G - Physics – 06 – K
Patent
G - Physics
06
K
G06K 19/07 (2006.01) G02B 26/10 (2006.01) H04N 1/03 (2006.01)
Patent
CA 2131673
An improved access control apparatus, method, and system are disclosed to enhance the security of information in cards of the type having data storage and functions which are not accessible without verification of the identity and the authority of a person requesting access. The card need not include identification information for others that may require access to information in a person's card. Several authorization profiles are provided in a card, but there is no need that a profile be identified to any one person in order that they each may perform required tasks using or adding information in another person's card. The identification card of a supervisor or doctor who requires access to another person's card contains secret information Xsup identifying the supervisor or doctor as having the authority of supervisor or physician and an encryption key. The secret authorization information is encrypted and transmitted through the reader to the other person's card where it is decrypted and compared with the X'sup secret value stored in the other person's card. If they agree, the supervisor is permitted to perform functions authorized to be performed by supervisors in accordance with the profile for supervisors in the other person's card. Each supervisor is identified by a supervisor's own card using a password, PIN, or biometrics that may be changed as often as desired without recalling the cards of others for update. The authorization information is not exposed outside of a secure environment. Therefore, unlike PINS which are exposed during entry, it need not be changed or updated during the life of the card.
Barrett B.p.
International Business Machines Corporation
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