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Docs update

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Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
This commit is contained in:
Dave Rodgman 2023-05-13 12:12:02 +01:00
parent 1ab0b48ac3
commit f27727b22e
1 changed files with 7 additions and 6 deletions
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13
library/constant_time_internal.h
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@ -36,10 +36,10 @@
*
* It has three main parts:
*
* - boolean operations (and a few non-boolean operations)
* - boolean operations
* These are all named mbedtls_ct_bool_<operation>, and operate over
* mbedtls_ct_condition_t.
* All arguments to these operations are considered secret.
* All arguments are considered secret.
* example: bool x = y | z => x = mbedtls_ct_bool_or(y, z)
*
* - conditional data selection
@ -62,10 +62,11 @@
* to/from "unsigned int", "size_t", and "mbedtls_mpi_uint" (and any other
* not-larger integer types).
*
* For Arm (32-bit, 64-bit and Thumb), assembly implementations are used
* to ensure that the generated code is constant time. For other architectures,
* a plain C fallback designed to yield constant-time code (this has been
* observed to be constant-time on latest gcc, clang and MSVC as of May 2023).
* For Arm (32-bit, 64-bit and Thumb), x86 and x86-64, assembly implementations
* are used to ensure that the generated code is constant time. For other
* architectures, a plain C fallback designed to yield constant-time code (this
* has been observed to be constant-time on latest gcc, clang and MSVC as of
* May 2023).
*/
#if (SIZE_MAX > 0xffffffffffffffffULL)