How Do I Authenticate User In Ldap/Active Directory With Hash Password?

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C#

LDAP

active-directory

My code for authentication with clear text is as below. How do i authenticate user with hash password?

PrincipalContext adContext = new PrincipalContext(ContextType.Domain);

UserPrincipal user = UserPrincipal.FindByIdentity(adContext, Username);
using (adContext)
{
bool IsValid = adContext.ValidateCredentials(Username, Password);
return IsValid ;

}