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Process for promotion of pay television broadcasts, and device f

Cryptography – Key management – Having particular key generator
Patent

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Process for protecting an information item transmitted from...

Cryptography – Cellular telephone cryptographic authentication
Reexamination Certificate

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Process for protecting components of smart or chip cards from fr

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent

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Process for scrambling and process for descrambling digital...

Cryptography – Video cryptography – Video electric signal modification
Reexamination Certificate

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Process for securing and for checking the integrity of the secur

Cryptography – Cryptanalysis
Patent

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Process for the acceptance of a virtual prepaid card use request

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent

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Process for the authentication of a data processing system by an

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent

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Process for the broadcasting and reception of access title contr

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent

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Process for the broadcasting of conditional access programs perm

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent

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Process for the broadcasting of programmes with progressive cond

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent

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Process for the control of secret keys between two smart cards

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent

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Process for the control of the use of a data processing work sta

Cryptography – Cryptanalysis
Patent

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Process for the cryptographic processing of data and cryptograph

Cryptography – Key management – Having particular key generator
Patent

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Process for the dissimulaton of a secret code in a data authenti

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent

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Process for the scrambling and descrambling of television images

Cryptography – Key management – Having particular key generator
Patent

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Process for the transmission and reception of conditional access

Cryptography – Key management – Having particular key generator
Patent

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Process for the transmission and reception of conditional access

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent

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Process for the transmission and reception of personalized progr

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent

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Process for verifying the preservation of the integrity of an un

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent

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Process of combined authentication of a telecommunication termin

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
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