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1. WO2007001462 - METHOD AND APPARATUS FOR PROVIDING A SECURE MOVE OF A DECRYPTION CONTENT KEY

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

Claims:
1 A method for providing a secure move of a decryption key, comprising encrypting the decryption key in a first domain,
sending said encrypted decryption key to a second domain,
receiving a confirmation message from said second domain confirming receipt of said encrypted decryption key,
deleting the decryption key in said first domain, and
sending an acknowledgement message to said second domain, where said acknowledgement message indicates the decryption key has been deleted in said first domain

2 The method of claim 1 , wherein said encrypted decryption key is sent to said second domain with an integrity check

3 The method of claim 1 , wherein said confirmation message is received from said second domain with an integrity check

4 The method of claim 1 , wherein said encrypting comprises encrypting the decryption key with a session key established between said first domain and said second domain

5 The method of claim 1 , wherein said encrypting comprises encrypting the decryption key with a public key of said second domain

6 The method of claim 1 , wherein said encrypted decryption key is sent to said second domain with an integrity check in accordance with a digital signature
7 A computer-readable carrier having stored thereon a plurality of instructions, the plurality of instructions including instructions which, when executed by a processor, cause the processor 390 to perform the steps of a method for providing a secure move of a decryption key, comprising of
encrypting the decryption key in a first domain,
sending said encrypted decryption key to a second domain, receiving a confirmation message from said second domain confirming receipt of said

395 encrypted decryption key,
deleting the decryption key in said first domain, and sending an acknowledgement message to said second domain, where said acknowledgement message indicates the decryption key has been deleted in said first domain
400
8 The computer-readable carrier of claim 7, wherein said encrypted decryption key is sent to said second domain with an integrity check

9 An apparatus for providing a secure move of a decryption key, comprising 405 means for encrypting the decryption key in a first domain, means for sending said encrypted decryption key to a second domain, means for receiving a confirmation message from said second domain confirming receipt of said encrypted decryption key,
means for deleting the decryption key in said first domain, and
410 means for sending an acknowledgement message to said second domain, where said acknowledgement message indicates the decryption key has been deleted in said first domain

10 A method for providing a secure move of a decryption key, comprising
415 receiving an encrypted decryption key sent from a first domain by a second domain,
decrypting said encrypted decryption key, sending a confirmation message to said first domain confirming receipt of said encrypted decryption key,
receiving an acknowledgement message from said first domain, where said acknowledgement message indicates the decryption key has been deleted in said first domain, and
enabling said decryption key for accessing a protected digital object