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ECDiffieHellman::DeriveKeyFromHash Method (ECDiffieHellmanPublicKey^, HashAlgorithmName, array<Byte>^, array<Byte>^)

 

When implemented in a derived class, derives bytes that can be used as a key using a hash function, given another party's public key, hash algorithm's name, a prepend value and an append value.

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

public:
virtual array<unsigned char>^ DeriveKeyFromHash(
	ECDiffieHellmanPublicKey^ otherPartyPublicKey,
	HashAlgorithmName hashAlgorithm,
	array<unsigned char>^ secretPrepend,
	array<unsigned char>^ secretAppend
)

Parameters

otherPartyPublicKey
Type: System.Security.Cryptography::ECDiffieHellmanPublicKey^

The other party's public key.

hashAlgorithm
Type: System.Security.Cryptography::HashAlgorithmName

The hash algorithm to use to derive the key material.

secretPrepend
Type: array<System::Byte>^

A value to prepend to the derived secret before hashing.

secretAppend
Type: array<System::Byte>^

A value to append to the derived secret before hashing.

Return Value

Type: array<System::Byte>^

The key material from the key exchange with the other party’s public key.

Exception Condition
NotImplementedException

A derived class must override this method.

.NET Framework
Available since 4.6.2
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