Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto updates from Herbert Xu:
 "API:

   - crypto_destroy_tfm now ignores errors as well as NULL pointers

  Algorithms:

   - Add explicit curve IDs in ECDH algorithm names

   - Add NIST P384 curve parameters

   - Add ECDSA

  Drivers:

   - Add support for Green Sardine in ccp

   - Add ecdh/curve25519 to hisilicon/hpre

   - Add support for AM64 in sa2ul"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (184 commits)
  fsverity: relax build time dependency on CRYPTO_SHA256
  fscrypt: relax Kconfig dependencies for crypto API algorithms
  crypto: camellia - drop duplicate "depends on CRYPTO"
  crypto: s5p-sss - consistently use local 'dev' variable in probe()
  crypto: s5p-sss - remove unneeded local variable initialization
  crypto: s5p-sss - simplify getting of_device_id match data
  ccp: ccp - add support for Green Sardine
  crypto: ccp - Make ccp_dev_suspend and ccp_dev_resume void functions
  crypto: octeontx2 - add support for OcteonTX2 98xx CPT block.
  crypto: chelsio/chcr - Remove useless MODULE_VERSION
  crypto: ux500/cryp - Remove duplicate argument
  crypto: chelsio - remove unused function
  crypto: sa2ul - Add support for AM64
  crypto: sa2ul - Support for per channel coherency
  dt-bindings: crypto: ti,sa2ul: Add new compatible for AM64
  crypto: hisilicon - enable new error types for QM
  crypto: hisilicon - add new error type for SEC
  crypto: hisilicon - support new error types for ZIP
  crypto: hisilicon - dynamic configuration 'err_info'
  crypto: doc - fix kernel-doc notation in chacha.c and af_alg.c
  ...

1 files changed, 14 insertions, 16 deletions

diff --git a/security/integrity/digsig_asymmetric.c b/security/integrity/digsig_asymmetric.c
index a662024b4c70..23240d793b07 100644
--- a/security/integrity/digsig_asymmetric.c
+++ b/security/integrity/digsig_asymmetric.c
@@ -84,6 +84,7 @@ int asymmetric_verify(struct key *keyring, const char *sig,
 {
 	struct public_key_signature pks;
 	struct signature_v2_hdr *hdr = (struct signature_v2_hdr *)sig;
+	const struct public_key *pk;
 	struct key *key;
 	int ret;
 
@@ -105,23 +106,20 @@ int asymmetric_verify(struct key *keyring, const char *sig,
 	memset(&pks, 0, sizeof(pks));
 
 	pks.hash_algo = hash_algo_name[hdr->hash_algo];
-	switch (hdr->hash_algo) {
-	case HASH_ALGO_STREEBOG_256:
-	case HASH_ALGO_STREEBOG_512:
-		/* EC-RDSA and Streebog should go together. */
-		pks.pkey_algo = "ecrdsa";
-		pks.encoding = "raw";
-		break;
-	case HASH_ALGO_SM3_256:
-		/* SM2 and SM3 should go together. */
-		pks.pkey_algo = "sm2";
-		pks.encoding = "raw";
-		break;
-	default:
-		pks.pkey_algo = "rsa";
+
+	pk = asymmetric_key_public_key(key);
+	pks.pkey_algo = pk->pkey_algo;
+	if (!strcmp(pk->pkey_algo, "rsa"))
 		pks.encoding = "pkcs1";
-		break;
-	}
+	else if (!strncmp(pk->pkey_algo, "ecdsa-", 6))
+		/* edcsa-nist-p192 etc. */
+		pks.encoding = "x962";
+	else if (!strcmp(pk->pkey_algo, "ecrdsa") ||
+		   !strcmp(pk->pkey_algo, "sm2"))
+		pks.encoding = "raw";
+	else
+		return -ENOPKG;
+
 	pks.digest = (u8 *)data;
 	pks.digest_size = datalen;
 	pks.s = hdr->sig;