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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2008-07-30 16:23:51 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2008-08-13 20:08:36 +1000 |
| commit | f176e632efad33aeb2d3c5ddfa86861c0d60553c (patch) | |
| tree | 23da81862b250c2b063ec6b120b1ae3e9d6e5e9b /crypto/tcrypt.c | |
| parent | f3c85bc1bc72b4cc8d58664a490a9d42bdb6565a (diff) | |
| download | linux-f176e632efad33aeb2d3c5ddfa86861c0d60553c.tar.gz linux-f176e632efad33aeb2d3c5ddfa86861c0d60553c.tar.bz2 linux-f176e632efad33aeb2d3c5ddfa86861c0d60553c.zip | |
crypto: tcrypt - Fix AEAD chunk testing
My changeset 4b22f0ddb6564210c9ded7ba25b2a1007733e784
crypto: tcrpyt - Remove unnecessary kmap/kunmap calls
introduced a typo that broke AEAD chunk testing. In particular,
axbuf should really be xbuf.
There is also an issue with testing the last segment when encrypting.
The additional part produced by AEAD wasn't tested. Similarly, on
decryption the additional part of the AEAD input is mistaken for
corruption.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/tcrypt.c')
| -rw-r--r-- | crypto/tcrypt.c | 28 |
1 files changed, 19 insertions, 9 deletions
diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c index 59821a22d752..66368022e0bf 100644 --- a/crypto/tcrypt.c +++ b/crypto/tcrypt.c @@ -481,21 +481,31 @@ next_one: for (k = 0, temp = 0; k < template[i].np; k++) { printk(KERN_INFO "page %u\n", k); - q = &axbuf[IDX[k]]; - hexdump(q, template[i].tap[k]); + q = &xbuf[IDX[k]]; + + n = template[i].tap[k]; + if (k == template[i].np - 1) + n += enc ? authsize : -authsize; + hexdump(q, n); printk(KERN_INFO "%s\n", - memcmp(q, template[i].result + temp, - template[i].tap[k] - - (k < template[i].np - 1 || enc ? - 0 : authsize)) ? + memcmp(q, template[i].result + temp, n) ? "fail" : "pass"); - for (n = 0; q[template[i].tap[k] + n]; n++) - ; + q += n; + if (k == template[i].np - 1 && !enc) { + if (memcmp(q, template[i].input + + temp + n, authsize)) + n = authsize; + else + n = 0; + } else { + for (n = 0; q[n]; n++) + ; + } if (n) { printk("Result buffer corruption %u " "bytes:\n", n); - hexdump(&q[template[i].tap[k]], n); + hexdump(q, n); } temp += template[i].tap[k]; |