US 2014/0095879 A1 · STORING A KEY IN A REMOTE SECURITY MODULE

Abstract

A system obtains assurance by a content provider that a content control key is securely stored in a remote security module for further secure communications between the content provider and the security module. A security module manufacturer, which has a pre-established trustful relation with the security module, imports a symmetric transport key into the security module. The symmetric transport key is unique to the security module. The content provider shares the symmetric transport key with the security module manufacturer. The content provider exchanging messages with the security module through a security module communication manager in order to get the proof that the security module stores the content control key. At least a portion of the messages exchanged between the content provider and the security module are protected using the symmetric transport key. The symmetric transport key is independent of said content control key.

Claims14

Dependent claims

A method for obtaining assurance by a content provider that a content control key is securely stored in a remote security module for further secure communications between said content provider and said security module, the method comprising:

a security module manufacturer, which has a pre-established trustful relation with said security module, importing a symmetric transport key into said security module, wherein said symmetric transport key is unique to said security module;
said content provider sharing said symmetric transport key with said security module manufacturer;
and
said content provider exchanging messages with said security module through a security module communication manager in order to get the proof that said security module stores said content control key;
wherein at least a portion of said messages exchanged between said content provider and said security module are protected using said symmetric transport key.

2 more elements

A system for obtaining assurance by a content provider that a content control key is securely stored in a remote security module for further secure communications between said content provider and said security module, the system comprising:

said content provider;
said security module;
a security module communication manager;
and
a security module manufacturer, which has a pre-established trustful relation with said security module and an interface for importing a symmetric transport key into said security module, wherein said symmetric transport key is unique to said security module, said security module manufacturer sharing said symmetric transport key with said content provider;
wherein:
said content provider and said security module are functionally connected for exchanging messages through a security module communication manager in order to get the proof that said security module stores said content control key;
and
said content provider and said security module are designed for protecting at least a portion of said messages exchanged between said content provider and said security module using said symmetric transport key.

6 more elements

Dependencies are inferred from the claim text.

Storing a key in a remote security module

Life of this patent

Storing a key in a remote security module

Life of this patent

Abstract

Claims14