Steganography obsfucation

Patent metadata

Field	Value
Publication number	US-10949392-B2
Application number	US-201916459374-A
Country	US
Kind code	B2
Filing date	Jul 1, 2019
Priority date	May 31, 2017
Publication date	Mar 16, 2021
Grant date	Mar 16, 2021

Abstract

A system and method for preventing hidden data being passed using steganography by performing additional steganography to obscure the hidden data such that the hidden data is unrecoverable without information regarding the method of the additional steganography. This system and method allows for preventing hidden data without having to decipher the hidden data.

First claim

What is claimed is:

1. A system, comprising:
a non-transitory memory storing instructions; and
one or more hardware processors coupled to the non-transitory memory and configured to read the instructions from the non-transitory memory to cause the system to perform operations comprising:
receiving a media file over a network communication;
identifying the media file based on a checksum and/or a hash of the media file:
detecting that a first steganography has been applied to the media file based on encoded information of the media file including the checksum or the hash of the media file; and
applying, based on the encoded information of the media file, a second steganography on the media file, the second steganography configured to remove the first steganography from the media file, wherein the encoded information includes instruction on the applying the second steganography on the media file to remove the first stenography from the media file.

2. The system of claim 1 , wherein the operations further comprise: applying a third steganography to the media file to obscure a steganographic message stored within the media file, the steganographic message generated by applying a fourth steganography to the media file.

3. The system of claim 1 , wherein applying the third steganography comprises encrypting the fourth steganography applied to the media file.

4. The system of claim 3 , wherein applying the third steganography to encrypt the fourth steganography does not affect a quality of the media file.

5. The system of claim 2 , wherein the third steganography and the fourth steganography are applied to the media file in a frequency domain.

6. The system of claim 2 , wherein the third steganography and the fourth steganography are applied to the media file in a spatial domain.

7. A computer-implemented method, comprising:
receiving a media file over a network communication;
identifying the media file based on a checksum and/or a hash of the media file;
detecting that a first steganography has been applied to the media file based on encoded information of the media file including the checksum or the hash of the media file; and
applying, based on the encoded information of the media file, a second steganography on the media file, the second steganography configured to remove the first steganography from the media file, wherein the encoded information includes instruction on the applying the second steganography on the media file to remove the first steganography from the media file.

8. The computer-implemented method of claim 7 , further comprising: applying a third steganography to the media file to obscure a steganographic message stored within the media file, the steganographic message generated by applying a fourth steganography to the media file.

9. The computer-implemented method of claim 8 , wherein the applying the third steganography comprises encrypting the fourth steganography applied to the media file.

10. The computer-implemented method of claim 9 , applying the third steganography to encrypt the fourth steganography does not affect a quality of the media file.

11. The computer-implemented method of claim 8 , wherein the third steganography and the fourth steganography are applied to the media file in a frequency domain.

12. The computer-implemented method of claim 8 , wherein the third steganography and the fourth steganography are applied to the media file in a spatial domain.

13. A non-transitory computer-readable medium having stored thereon instructions executable by a computer to cause the computer to perform operations comprising:
receiving a media file over a network communication;
detecting that a first steganography has been applied to the media file based on encoded information of the media file including a checksum or a hash of the media file; and
applying, based on the encoded information of the media file, a second steganography on the media file, the second steganography configured to remove any steganography messages within the media file, wherein the encoded information includes instruction on the applying the second steganography on the media file to remove the first steganography from the media file.

14. The non-transitory computer-readable medium of claim 13 , the operations further comprise: applying a third steganography to the media file to obscure a steganographic message stored within the media file, the steganographic message generated by applying a fourth steganography to the media file.

15. The non-transitory computer-readable medium of claim 14 , wherein applying the third steganography comprises encrypting the fourth steganography applied to the media file.

16. The non-transitory computer-readable medium of claim 14 , wherein the third steganography and the fourth steganography are applied to the media file in a frequency domain.

17. The non-transitory computer-readable medium of claim 14 , wherein the third steganography and the fourth steganography are applied to the media file in a spatial domain.

Assignees

• Paypal Inc

Inventors

• Boutnaru Shlomi

Classifications

• G06F21/6209 Primary

  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 · CPC title

• H04L63/0428

  wherein the data content is protected, e.g. by encrypting or encapsulating the payload · CPC title

• H04L63/123

  received data contents, e.g. message integrity · CPC title

• H04L63/0245

  Filtering by information in the payload · CPC title

• G06F16/148 Primary

  File search processing · CPC title