Re: [PATCH v2] crypto: XTS - remove test that will fail in FIPS mode

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Hi Stephan,

Yes, can you give me some more detail about your findings on dracut-fips
!? This seems to be the major difference between our test environments
where a bunch of algorithms are failing self-test during boot with fips=1.

Thanks
-Tapas


On 8/16/16, 4:38 AM, "Stephan Mueller" <smueller@xxxxxxxxxx> wrote:

>Hi Tapas,
>
>I was able to reproduce the issue now.
>
>I tested the patch below and it works for me now. Yet, I see that
>dracut-fips seems to need some fixes too as it cannot find cmac when
>compiled as module and has some issues with the authenc() ciphers too.
>
>
>---8<---
>
>In FIPS mode, setting XTS keys where the AES key is identical to the
>tweak key is forbidden. Thus, the self test with such property will fail
>in FIPS mode.
>
>As we have other tests available for XTS, this patch simply removes the
>offending test vectors.
>
>Reported-by: Tapas Sarangi <TSarangi@xxxxxxxxxxxxx>
>Signed-off-by: Stephan Mueller <stephan.mueller@xxxxxxxxx>
>---
> crypto/testmgr.h | 44 ++++----------------------------------------
> 1 file changed, 4 insertions(+), 40 deletions(-)
>
>diff --git a/crypto/testmgr.h b/crypto/testmgr.h
>index acb6bbf..893b321 100644
>--- a/crypto/testmgr.h
>+++ b/crypto/testmgr.h
>@@ -15179,8 +15179,8 @@ static struct cipher_testvec
>cast6_xts_dec_tv_template[] = {
> #define HMAC_SHA512_AES_CBC_ENC_TEST_VEC 7
> #define AES_LRW_ENC_TEST_VECTORS 8
> #define AES_LRW_DEC_TEST_VECTORS 8
>-#define AES_XTS_ENC_TEST_VECTORS 5
>-#define AES_XTS_DEC_TEST_VECTORS 5
>+#define AES_XTS_ENC_TEST_VECTORS 4
>+#define AES_XTS_DEC_TEST_VECTORS 4
> #define AES_CTR_ENC_TEST_VECTORS 5
> #define AES_CTR_DEC_TEST_VECTORS 5
> #define AES_OFB_ENC_TEST_VECTORS 1
>@@ -18218,25 +18218,7 @@ static struct cipher_testvec
>aes_lrw_dec_tv_template[] = {
>
> static struct cipher_testvec aes_xts_enc_tv_template[] = {
>       /*
>http://scanmail.trustwave.com/?c=4062&d=-96y1wXsB1ZUProHtkc64VYvnNekxXtLFt
>hU_sfSVw&s=5&u=http%3a%2f%2fgrouper%2eieee%2eorg%2fgroups%2f1619%2femail%2
>fpdf00086%2epdf */
>-      { /* XTS-AES 1 */
>-              .key    = "\x00\x00\x00\x00\x00\x00\x00\x00"
>-                        "\x00\x00\x00\x00\x00\x00\x00\x00"
>-                        "\x00\x00\x00\x00\x00\x00\x00\x00"
>-                        "\x00\x00\x00\x00\x00\x00\x00\x00",
>-              .klen   = 32,
>-              .iv     = "\x00\x00\x00\x00\x00\x00\x00\x00"
>-                        "\x00\x00\x00\x00\x00\x00\x00\x00",
>-              .input  = "\x00\x00\x00\x00\x00\x00\x00\x00"
>-                        "\x00\x00\x00\x00\x00\x00\x00\x00"
>-                        "\x00\x00\x00\x00\x00\x00\x00\x00"
>-                        "\x00\x00\x00\x00\x00\x00\x00\x00",
>-              .ilen   = 32,
>-              .result = "\x91\x7c\xf6\x9e\xbd\x68\xb2\xec"
>-                        "\x9b\x9f\xe9\xa3\xea\xdd\xa6\x92"
>-                        "\xcd\x43\xd2\xf5\x95\x98\xed\x85"
>-                        "\x8c\x02\xc2\x65\x2f\xbf\x92\x2e",
>-              .rlen   = 32,
>-      }, { /* XTS-AES 2 */
>+      { /* XTS-AES 2 */
>               .key    = "\x11\x11\x11\x11\x11\x11\x11\x11"
>                         "\x11\x11\x11\x11\x11\x11\x11\x11"
>                         "\x22\x22\x22\x22\x22\x22\x22\x22"
>@@ -18560,25 +18542,7 @@ static struct cipher_testvec
>aes_xts_enc_tv_template[] = {
>
> static struct cipher_testvec aes_xts_dec_tv_template[] = {
>       /*
>http://scanmail.trustwave.com/?c=4062&d=-96y1wXsB1ZUProHtkc64VYvnNekxXtLFt
>hU_sfSVw&s=5&u=http%3a%2f%2fgrouper%2eieee%2eorg%2fgroups%2f1619%2femail%2
>fpdf00086%2epdf */
>-      { /* XTS-AES 1 */
>-              .key    = "\x00\x00\x00\x00\x00\x00\x00\x00"
>-                        "\x00\x00\x00\x00\x00\x00\x00\x00"
>-                        "\x00\x00\x00\x00\x00\x00\x00\x00"
>-                        "\x00\x00\x00\x00\x00\x00\x00\x00",
>-              .klen   = 32,
>-              .iv     = "\x00\x00\x00\x00\x00\x00\x00\x00"
>-                        "\x00\x00\x00\x00\x00\x00\x00\x00",
>-              .input = "\x91\x7c\xf6\x9e\xbd\x68\xb2\xec"
>-                       "\x9b\x9f\xe9\xa3\xea\xdd\xa6\x92"
>-                       "\xcd\x43\xd2\xf5\x95\x98\xed\x85"
>-                       "\x8c\x02\xc2\x65\x2f\xbf\x92\x2e",
>-              .ilen   = 32,
>-              .result  = "\x00\x00\x00\x00\x00\x00\x00\x00"
>-                         "\x00\x00\x00\x00\x00\x00\x00\x00"
>-                         "\x00\x00\x00\x00\x00\x00\x00\x00"
>-                         "\x00\x00\x00\x00\x00\x00\x00\x00",
>-              .rlen   = 32,
>-      }, { /* XTS-AES 2 */
>+      { /* XTS-AES 2 */
>               .key    = "\x11\x11\x11\x11\x11\x11\x11\x11"
>                         "\x11\x11\x11\x11\x11\x11\x11\x11"
>                         "\x22\x22\x22\x22\x22\x22\x22\x22"
>--
>2.7.4
>
>


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