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| author | Alex Gaynor <alex.gaynor@gmail.com> | 2014-02-04 17:16:37 -0800 |
|---|---|---|
| committer | Alex Gaynor <alex.gaynor@gmail.com> | 2014-02-04 17:16:37 -0800 |
| commit | ae9451f145b1850ac6d0fd4891932f24c49c3c21 (patch) | |
| tree | 54547a6665adbaf4e67aa78ff9b4ca0535cef707 /docs/hazmat/primitives | |
| parent | 6781094003b86c0a6997452876ae63acd49809e1 (diff) | |
| download | cryptography-ae9451f145b1850ac6d0fd4891932f24c49c3c21.tar.gz cryptography-ae9451f145b1850ac6d0fd4891932f24c49c3c21.tar.bz2 cryptography-ae9451f145b1850ac6d0fd4891932f24c49c3c21.zip | |
More clearly describe the behavior of constant_time.bytes_eq
Diffstat (limited to 'docs/hazmat/primitives')
| -rw-r--r-- | docs/hazmat/primitives/constant-time.rst | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/docs/hazmat/primitives/constant-time.rst b/docs/hazmat/primitives/constant-time.rst index 632e7c68..7924efca 100644 --- a/docs/hazmat/primitives/constant-time.rst +++ b/docs/hazmat/primitives/constant-time.rst @@ -19,8 +19,10 @@ about the timing attacks on KeyCzar and Java's ``MessageDigest.isEqual()``. .. function:: bytes_eq(a, b) - Compare ``a`` and ``b`` to one another in constant time if they are of the - same length. + Compares ``a`` and ``b`` with one another. If ``a`` and ``b`` have + different lengths, this returns ``False`` immediately. Otherwise it + compares them in a way that takes the same amount of time, regardless of + how many characters are the same between the two. .. doctest:: |