The invention relates to an electronic device configured for encrypted data transfer with a smart card under a trust key. The electronic device comprises at least one secured portion, wherein the electronic device is configured for performing a key exchange algorithm with the smart card for establishing the trust key for the encrypted data transfer between the electronic device and the smart card and wherein the electronic device is configured for storing the trust key in the secured portion of the electronic device.

Device and method for establishing secure trust key

Now many television operators are providing subscribers with more and more value-added service When people use these services they will have the risk of leaking personal information, such as the watching habit, the privacy problem has become a hot topic to the public This paper proposes a scheme of CAS anonymous authentication in two-way network, and the scheme uses group signatures based on the elliptic curve It meets both efficient authentication and transaction tracking needs, and can also protect user's privacy in a certain extent

Research on Digital TV Anonymous Authentication

The invention relates to device and method for establishing secure trust key. The invention relates to an electronic device configured for encrypted data transfer with a smart card under a trust key. The device comprises at least one secured portion, wherein the device is configured for performing a key exchange algorithm with the smart card for establishing the trust key for the encrypted data transfer between the device and the smart card and wherein the device is configured for storing the trust key in the secured portion of the device.

Interactive TV is a promising technique to realize individualized services besides traditional video broadcasting, such as VOD (Video on Demand), Email on DTV (Digital TV), E-banking. Utilizing return channel (like Internet, mobile communication), many new applications can be established, which promote the value-added services of DTV. For more profound applications, security mechanisms must be deployed to protect the profits of both the content providers and subscribers. This paper presents investigations on the smart card-based secure protocol for user-STB authentication and session key establishment in DTV system. The proposed secure protocol has features of bidirectional authentication, session key secrecy, session key confirmation, forward security, and efficient interval restart, etc. Therefore, the protocol is appropriate for use on secure conditional access and can be referenced easily in future CA systems for value-added applications.

Investigations on smart card-based secure protocols for autenticated key establishment in Digital pay-TV systems

Investigations on the proof theory and methods of simultaneously provable security under multi-model helps to construct formally secure cryptographic scheme under multi-environments. Further re- search is provided on the construction of efficient IBE scheme and provable security under CCA model. Elementary investigations on pairing-based CCA secure IBE scheme which is provably secure based on RO and non-RO model were provided. It avoided the induction inefficiency in the previous proofs. Based on the standard DBDH problem, its provable security under both models is argued. The proposed scheme has low parameter and ciphertext size, which were composed of four group element respectively. The induction of security proof is more concise and tight.

/pdf/investigations-on-simultaneously-secure-ibe-scheme-and-zy4mke2s1r.pdf

Investigations on Simultaneously Secure IBE Scheme and Security Proofs under RO and Non-RO Model

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Investigations on smart card-based secure protocols for autenticated key establishment in Digital pay-TV systems

Investigations on Simultaneously Secure IBE Scheme and Security Proofs under RO and Non-RO Model