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| author | Martin Willi <martin@revosec.ch> | 2015-04-11 16:44:18 +0200 |
|---|---|---|
| committer | Martin Willi <martin@revosec.ch> | 2015-04-14 11:51:54 +0200 |
| commit | b833963270fbffe3186f5c71c7584c2347a44038 (patch) | |
| tree | 75e2d440ec3f27ca6f25b899c592e51258e21c26 /scripts/timeattack.c | |
| parent | 39e1ddec2ed3480e0edc07bbabfacbf907dc4e3f (diff) | |
| download | strongswan-b833963270fbffe3186f5c71c7584c2347a44038.tar.bz2 strongswan-b833963270fbffe3186f5c71c7584c2347a44038.tar.xz | |
utils: Add a constant time memeq() variant for cryptographic purposes
Diffstat (limited to 'scripts/timeattack.c')
| -rw-r--r-- | scripts/timeattack.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/scripts/timeattack.c b/scripts/timeattack.c index 0a53abae9..3d7ffee7d 100644 --- a/scripts/timeattack.c +++ b/scripts/timeattack.c @@ -196,6 +196,12 @@ CALLBACK(attack_memeq4, bool, return !m; } +CALLBACK(attack_memeq5, bool, + u_char *subj, u_char *data, size_t len) +{ + return memeq_const(subj, data, len); +} + static bool attack_memeq(char *name, u_int iterations, u_int distance) { struct { @@ -206,6 +212,7 @@ static bool attack_memeq(char *name, u_int iterations, u_int distance) { "memeq2", attack_memeq2 }, { "memeq3", attack_memeq3 }, { "memeq4", attack_memeq4 }, + { "memeq5", attack_memeq5 }, }; u_char exp[16]; int i; @@ -350,7 +357,7 @@ int main(int argc, char *argv[]) if (argc < 3) { fprintf(stderr, "usage: %s <attack> <iterations> <distance>\n", argv[0]); - fprintf(stderr, " <attack>: memeq[1-4] / aead / signer\n"); + fprintf(stderr, " <attack>: memeq[1-5] / aead / signer\n"); fprintf(stderr, " <iterations>: number of invocations * 1000\n"); fprintf(stderr, " <distance>: time difference in ns for a hit\n"); fprintf(stderr, " example: %s memeq1 100 500\n", argv[0]); |