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| author | Gilad Ben-Yossef <gilad@benyossef.com> | 2017-12-17 08:29:01 +0000 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-12-28 17:56:39 +1100 |
| commit | 4431bd49530c7379dffaf0963d69bdab7fbead05 (patch) | |
| tree | ac82c63e4c80d128014e87c958900fce512c2b66 /crypto | |
| parent | 7c3f13238992884abf3782dcc8e97e0862e5c23e (diff) | |
| download | linux-4431bd49530c7379dffaf0963d69bdab7fbead05.tar.gz linux-4431bd49530c7379dffaf0963d69bdab7fbead05.tar.bz2 linux-4431bd49530c7379dffaf0963d69bdab7fbead05.zip | |
crypto: tcrypt - fix AEAD decryption speed test
The AEAD speed test pretended to support decryption, however that support
was broken as decryption requires a valid auth field which the test did
not provide.
Fix this by running the encryption path once with inout/output sgls
switched to calculate the auth field prior to performing decryption
speed tests.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/tcrypt.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c index a0c4e0dbffa4..69c8e6392ffc 100644 --- a/crypto/tcrypt.c +++ b/crypto/tcrypt.c @@ -329,10 +329,30 @@ static void test_aead_speed(const char *algo, int enc, unsigned int secs, *b_size + (enc ? authsize : 0), assoc, aad_size); + aead_request_set_ad(req, aad_size); + + if (!enc) { + + /* + * For decryption we need a proper auth so + * we do the encryption path once with buffers + * reversed (input <-> output) to calculate it + */ + aead_request_set_crypt(req, sgout, sg, + *b_size, iv); + ret = do_one_aead_op(req, + crypto_aead_encrypt(req)); + + if (ret) { + pr_err("calculating auth failed failed (%d)\n", + ret); + break; + } + } + aead_request_set_crypt(req, sg, sgout, *b_size + (enc ? 0 : authsize), iv); - aead_request_set_ad(req, aad_size); if (secs) ret = test_aead_jiffies(req, enc, *b_size, @@ -1566,16 +1586,24 @@ static int do_test(const char *alg, u32 type, u32 mask, int m) NULL, 0, 16, 16, aead_speed_template_20); test_aead_speed("gcm(aes)", ENCRYPT, sec, NULL, 0, 16, 8, speed_template_16_24_32); + test_aead_speed("rfc4106(gcm(aes))", DECRYPT, sec, + NULL, 0, 16, 16, aead_speed_template_20); + test_aead_speed("gcm(aes)", DECRYPT, sec, + NULL, 0, 16, 8, speed_template_16_24_32); break; case 212: test_aead_speed("rfc4309(ccm(aes))", ENCRYPT, sec, NULL, 0, 16, 16, aead_speed_template_19); + test_aead_speed("rfc4309(ccm(aes))", DECRYPT, sec, + NULL, 0, 16, 16, aead_speed_template_19); break; case 213: test_aead_speed("rfc7539esp(chacha20,poly1305)", ENCRYPT, sec, NULL, 0, 16, 8, aead_speed_template_36); + test_aead_speed("rfc7539esp(chacha20,poly1305)", DECRYPT, sec, + NULL, 0, 16, 8, aead_speed_template_36); break; case 214: |