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chore: Move memcmp test API doc to test memcmp test module

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Karolin Varner
2024-08-03 14:05:22 +02:00
parent 37f7b3e4e9
commit a4b8fc2226
1 changed files with 5 additions and 7 deletions
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12
constant-time/src/memcmp.rs
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@@ -7,18 +7,16 @@
///
/// The execution time of the function grows approx. linear with the length of the input. This is
/// considered safe.
///
/// ## Tests
/// [`tests::memcmp_runs_in_constant_time`] runs a stasticial test that the equality of the two
/// input parameters does not correlate with the run time.
///
/// For discussion on how to (further) ensure the constant-time execution of this function,
/// see <https://github.com/rosenpass/rosenpass/issues/232>
#[inline]
pub fn memcmp(a: &[u8], b: &[u8]) -> bool {
a.len() == b.len() && unsafe { memsec::memeq(a.as_ptr(), b.as_ptr(), a.len()) }
}
/// [tests::memcmp_runs_in_constant_time] runs a stasticial test that the equality of the two
/// input parameters does not correlate with the run time.
///
/// For discussion on how to (further) ensure the constant-time execution of this function,
/// see <https://github.com/rosenpass/rosenpass/issues/232>
#[cfg(all(test, feature = "constant_time_tests"))]
mod tests {
use super::*;