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crypto: skcipher - remove remnants of internal IV generators

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Remove dead code related to internal IV generators, which are no longer
used since they've been replaced with the "seqiv" and "echainiv"
templates.  The removed code includes:

- The "givcipher" (GIVCIPHER) algorithm type.  No algorithms are
  registered with this type anymore, so it's unneeded.

- The "const char *geniv" member of aead_alg, ablkcipher_alg, and
  blkcipher_alg.  A few algorithms still set this, but it isn't used
  anymore except to show via /proc/crypto and CRYPTO_MSG_GETALG.
  Just hardcode "<default>" or "<none>" in those cases.

- The 'skcipher_givcrypt_request' structure, which is never used.

Signed-off-by: Eric Biggers <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
This commit is contained in:
Eric Biggers 2018-12-16 15:55:06 -08:00 • committed by Herbert Xu
commit c79b411eaa
18 changed files with 17 additions and 182 deletions
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6
crypto/blkcipher.c
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@ -510,8 +510,7 @@ static int crypto_blkcipher_report(struct sk_buff *skb, struct crypto_alg *alg)
memset(&rblkcipher, 0, sizeof(rblkcipher));
strscpy(rblkcipher.type, "blkcipher", sizeof(rblkcipher.type));
strscpy(rblkcipher.geniv, alg->cra_blkcipher.geniv ?: "<default>",
sizeof(rblkcipher.geniv));
strscpy(rblkcipher.geniv, "<default>", sizeof(rblkcipher.geniv));
rblkcipher.blocksize = alg->cra_blocksize;
rblkcipher.min_keysize = alg->cra_blkcipher.min_keysize;
@ -537,8 +536,7 @@ static void crypto_blkcipher_show(struct seq_file *m, struct crypto_alg *alg)
seq_printf(m, "min keysize : %u\n", alg->cra_blkcipher.min_keysize);
seq_printf(m, "max keysize : %u\n", alg->cra_blkcipher.max_keysize);
seq_printf(m, "ivsize : %u\n", alg->cra_blkcipher.ivsize);
seq_printf(m, "geniv : %s\n", alg->cra_blkcipher.geniv ?:
"<default>");
seq_printf(m, "geniv : <default>\n");
}
const struct crypto_type crypto_blkcipher_type = {