Matthieu Turpault wrote: >
I am likely to work with big companies
Does that mean you are currently working with big companies?
Among the choice which is suggested, the only free solution is openldap. However, it is not (still) the one which is chosen. One of the main reason is its level of security which is not high enough. To satisfy their requirements of security, it would be necessary to add the following features:
Is this list of required features really your customer's demand?
Ciao, Michael.