Method and device for data encryption in programming of control units
First Claim
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1. A method of data encryption in programming of a control unit comprising:
- encrypting data to be transmitted in a programming unit using a first key;
transmitting the encrypted data to the control unit via a data line; and
decrypting the encrypted data in the control unit using a second key provided in the control unit.
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Abstract
A method and a device for data encryption in programming of control units is described. In this method, the data to be transmitted is encrypted byte by byte with a first key in a programming unit and then transmitted to a control unit via a data line. Then the data is decrypted in the control unit by using a second key which is provided in the control unit.
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Citations
16 Claims
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1. A method of data encryption in programming of a control unit comprising:
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encrypting data to be transmitted in a programming unit using a first key;
transmitting the encrypted data to the control unit via a data line; and
decrypting the encrypted data in the control unit using a second key provided in the control unit. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A data encryption system, comprising:
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a programming unit in which a first key is provided;
a control unit in which a second key is provided; and
a data line coupled to the programming unit and the control unit for transmitting encrypted data. - View Dependent Claims (8, 9, 10)
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11. A computer program for execution on a computing unit, the computer program comprising:
a program code arrangement for performing an encryption in accordance with a table and a hash function. - View Dependent Claims (12, 14)
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13. A computer program for execution on a company unit, the computer program comprising:
a program code arrangement for performing a decryption in accordance with a table and a hash function.
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15. A computer-readable medium, comprising:
a program code arrangement for performing an encryption in accordance with a table and a hash function.
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16. A computer-readable medium, comprising:
a program code arrangement for performing a decryption in accordance with a table and a hash function.
Specification