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| author | Martin Willi <martin@revosec.ch> | 2015-04-14 11:57:17 +0200 |
|---|---|---|
| committer | Martin Willi <martin@revosec.ch> | 2015-04-14 12:02:51 +0200 |
| commit | aa9b74931f4639628b369ffb290721f5ec263f69 (patch) | |
| tree | b46293e2993cf75e44888b1bd8ef73d0e97e797e /src/libstrongswan/utils/utils.h | |
| parent | b17f0beda805a8096de6a381a4845711a64a500e (diff) | |
| parent | 161a015782dbd7acf291f621d50cde24a6ed813d (diff) | |
| download | strongswan-aa9b74931f4639628b369ffb290721f5ec263f69.tar.bz2 strongswan-aa9b74931f4639628b369ffb290721f5ec263f69.tar.xz | |
Merge branch 'const-memeq'
Introduce constant time memory comparing functions for cryptographic purposes,
and a tool to test such functions or crypto transforms relying on them.
Diffstat (limited to 'src/libstrongswan/utils/utils.h')
| -rw-r--r-- | src/libstrongswan/utils/utils.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/libstrongswan/utils/utils.h b/src/libstrongswan/utils/utils.h index 7c48d949f..2675acae8 100644 --- a/src/libstrongswan/utils/utils.h +++ b/src/libstrongswan/utils/utils.h @@ -185,6 +185,11 @@ static inline bool memeq(const void *x, const void *y, size_t len) } /** + * Same as memeq(), but with a constant runtime, safe for cryptographic use. + */ +bool memeq_const(const void *x, const void *y, size_t len); + +/** * Calling memcpy() with NULL pointers, even with n == 0, results in undefined * behavior according to the C standard. This version is guaranteed to not * access the pointers if n is 0. |