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A comment on Show HN: The SC4-HSM, a fully open USB hardware secure module. Parent comment

Re:Show HN: The SC4-HSM, a fully open USB hardware secure mo... by lisper on Friday July 08, 2016 @04:08AM (#12054160)
The RDP on the F4 is more capable than the F1. The F1 only has level 1 RDP, the F4 has level 2 as well. If you can break level 2 without decapping the chip that would be big news (and probably result in a class action lawsuit against STM). Can you describe how you did it? [EDIT: Never mind, I see you already answered that in the other branch of this thread.]
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Re:Show HN: The SC4-HSM, a fully open USB hardware secure mo... by kosma on Sunday July 10, 2016 @05:37AM (#12065085)
I had a look at the documentation and it seems they finally made it a JTAG fuse and not just a value in program memory. Nice move.
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