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RSA timing side channels #37

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hannesm opened this issue Mar 11, 2020 · 0 comments
Open

RSA timing side channels #37

hannesm opened this issue Mar 11, 2020 · 0 comments
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security relevant for security

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@hannesm
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hannesm commented Mar 11, 2020

as written in changes, while powm_sec is used now, the erem, multiplication, addition and subtraction are prone to timing side channels. While gmp has _sec_ functions for this (https://gmplib.org/manual/Low_002dlevel-Functions.html#Low_002dlevel-functions-for-cryptography), these are not used or exposed by zarith.
@hannesm hannesm added the security relevant for security label Mar 11, 2020
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