lkml.org 
[lkml]   [2003]   [Aug]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] loop: fixing cryptoloop troubles.
Fruhwirth Clemens writes:
> In loop_transfer_bio the initial vector has been computed only once. For any
> situation where more than one bio_vec is present the initial vector will be
> wrong. Here is the trivial but important fix.

Looks good, but:
- I doubt this could explain the alteration pattern (1 byte every 512).
- Corruption also occured with cipher_null (which ignores the IV).

I just noticed a related thread: http://lkml.org/lkml/2003/8/6/313
("Device-backed loop broken in 2.6.0-test2?")


A side note: Doesn't crypto/crypto_null.c need this fix ?:

static void null_encrypt(void *ctx, u8 *dst, const u8 *src)
-{ }
+{ memmove(dst, src, NULL_BLOCK_SIZE); }

static void null_decrypt(void *ctx, u8 *dst, const u8 *src)
-{ }
+{ memmove(dst, src, NULL_BLOCK_SIZE); }

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:47    [W:0.864 / U:1.840 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site