1. A method for secure data transfer in an automation network, the automation network comprising at least one program invocation and at least one subassembly, the program invocation including a program invocation rights system and the subassembly including a subassembly rights system, the method comprising the steps of:
authenticating a user by the program invocation rights system aided by user data for approving a use of the program invocation by the user;
encrypting and signing data by the program invocation, the data containing the user data;
transferring the data by a transfer medium from the program invocation to the subassembly;
decrypting the data in the subassembly;
authenticating the program invocation by a corresponding subassembly; and
authenticating the user by the subassembly rights system aided by the user data.
2. The method as claimed in claim 1, wherein the encryption is an asymmetric encryption.
3. The method as claimed in claim 2, wherein the program invocation and the subassembly each have an asymmetric public subassembly key, wherein the program invocation has a private program invocation key and the subassembly has a private subassembly key, the method further comprising the steps of:
asymmetrically encrypting the data in the program invocation with the public subassembly key and signing the data with the private program invocation key;
transferring of the encrypted and signed data from the program invocation to the subassembly; and
decrypting the encrypted data in the subassembly with the private subassembly key and authenticating the program invocation as sender of the data with the public program invocation key.
4. The method as claimed in claim 1, wherein the encrypted and signed data is stored by the program invocation on a storage medium and prior to the decryption in the subassembly is read from the storage medium.
5. The method as claimed in claim 1, wherein the encrypted and signed data is transferred over a cable link between the program invocation and the subassembly.
6. The method as claimed in claim 5, wherein the data transfer is effected over the cable link by one of the following protocols: multi-point interface (MPI), PROFIBUS, Ethernet, Transmission Control ProtocolInternet Protocol (TCPIP), PROFINET.
7. The method as claimed in claim 5, wherein the data transfer is effected over a wireless link by one of the following protocols: Ethernet, Transmission Control ProtocolInternet Protocol (TCPIP), PROFINET.
8. The method as claimed in claim 1, wherein the data contains a symmetrical key for encrypted data transfers from the program invocation to the subassembly.
9. The method as claimed in claim 3, wherein the data contains a further private subassembly key and a further public program invocation key for encrypted data transfers from the program invocation to the subassembly.
10. A control device in an automation network, the control device containing a program invocation, and the program invocation having a program invocation rights system, the control device comprising:
an authentication device for authentication of a user by the program invocation rights system with the help of user data for approving a use of the program invocation by the user;
an encryption and signing device configured to encrypt and sign data by the program invocation, the data containing the user data; and
a transfer device configured to transfer the data by a transfer medium.
11. The control device as claimed in claim 10, wherein the control device is configured to:
authenticate a user by the program invocation rights system aided by user data for approving a use of the program invocation by the user;
encrypt and sign data by the program invocation, the data containing the user data; and
transfer the data by a transfer medium from the program invocation to the subassembly.
12. A subassembly in an automation network, the subassembly including a subassembly having a subassembly rights system, the subassembly comprising:
a receiver configured to receive data;
a decryption device configured to decrypt data;
a device authenticator configured to authenticate a control device as the sender of the data; and
a user authenticator configured to authenticate a user by the subassembly rights system aided by the user data.
13. The subassembly as claimed in claim 12, wherein the subassembly is configured to:
decrypt the data in the subassembly;
authenticate the program invocation by a corresponding subassembly; and
authenticate the user by the subassembly rights system aided by the user data.
14. An automation network comprising:
a control device containing a program invocation, and the program invocation having a program invocation rights system, the control device comprising:
an authentication device for authenticating of a user by the program invocation rights system with the help of user data for approving a use of the program invocation by the user;
an encryption and signing device configured to encrypt and sign data by the program invocation, the data containing the user data; and
a transfer device configured to transfer the data by a transfer medium; and
a subassembly including a subassembly having a subassembly rights system, the subassembly comprising:
a receiver configured to receive data;
a decryption device configured to decrypt data;
a device authenticator configured to authenticate a control device as the sender of the data; and
a user authenticator configured to authenticate a user by the subassembly rights system aided by the user data;
wherein the control device is configured to transfer data by a transfer medium from the control device to the subassembly; and
wherein the subassembly is configured to receive the transferred data.
15. A non-transitory computer-readable storage medium encoded with instructions, which during execution in a control device in an automation network, the control device containing a program invocation and the program invocation having a program invocation rights system, prompt the control device to execute a method comprising:
authenticating a user by the program invocation rights system aided by the user data;
encrypting and signing data by the program invocation, the data containing the user data; and
transferring the data by a transfer medium.
16. A non-transitory computer-readable storage medium encoded with instructions, which during execution in a subassembly in an automation network, the subassembly having a subassembly rights system, prompt the subassembly to execute a method comprising:
receiving data;
decrypting the data;
authenticating a control device as a sender of the data; and
authenticating a user by the subassembly rights system aided by the user data.
17. The computer-readable storage medium as claimed in claim 16, wherein the computer-readable storage medium is configured to:
authenticate a user by the program invocation rights system aided by user data for approving a use of the program invocation by the user;
encrypt and sign data by the program invocation, the data containing the user data;
transfer the data by a transfer medium from the program invocation to the subassembly;
decrypt the data in the subassembly;
authenticate the program invocation by a corresponding subassembly; and
authenticate the user by the subassembly rights system aided by the user data.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A utility vehicle comprising:
a vehicle body;
a seat provided on the vehicle body;
a pair of right and left entrances through which a user to be seated on the seat gets into and out of the vehicle, the entrances being provided at both sides of the vehicle body in a vehicle width direction; and
a pair of right and left doors for opening and closing the pair of right and left entrances, respectively;
each of the pair of right and left doors including a door body closing at least a portion of a corresponding entrance, a hinge for coupling the door body to the vehicle body such that the door body is rotatable around the hinge, and a latch device having an operation member for opening and closing the door;
the door body including a door component which is substantially symmetric in shape in a rightward and leftward direction and having a mounting hole to which the operation member is mounted; and
the mounting hole being a hole formed from the door component wherein the door component has a hollowed shape formed using resin by blow molding.
2. The utility vehicle according to claim 1,
wherein a pair of right and left front doors are arranged side by side at a front and a pair of right and left rear doors are arranged side by side at a rear;
the door body constituting each of the pair of right and left front doors including a door component which is substantially symmetric in shape in the rightward and leftward direction; and
the door body constituting each of the pair of right and left rear doors including a door component which is substantially symmetric in shape in the rightward and leftward direction.
3. The utility vehicle according to claim 1, wherein at least one of the doors includes a decorative cover mounted to an outer surface of the door body in the vehicle width direction.
4. The utility vehicle according to claim 3, wherein the door body includes a plurality of recesses on an outer surface and an inner surface in the vehicle width direction; and
a pair of recesses among the plurality of recesses, the pair of recesses facing each other in the vehicle width direction and having respective holes into which fastener members for fastening the decorative cover and the door body together are inserted, the holes communicating with each other.
5. The utility vehicle according to claim 1,
wherein the door body includes recesses on an outer surface and an inner surface in the vehicle width direction; and
at least portions of the recesses are positioned forward relative to a seat bottom of the seat and above an upper surface of the seat bottom of the seat to correspond to a knee of the user seated on the seat when viewed from a side.
6. The utility vehicle according to claim 1, wherein the door body includes a plurality of recesses on an outer surface and an inner surface in the vehicle width direction; and
a pair of recesses among the plurality of recesses, which face each other in the vehicle width direction, have respective holes into which fastener members for fastening the door body and the hinge together are inserted, the holes communicating with each other.