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ECDiffieHellman::DeriveKeyFromHmac Method (ECDiffieHellmanPublicKey^, HashAlgorithmName, array<Byte>^, array<Byte>^, array<Byte>^)
When implemented in a derived class, derives bytes that can be used as a key using a Hash-based Message Authentication Code (HMAC).
Assembly: System.Core (in System.Core.dll)
public: virtual array<unsigned char>^ DeriveKeyFromHmac( ECDiffieHellmanPublicKey^ otherPartyPublicKey, HashAlgorithmName hashAlgorithm, array<unsigned char>^ hmacKey, 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.
- hmacKey
-
Type:
array<System::Byte>^
The key for the HMAC.
- 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
Available since 4.6.2
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