Zynq bitstream encryption. May 30, 2024 · The AMD Zynq™ UltraScale+™ MPSoC uses RSA-4096 authentication, which means the primary and secondary key sizes are 4096-bit. 1 English Abstract Introduction Zynq UltraScale+ MPSoC Security CMVP Overview FIPS 140-3 Requirement Sections Cryptographic Module Specification Cryptographic Module Interfaces Roles, Services, and Authentication Software/Firmware Security Operational Environment Physical Security Non-invasive Security Sensitive Security Parameter Something went wrong. This application note describes a simple step-by-step process to generate an encrypted bitstream and encryption keys (both Advanced Encryption Standard Galois/Counter Mode (AES-GCM) and RSA authentication) using the Xilinx® Vivado® Design Suite. SECURITY，其中LEVEL1是禁止回读，LEVEL2禁止回读和重新烧写FPGA。 但如果对手的逆向能力很强，比如说在FPGA上电加载bit的时候用逻辑分析仪把用bit文件“读”出来，这个简单的设置肯定就不行了。 Apr 3, 2025 · 2. By our attack, we can circumvent the bitstream encryption and decrypt an assumedly secure bitstream on all Xilinx 7-Series devices completely and on the Virtex-6 devices partially. A FSBL and any additional PS images or PL bitstreams along with the encryption key and authentication signature must be supplied to bootgen. ENCRYPTION. READBACK. This obfuscated key is created by encrypting your AES-256 key with a metalized family key stored in the silicon. Table 1. 2k次，点赞8次，收藏5次。仅当FPGA中存储的AES密钥与生成加密Bitstream时使用的AES密钥完全匹配时，FPGA芯片才能成功加载Bitstream，有效地避免了Bitstream数据被别有用心的人恶意拷贝。还可以修改【Select location of encryption key】选项，选择使用eFuse内的AES密钥解密Bitstream。将使用AES密钥加密 Mar 20, 2023 · Learn about secure bitstream programming for Zynq Ultrascale+ MPSoC using Linux, including configuration and implementation details. I have a lot of questions! 1) I'm using Vivado 2016. CBC ensures that two different parts of the bitstream that have the same actual values (for example, all zeros) encrypt to different patterns. Crytography is generally useful when used in high level applications: protecting data in memory, network security, and authentication of endpoints. You will also need to use external encryption devices to protect your design. Feb 16, 2023 · Xilinx AES bitstream encryption uses a technique called Cipher Block Chaining (CBC) with a 256-bit AES key. Prevents malicious bitstreams from being loaded. How it works: The FPGA verifies a cryptographic hash (SHA-256/384) or HMAC before loading the bitstream. The wiki mentions that Encrypted Bitstream Loading with Device-Key is supported in the driver for FPGA manager: Solution Zynq PL Programming With FPGA Manager - Xilinx Wiki - Confluence (atlassian. For AES bitstream encryption, set the write_bitstream property to enable bitstream encryption. , side-channel analysis and probing, these attacks require sophisticated equipment and considerable technical expertise. May 22, 2025 · The bitstream generator (write_bitstream), provided with the Vivado tools, can generate encrypted as well as non-encrypted bitstreams. net) But the hardware supports "Encrypted and Authenticated" bitstream loading. May 29, 2020 · Explore the security features of Zynq Ultrascale+ MPSoC, including encryption, authentication, and secure boot mechanisms for enhanced protection. Consequently, vendors have introduced bitstream encryption, offering authenticity and confidentiality. Zynq UltraScale+ devices can detect this random (or invalid) image/bitstream by authenticating the encrypted image/bitstream using asymmetric authentication (RSA-4096) before being fed to the decryptor. You can either specify a custom 256-bit key as an input to the bitstream generator, which Hello, I have a question about bitstream encryption for Zynq 7000 (7z020). 1 and I should be able to perform bitstream encryption. Mar 20, 2023 · For authentication and/or encryption of secure bitstream, XilFPGA uses XilSecure library services. We're moving mountains to get it sorted. bit file IV P0 Feb 20, 2023 · This Design Advisory covers 7 Series and Virtex-6 FPGAs and contains Xilinx's response to an article published on April 15th 2020 that was presented at "USENIX Security 2020" about defeating bitstream encryption. U-boot communicates directly with PMU firmware via ATF for bitstream downloading. OBFUSCATEKEY property, Vivado write_bitstream software creates a new key called ObfuscateKey in the output NKY file. I couldn't actually see any device when trying to open it in Vivado Hardware Manager. I was looking for a way to encrypt the bitstream file so we could protect our IPs from unauthorized access. Apr 19, 2020 · Second, the HMAC key KHMAC is stored inside the encrypted bitstream. 0. This prevents an attacker from decrypting xilinx bitstream based on seen patterns. Note: Bitstream settings for encryption are not valid for Zynq 7000 devices. On these devices, the bitstream encryption provides authen-ticity by using an SHA-256 based HMAC and also provides confidentiality by using CBC-AES-256 for encryption. Table of Contents Jun 23, 2018 · 如果仅仅是防止回读，可以简单设置BITSTREAM. This May 30, 2024 · The device configuration settings for AMD Zynq™ 7000 devices available for use with the set_property <Setting> <Value> [current_design] Vivado tool Tcl command are shown in the following table. Even though attacks against bitstream encryption have been proposed in the past, e. Further, they can change KHMAC, as the security of the key depends solely on the confidentiality of the bitstream. I assume the difference between "Encrypted" and "Encrypted and Authenticated" is the addition of HMAC. The images have to be generated using bootgen with proper authentication and encryption keys. Steps to program the Advanced Encryption Standard Global System for Mobile communications (AES-GSM) encryption key and the hash of the RSA public Hi everyone, I'm having some problems achieving either bitstream encryption or generate a boot image (for SD card) encrypted from SDK. Zynq 7000 Bitstream Settings Setting Def Aug 28, 2024 · Document ID WP543 Release Date 2024-08-28 Revision 1. However, when I tried to encrypt the partitions with AES encryption (no RSA for now), only the standalone application would load correctly while the PL didn't. Mar 26, 2021 · Describes a process to generate and program an encrypted bitstream and encryption key for 7 series FPGAs using the Vivado tools. High level cryptography is supported in SSL and IPSeC. Table of Contents set_property BITSTREAM. Authentication (HMAC/SHA) What it does: Ensures the bitstream comes from a trusted source. ENCRYPT Yes [current_design] 3) 参考 (UG908) 中“器件配置比特流设置”节的表 A-1，在 XDC 或 Tcl 脚本中按同样方式设置其余加密选项。 4) 示例如下： 注释：这些选项也可以通过 Tcl 设置并反映在 XDC 中，可以使用 Tcl 控制台或 Tcl 中的脚本。 Key storage, key and HMAC key need to be configured in the constrains file Xilinx uses AES Cipher Block Chaining mode (CBC) The encryption can be done by the Vivado bitstream generator (write bitstream) Key storage, key and HMAC key need to be configured in the constrains file Generated bitstream will be encrypted and written to . Feb 16, 2023 · When you set the BITSTREAM. Boot images are assembled and encrypted using software provided by AMD, bootgen. g. Aug 10, 2022 · U-Boot for Zynq is capable to authenticate and decrypt bitstream/images from the command line. The correct headers are generated automatically when bootgen builds the boot image. May 29, 2025 · Note: For additional information including support for RSA authenticated bitstreams, refer to (Using Encryption and Authentication to Secure an UltraScale/UltraScale+ FPGA Bitstream (XAPP1267)). This note provides examples which show how to use these functions at the basic level. Feb 16, 2023 · We strongly urge customers to read the configurations user guide to familiarize themselves with where Xilinx stands on bitstream security and what available options there are as well as information on how to implement them. May 29, 2020 · Explore the security features of Zynq UltraScale+ MPSoC for enhanced protection and reliability in embedded systems. FPGA Support: Xilinx: Supports HMAC (Zynq UltraScale+, Versal) Intel: Supports SHA-256 (Stratix 10, Agilex) Best Practice: Combine with encryption Jan 15, 2020 · The Zynq UltraScale+ MPSoC provides hardware and software SHA, RSA, and AES cryptographic functions. Both zynq rsa/zynq aes commands works getting the image from the DDR memory, allowing the images be loaded from wide variety of sources (flash memory, TFTP sever). Hence, an attacker who can circumvent the encryption mechanism can read KHMAC and thus calculate the HMAC tag for a modified bitstream. I tried two ways of solving the problem: a) Open some project in Vivado environment ---> Click in Synthesized Design ---> Tools ----> Edit Device Dec 27, 2024 · 文章浏览阅读1. I am currently A FULL BREAK OF THE BITSTREAM ENCRYPTION OF XILINX 7-SERIES FPGAS. zk ybk8n fgxh y75 cpjqp dmbh klmcdd iq9x qayk pga