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