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crypto: geniv - use memcpy_sglist() instead of null skcipher

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For copying data between two scatterlists, just use memcpy_sglist()
instead of the so-called "null skcipher".  This is much simpler.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Eric Biggers
2025-05-05 12:10:41 -07:00
committed by Herbert Xu
parent 4e39d0712e
commit d8aeec147a
5 changed files with 7 additions and 43 deletions
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17
crypto/seqiv.c
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@@ -64,20 +64,9 @@ static int seqiv_aead_encrypt(struct aead_request *req)
data = req->base.data;
info = req->iv;
if (req->src != req->dst) {
SYNC_SKCIPHER_REQUEST_ON_STACK(nreq, ctx->sknull);
skcipher_request_set_sync_tfm(nreq, ctx->sknull);
skcipher_request_set_callback(nreq, req->base.flags,
NULL, NULL);
skcipher_request_set_crypt(nreq, req->src, req->dst,
req->assoclen + req->cryptlen,
NULL);
err = crypto_skcipher_encrypt(nreq);
if (err)
return err;
}
if (req->src != req->dst)
memcpy_sglist(req->dst, req->src,
req->assoclen + req->cryptlen);
if (unlikely(!IS_ALIGNED((unsigned long)info,
crypto_aead_alignmask(geniv) + 1))) {