Device and method for transmitting data in an encrypted form
OwnerJérome BERGERinventor
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Abstract
A control device controlling a device obtains a key that is supposed to be a public encryption key of a device recipient of data is to be transmitted in encrypted form. The control device obtains information derived from the public encryption key of the recipient device, and checks the obtained key, thanks to said information derived from the public encryption key of the recipient device. The control device authorises or prohibits the communication device from transmitting the data in encrypted form thanks to the obtained key, according to said checking.
Claims10
A method for deciding on transmission of encrypted data to a recipient device, the method being implemented by a control device controlling a communication device, said method comprising:
- obtaining a key supposed to be a public encryption key of said recipient device;
- checking the obtained key, thanks to information derived from the public encryption key of said recipient device;
- and
- authorising or prohibiting transmission, thanks to information for addressing the recipient device, of said data, encrypted thanks to the obtained key, according to said checking;
- wherein the method comprises beforehand:
- obtaining information derived from the public encryption key of said recipient device;
- and wherein the information for addressing the recipient device is obtained by said control device thanks to the information derived from the key supposed to be the public encryption key of said recipient device.
A control device for controlling a communication device, the control device being configured for:
- deciding on transmission of encrypted data to a device recipient of said encrypted data;
- obtaining a key supposed to be a public encryption key of said recipient device:
- checking the obtained key, thanks to information derived from the public encryption key of said recipient device;
- and
- authorising or prohibiting transmission of said data, encrypted thanks to the obtained key, according to said checking;
- wherein the control device is further configured for:
- obtaining, prior to obtaining the key supposed to be the public encryption key of said recipient device, the information derived from the public encryption key of said recipient device;
- and wherein the control device is adapted for obtaining the information for addressing the recipient device thanks to the information derived from the key supposed to be the public encryption key of said recipient device.
Dependencies are inferred from the claim text.