Method for providing e-Commerce secure transactions through a computer network comprising the steps of generating an encrypted digital object certificate for an object; generating an encrypted digital seller certificate for a seller of said object; assigning an active or a suspended or a revoked status to said object certificate according to first predetermined criteria; assigning an active or a suspended or a revoked status to said seller certificate according to second predetermined criteria. The method further comprises the steps of generating an encrypted digital sale certificate by means of aggregating elements comprising said object certificate and said seller certificate; assigning by said online sales certified actors authority a revoked status to said sale certificate if the status of said seller certificate and of said object certificate are not both active and an active status otherwise; publishing said sale certificate and/or its status in said online shop. Thanks to the invention, sale certificat
