CENTRALISED CRYPTOGRAPHIC SYSTEM AND METHOD WITH HIGH CRYPTOGRAPHIC RATE

摘要

In a service system distributed as, for example, pay-television, the information exchanged between the operating centre and the user modules uses cryptograph ic means to guarantee the authenticity and confidentiality of the data. The cod e processing needs of the operating centre are substantial. For this reason a cryptographic system is proposed that has modularity and security for the cryptographic operations by means of monolithic security units in the form o f smart cards.