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crypto: eseqiv - Fix IV generation for sync algorithms

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If crypto_ablkcipher_encrypt() returns synchronous,
eseqiv_complete2() is called even if req->giv is already the
pointer to the generated IV. The generated IV is overwritten
with some random data in this case. This patch fixes this by
calling eseqiv_complete2() just if the generated IV has to be
copied to req->giv.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Steffen Klassert 2009-04-15 20:45:03 +08:00 committed by Herbert Xu
parent 295c01f90d
commit abe5fa7899
1 changed files with 2 additions and 1 deletions
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3
crypto/eseqiv.c
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@ -153,7 +153,8 @@ static int eseqiv_givencrypt(struct skcipher_givcrypt_request *req)
if (err)
goto out;
eseqiv_complete2(req);
if (giv != req->giv)
eseqiv_complete2(req);
out:
return err;