EP3665889A1 - Übertragen eines vertraulichen medizinischen datensatzes, insbesondere zur fernbefundung - Google Patents
Übertragen eines vertraulichen medizinischen datensatzes, insbesondere zur fernbefundungInfo
- Publication number
- EP3665889A1 EP3665889A1 EP18785885.7A EP18785885A EP3665889A1 EP 3665889 A1 EP3665889 A1 EP 3665889A1 EP 18785885 A EP18785885 A EP 18785885A EP 3665889 A1 EP3665889 A1 EP 3665889A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- record
- data
- confidential
- processing unit
- encrypted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/045—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply hybrid encryption, i.e. combination of symmetric and asymmetric encryption
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
- G06F21/6245—Protecting personal data, e.g. for financial or medical purposes
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H10/00—ICT specially adapted for the handling or processing of patient-related medical or healthcare data
- G16H10/60—ICT specially adapted for the handling or processing of patient-related medical or healthcare data for patient-specific data, e.g. for electronic patient records
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/88—Medical equipments
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2463/00—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00
- H04L2463/062—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00 applying encryption of the keys
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/12—Applying verification of the received information
- H04L63/123—Applying verification of the received information received data contents, e.g. message integrity
Definitions
- the method of remote diagnosis is available, with a technically qualified radiologist undertaking the professional interpretation of the radiological images and clinical information while being spatially removed from the imaging medical modality.
- confidential data records may contain, in particular, personal data of patients, for example results of medical imaging methods or laboratory results.
- radiological remote evaluation must sensitive and patient-related image data from a medi ⁇ zinischen device which medical imaging Before ⁇ directions operates (for example, a hospital or a radiology practice), for reporting to a spatially separated from the first device workstation (for example, a computer workstation are a radiologist ) can be sent without an unauthorized third party can inspect this image data.
- Sending confidential records to only a designated recipient can result in inefficiencies.
- the designated recipient may be unavailable for a long period of time or may be already busy processing other confidential records.
- the object is achieved by a method for transferring a confidential data set according to claim 1, by a transmission system according to claim 18 by a computer program product according to claim 20 and by a computerlesba ⁇ res storage medium of claim 21st
- the invention is based on the fact that a transaction record comprising an encrypted data record is determined by means of a data source, wherein the encrypted data record is based on an encryption of the confidential data record. Furthermore, the transaction record is transferred from the data source to a central distribution unit. Furthermore, egg ⁇ ne receiving processing unit is selected from the units cookedsein- by means of the central distribution unit. Furthermore, the transaction record is transmitted from the central distribution unit to the receiving processing unit. Furthermore, the receiving data processing unit uses the confidential data set based on a decryption of the encrypted data set determined, in particular of the encrypted data set contained in the transaction data ⁇ record. The inventors have recognized that it is mög ⁇ Lich by this method to send a confidential record flexibly to a receiving of several processing units without having to be the confidential data from the central distribution unit inspected.
- the first determination of the transaction data record is in particular ⁇ sondere ⁇ be converted by means of a computing unit of the data source.
- the first transmission of the transaction data record from the data source to a central distribution unit is ⁇ leads, in particular of an interface of the data source and of an interface of the central distribution unit, the first transferring is performed by means of particular egg ⁇ nes first network.
- the selection of a receiving processing unit is carried out in particular by means of a computing unit of the central distribution unit.
- the second transmission of the transaction data record from the centra ⁇ len distribution unit to the receiving processing ⁇ unit is carried out in particular by means of the interface of the central ⁇ eral distribution unit and by means of an interface of the receiving processing unit, the two ⁇ te transferring takes place in particular via a second network.
- the second network can in particular also be identical to the first network.
- the second determination of the confidential data record is carried out in particular by a computing unit of the receiving processing unit.
- the transaction record and / or the encrypted record comprise metadata of at least one supplementary confidential record.
- the method comprises the step of requesting the supplementary confidential data record based on the metadata by means of the receiving processing unit.
- the method comprising providing a first of the ER plementary ligand confidential data set encrypted by the data source to the receiving skilletsein ⁇ unit.
- the inventors have recognized that it can be decided by the processing unit Ready Stel ⁇ development of metadata, first at the receiving processing based on the confidential data and / or metadata whether the supplementary confidential records must be transferred. In particular, this can be dispensed with a transfer of the supplementary confidential record, if it is not needed, and thus data bandwidth can be saved.
- the first providing includes as sub-steps of a third determining a supplementary transaction data set comprising a complement ⁇ the encrypted data, wherein the additional encrypted data based on an encryption of the additional confidential data set, a third transferring the supplementary transaction data record from the data source to the central distribution unit, a fourth transmission of the supplementary transaction data record from the central distribution unit to the receiving processing unit, and a fourth determination of the supplementary confidential data record based on a decryption of the supplementary encrypted data record by means of the receiving processing unit.
- the method may ⁇ also receive a fifth transmitting the supplementary transaction data record from the data source to the processing unit include.
- the inventors have recognized that by such method the supplementary confidential data record can be made particularly secure.
- the metadata at least wherein the requesting of the additional confidential data set transferring comprise an identifier of the additional confidential data set (particularly an encrypted transferring) the identifier of the are received, ⁇ constricting processing unit includes to the data source.
- the inventors have recognized that it can be uniquely determined by the use of an iden- tifikators in the metadata of additional confidential Since ⁇ cost rate. In particular, therefore, incorrect transmissions or unnecessary transmissions of supplementary confidential data records are prevented.
- the encryption of confidential data set is a symmetric Ver ⁇ encryption based on a data key
- the decryption of the encrypted data set a symmetric decryption is based on the data key.
- this aspect of the method comprises Locks ⁇ doubted transmitting the data key from the data source to the receiving processing unit.
- the sym ⁇ metric decryption is an inverse operation of the symmetrical Verschlußins.
- the transmission of the data key can also take place via the central distribution unit.
- the encrypted transmission may occur on a request of the central distribution unit in response to the selection of the receiving processing unit.
- the inventors have recognized that this aspect of the method allows the data key to be transmitted flexibly and securely to the receiving processing unit.
- the encryption of the supplementary confidential data record is a symmetric encryption based on a supplementary data key, wherein the decryption of the supplementary encrypted data record is a symmetric decryption based on the supplementary data key.
- the supplementary data key and the data key can be identical. If the supplementary data key, and the data keys are not identical, this aspect in particular a supplementary ver ⁇ -encrypted transmitting the supplementary data key from the data source to the receiving processing unit may take to ⁇ the method further, in particular the transmission using the encrypted distribution unit may occur.
- the inventors have realized that by this aspect of the method of comple mentary ⁇ data key can be transmitted flexibly and securely to the receiving processing unit.
- the data key is used only for the encryption of exactly one confidential record.
- the inventors have found that by only one-time use of the data key of confidential data is better protected because the de ⁇ encryption can only take place after the transfer of the unique data key and the timing of decisions ⁇ lung therefore irrespective of the date of transmitting the transaction record can be chosen and controlled.
- the receiving processing unit may decrypt a transaction data record ⁇ directly after its reception.
- the encrypted transfer of the data key and / or that he ⁇ nautende transmitting the encrypted supplementary data key in an asymmetrical cryptographic system is based.
- a key pair is associated comprising a secret key and a public key in this case each of the processing units, the secret Keyring ⁇ sel is only accessible by the respective processing unit.
- To transfer the data key is then encrypted insbesonde ⁇ re with the public key of the receiving processing unit by the data source and deciphered upon receiving, by the receiving processing unit with the secret key.
- the transaction record or the confidential record is signed based on a key pair of the data source, and / or the supplemental transaction record or the supplementary confidential record are signed based on the key pair of the data source.
- the key pair of Da ⁇ tenario includes in particular a public and a private key. Signing of Transtresssozosat ⁇ zes, the confidential data set, the supplementary transaction data set and / or supplementary confidential data set based in particular on the secret key of the data source, the signature can be verified in particular by means of öf ⁇ lic key of the data source.
- the transaction record, the confidential record, the supplementary transaction record and / or the supplementary confidential record may in particular comprise the signature, but the signature may also be transmitted separately from the transaction record, the confidential record, the supplementary transaction record and / or the supplementary confidential record , As a signature does not include sensitive data, the signature can also be stored in particular on the centra ⁇ len distribution unit. The inventors ha ⁇ ben recognized that the authorship of the confidential record can be verified by a signature, and at the same time can protect confidential data against manipulation.
- the encrypted transmission of the data key and / or the supplementary encrypted transmission of the supplementary data key are based on a quantum-proof cryptography system.
- a quantum cryptography secure system especially based on quantum effects, or in particular encryption techniques include ⁇ whose decryption for one on Quantum effects-based processing unit in the NP Komplexi ⁇ tuschstail is.
- Examples are the Quanten whylaus ⁇ exchange, or classical algorithms based on mathematical ⁇ rule grids (eg ring-LWE, an abbreviation for "ring LEARN ing with errors” or ntruencrypt) based on multivariate polynomials th (for example the Unbalanced-oil and-vinegar methods) or based on error-correcting codes (eg the
- McEliece cryptosystem The inventors have recognized that the transmission method is also safe from future malicious decryption attempts by means of a quantum-proof cryptography system.
- the encrypted transfer of the data key is initiated by the receiving processing unit when the first time an access is made to the confi ⁇ chen data set by means of the receiving processing unit.
- the inventors have recognized that it is mög ⁇ Lich by this late transmission of the data key nor the transmission of the encrypted data set in the period between the transfer of the transaction data record from the central distribution unit for receiving the data source and the first access to the Trans reliesda ⁇ cost rate or the Undo the confidential record (by never transferring the associated data key).
- the access to the confidential data set comprises a preprocessing of the confidential data set (an English term for pre-processing is "pre-processing”.)
- pre-processing an English term for pre-processing is "pre-processing”.
- the preprocessing of the confidential data record in particular the calculation of a representation (an English technical term is "rendering") of the medical image data set include, or the application of a diagnostic ⁇ algorithm on the medical image data set.
- the diagnostic algorithm can be in particular a trai ⁇ ned algorithm, in particular a trained neuronal act network.
- the inventors have recognized that can be achieved by the transmission of the data key at the time of Vorver ⁇ processing on the one hand, that a long time as possible is available, the transaction Weggän- to make gig.
- the preprocessing is already completed when the confidential record is used, so in particular can be started directly with the use of the confidential record.
- the method further comprises the step of first receiving a first processing condition by the central distribution unit, the first processing condition is a condition for the processability of the confidential data set by one of a plurality of processing units, wherein the receiving processing unit, the first cookedsbedin ⁇ fulfilled.
- the step of selecting the receiving processing unit of the processing units ⁇ takes place such that the receiving processing unit satisfies the first processing condition.
- the first reception of the first processing condition is carried out in particular by the interface of the central distribution unit. The inventors have realized that by selecting based on the first processing condition, it can be ensured that the encrypted confidential record is sent only to appropriate or approved processing units.
- the first processing condition is based on whether there is a contractual arrangement between a first operator of the data source and a second operator of one of the processing units.
- a list with second operators or the processing units of the second operator can be received, whereby a contractual regulation exists between the second operators and the first operators.
- this can also be done at the first the first processing source to receive such a list for all possible data sources, in particular in the form of a matrix or table containing the existence of a contractual arrangement.
- the contractual provision governs in particular that a processing unit can process confidential data records of the data source. The inventors have recognized that this aspect of the invention can ensure that confidential data records are processed only by processing units approved for processing.
- the confidential data record is a medical data record, in particular a medical image data record, and processing information is further received upon first receiving, the processing information relating to at least one of the following parameters:
- the inventors have recognized that based on such processing information, the confidential data records can be distributed particularly efficiently to the processing units.
- the processed beitungsinformation comprises a second processing condition, wherein the receiving processing unit satisfies the second proces ⁇ processing condition.
- the inventors have recognized that based on a second processing condition, a particularly efficient selection of the receiving processing unit is possible.
- the receiving processing unit is randomly selected from a subset of the processing units. beitungsstatten selected, each of said processing units ⁇ said subset meets the first processing condition and the second processing condition.
- the inventors have recognized that can be provided based on a random selection ensures that the findings of the confidential data set is as objective as possible, and particularly for reporting adverse economic incentives be included ⁇ can be.
- the selecting of the receiving processing unit of the proces ⁇ processing units on the evaluation of a cost function for the processing units is based, wherein the cost function is based on the processing information. In particular, in this case the processing information is compared with corresponding parameters which are made available by the processing units.
- the inventors have recognized that on a cost function is based particularly efficient and be ⁇ may equitable distribution of confidential records to the processing units.
- selecting the receiving processing unit from the processing unit is based on an evaluation of the availability of the processing units.
- the processing units can inform the central distribution unit which number of confidential data records can be processed within a specific period (or within the same calendar day).
- the receiving processed is beitungshow selected such that it communicated to ⁇ number is not exceeded.
- the central distribution unit can also require the average time limited hours ⁇ men, the processing units for processing a confidential record, and the time available or an available time interval for processing confidential records can are received from the processing units to the central distribution unit become.
- the inventors have recognized that by considering the available times or the capacity of the processing units, a particularly rapid processing of the confidential data records can be achieved.
- the confidential data record is a medical data record, in particular a medical image data record.
- the method further comprises second providing the confidential medical evidence record by the receiving processing unit, second receiving diagnostic information by the receiving processing unit, and third transmitting the diagnostic information from the receiving processing unit to the data source.
- the diagnostic information can be based on the medical data record.
- the diagnostic information can be encrypted by the receiving processing unit, the diagnostic information can be transmitted encrypted from the receiving processing unit to the data source, and decrypted by the data source.
- the second providing ⁇ provide the confidential data set and the second catch Emp ⁇ a Befundungsinformation can be led off in particular by means of the interface of the receiving processing unit.
- the third transmitting Befindungsinforma- tion can be carried out in particular by means of the interface are received, the constricting ⁇ processing unit and by means of the interface of the data source.
- the inventors have recognized that, based on this aspect of the invention, a diagnosis of the confidential, here medical data record can be carried out particularly efficiently, for example within a remote diagnosis system.
- the findings information is transmitted back to the data source without being visible to an unauthorized third party.
- the third transmitting Befundungsinformation by the receiving processing unit is performed to the data source in that the Befundungsinformation is transmitted by the receiving processing unit to the central distribution unit, and that the Befundungsinformation then transmitted from the central ⁇ eral distribution unit to the data source becomes.
- the invention may also relate to a method for distributing a confidential data record, in particular carried out by means of a central distribution unit, which comprises the following method steps:
- transaction record comprises an encrypted record
- the encrypted record is based on encryption of the confidential record
- the invention further relates to a transmission system for transmitting a confidential data record comprising the following units: - data source configured for determining a first Trans ⁇ action record comprising an encrypted data, said encrypted data based on an encryption of the confidential data set,
- central distribution unit further adapted to select a receiving processing unit from the processing units, further adapted to secondly transmit the transaction record to the receiving processing unit,
- Receiving processing unit configured to secondly determine the confidential record based on a decryption of the encrypted record.
- Such a transmission system can be in particular to forms ⁇ be the method described above and according to the invention to perform its aspects.
- the transmission system is designed to execute these methods and their aspects, in that the data source, the central distribution unit and the receiving processing unit are designed to execute the corresponding method steps.
- the data source is particularly adapted to correspond ⁇ execute a method step, by an interface and an arithmetic unit of the data source are adapted to perform the corresponding process step.
- the central distribution unit is particularly adapted to perform a corresponding step by an interface and a processing unit of the central distribution unit are adapted to perform the corresponding method step ⁇ Ver.
- the receiving processing unit is particularly adapted to perform a corresponding step by an interface and a computer unit of the receiving processing unit are adapted to compensate for the corresponding process step ⁇ lead. 1 b
- the invention also relates to a computer program product with a computer program and a computer-readable medium.
- a largely software-based implementation has the advantage that even previously used transmission system can be retrofitted in a simple way by a software update in order to work in the inventive manner.
- Such a computer program product in addition to the Computerpro ⁇ gram optionally additional components such.
- additional components such as hardware components, such as hardware keys (dongles, etc.) for using the software include.
- the memory of the transmission system is to be understood as the total ⁇ plurality of memory units of the data source, the central distribution unit and the receiving processing unit.
- a computer program is in particular stored in the memory of a transmission system if it is stored in whole or in part in one or more memory units of the data source, the central distribution unit and the receiving processing unit.
- the program segments from the data source, the central distribution ⁇ unit and / or the receiving processing unit being ⁇ leads are, in particular of a computing unit of the data ⁇ source, a computing unit of the central distribution unit and / or a computing unit of the receiving processing unit.
- the invention may also relate to a central distribution unit comprising the following units:
- the computing unit may also relate to a data source and / or a receiving data processing unit, wherein the data source is designed, in the context of the inventive method for transmitting a confidential data record with a central distribution unit and / or to interact or a receiving processing unit to interact, and / or wherein the emp ⁇ scavenging data processing unit is designed as part of the inventive method or one of its aspects, with a central distribution unit and / or a receiving processing unit.
- the invention may also relate to a computer program product with a computer program, which is directly in a memory of a central distribution unit can be loaded, to execute all the steps of the method for distri ⁇ len a confidential data set with Pro ⁇ program portions when the program segments are executed by the central distribution unit ,
- the invention may also relate to a computerlesba ⁇ res storage medium on which readable by a central distribution unit and executable Programmab ⁇ sections are stored in order to perform all the steps of the method for distributing a confidential data set when the program segments are executed by the central distribution ⁇ unit.
- Encryption is a feature that maps a confidential record to an encrypted record.
- the confidential record can not be reconstructed from the encrypted record.
- a decryption is a function that maps the encrypted data record back to the confidential data record, in other words decryption is the inverse function of the encryption.
- encryption and decryption are based especially on the same data key (or on egg ⁇ nem first and a second key, said second Key from the first key can be calculated and vice versa.
- encryption and decryption are based in particular on a key pair comprising a public one
- the public key from the secret key is calculable, and ⁇ where in particular the secret key can not be ⁇ or calculated only with egg ⁇ brute force method from the public key.
- the encryption is not based on the secret key.
- FIG. 2 shows a flow diagram of an embodiment of a method for transmitting a confidential data record
- Fig. 3 shows a flow diagram of another embodiment of a method for transmitting a ver ⁇ confidential data set
- FIG. 4 shows a flowchart of a further embodiment of a method for transmitting a confidential data record
- Fig. 5 shows a first embodiment of the data structures structural ⁇ when transferring a confidential data set
- FIG. 6 shows a second exemplary embodiment of the data structures when transmitting a confidential data record and a supplementary confidential data record.
- Fig. 7 shows a third embodiment of the data structures structural ⁇ when transferring a confidential data set
- Fig. 8 shows a fourth embodiment of the data structures structural ⁇ when transferring a confidential data set and a supplemental set of confidential data
- Fig. 9 shows a fifth embodiment of the data structures structural ⁇ when transferring a confidential data set.
- Fig. 1 shows a transmission system comprising a data source 10, a central distribution unit 30, and meh ⁇ eral processing units 50, 60, 70 comprising a receiving processing unit 50.
- the data source 10 is 30, via a first network 20 to the central distribution unit
- the central Distribution unit 30 is connected to the processing units 50, 60, 70 via a second network 40.
- the transmission system shown here is to ⁇ forms to carry out an inventive method.
- the data source 10, the central distribution unit 30 and / or the processing units 50, 60, 70 may each be a computer, a microcontroller or an integrated circuit.
- the data source 10, the central distribution unit 30 and / or the processing units 50, 60, 70 may each be a computer, a microcontroller or an integrated circuit.
- the data source 10, the central distribution unit 30 and / or the proces ⁇ processing units 50 can be operated 60, 70 as a virtualized instances on a server.
- the data source 10 is a server in a medical facility that has a PACS (English Picture Conflict and Communication System acronym), RIS (English acronym for Radiology Information System), or a HIS (English acronym for "Hospital information sys- tem”).
- PACS English Picture Conflict and Communication System acronym
- RIS English acronym for Radiology Information System
- HIS Healthcare Information sys- tem
- ⁇ represent provided embodiment
- in the central Distributi ⁇ onsaku 30 is a virtual network of computers
- Embodiment of the processing units 50, 60, 70 to independently operable workstations, which can be controlled directly by Be ⁇ user inputs by a radiologist.
- the data source 10, the central distribution unit 30 and the processing unit 50, 60, 70 are spatially separated from one another.
- a plurality of the processing units 50, 60 are carried out in a spatial or structural composite 70, as example ⁇ beitsschn in Befundungs worn with several Befundungsar-. It is also conceivable that the data source 10 with one or more of the processing units
- each of the ⁇ tenario 10, in the illustrated embodiment comprise the central distribution unit 30 and processing units 50, 60, 70, an interface 11, 31,
- An interface 11, 31, 51, 61, 71 may be a hardware or Soft ⁇ act interface act (for example, PCI bus, USB or Firewire).
- a computing unit 12, 32, 52, 62, 72 may Hard ⁇ ware elements or software elements comprise beispielswei ⁇ se a microprocessor or a so-called FPGA (English acronym for "Field Programmable Gate Array").
- a memory ⁇ unit 13, 33, 53, 63, 73 may be realized as a non-permanent work ⁇ memory (random access memory, short-RAM) and / or as a permanent storage (hard drive, USB stick, SD card, solid State disk).
- the first network 20 and the second network 40 may be identical.
- the first network 20 and / or the second network 40 may be a local area network (an English term is "local area network", "LAN” for short) or a large area network (an English term is “wide area network”). short "WAN") act.
- An example of a local area network is an intranet, an example of a large area network is the Internet.
- the first network 20 and / or the second network 40 may in particular be wireless, in particular as WLAN (for "wireless LAN", in English the abbreviation "WiFi" is common) or as a Bluetooth connection.
- the first network 20 and / or the second network 40 may also be implemented as a combination of the mentioned examples.
- the exemplary embodiment illustrated here is the Internet both in the first network 20 and in the second network 40.
- the first step of the illustrated embodiment is the first determination DET-1 of a transaction data record 82 comprising an encrypted data record 81 by means of a data source 10, wherein the encrypted data record 81 ei ⁇ ner encryption of the confidential record 80 based.
- Encryption is this a symmetrical Locks ⁇ Selung using the AES-256 (AES is an English acronym for "Advanced Encryption Standard", a German translation is "advanced encryption standard" which is ⁇ trailing number is the key length of the data key 90 in bits ).
- the confidential data 80 is in this1,sbei ⁇ play a medical image data set (for example in DICOM format) for a remote evaluation is to be performed.
- a medical image data set for example in DICOM format
- Transaction data set 82 in this exemplary embodiment still processing information that includes a necessary medical qualification for the diagnosis of the confidential data record 80 and a desired duration until the presence of distance reporting and a targeted price range of the remote determination.
- the necessary qualification for the diagnosis of the confidential data record 80 is a second processing condition.
- Alternative symmetric encryption methods are DES (English acronym for "Data Encryption Standard"), Triple-DES, IDEA (English acronym for "International Data Encryption Algorithm”) or Blowfish. However, all other symmetric encryption methods are also applicable; in particular, the method according to the invention is independent of the specific choice of the symmetric encryption method.
- the next step of the illustrated embodiment is the first transmission TRM-1 of the transaction data set 82 from the data source 10 to a central distribution unit 30 via the first network 20. Subsequently, the transaction data record 82 can be stored in particular in the storage unit 33 of the central distribution unit 30.
- the next step of the illustrated embodiment is the first receiving REC-1 of a first cookedsbe ⁇ dingung by the central distribution unit 30, wherein the first processing condition is a condition for the processability of the confidential data set 80 by one of several processing units 50, 60, 70 ,
- the first receive REC-1 of the first processing condition is an optional step.
- the first proces ⁇ processing condition includes both the existence of a contractual agreement between the data source 10 and the cookedseinhei ⁇ th 50, 60, 70, as well as information about the availability of the processing units 50, 60, 70.
- the existence of the contractual arrangements is here represented by a table whose horizontal dimension speaks associated with the central distribution unit 30 data sources 10 ent ⁇ , and their vertical dimension of the connected to the central distribution unit 30 processing units
- a "1" or a “TRUE” is entered in a cell corresponding to a data source 10 and one of the processing units 50, 60, 70, if a contractual arrangement exists between the operator of the corresponding data source 10 (in this case a hospital) and the operator of the corresponding processing unit 50, 60, 70 (here a radiologist), and enters a "0" or a "FALSE", if no such contractual Regulation exists.
- the information about the availability of the processing units 50, 60, 70 is a list of all the processing units 50, 60, 70 currently in operation. This list is created and / or updated in this example by a regular request to all processing units 50, 60, 70. Alternatively, the individual processing units 50, 60, 70 can log on or off at the central distribution unit 30 in each case.
- the next step of the illustrated embodiment is selecting CHS of a receiving processing unit 50 from the processing units 50, 60, 70 by means of the central distribution unit 30. More specifically, in this embodiment, the receiving processing unit 50 satisfies the first processing condition. In this embodiment, the receiving processing unit 50 satisfies the first processing condition when there exists a contractual settlement between the operator of the data source 10 and the operator of the receiving processing unit 50, and when the receiving processing unit 50 is in operation at the time of selecting. Meeting the first proces ⁇ beitungsbedingung particular can be done by querying the table and described the list described quickly and efficiently.
- a subset of the processing units 50, 60, 70 is determined, each processing unit 50, 60, 70 of the subset to the processing ⁇ processing units 50, 60, 70, the first processing condition is fulfilled.
- the receiving processing unit 50 can hereby based on the processing information from the subset of the processing units 50, 60, 70 are selected.
- a cost function is evaluated for each of the processing units 50, 60, 70 of the subset of the processing units 50, 60, 70 for this purpose.
- This cost function has the following structure:
- K (d, d 0 , p, Po) a d - (d - d 0 ) - a p ⁇ (p - p 0 )
- do is the desired duration until the remote diagnosis is made
- po is the desired price range of the remote determination, which is given by the processing information.
- the parameter d is the probable duration until the remote diagnosis is present at a processing unit 50, 60, 70; the parameter p is the price for the remote diagnosis estimated by the processing unit 50, 60, 70.
- the parameters d and p are queried in this embodiment of the processing units 50, 60, 70, alternatively, the parameter d can, in particular on the basis of the distributed already in the processing units 50, 60, 70 transaction onskor accounts 82 automatically determined by the central Distributi ⁇ ons Maschinen 30 become.
- the parameters a d and a p are positive weighting factors that have either been set uniformly in the central distribution unit 30 or that have been specified by the data source 10 in the transaction record 82.
- the one processing unit 50, 60, 70 selected as receiving proces ⁇ processing unit 50 from the subset of the processing units 50, 60, 70, the cost function is minimum is.
- Wei ⁇ terhin flows into this embodiment still necessary for the remote evaluation skills in the cost function.
- the available qualifications of the processing units 50, 60, 70 can also be stored in the central distribution unit 30, or can be queried by them as needed.
- a qualification is here, for example the ability to diagnosis of a specific body part or a particular image data set (X ⁇ image, computed tomography recording, magnetic recording). The qualification can be particularly focused on one at the Processing unit 50, 60, 70 logged user basie ⁇ ren. Meets a processing unit 50, 60, 70 is not the necessary qualifications is set in this embodiment, the cost function to a maximum value.
- the selecting CHS of the receiving processing unit 50 can also be carried out at random from the subset of the proces ⁇ crizhenen 50, 60, 70 or from the processing units 50, 60, 70, in particular such that each of the processing units 50, 60, 70 having the same selection probability ,
- the next step of the illustrated embodiment is the second transmission of TRM-2 of the transaction record 82 from the central distribution unit 30 to the receiving processing unit 50, here via the second network 40. Thereafter, the transaction record 82 is stored in the storage unit 53 of the receiving processing unit 50.
- the data key 90 is at this point not yet at the emp ⁇ scavenging processing unit 50 before, therefore no access to the confidential data set 80 can still be made. This makes it possible to recall the transaction record 82, in other words, never to transmit the data key 90.
- the data key 90 can also be present in advance at the receiving processing unit 50, in which case the confidential data record can be determined, at least theoretically, directly after the second transmission TRM-2.
- the next step of the illustrated embodiment is the encrypted transmitting E-TRM the data key 90 from the data source 10 to the receiving processing ⁇ unit 50.
- This step is performed in this embodiment, in response to the initial attempt by the receiving processing unit 50, the confidential data ⁇ sentence 80 for the purpose of reporting. Specifically, in this case a request message from the receiving Ver ⁇ processing unit 50 via the second network 40, the central le distribution unit 30 and the first network 20 sent to the data source 10, which in response to the data key
- the step of transmitting the encrypted E-TRM the data key 90 from the data source 10 to the receiving Ver ⁇ processing unit 50 is optional if the data key 90 to the receiving processing unit 50 is already known.
- the encrypted transmission E-TRM is based in this embodiment on the asymmetric encryption method RSA.
- each of the processing units 50, 60, 70 is a key pair comprising a public key
- the public key of the data source 10 is known
- the ge ⁇ home key 92 is only the associated processing unit 50, 60, 70 known.
- the data source 10 may use the public key 91 to convert the data key 90 into an encrypted data key 83, and the receiving processing unit 50 may use the secret
- Key 92 convert the encrypted data key 83 into the original data key 90.
- the next step of the illustrated embodiment is the second determination DET-2 of the confidential record 80 based on a decryption of the encrypted record 81 by the receiving processing unit 50.
- the next steps of the illustrated embodiment are the second provisioning PROV-2 of the confidential record 80 for medical diagnosis by means of the receiving processing unit 50, the second receiving REC-2 of a diagnosis information by means of the receiving processing unit 50, and the third transfer TRM-3 of FIG Befundungsin ⁇ formation of the receiving processing unit 50 to the data source 10.
- These steps are optional, alternatively no feedback to the data source 10 can take place in other embodiments, again, alternatively, the feedback or the transmission of Befundungsinformation via another communication channel can be carried out in other embodiments For example by phone.
- the second providing PROV-2 of the confidential data set 80 takes place here in particular by displaying the ver ⁇ confidential data set 80 on an output device of adopting ⁇ DERS the receiving processing unit 50.
- the user advantageously input means are provided, the manipulation of the display of the confidential Allow record 80.
- the confidential data record 80 is an image data record, for example, a projection Direction and projection are received, a brightness and contrast adjustment and / or a determination of a picture detail.
- the second receiving REC-2 of the diagnosis information may be performed via the interface 53 of the receiving processing unit 50, alternatively by means of an input unit of the receiving processing unit 50 (for example, a keyboard or a microphone).
- the findings information may in particular be unstructured information
- the third transmission of TRM-3 of the diagnostic information from the receiving processing unit 50 to the data source 10 can in particular be encrypted.
- an asymmetric cryptography system can be used, with the difference that the data source 10 is already known as a receiver of the findings information, and thus also the public key of the data source 10.
- the third TRM-3 transmission in particular via the central Dis ⁇ distribution unit 30 done.
- the findings information may then be further processed by the data source 10, displayed, or stored along with the confidential record 80.
- FIG. 3 shows a flow chart of a further embodiment of a method according to the invention for transmitting a confidential data record 80.
- the steps until the second determination DET-2 of the confidential data record 80 by means of the receiving processing unit 50 correspond to the steps of the exemplary embodiment illustrated in FIG.
- Another step of the illustrated embodiment is requesting REQ of the supplemental confidential record 85 based on the metadata by the receiving processing unit 50. Specifically, it may be determined beforehand based on the confidential record 80 and the metadata whether a supplementary confidential record 85 is required by the receiving processing unit 50.
- the metadata may include one or more identifiers of supplementary confidential records 85. If it is at the additional confidential data records 85 to the medical image data in DICOM format, it can in particular a "Study Instance UID” ( “UID” is a Ak ⁇ ronym for "unique identifier”) or a "Series Instance UID” in the Metadata be contained, in particular as an identifier.
- UID is a Ak ⁇ ronym for "unique identifier”
- Series Instance UID in the Metadata be contained, in particular as an identifier.
- the additional confidential data can 85 other medical Since ⁇ data sets, in particular other medical image data sets , in particular medical image data sets which have been obtained prior to the imaging medical examination, that is to say preliminary examinations are available at an earlier point in time.
- the metadata may include, besides an identifier of the medical image data set, a description of the study, in particular a mapped examination area, a description of the imaging modality, and an imaging protocol.
- a list of preliminary examinations available at the data source 10 can be transmitted as metadata to a receiver on the side of the receiving processing unit 80, and the expert can decide on the basis of the list whether a preliminary examination must be considered for the diagnosis. This may be the case, for example, if the temporal change of a structure is relevant, for example in the case of a tumor disease.
- the request REQ of the supplementary confidential data record 85 is switched by the central distribution unit 30.
- a request or message comprising the metadata or a part of the metadata is sent from the receiving processing unit 50 to the central distribution unit 30, and the central distribution unit 30 forwards the message or the request to the data source , Alternatively, the request or message can also be sent directly from the receiving processing unit 50 to the data source 10.
- a further step of the illustrated embodiment is the first provision PROV of the supplementary confidential data record 50 in encrypted form by means of the data source 10 to the receiving processing unit 50.
- the first provision PROV-1 of the supplementary confidential data record 50 comprises a plurality of substeps.
- a first sub-step of the first provisioning PROV-1 is the third determination DET-3 of a supplementary transaction record 87 comprising a supplementary encrypted data record 86 by means of the data source 10, wherein the supplementary encrypted data record 86 is based on an encryption of the supplementary confidential data record 85.
- the encryption of confidential complementary data set 85 is a symmetrical closures ⁇ development based on the data key 90 that has already been used to encrypt it confidential record 80th This has the advantage that the data key 90 does not have to be retransmitted.
- another data key can also be used for the symmetrical encryption of the supplementary confidential data record, which then has to be transmitted from the data source 10 to the receiving processing unit analogously to the data key 90.
- the third TRM-3 transfer of the supplementary transaction data tensatzes 87 from the data source 10 to the central distribution unit 30, and the fourth transferring TRM-4 of the comple ⁇ collapsing transaction record 87 of the central distribut ⁇ tion unit 30 to the receiving processing unit 50.
- the third transferring TRM-3 and the fourth transferring TRM 4 of the supplementary transaction data record 87 may insbesonde ⁇ re analogous to the first transmitting TRM-1 and TRM-2 for the second transmit the transaction record 82 performed ⁇ to, and have all the advantageous embodiments and refinements of these steps.
- the supplementary transaction data record 87 may insbesonde ⁇ re analogous to the first transmitting TRM-1 and TRM-2 for the second transmit the transaction record 82 performed ⁇ to, and have all the advantageous embodiments and refinements of these steps.
- the supplementary TRM-3 and the fourth transferring TRM 4 of the supplementary transaction data record 87 may insbesonde ⁇ re analogous to the first transmitting T
- Transaction record 87 is transmitted directly from the data source 10 to the receiving processing unit 50, without the participation of the central distribution unit 30.
- TRM-3 of the supplementary transaction record is 87, the receiving processing unit 50 known at the time of the third transmitting, in contrast to Studentstra ⁇ supply of Transaction record 82 so the receiving processing unit 50 does not have to be selected first.
- the complementary Transakti ⁇ onschalsatz 87 includes the address of the receiving processing unit 50, so that is also known for the central proces ⁇ processing unit 30, must be connected to which of the cookedsein ⁇ units 50, 60, 70 of the supplementary transaction record 87 passed ,
- a further substep of the first provisioning PROV-1 is the fourth determining DET-4 of the supplementary confidential data record 85 based on a decryption of the supplementary encrypted data record 86 by means of the receiving processing unit 50.
- the decryption here is in particular a symmetrical decryption based on the data key 90.
- FIG. 4 shows a flow chart of a further exemplary embodiment of a method according to the invention for transmitting a confidential data record 80. This is a combination of those shown in FIG. 2 and FIG. 3 Embodiments.
- the steps of the illustrated exporting ⁇ approximately example may all advantageous embodiments and developments of the relevant steps of the embodiments shown in Fig. 2 and Fig. 3 in particular.
- the illustrated embodiment further comprises a third provision PROV-3 of the supplementary confidential data record 85 for medical diagnosis by means of the receiving processing unit 50.
- the third provision PROV-3 of the supplementary confidential data record 85 is ana ⁇ log for the second provision PROV-2 of the confidential data set 80th carried out.
- FIG. 5 show exemplary embodiments of the data structure in the method for transferring a confidential data set 80 and a supplementary confidential data record 85, in particular in the quel ⁇ le 10 and the receiving processing unit 50.
- the illustration of the central distribution unit 30 in each case was omitted, since this advantageously the Transakti ⁇ onschalsatz 82 and the supplementary transaction record 87 is not changed.
- the transaction record 82 includes the scrambling system rare record 81, wherein the encrypted data is apparent from the confidential data set 80 by a symmetric encryption with the schlüs ⁇ sel 90 81.
- the receiving processing unit 50 can reconstruct the confidential data 80 from the transaction record 82 by the encrypted data contained in the transaction record 82 is encrypted 81 using the data keys 90 symmetrically ⁇ ent. In this case, the data key 90 of both the data source 10 and the receiving processing unit 50 must be known.
- a supplementary transaction data record continues to be transmitted 87, wherein the additional transaction record includes an additional encrypted data 86, wherein the additional encrypted data record 86 can be seen by a symmetric encryption using the data key 90 from the additional confidential data 85th the receiving processing unit 50 can reconstruct the supplementary ver ⁇ confidential data 85 from the supplementary transaction record 87 by the supplementary encrypted contained in the supplementary transaction record 87 DA cost rate 86 to the data key 90 symmetrically entschlüs ⁇ is rare.
- both the Ver ⁇ encryption of confidential data record 80 as well as for the encryption of it complementary confidential record 85 uses the same data key 90.
- FIG. 7 and FIG. 7 are identical to FIGS. 5 and 5, FIG. 7 and FIG.
- FIG. 6 illustrates a method of transmitting the data key 90 from the data source 10 to the receiving processing unit 50.
- This method is based on an asymmetric cryptography system, here the RSA method (acronym for the inventors Rivest, Shamir and Adleman).
- RSA method an asymmetric cryptography system
- other systems may also be used, for example Diffie- Hellman, Merkle-Hellmann or elliptic curve-based systems.
- the receiving processing unit 50 is a key pair comprising a public
- the transaction data record 82 further includes a signature 84 of the encrypted data record 81 in addition to the encrypted data record 81.
- the data source 10 must also be assigned a secret key and a public key in the context of an asymmetrical cryptography system.
- the asymmetric cryptography system for determining the nature Sig- 84 may also be different from the asymmetric cryptography system for transmitting encrypted E-TRM the data key 90 in this case, advantageously, both Kryp ⁇ tographiesysteme but identical.
- a signature function is then applied to the encrypted data record 81 or the confidential data record 80 by means of the secret key of the data source 10.
- the signature function may also be applied to a hash of the encrypted record 81 or confidential record 80.
- To verify the signature 84 is then applied to the receiving processing unit 50 using the public key of the data source 10 is a Verifikati ⁇ onsfunktion on the signature, and the encrypted data 81, the confidential data set 80, the hash of the encrypted record 81 or the hash of the confidential record 80.
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17199022.9A EP3477903A1 (de) | 2017-10-27 | 2017-10-27 | Übertragen eines vertraulichen medizinischen datensatzes, insbesondere zur fernbefundung |
| PCT/EP2018/076784 WO2019081168A1 (de) | 2017-10-27 | 2018-10-02 | Übertragen eines vertraulichen medizinischen datensatzes, insbesondere zur fernbefundung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3665889A1 true EP3665889A1 (de) | 2020-06-17 |
Family
ID=60191210
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17199022.9A Withdrawn EP3477903A1 (de) | 2017-10-27 | 2017-10-27 | Übertragen eines vertraulichen medizinischen datensatzes, insbesondere zur fernbefundung |
| EP18785885.7A Pending EP3665889A1 (de) | 2017-10-27 | 2018-10-02 | Übertragen eines vertraulichen medizinischen datensatzes, insbesondere zur fernbefundung |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17199022.9A Withdrawn EP3477903A1 (de) | 2017-10-27 | 2017-10-27 | Übertragen eines vertraulichen medizinischen datensatzes, insbesondere zur fernbefundung |
Country Status (2)
| Country | Link |
|---|---|
| EP (2) | EP3477903A1 (de) |
| WO (1) | WO2019081168A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102024107123A1 (de) * | 2024-03-13 | 2025-09-18 | PONTON GmbH | Kommunikation mit mehreren benutzerterminals und anonymisiertem fluss vertraulicher daten |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8195481B2 (en) * | 2005-02-25 | 2012-06-05 | Virtual Radiologic Corporaton | Teleradiology image processing system |
| US7729928B2 (en) * | 2005-02-25 | 2010-06-01 | Virtual Radiologic Corporation | Multiple resource planning system |
| US20090193267A1 (en) * | 2008-01-28 | 2009-07-30 | Chiasen Chung | Secure electronic medical record storage on untrusted portal |
-
2017
- 2017-10-27 EP EP17199022.9A patent/EP3477903A1/de not_active Withdrawn
-
2018
- 2018-10-02 EP EP18785885.7A patent/EP3665889A1/de active Pending
- 2018-10-02 WO PCT/EP2018/076784 patent/WO2019081168A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP3477903A1 (de) | 2019-05-01 |
| WO2019081168A1 (de) | 2019-05-02 |
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