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- W1995447946 abstract "To protect Field-Programmable Gate Array (FPGA) designs against Intellectual Property (IP) theft and related issues such as product cloning, all major FPGA manufacturers offer a mechanism to encrypt the bitstream that is used to configure the FPGA. From a mathematical point of view, the employed encryption algorithms (e.g., Advanced Encryption Standard (AES) or 3DES) are highly secure. However, it has been shown that the bitstream encryption feature of several FPGA families is susceptible to side-channel attacks based on measuring the power consumption of the cryptographic module. In this article, we present the first successful attack on the bitstream encryption of the Altera Stratix II and Stratix III FPGA families. To this end, we analyzed the Quartus II software and reverse engineered the details of the proprietary and unpublished schemes used for bitstream encryption on Stratix II and Stratix III. Using this knowledge, we demonstrate that the full 128-bit AES key of a Stratix II as well as the full 256-bit AES key of a Stratix III can be recovered by means of side-channel attacks. In both cases, the attack can be conducted in a few hours. The complete bitstream of these FPGAs that are (seemingly) protected by the bitstream encryption feature can hence fall into the hands of a competitor or criminal—possibly implying system-wide damage if confidential information such as proprietary encryption schemes or secret keys programmed into the FPGA are extracted. In addition to lost IP, reprogramming the attacked FPGA with modified code, for instance, to secretly plant a hardware Trojan, is a particularly dangerous scenario for many security-critical applications." @default.
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- W1995447946 date "2014-12-15" @default.
- W1995447946 modified "2023-09-25" @default.
- W1995447946 title "Physical Security Evaluation of the Bitstream Encryption Mechanism of Altera Stratix II and Stratix III FPGAs" @default.
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- W1995447946 doi "https://doi.org/10.1145/2629462" @default.
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