existing OpenSSL key represented as an EVP_PKEY*.

Fields

KeySizeValue

Represents the size, in bits, of the key modulus used by the asymmetric algorithm.

(Inherited from AsymmetricAlgorithm)
LegalKeySizesValue

Specifies the key sizes that are supported by the asymmetric algorithm.

(Inherited from AsymmetricAlgorithm)

Properties

KeyExchangeAlgorithm

Gets the name of the key exchange algorithm.

(Inherited from ECDiffieHellman)
KeySize

Gets or sets the size, in bits, of the key modulus used by the asymmetric algorithm.

(Inherited from AsymmetricAlgorithm)
LegalKeySizes

Gets the key sizes that are supported by the asymmetric algorithm.

(Inherited from AsymmetricAlgorithm)
PublicKey

Gets the public key that can be used by another ECDiffieHellman object to generate a shared secret agreement.

SignatureAlgorithm

Gets the name of the signature algorithm.

(Inherited from ECDiffieHellman)

Methods

Clear()

Releases all resources used by the AsymmetricAlgorithm class.

(Inherited from AsymmetricAlgorithm)
DeriveKeyFromHash(ECDiffieHellmanPublicKey, HashAlgorithmName)

Performs key derivation using a specified hash algorithm.

(Inherited from ECDiffieHellman)
DeriveKeyFromHash(ECDiffieHellmanPublicKey, HashAlgorithmName, Byte[], Byte[])

Performs key derivation using a specified hash algorithm with optional prepended or appended data.

DeriveKeyFromHmac(ECDiffieHellmanPublicKey, HashAlgorithmName, Byte[])

Performs key derivation using a specified HMAC (Hash-based Message Authentication Code) algorithm.

(Inherited from ECDiffieHellman)
DeriveKeyFromHmac(ECDiffieHellmanPublicKey, HashAlgorithmName, Byte[], Byte[], Byte[])

Performs key derivation using a specified HMAC (Hash-based Message Authentication Code) algorithm with optional prepended or appended data.

DeriveKeyMaterial(ECDiffieHellmanPublicKey)

Performs a key derivation on the shared secret.

DeriveKeyTls(ECDiffieHellmanPublicKey, Byte[], Byte[])

Performs key derivation using the TLS (Transport Layer Security) 1.1 PRF (Pseudo-Random Function).

Dispose()

Releases all resources used by the current instance of the AsymmetricAlgorithm class.

(Inherited from AsymmetricAlgorithm)
Dispose(Boolean)

Releases the unmanaged resources used by the AsymmetricAlgorithm class and optionally releases the managed resources.

(Inherited from AsymmetricAlgorithm)
DuplicateKeyHandle()

Gets a SafeEvpPKeyHandle representation of the cryptographic key.

Equals(Object)

Determines whether the specified object is equal to the current object.

(Inherited from Object)
ExportECPrivateKey()

Exports the current key in the ECPrivateKey format.

(Inherited from ECDiffieHellman)
ExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, PbeParameters)

Exports the current key in the PKCS#8 EncryptedPrivateKeyInfo format with a byte-based password.

(Inherited from AsymmetricAlgorithm)
ExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, PbeParameters)

Exports the current key in the PKCS#8 EncryptedPrivateKeyInfo format with a char-based password.

(Inherited from AsymmetricAlgorithm)
ExportExplicitParameters(Boolean)

Exports either the public or the public and private key information using the explicit curve form from the current key to an ECParameters structure so that it can be passed to the ImportParameters(ECParameters) method.

ExportParameters(Boolean)

Exports the key used by the ECCurve object into an ECParameters object.

ExportPkcs8PrivateKey()

Exports the current key in the PKCS#8 PrivateKeyInfo format.

(Inherited from AsymmetricAlgorithm)
ExportSubjectPublicKeyInfo()

Exports the public-key portion of the current key in the X.509 SubjectPublicKeyInfo format.

(Inherited from AsymmetricAlgorithm)
FromXmlString(String)

This method throws in all cases.

(Inherited from ECDiffieHellman)
GenerateKey(ECCurve)

Generates a new ephemeral public/private key pair for the specified curve.

GetHashCode()

Serves as the default hash function.

(Inherited from Object)
GetType()

Gets the Type of the current instance.

(Inherited from Object)
ImportECPrivateKey(ReadOnlySpan<Byte>, Int32)

Imports the public/private keypair from an ECPrivateKey structure, replacing the keys for this object.

(Inherited from ECDiffieHellman)
ImportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, ReadOnlySpan<Byte>, Int32)

Imports the public/private keypair from a PKCS#8 EncryptedPrivateKeyInfo structure after decrypting with a byte-based password, replacing the keys for this object.

(Inherited from ECDiffieHellman)
ImportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, ReadOnlySpan<Byte>, Int32)

Imports the public/private keypair from a PKCS#8 EncryptedPrivateKeyInfo structure after decrypting with a char-based password, replacing the keys for this object.

(Inherited from ECDiffieHellman)
ImportParameters(ECParameters)

Imports the specified parameters for an ECCurve object as a key into the current instance.

ImportPkcs8PrivateKey(ReadOnlySpan<Byte>, Int32)

Imports the public/private keypair from a PKCS#8 PrivateKeyInfo structure after decryption, replacing the keys for this object.

(Inherited from ECDiffieHellman)
ImportSubjectPublicKeyInfo(ReadOnlySpan<Byte>, Int32)

Imports the public key from an X.509 SubjectPublicKeyInfo structure after decryption, replacing the keys for this object.

(Inherited from ECDiffieHellman)
MemberwiseClone()

Creates a shallow copy of the current Object.

(Inherited from Object)
ToString()

Returns a string that represents the current object.

(Inherited from Object)
ToXmlString(Boolean)

This method throws in all cases.

(Inherited from ECDiffieHellman)
TryExportECPrivateKey(Span<Byte>, Int32)

Attempts to export the current key in the ECPrivateKey format into a provided buffer.

(Inherited from ECDiffieHellman)
TryExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, PbeParameters, Span<Byte>, Int32)

Attempts to export the current key in the PKCS#8 EncryptedPrivateKeyInfo format into a provided buffer, using a byte-based password.

(Inherited from ECDiffieHellman)
TryExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, PbeParameters, Span<Byte>, Int32)

Attempts to export the current key in the PKCS#8 EncryptedPrivateKeyInfo format into a provided buffer, using a char-based password.

(Inherited from ECDiffieHellman)
TryExportPkcs8PrivateKey(Span<Byte>, Int32)

Attempts to export the current key in the PKCS#8 PrivateKeyInfo format into a provided buffer.

(Inherited from ECDiffieHellman)
TryExportSubjectPublicKeyInfo(Span<Byte>, Int32)

Attempts to export the current key in the X.509 SubjectPublicKeyInfo format into a provided buffer.

(Inherited from ECDiffieHellman)

Explicit Interface Implementations

IDisposable.Dispose()

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

(Inherited from AsymmetricAlgorithm)

Applies to