how to use public key n private key for login authentication

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C++

MFC

Hi,

I am working on authentication of Login using public key and private key using C++/MFC.

I am new to generation of public key n private key. How to create these keys and how

to use these keys for login authentication. As it is a Login, need to create a pair of

public key and private key for each user and encrypt the password and decrypt the

password at later stages. Can one help me to how generate the key pairs and how to use

them. I am very thankful to him.