System for secure data storage on cd-rom

Details System for secure data storage on cd-rom System for secure data storage on cd-rom

G - Physics

06

F

G06F 12/14 (2006.01) G06F 1/00 (2006.01) G06F 21/00 (2006.01) G11B 20/00 (2006.01) G11B 23/00 (2006.01)

Patent

CA 2261629

A system for effectively protecting confidential encrypted data stored on a CD-ROM by using a decryption key which is never accessible in unscrambled form to the user. In addition to the CD-ROM (1) on which the data at least partially encrypted by means of an encryption algorithm having a decryption key (K) is stored, and a CD-ROM player, the system comprises an electronic decryption microcircuit (13) embedded in said CD-ROM (1); means for data communication between the CD-ROM player (2) and the electronic decryption microcircuit (13) embedded in the CD-ROM (1); a smart card (3) containing at least one portion (K1) of the decryption key (K), the optional remaining portion (K2) of the decryption key (K) being included in the electronic decryption microcircuit (13) embedded in the CD-ROM (1); and means for secure data communication between the smart card (3) and the electronic microcircuit (13) embedded in the CD-ROM (1). For decryption, the encrypted data read out of the CD-ROM (1) is input into the electronic decryption microcircuit (13) embedded in the CD-ROM (1), which temporarily and transiently stores a decryption key received from the smart card (3) by secure transmission at the start of the read-out process, and uses it to decrypt the data before restoring the decrypted data for use.

A system for effectively protecting confidential encrypted data stored on a CD-ROM by using a decryption key which is never accessible in unscrambled form to the user. In addition to the CD-ROM (1) on which the data at least partially encrypted by means of an encryption algorithm having a decryption key (K) is stored, and a CD-ROM player, the system comprises an electronic decryption microcircuit (13) embedded in said CD-ROM (1); means for data communication between the CD-ROM player (2) and the electronic decryption microcircuit (13) embedded in the CD-ROM (1); a smart card (3) containing at least one portion (K2) of the decryption key (K), the optional remaining portion (K2) of the decryption key (K) being included in the electronic decryption microcircuit (13) embedded in the CD-ROM (1); and means for secure data communication between the smart card (3) and the electronic microcircuit (13) embedded in the CD-ROM (1). For decryption, the encrypted data read out of the CD-ROM (1) is input into the electronic decryption microcircuit (13) embedded in the CD-ROM (1), which temporarily and transiently stores a decryption key received from the smart card (3) by secure transmission at the start of the read-out process, and uses it to decrypt the data before restoring the decrypted data for use. Ce système a pour but d'assurer une protection efficace de la confidentialité de données cryptées et stockées sur un CD-Rom par l'utilisation d'une clé de décryptage qui n'est jamais accessible en clair à l'utilisateur. Il comporte, outre le CD-Rom (1) sur lequel sont stockées des données cryptées au moins en partie avec un algorithme cryptographique ayant une clé de décryptage K et un lecteur de CD-Rom: un microcircuit électronique de décryptage (13) enrobé dans ledit CD- Rom (1); des moyens d'échange d'informations entre le lecteur de CD-Rom (2) et le microcircuit électronique de décryptage (13) enrobé dans le CD-Rom (1); une carte à puce (3) renfermant au moins une partie K1 de la clé de décryptage K, la partie restante éventuelle K2 de la clé de décryptage K figurant dans le microcircuit électronique de décryptage (13) enrobé dans le CD-Rom (1) et des moyens sécurisés d'échange d'informations entre la carte à puce (3) et le microcircuit électronique (13) enrobé dans le CD-Rom (1). Pour le décryptage, les données sues cryptées sur le CD-Rom (1) sont envoyées au circuit électronique de décryptage (13) enrobé dans le CD-Rom (1) qui stocke, de façon provisoire et fugitive, une clé de décryptage reçue de ia carte à puce (3), par une transmission sécurisée, en début de session de lecture, et l'utilise pour le décryptage des données avant de retourner les données décryptées en vue de leur exploitation.

Affiliated with

Also associated with

Rating

System for secure data storage on cd-rom does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for secure data storage on cd-rom, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for secure data storage on cd-rom will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1919237