OpenBSD’s memcmp() performs the comparison character by character? http://openbsd.cs.toronto.edu/cgi-bin/cvsweb/src/lib/libc/string/memcmp.c?rev=1.4&content-type=text/x-cvsweb-markup … I know there is timingsafe_bcmp(), but still.
@mik235 Other implementations at least start by comparing in chunks of 4 or 8 bytes. Faster and still more difficult to exploit.
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