Hi Fabio, On Wed, May 15, 2019 at 10:17:19AM -0300, Fabio Estevam wrote: > Hi Sascha, > > On Wed, May 15, 2019 at 10:09 AM Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> wrote: > > > > Hi, > > > > ctr(aes) is broken in current kernel (v5.1+). It may have been broken > > for longer, but the crypto tests now check for a correct output IV. The > > testmgr answers with: > > > > alg: skcipher: ctr-aes-caam encryption test failed (wrong output IV) on test vector 0, cfg="in-place" > > > > output IV is this, which is the last 16 bytes of the encrypted message: > > 00000000: 1e 03 1d da 2f be 03 d1 79 21 70 a0 f3 00 9c ee > > > > It should look like this instead, which is input IV + 4: > > 00000000: f0 f1 f2 f3 f4 f5 f6 f7 f8 f9 fa fb fc fd ff 03 > > > > I have no idea how to fix this as I don't know how to get the output IV > > back from the CAAM. Any ideas? > > Is this problem similar to this one? > https://www.mail-archive.com/linux-crypto@xxxxxxxxxxxxxxx/msg37512.html Different algo, different hardware, but yes, it seems to be the same type of failure. Sascha -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
