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Improve documentation of MBEDTLS_MPI_IS_PUBLIC

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Signed-off-by: Janos Follath <janos.follath@arm.com>
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Janos Follath 2024-08-12 17:26:24 +01:00
parent 75ed58723e
commit e084964068
1 changed files with 6 additions and 1 deletions
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7
include/mbedtls/bignum.h
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@ -44,7 +44,12 @@
goto cleanup; \ goto cleanup; \
} while (0) } while (0)
/* Constants to identify whether a value is public or secret. /* Constants to identify whether a value is public or secret. If a parameter is marked as secret by
* this constant, the function must be constant time with respect to the parameter.
*
* This is only needed for functions with the _optionally_safe postfix. All other functions have
* fixed behavior that can't be changed at runtime and are constant time with respect to their
* parameters as prescribed by their documentation or by conventions in their module's documentation.
* *
* Parameters should be named X_public where X is the name of the * Parameters should be named X_public where X is the name of the
* corresponding input parameter. * corresponding input parameter.