-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Aloha!
As you might have seen here previously, we have discussed building our own tamper protected master key memory. The idea is to use a tiny, low power FPGA. The FPGA contains logic needed to implement: 1. Interface to the main FPGA. Currently SPI, but consider UART. 2. Storage of a master key with logic for anti-remanence (controlled periodic bit flipping. 3. Fast (ns) key erasure when detecting an event on an external input. We are currently considering using the Lattice ICE devices. One of the chief reasons is the project IceStorm by Clifford stoll. http://www.clifford.at/icestorm/ With the tool flow in Icestorm we should be able to show that the secure storage and protection of the "crown jewels", the master key does not rely on the implicit trust of proprietary tools and black box device features. I'm considering buying one of the following boards. Neither of them are expensive. Both should have ample resources for what we intend to do. The question is more which one is easiest to interface to the Cryptech Alpha board for testing. Unless I'm missing some important detail. http://www.latticesemi.com/icestick http://www.latticesemi.com/en/Products/DevelopmentBoardsAndKits/iCE40HX8KBreakoutBoard.aspx If you have any suggestions, comments, feedback I would appreciate them. - -- Med vänlig hälsning, Yours Joachim Strömbergson - Assured AB ======================================================================== -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQIcBAEBCAAGBQJa4c6xAAoJEF3cfFQkIuyNCAsQAIHdFYk5aMmzPI+VxjgiSkp9 /AoYjyYBPH1rHBA8sPuZ+j8Bc2MEui1A2FNZsZp+XXeMUhIDGyI2I/D/bn+tyJoR Lha+RzPPfOysApplR/jYGqk+q2HAeT0/o6IVtUokBfU2egYVKtN+iVaWRnW9W1s2 ADoJvityoQfLKoJHIHUG086vKErYOemv1ZzeeedsJtJm+WxOQbxhkPZ4sNIOm45r eX762pUeqK8JJatqjrnvhglu47a1uV7jTgTZlP7D45ha7cZEvRr+/GaNrFAWIvO4 AQavil1dx/WcqH04Tqpx1wmpumPxroL5e4wgv3u1+1sEOp4IBD/rgauUoR/XyfpQ PClk2o3tGeUhOzV/WrIKR2k+PDF8sc3g7RBu1/nKUSgAg8mzalpchloeX4x33+rD rV8iSufkt36t9qBABmrkbsPv11pcXoUPRulNvxMTC5QTV/Qc2xuXZZNNzQgvM77u NbGfQI8sSCTiBnGhueKzg2MPoVehQHK7EtIjPxZfuv5NvAQb6xfbP7QyAquQ5ufE g2ROX+eN9U6Gnly3RceXLvVb26RiQcVEyiilnrXNs27Ik4t+20X00Kt0ltE7sfNC c5ouE3qWWdUcaa439TdNV2kvdPUaxJC/anynkki8oubdArQx4UH+r+XJTjqCWa6f omNOLTQnDUOH9fonCCBS =hux+ -----END PGP SIGNATURE----- _______________________________________________ Tech mailing list Tech@cryptech.is https://lists.cryptech.is/listinfo/tech
