Authorization using ciphertext tokens

H - Electricity – 04 – N

Patent

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Details

H04N 5/913 (2006.01) G06F 1/00 (2006.01) H04N 5/00 (2006.01) H04N 7/167 (2006.01) H04N 7/173 (2006.01) H04N 7/24 (2006.01) H04N 7/16 (2006.01)

Patent

CA 2377679

According to the invention, a method for securing a plaintext object within a content receiver is disclosed. In one step, a secure portion of a secure object and a plaintext remainder of the secure object are received. Which portion of the secure object is the secure portion is determined. The secure portion is decrypted to provide a plaintext portion. The plaintext object that comprises the plaintext portion and the plaintext remainder is formed. The plaintext object is stored.

Cette invention concerne un procédé permettant de sécuriser un objet de texte en clair dans un récepteur de contenus. Au cours d'une opération, une partie sécurisée d'un objet sécurisé et le restant en texte clair sont reçus. On détermine quelle partie de l'objet sécurisé est effectivement la partie sécurisée. Après décryptage, cette partie sécurisée donne la partie en texte clair. Est ainsi formé l'objet en texte clair constitué par la partie texte clair et le restant en texte clair. L'objet en texte clair est stocké.

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