Providing secure communication of encrypted information on a multi-user global communication network via an accessible network-based Software-as-a-Service (SAAS); network-based SAAS providing access-auditing and modification-auditing services for encrypted information communicated via said SAAS; SAAS for providing automated access revocation, access-expiration, deletion, and return services for encrypted information communicated via said SAAS; encryption key security and access-management services for encrypted information communicated via said SAAS; network-based SAAS for accessing user key repair services for encrypted information communicated via said SAAS; and network-based SAAS providing real-time management by a supervisor of multi-user access-rights for encrypted information communicated via said SAAS