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Changelog for safer constant-time
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Dave Rodgman 2023-09-12 10:59:14 +01:00 committed by GitHub
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Security
* Updates to constant-time C code so that compilers are less likely to use
conditional instructions, which can have an observable difference in
timing. (Clang has been seen to do this.) Also introduce assembly
implementations for 32- and 64-bit Arm and for x86 and x86-64, which are
guaranteed not to use conditional instructions.