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authorHerbert Xu <herbert@gondor.apana.org.au>2008-07-30 16:23:51 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2008-08-13 20:08:36 +1000
commitf176e632efad33aeb2d3c5ddfa86861c0d60553c (patch)
tree23da81862b250c2b063ec6b120b1ae3e9d6e5e9b /crypto
parentf3c85bc1bc72b4cc8d58664a490a9d42bdb6565a (diff)
downloadlinux-linaro-f176e632efad33aeb2d3c5ddfa86861c0d60553c.tar.gz
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')
-rw-r--r--crypto/tcrypt.c28
1 files changed, 19 insertions, 9 deletions
diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index 59821a22d75..66368022e0b 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];