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authorSalvatore Benedetto <salvatore.benedetto@intel.com>2016-07-04 17:21:38 +0100
committerHerbert Xu <herbert@gondor.apana.org.au>2016-07-05 23:05:26 +0800
commit8be0b84e58a9b07c314f920792926c5c5a53d3da (patch)
treec75ddebfc0ea68a3cd05bc8bbf2dc2b85bdfb462 /crypto
parente24860f2a6b50eb09f3a627e168433005798f8d9 (diff)
downloadlinux-0-day-8be0b84e58a9b07c314f920792926c5c5a53d3da.tar.gz
linux-0-day-8be0b84e58a9b07c314f920792926c5c5a53d3da.tar.xz
crypto: rsa - Store rest of the private key components
When parsing a private key, store all non-optional fields. These are required for enabling CRT mode for decrypt and verify Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/rsa_helper.c75
-rw-r--r--crypto/rsaprivkey.asn110
2 files changed, 80 insertions, 5 deletions
diff --git a/crypto/rsa_helper.c b/crypto/rsa_helper.c
index 583656af4fe28..4df6451e75436 100644
--- a/crypto/rsa_helper.c
+++ b/crypto/rsa_helper.c
@@ -78,6 +78,81 @@ int rsa_get_d(void *context, size_t hdrlen, unsigned char tag,
return 0;
}
+int rsa_get_p(void *context, size_t hdrlen, unsigned char tag,
+ const void *value, size_t vlen)
+{
+ struct rsa_key *key = context;
+
+ /* invalid key provided */
+ if (!value || !vlen || vlen > key->n_sz)
+ return -EINVAL;
+
+ key->p = value;
+ key->p_sz = vlen;
+
+ return 0;
+}
+
+int rsa_get_q(void *context, size_t hdrlen, unsigned char tag,
+ const void *value, size_t vlen)
+{
+ struct rsa_key *key = context;
+
+ /* invalid key provided */
+ if (!value || !vlen || vlen > key->n_sz)
+ return -EINVAL;
+
+ key->q = value;
+ key->q_sz = vlen;
+
+ return 0;
+}
+
+int rsa_get_dp(void *context, size_t hdrlen, unsigned char tag,
+ const void *value, size_t vlen)
+{
+ struct rsa_key *key = context;
+
+ /* invalid key provided */
+ if (!value || !vlen || vlen > key->n_sz)
+ return -EINVAL;
+
+ key->dp = value;
+ key->dp_sz = vlen;
+
+ return 0;
+}
+
+int rsa_get_dq(void *context, size_t hdrlen, unsigned char tag,
+ const void *value, size_t vlen)
+{
+ struct rsa_key *key = context;
+
+ /* invalid key provided */
+ if (!value || !vlen || vlen > key->n_sz)
+ return -EINVAL;
+
+ key->dq = value;
+ key->dq_sz = vlen;
+
+ return 0;
+}
+
+int rsa_get_qinv(void *context, size_t hdrlen, unsigned char tag,
+ const void *value, size_t vlen)
+{
+ struct rsa_key *key = context;
+
+ /* invalid key provided */
+ if (!value || !vlen || vlen > key->n_sz)
+ return -EINVAL;
+
+ key->qinv = value;
+ key->qinv_sz = vlen;
+
+ return 0;
+}
+
/**
* rsa_parse_pub_key() - decodes the BER encoded buffer and stores in the
* provided struct rsa_key, pointers to the raw key as is,
diff --git a/crypto/rsaprivkey.asn1 b/crypto/rsaprivkey.asn1
index 731aea5edb0cb..4ce06758e8af7 100644
--- a/crypto/rsaprivkey.asn1
+++ b/crypto/rsaprivkey.asn1
@@ -3,9 +3,9 @@ RsaPrivKey ::= SEQUENCE {
n INTEGER ({ rsa_get_n }),
e INTEGER ({ rsa_get_e }),
d INTEGER ({ rsa_get_d }),
- prime1 INTEGER,
- prime2 INTEGER,
- exponent1 INTEGER,
- exponent2 INTEGER,
- coefficient INTEGER
+ prime1 INTEGER ({ rsa_get_p }),
+ prime2 INTEGER ({ rsa_get_q }),
+ exponent1 INTEGER ({ rsa_get_dp }),
+ exponent2 INTEGER ({ rsa_get_dq }),
+ coefficient INTEGER ({ rsa_get_qinv })
}