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authorLinus Torvalds <torvalds@linux-foundation.org>2019-05-06 20:15:06 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-05-06 20:15:06 -0700
commit81ff5d2cba4f86cd850b9ee4a530cd221ee45aa3 (patch)
tree532847c0823dc864e3aa9da6cde863e48157eafa /crypto/asymmetric_keys/x509_cert_parser.c
parent7aefd944f038c7469571adb37769cb6f3924ecfa (diff)
parente59f755ceb6d6f39f90899d2a4e39c3e05837e12 (diff)
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto update from Herbert Xu: "API: - Add support for AEAD in simd - Add fuzz testing to testmgr - Add panic_on_fail module parameter to testmgr - Use per-CPU struct instead multiple variables in scompress - Change verify API for akcipher Algorithms: - Convert x86 AEAD algorithms over to simd - Forbid 2-key 3DES in FIPS mode - Add EC-RDSA (GOST 34.10) algorithm Drivers: - Set output IV with ctr-aes in crypto4xx - Set output IV in rockchip - Fix potential length overflow with hashing in sun4i-ss - Fix computation error with ctr in vmx - Add SM4 protected keys support in ccree - Remove long-broken mxc-scc driver - Add rfc4106(gcm(aes)) cipher support in cavium/nitrox" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (179 commits) crypto: ccree - use a proper le32 type for le32 val crypto: ccree - remove set but not used variable 'du_size' crypto: ccree - Make cc_sec_disable static crypto: ccree - fix spelling mistake "protedcted" -> "protected" crypto: caam/qi2 - generate hash keys in-place crypto: caam/qi2 - fix DMA mapping of stack memory crypto: caam/qi2 - fix zero-length buffer DMA mapping crypto: stm32/cryp - update to return iv_out crypto: stm32/cryp - remove request mutex protection crypto: stm32/cryp - add weak key check for DES crypto: atmel - remove set but not used variable 'alg_name' crypto: picoxcell - Use dev_get_drvdata() crypto: crypto4xx - get rid of redundant using_sd variable crypto: crypto4xx - use sync skcipher for fallback crypto: crypto4xx - fix cfb and ofb "overran dst buffer" issues crypto: crypto4xx - fix ctr-aes missing output IV crypto: ecrdsa - select ASN1 and OID_REGISTRY for EC-RDSA crypto: ux500 - use ccflags-y instead of CFLAGS_<basename>.o crypto: ccree - handle tee fips error during power management resume crypto: ccree - add function to handle cryptocell tee fips error ...
Diffstat (limited to 'crypto/asymmetric_keys/x509_cert_parser.c')
-rw-r--r--crypto/asymmetric_keys/x509_cert_parser.c57
1 files changed, 53 insertions, 4 deletions
diff --git a/crypto/asymmetric_keys/x509_cert_parser.c b/crypto/asymmetric_keys/x509_cert_parser.c
index 991f4d735a4e..5b7bfd95c334 100644
--- a/crypto/asymmetric_keys/x509_cert_parser.c
+++ b/crypto/asymmetric_keys/x509_cert_parser.c
@@ -26,6 +26,9 @@ struct x509_parse_context {
const void *cert_start; /* Start of cert content */
const void *key; /* Key data */
size_t key_size; /* Size of key data */
+ const void *params; /* Key parameters */
+ size_t params_size; /* Size of key parameters */
+ enum OID key_algo; /* Public key algorithm */
enum OID last_oid; /* Last OID encountered */
enum OID algo_oid; /* Algorithm OID */
unsigned char nr_mpi; /* Number of MPIs stored */
@@ -109,6 +112,13 @@ struct x509_certificate *x509_cert_parse(const void *data, size_t datalen)
cert->pub->keylen = ctx->key_size;
+ cert->pub->params = kmemdup(ctx->params, ctx->params_size, GFP_KERNEL);
+ if (!cert->pub->params)
+ goto error_decode;
+
+ cert->pub->paramlen = ctx->params_size;
+ cert->pub->algo = ctx->key_algo;
+
/* Grab the signature bits */
ret = x509_get_sig_params(cert);
if (ret < 0)
@@ -220,6 +230,14 @@ int x509_note_pkey_algo(void *context, size_t hdrlen,
case OID_sha224WithRSAEncryption:
ctx->cert->sig->hash_algo = "sha224";
goto rsa_pkcs1;
+
+ case OID_gost2012Signature256:
+ ctx->cert->sig->hash_algo = "streebog256";
+ goto ecrdsa;
+
+ case OID_gost2012Signature512:
+ ctx->cert->sig->hash_algo = "streebog512";
+ goto ecrdsa;
}
rsa_pkcs1:
@@ -227,6 +245,11 @@ rsa_pkcs1:
ctx->cert->sig->encoding = "pkcs1";
ctx->algo_oid = ctx->last_oid;
return 0;
+ecrdsa:
+ ctx->cert->sig->pkey_algo = "ecrdsa";
+ ctx->cert->sig->encoding = "raw";
+ ctx->algo_oid = ctx->last_oid;
+ return 0;
}
/*
@@ -246,7 +269,8 @@ int x509_note_signature(void *context, size_t hdrlen,
return -EINVAL;
}
- if (strcmp(ctx->cert->sig->pkey_algo, "rsa") == 0) {
+ if (strcmp(ctx->cert->sig->pkey_algo, "rsa") == 0 ||
+ strcmp(ctx->cert->sig->pkey_algo, "ecrdsa") == 0) {
/* Discard the BIT STRING metadata */
if (vlen < 1 || *(const u8 *)value != 0)
return -EBADMSG;
@@ -401,6 +425,27 @@ int x509_note_subject(void *context, size_t hdrlen,
}
/*
+ * Extract the parameters for the public key
+ */
+int x509_note_params(void *context, size_t hdrlen,
+ unsigned char tag,
+ const void *value, size_t vlen)
+{
+ struct x509_parse_context *ctx = context;
+
+ /*
+ * AlgorithmIdentifier is used three times in the x509, we should skip
+ * first and ignore third, using second one which is after subject and
+ * before subjectPublicKey.
+ */
+ if (!ctx->cert->raw_subject || ctx->key)
+ return 0;
+ ctx->params = value - hdrlen;
+ ctx->params_size = vlen + hdrlen;
+ return 0;
+}
+
+/*
* Extract the data for the public key algorithm
*/
int x509_extract_key_data(void *context, size_t hdrlen,
@@ -409,11 +454,15 @@ int x509_extract_key_data(void *context, size_t hdrlen,
{
struct x509_parse_context *ctx = context;
- if (ctx->last_oid != OID_rsaEncryption)
+ ctx->key_algo = ctx->last_oid;
+ if (ctx->last_oid == OID_rsaEncryption)
+ ctx->cert->pub->pkey_algo = "rsa";
+ else if (ctx->last_oid == OID_gost2012PKey256 ||
+ ctx->last_oid == OID_gost2012PKey512)
+ ctx->cert->pub->pkey_algo = "ecrdsa";
+ else
return -ENOPKG;
- ctx->cert->pub->pkey_algo = "rsa";
-
/* Discard the BIT STRING metadata */
if (vlen < 1 || *(const u8 *)value != 0)
return -EBADMSG;