Sony patents image verification using random data checks
Sony describes a system where a sensor sends image data to a processor along with a digital signature. The processor independently creates a matching signature from the same data to confirm the image has not been altered in transit.
In the filing’s own words
Signal processing that prevents falsification of an image is disclosed. In one example, a signal processing device includes a second processing unit that transmits sensing data and first encryption information obtained by encrypting a part of the sensing data to a first processing unit. The second processing unit includes a first encryption unit that generates the first encryption information by encrypting a part of data randomly selected from the sensing data according to a random number generation procedure shared with the first processing unit or adding authentication information to the part of data. The first processing unit includes a second encryption unit that generates second encryption information by encrypting a part of data randomly selected from the received sensing data or adding authentication information to the part of data, and a verification unit that verifies whether or not the first encryption information matches the second encryption information.
What exactly they claim (claim 1)
1. A signal processing device comprising: a first processing unit; and a second processing unit that transmits, to the first processing unit, sensing data and first encryption information obtained by encrypting a part of the sensing data, wherein the second processing unit includes a first encryption unit that generates the first encryption information by encrypting a part of data randomly selected from the sensing data according to a random number generation procedure shared with the first processing unit or adding authentication information to the part of data, and the first processing unit includes: a second encryption unit that generates second encryption information by encrypting a part of data randomly selected from the sensing data received from the second processing unit according to the random number generation procedure or adding authentication information to the part of data; and a verification unit that verifies whether or not the first encryption information matches the second encryption information.
Facts
- Company
- Sony (Sony Semiconductor Solutions Corporation)
- Official title
- SIGNAL PROCESSING DEVICE AND SIGNAL PROCESSING METHOD
- Publication number
- US20260260020A1
- Application number
- 18841238
- Filed
- Mar 6, 2023
- Published
- Sep 3, 2026
- Inventors
- 1
- Claims
- 19
Classified under
G06F 21/64 Physics & computingG06F 21/602 Physics & computingH04L 9/0869 Electricity & electronicsMore from Sony in Security & privacy
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.