# US 2021/0240844 A1 · Securing Recorded Media Data From Unauthorized Access

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- Number: US 2021/0240844 A1
- Document ID: US20210240844A1
- Status: Published application
- Kind: A1
- Application number: 16/780,008
- Filed: 2020-02-03
- Published: 2021-08-05
- Earliest claimed: 2020-02-03
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Uday Kumar ARAVA; Mohammed JAVID; Karthik KANNAN
- Web page: https://patentgrep.com/patent/US20210240844A1

## CPC

- G06F 21/6209: {to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself}
- G06F 21/107: {License processing; Key processing}
- G06F 21/32: using biometric data, e.g. fingerprints, iris scans or voiceprints
- G06F 21/78: to assure secure storage of data (address-based protection against unauthorised use of memory G06F12/14; record carriers for use with machines and with at least a part designed to carry digital markings G06K19/00)
- H04L 9/0861: {Generation of secret information including derivation or calculation of cryptographic keys or passwords}
- H04L 9/0894: {Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage}
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

Methods for securing image, video and/or audio media data captured by a media recording device are disclosed. Various embodiments may include determining whether media data captured by the media recording device should be secured in response to the media recording device activating a media recording application, obtaining an encryption key in response to determining that media data captured by the media recording device should be secured, encrypting media data (e.g., image, video and/or audio data) captured by the media recording device using the obtained encryption key, and storing the encrypted media data. In some embodiments, determining that media data should be secured and obtaining the encryption key may be based on user inputs in response to prompts. In some embodiments, determining that media data should be secured may be based on whether the media recording device satisfies a geo-location criterion and the encryption key may be provided by a server.

## Claims

### Claim 1

A method of securing media data captured by a media recording device, comprising:
determining, by a processor of the media recording device, whether media data captured by the media recording device should be secured;
obtaining, by the processor, an encryption key in response to determining that media data captured by the media recording device should be secured;
encrypting, by the processor, media data captured by the media recording device using the obtained encryption key; and
storing, by the processor, the encrypted media data.

### Claim 2 (depends on 1)

The method of claim 1, wherein determine whether media data captured by the media recording device should be secured comprises:
prompting a user to indicate whether media data captured by the media recording device should be secured in response to the media recording device activating a media recording application;
receiving a user input by the processor; and
determining, by the processor, whether media data captured by the media recording device should be secured based on the received user input.

### Claim 3 (depends on 2)

The method of claim 2, wherein obtaining an encryption key in response to determining that media data captured by the media recording device should be secured comprises:
prompting the user to enter an encryption key; and
obtaining the encryption key from a user input.

### Claim 4 (depends on 2)

The method of claim 2, wherein obtaining an encryption key in response to determining that media data captured by the media recording device should be secured comprises:
authenticating the user; and
obtaining the encryption key from a secure memory of the media recording device in response to authenticating the user.

### Claim 5 (depends on 4)

The method of claim 4, wherein authenticating the user comprises one or more of authenticating the user based on biometric information obtained by a sensor of the media recording device, or authenticating the user based on a password or personal identifier number (PIN) entered by the user.

### Claim 6 (depends on 4)

The method of claim 4, further comprising:
receiving the encryption key from a user input after the user has been authenticated by the media recording device; and
storing the received encryption key in a secure memory of the media recording device.

### Claim 7 (depends on 2)

The method of claim 2, wherein obtaining an encryption key in response to determining that media data captured by the media recording device should be secured comprises:
authenticating the user; and
autogenerating the encryption key in a secure process of the media recording device in response to authenticating the user.

### Claim 8 (depends on 2)

The method of claim 2, further comprising:
obtaining, by the processor, the encryption key in response to an input requesting access to or rendering of encrypted media data;
using the obtained encryption key by the processor to decrypt the encrypted media data; and
providing access to or rendering the decrypted media data.

### Claim 9 (depends on 8)

The method of claim 8, wherein obtaining the encryption key in response to an input requesting access to or rendering of an encrypted media file comprises:
prompting the user to enter the encryption key; and
obtaining the encryption key from a user input.

### Claim 10 (depends on 8)

The method of claim 8, wherein obtaining the encryption key in response to an input requesting access to or rendering of an encrypted media file comprises:
authenticating the user; and
obtaining the encryption key from a secure memory of the media recording device in response to authenticating the user.

### Claim 11 (depends on 1)

The method of claim 1, wherein:
determine whether media data captured by the media recording device should be secured comprises:
determining, by the processor, a location of the media recording device in response to the media recording device activating a media recording application;
determining, by the processor, whether the location of the media recording device satisfies a geo-location criterion; and
determining, by the processor, that media data captured by the media recording device should be secured in response to the location of the media recording device satisfying the geo-location criterion; and
obtaining an encryption key in response to determining that media data captured by the media recording device should be secured comprises obtaining the encryption key by the processor from a computing device associated with the geo-location criterion.

### Claim 12 (depends on 11)

The method of claim 11, further comprising:
obtaining, by the processor, the encryption key in response to an input requesting access to or rendering of an encrypted media file; and
using the obtained encryption key by the processor to decrypt the encrypted media file; and
providing access to or rendering the decrypted media data.

### Claim 13 (depends on 12)

The method of claim 12, wherein obtaining the encryption key in response to an input requesting access to or rendering of an encrypted media file comprises:
determining, by the processor, a location of the media recording device in response to the input requesting access to or rendering of an encrypted media file;
determining, by the processor, whether the location of the media recording device satisfies a geo-location criterion; and
obtaining the encryption key by the processor from a server associated with the geo-location criterion in response to the location of the media recording device satisfying the geo-location criterion.

### Claim 14 (depends on 12)

The method of claim 12, wherein obtaining the encryption key in response to an input requesting access to or rendering of an encrypted media file comprises:
determining, by the processor, a location of the media recording device;
determining, by the processor, whether the location of the media recording device satisfies a geo-location criterion; and
obtaining the encryption key by the processor from a secure memory of the media recording device in response to the location of the media recording device satisfying the geo-location criterion.

### Claim 15 (depends on 12)

The method of claim 12, wherein obtaining the encryption key in response to an input requesting access to or rendering of an encrypted media file comprises:
authenticating the user; and
in response to authenticating the user, obtaining the encryption key by the processor from one of a secure memory of the media recording device or from a server associated with the geo-location.

### Claim 16

A media recording device, comprising:
a media recording device;
a memory; and
a processor coupled to the media recording device and the memory device, and configured with processor-executable instructions to perform operations comprising:
determining whether media data captured by the media recording device should be secured;
obtaining an encryption key in response to determining that media data captured by the media recording device should be secured;
encrypting media data captured by the media recording device using the obtained encryption key; and
storing the encrypted media data in the memory.

### Claim 17 (depends on 16)

The media recording device of claim 16, wherein the processor is further configured with processor-executable instructions to perform operations such that determine whether media data captured by the media recording device should be secured comprises:
prompting a user to indicate whether media data captured by the media recording device should be secured in response to the media recording device activating a media recording application;
receiving a user input by the processor; and
determining whether media data captured by the media recording device should be secured based on the received user input.

### Claim 18 (depends on 17)

The media recording device of claim 17, wherein the processor is further configured with processor-executable instructions to perform operations such that obtaining an encryption key in response to determining that media data captured by the media recording device should be secured comprises:
prompting the user to enter an encryption key; and
obtaining the encryption key from a user input.

### Claim 19 (depends on 17)

The media recording device of claim 17, wherein the processor is further configured with processor-executable instructions to perform operations such that obtaining an encryption key in response to determining that media data captured by the media recording device should be secured comprises:
authenticating the user; and
obtaining the encryption key from a secure memory of the media recording device in response to authenticating the user.

### Claim 20 (depends on 17)

The media recording device of claim 17, wherein the processor is further configured with processor-executable instructions to perform operations such that obtaining an encryption key in response to determining that media data captured by the media recording device should be secured comprises:
authenticating the user; and
autogenerating the encryption key in a secure process of the media recording device in response to authenticating the user.

### Claim 21 (depends on 17)

The media recording device of claim 17, wherein the processor is further configured with processor-executable instructions to perform operations further comprising:
obtaining the encryption key in response to an input requesting access to or rendering of encrypted media data;
using the obtained encryption key by the processor to decrypt the encrypted media data; and
providing access to or rendering the decrypted media data.

### Claim 22 (depends on 21)

The media recording device of claim 21, wherein the processor is further configured with processor-executable instructions to perform operations such that obtaining the encryption key in response to an input requesting access to or rendering of an encrypted media file comprises:
prompting the user to enter the encryption key; and
obtaining the encryption key from a user input.

### Claim 23 (depends on 21)

The media recording device of claim 21, wherein the processor is further configured with processor-executable instructions to perform operations such that obtaining the encryption key in response to an input requesting access to or rendering of an encrypted media file comprises:
authenticating the user; and
obtaining the encryption key from a secure memory of the media recording device in response to authenticating the user.

### Claim 24 (depends on 16)

The media recording device of claim 16, wherein the processor is further configured with processor-executable instructions to perform operations such that:
determine whether media data captured by the media recording device should be secured comprises:
determining a location of the media recording device in response to the media recording device activating a media recording application;
determining whether the location of the media recording device satisfies a geo-location criterion; and
determining that media data captured by the media recording device should be secured in response to the location of the media recording device satisfying the geo-location criterion; and
obtaining an encryption key in response to determining that media data captured by the media recording device should be secured comprises obtaining the encryption key by the processor from a computing device associated with the geo-location criterion.

### Claim 25 (depends on 24)

The media recording device of claim 24, wherein the processor is further configured with processor-executable instructions to perform operations further comprising:
obtaining the encryption key in response to an input requesting access to or rendering of an encrypted media file; and
using the obtained encryption key by the processor to decrypt the encrypted media file; and
providing access to or rendering the decrypted media data.

### Claim 26 (depends on 25)

The media recording device of claim 25, wherein the processor is further configured with processor-executable instructions to perform operations such that obtaining the encryption key in response to an input requesting access to or rendering of an encrypted media file comprises:
determining a location of the media recording device in response to the input requesting access to or rendering of an encrypted media file;
determining whether the location of the media recording device satisfies a geo-location criterion; and
obtaining the encryption key by the processor from a server associated with the geo-location criterion in response to the location of the media recording device satisfying the geo-location criterion.

### Claim 27 (depends on 25)

The media recording device of claim 25, wherein the processor is further configured with processor-executable instructions to perform operations such that obtaining the encryption key in response to an input requesting access to or rendering of an encrypted media file comprises:
determining a location of the media recording device;
determining whether the location of the media recording device satisfies a geo-location criterion; and
obtaining the encryption key by the processor from a secure memory of the media recording device in response to the location of the media recording device satisfying the geo-location criterion.

### Claim 28 (depends on 25)

The media recording device of claim 25, wherein the processor is further configured with processor-executable instructions to perform operations such that obtaining the encryption key in response to an input requesting access to or rendering of an encrypted media file comprises:
authenticating the user; and
in response to authenticating the user, obtaining the encryption key by the processor from one of a secure memory of the media recording device or from a server associated with the geo-location.

### Claim 29

A non-transitory processor-readable medium having stored thereon processor-executable instructions configured to cause a processor of a media recording device to perform operations comprising:
determining whether media data captured by the media recording device should be secured;
obtaining an encryption key in response to determining that media data captured by the media recording device should be secured;
encrypting media data captured by the media recording device using the obtained encryption key; and
storing the encrypted media data.

### Claim 30

A media recording device, comprising:
means for determining whether media data captured by the media recording device should be secured;
means for obtaining an encryption key in response to determining that media data captured by the media recording device should be secured;
means for encrypting media data captured by the media recording device using the obtained encryption key; and
means for storing the encrypted media data.