SYSTEM AND METHOD FOR OBFUSCATING DATA USING INSTRUCTIONS AS A SOURCE OF PSEUDORANDOM VALUES
Patent №
US 9,116,765
Granted
2015-08-25
Filed 2011
Owner
APPLE INC.
Lab
—
AI components
1
kr
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
13308515
Disclosed herein are systems, methods, and non-transitory computer-readable storage media for obfuscating data using instructions as a source of pseudorandom values. Obfuscation is performed by receiving instructions and data and compiling the instructions and the data into an executable file having a text section and a data section. The text section can include instructions and the data section can include data segments. The system obfuscates the data section iteratively by generating a hash of an address for a respective data segment, and based on the hash, identifying a corresponding address in the text section that includes at least one instruction. The system retrieves a mask key from the corresponding address and applies the mask key to the respective data segment, yielding a masked data segment. In one embodiment, integrity verification of obfuscated data is performed without exposing the data in an unprotected state by utilizing multiple mask keys.
AI classification
Ownership
APPLE INC.
assignment · 273120292
Assignors
MCLACHLAN, JON, MYLES, GIDEON M., LEROUGE, JULIEN
On an employer assignment, the assignors are typically the inventors.