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authorHerbert Xu <herbert@gondor.apana.org.au>2015-05-27 08:37:31 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2015-05-28 05:23:18 +0200
commit838c9d561aaae4bc3f4b44046ea08b048ecaffe7 (patch)
tree3479da9f199d9d64433f8fdda887431e315c2f00
parentcrypto: aead - Add common IV generation code (diff)
downloadlinux-838c9d561aaae4bc3f4b44046ea08b048ecaffe7.tar.xz
linux-838c9d561aaae4bc3f4b44046ea08b048ecaffe7.zip
crypto: echainiv - Copy AD along with plain text
As the AD does not necessarily exist in the destination buffer it must be copied along with the plain text. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--crypto/echainiv.c10
1 files changed, 2 insertions, 8 deletions
diff --git a/crypto/echainiv.c b/crypto/echainiv.c
index bd85dcc4fa3d..02d054300a9a 100644
--- a/crypto/echainiv.c
+++ b/crypto/echainiv.c
@@ -228,19 +228,13 @@ static int echainiv_encrypt(struct aead_request *req)
info = req->iv;
if (req->src != req->dst) {
- struct scatterlist src[2];
- struct scatterlist dst[2];
struct blkcipher_desc desc = {
.tfm = ctx->null,
};
err = crypto_blkcipher_encrypt(
- &desc,
- scatterwalk_ffwd(dst, req->dst,
- req->assoclen + ivsize),
- scatterwalk_ffwd(src, req->src,
- req->assoclen + ivsize),
- req->cryptlen - ivsize);
+ &desc, req->dst, req->src,
+ req->assoclen + req->cryptlen);
if (err)
return err;
}