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authorEric Biggers <ebiggers@google.com>2019-10-25 22:41:12 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2019-11-01 08:38:32 +0300
commitc65058b7587fd3d001c57a50285477be521f5350 (patch)
tree2dbfbbedd874c0c15f65ab53238de22eef9012b1 /crypto/essiv.c
parent53253064adfab4681f53d09e2717dd155997a3dc (diff)
downloadlinux-c65058b7587fd3d001c57a50285477be521f5350.tar.xz
crypto: skcipher - remove the "blkcipher" algorithm type
Now that all "blkcipher" algorithms have been converted to "skcipher", remove the blkcipher algorithm type. The skcipher (symmetric key cipher) algorithm type was introduced a few years ago to replace both blkcipher and ablkcipher (synchronous and asynchronous block cipher). The advantages of skcipher include: - A much less confusing name, since none of these algorithm types have ever actually been for raw block ciphers, but rather for all length-preserving encryption modes including block cipher modes of operation, stream ciphers, and other length-preserving modes. - It unified blkcipher and ablkcipher into a single algorithm type which supports both synchronous and asynchronous implementations. Note, blkcipher already operated only on scatterlists, so the fact that skcipher does too isn't a regression in functionality. - Better type safety by using struct skcipher_alg, struct crypto_skcipher, etc. instead of crypto_alg, crypto_tfm, etc. - It sometimes simplifies the implementations of algorithms. Also, the blkcipher API was no longer being tested. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/essiv.c')
-rw-r--r--crypto/essiv.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/crypto/essiv.c b/crypto/essiv.c
index a8befc8fb06e..fc248de88590 100644
--- a/crypto/essiv.c
+++ b/crypto/essiv.c
@@ -486,7 +486,7 @@ static int essiv_create(struct crypto_template *tmpl, struct rtattr **tb)
type = algt->type & algt->mask;
switch (type) {
- case CRYPTO_ALG_TYPE_BLKCIPHER:
+ case CRYPTO_ALG_TYPE_SKCIPHER:
skcipher_inst = kzalloc(sizeof(*skcipher_inst) +
sizeof(*ictx), GFP_KERNEL);
if (!skcipher_inst)
@@ -586,7 +586,7 @@ static int essiv_create(struct crypto_template *tmpl, struct rtattr **tb)
base->cra_alignmask = block_base->cra_alignmask;
base->cra_priority = block_base->cra_priority;
- if (type == CRYPTO_ALG_TYPE_BLKCIPHER) {
+ if (type == CRYPTO_ALG_TYPE_SKCIPHER) {
skcipher_inst->alg.setkey = essiv_skcipher_setkey;
skcipher_inst->alg.encrypt = essiv_skcipher_encrypt;
skcipher_inst->alg.decrypt = essiv_skcipher_decrypt;
@@ -628,7 +628,7 @@ static int essiv_create(struct crypto_template *tmpl, struct rtattr **tb)
out_free_hash:
crypto_mod_put(_hash_alg);
out_drop_skcipher:
- if (type == CRYPTO_ALG_TYPE_BLKCIPHER)
+ if (type == CRYPTO_ALG_TYPE_SKCIPHER)
crypto_drop_skcipher(&ictx->u.skcipher_spawn);
else
crypto_drop_aead(&ictx->u.aead_spawn);