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lowRISC / opentitan

OpenTitan: Open source silicon root of trust
https://www.opentitan.org
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[lc_crtl doc] question regarding PRESENT-based scrambling mechanism #25196

Closed gkamendje closed 3 hours ago

gkamendje commented 3 hours ago

Description

The section "Conditional Transitions" of the theory of operation of the LCC see (https://github.com/lowRISC/opentitan/blob/master/hw/ip/lc_ctrl/doc/theory_of_operation.md) mentions a "PRESENT-based scrambling mechanism". I have never heard of this and I could not find any reference to this mechanism. I was wondering if anyone could share a pointer describing this scrambling mechanism.

gkamendje commented 3 hours ago

Found the answer under https://github.com/lowRISC/opentitan/blob/master/hw/ip/otp_ctrl/doc/theory_of_operation.md