ECDiffieHellman.DeriveKeyMaterial(ECDiffieHellmanPublicKey) Method

Reference

Definition

Namespace:: System.Security.Cryptography

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

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

Assembly:: System.Security.Cryptography.Algorithms.dll

Assembly:: System.Core.dll

Assembly:: netstandard.dll

Source:: ECDiffieHellman.cs

Source:: ECDiffieHellman.cs

Source:: ECDiffieHellman.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

When implemented in a derived class, performs a key derivation on the shared secret.

public:
 virtual cli::array <System::Byte> ^ DeriveKeyMaterial(System::Security::Cryptography::ECDiffieHellmanPublicKey ^ otherPartyPublicKey);

public:
 abstract cli::array <System::Byte> ^ DeriveKeyMaterial(System::Security::Cryptography::ECDiffieHellmanPublicKey ^ otherPartyPublicKey);

public virtual byte[] DeriveKeyMaterial(System.Security.Cryptography.ECDiffieHellmanPublicKey otherPartyPublicKey);

public abstract byte[] DeriveKeyMaterial(System.Security.Cryptography.ECDiffieHellmanPublicKey otherPartyPublicKey);

abstract member DeriveKeyMaterial : System.Security.Cryptography.ECDiffieHellmanPublicKey -> byte[]
override this.DeriveKeyMaterial : System.Security.Cryptography.ECDiffieHellmanPublicKey -> byte[]

abstract member DeriveKeyMaterial : System.Security.Cryptography.ECDiffieHellmanPublicKey -> byte[]

Public Overridable Function DeriveKeyMaterial (otherPartyPublicKey As ECDiffieHellmanPublicKey) As Byte()

Public MustOverride Function DeriveKeyMaterial (otherPartyPublicKey As ECDiffieHellmanPublicKey) As Byte()

Parameters

otherPartyPublicKey: ECDiffieHellmanPublicKey

The other party's public key.

Returns

Byte[]

The result of the key derivation function, using the shared secret as an input.

Exceptions

ArgumentException

The curve used by otherPartyPublicKey has a different size than the curve from this key.

ArgumentNullException

otherPartyPublicKey is null.

CryptographicException

The curve used by otherPartyPublicKey is different than the curve from this key.

-or-

This instance represents only a public key.

Remarks

The default behavior of this method is equivalent to calling DeriveKeyFromHash specifying SHA-256 as the hash algorithm with no prepend or append values. Some implementations allow the behavior of this method to be changed, and callers are advised to call whichever method explicitly says it performs the key derivation they need.

Applies to

Produkt	Verzie
.NET	Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	2.1

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