mpi: harden set_cond functions against EM leakage
c7c25b6e6e6b
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Description

mpi: harden set_cond functions against EM leakage

* mpi/mpih-const-time.c (_gcry_mpih_set_cond): Use two masks for
selecting output.
* mpi/mpiutil.c (_gcry_mpi_set_cond): Use two masks for selecting
output.

GnuPG-bug-id: T5330
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>

Details

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jukivili

Authored on Apr 3 2021, 8:53 PM

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rC1266f5bb02b7: mpi: harden swap_cond functions against EM leakage

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Restricted Maniphest Task

Event Timeline

jukivili committed rCc7c25b6e6e6b: mpi: harden set_cond functions against EM leakage (authored by jukivili).Apr 9 2021, 4:23 PM

jukivili added a task: Restricted Maniphest Task.Apr 12 2021, 7:40 PM

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mpi/

mpih-const-time.c

mpiutil.c

rCc7c25b6e6e6b

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mpi/mpih-const-time.c