초록 ▼

A method and system for the secure transmission and storage of protectable information, such as patient information, by means of a patient card. The data stored on the patient card are protected by cryptographic methods. The data is decrypted only with the same patient card if a doctor is authorized

A method and system for the secure transmission and storage of protectable information, such as patient information, by means of a patient card. The data stored on the patient card are protected by cryptographic methods. The data is decrypted only with the same patient card if a doctor is authorized and the patient has given his agreement. All information which the patient card needs in order to decide whether the doctor is authorized, and the key for protecting the control data and the random key are held on the chip. The patient data can be freely transmitted to any storage medium. The chip controls both the access to the data and the encryption and decryption functions. Random keys, which are themselves stored encrypted together with the data, ensure that every data record remains separate from every other data record, and that only authorized persons can access it. Every patient card has its own record key. The system and method in accordance with the invention is not directed exclusively to patient data but can be applied to any protectable data to which right of access is to be restricted.

대표청구항 ▼

[ What is claimed is:] [1.] A storage and information transmission system comprising:a chip card to which an owner can be assigned;a computer;an authorizing terminal connected with said computer by means of which an authorization of an user can be effected;a read/write device coupled to the computer

[ What is claimed is:] [1.] A storage and information transmission system comprising:a chip card to which an owner can be assigned;a computer;an authorizing terminal connected with said computer by means of which an authorization of an user can be effected;a read/write device coupled to the computer and the chip card, wherein data is exchanged between the computer and the chip card; andat least one storage medium coupled to said computer such that data can be exchanged between the computer and the storage medium,wherein said chip card includes a generator with which a new cryptographic key can be produced whenever the computer requires said new cryptographic key and the data in said at least one storage medium comprises encrypted data and an encryption of its cryptographic key generated by the chip card, the chip card generating and storing a second cryptographic key for encrypting the encrypted cryptographic key.