Abstract: It is provided a method, including checking if an indication is received that a certificate installed in a communication entity is to be revoked at a revocation time in the future; preparing, if the indication is received, a first revocation list, wherein the first revocation list includes an identifier of the certificate and the revocation time; providing the first revocation list to the communication entity.

Abstract: The present invention provides apparatuses, methods, computer programs, computer program products and computer-readable media regarding handling of certificates for embedded Universal Integrated Circuit Cards. The present invention comprises composing, by a management entity, such as a subscription manager, a deletion command message for deleting certificates from an embedded universal integrated circuit card, eUICC, on which a plurality of certificates is pre-installed, the deletion command message including information on certificates to be deleted and an authorization of the management entity, and transmitting the deletion command message to the eUICC.

Abstract: It is provided a method, including checking if an indication is received that a certificate installed in a communication entity is to be revoked at a revocation time in the future; preparing, if the indication is received, a first revocation list, wherein the first revocation list includes an identifier of the certificate and the revocation time; providing the first revocation list to the communication entity.

Abstract: The present invention provides apparatuses, methods, computer programs, computer program products and computer-readable media regarding handling of certificates for embedded Universal Integrated Circuit Cards. The present invention comprises composing, by a management entity, such as a subscription manager, a deletion command message for deleting certificates from an embedded universal integrated circuit card, eUICC, on which a plurality of certificates is pre-installed, the deletion command message including information on certificates to be deleted and an authorization of the management entity, and transmitting the deletion command message to the eUICC.

Abstract: There are provided measures for trust anchor update in a public key infrastructure. Such measures exemplarily comprise, for managing, in a network utilizing authentication based on certificates for secure connections between end entities, an update from an old trusted anchor certificate to a new trusted anchor certificate, wherein each of said trusted anchor certificates is a root point of a chain of certificates, providing, for a pre-migration period, said old trusted anchor certificate as valid, providing, for a migration period, said old trusted anchor certificate and said new trusted anchor certificate, coincidentally, as valid, and providing, for a post-migration period, said new trusted anchor certificate as valid.