Method and apparatus for decrypting encrypted data stored on a record carrier

Apparatus for decrypting encrypted data stored on a record carrier, including:

• a) key generating means for generating a decryption key using a unique carrier identifier associated with said record carrier, a hidden key (HK) stored in a hidden channel on said record carrier and a password key, and
• b) decryption means for decrypting said encrypted data stored on said record carrier using said generated decryption key.

Record carrier for storing data in encrypted form, including a unique carrier identifier associated with said record carrier and a hidden key stored in a hidden channel on said record carrier,

• wherein said unique carrier identifier and said hidden key are used together with a password key for generating a decryption key, said generated decryption key being used for decrypting said encrypted data stored on said record carrier.

A method for encrypting data to be stored on a record carrier, including comprising the steps of:

• a) generating a decryption key using a unique carrier identifier to be associated with said record carrier, a hidden key to be stored in a hidden channel on said record carrier and a password key, and
• b) encrypting said data to be stored on said record carrier using said generated decryption key (DK).

Apparatus for encrypting data to be stored on a record carrier, including:

• a) key generating means for generating a decryption key using a unique carrier identifier to be associated with said record carrier, a hidden key to be stored in a hidden channel on said record carrier and a password key, and
• b) encryption means for encrypting said data to be stored on said record carrier using said generated decryption key.