a8ba31871e
- BLE peripheral applications - dr_piezo and bladder_patch projects Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
60 lines
1.8 KiB
C
60 lines
1.8 KiB
C
/*
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* cifra - embedded cryptography library
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* Written in 2014 by Joseph Birr-Pixton <jpixton@gmail.com>
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*
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* To the extent possible under law, the author(s) have dedicated all
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* copyright and related and neighboring rights to this software to the
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* public domain worldwide. This software is distributed without any
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* warranty.
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*
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* You should have received a copy of the CC0 Public Domain Dedication
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* along with this software. If not, see
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* <http://creativecommons.org/publicdomain/zero/1.0/>.
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*/
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#ifndef CF_CONFIG_H
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#define CF_CONFIG_H
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/**
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* Library configuration
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* =====================
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*/
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/* .. c:macro:: CF_SIDE_CHANNEL_PROTECTION
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* Define this as 1 if you need all available side channel protections.
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* **This option may alter the ABI**.
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*
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* This has a non-trivial performance penalty. Where a
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* side-channel free option is cheap or free (like checking
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* a MAC) this is always done in a side-channel free way.
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*
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* The default is **on** for all available protections.
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*/
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#ifndef CF_SIDE_CHANNEL_PROTECTION
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# define CF_SIDE_CHANNEL_PROTECTION 1
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#endif
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/* .. c:macro:: CF_TIME_SIDE_CHANNEL_PROTECTION
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* Define this as 1 if you need timing/branch prediction side channel
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* protection.
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*
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* You probably want this. The default is on. */
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#ifndef CF_TIME_SIDE_CHANNEL_PROTECTION
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# define CF_TIME_SIDE_CHANNEL_PROTECTION CF_SIDE_CHANNEL_PROTECTION
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#endif
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/* .. c:macro:: CF_CACHE_SIDE_CHANNEL_PROTECTION
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* Define this as 1 if you need cache side channel protection.
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*
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* If you have a microcontroller with no cache, you can turn this off
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* without negative effects.
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*
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* The default is on. This will have some performance impact,
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* especially on AES.
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*/
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#ifndef CF_CACHE_SIDE_CHANNEL_PROTECTION
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# define CF_CACHE_SIDE_CHANNEL_PROTECTION CF_SIDE_CHANNEL_PROTECTION
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#endif
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#endif
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