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authorTadeusz Struk <tadeusz.struk@intel.com>2015-10-08 18:26:55 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2015-10-14 16:23:16 +0200
commit22287b0b5988b603b5f0daa282c89aaf2b877313 (patch)
treec8a1d714f4184feafc2885ab4a2968451397da03 /crypto/rsa_helper.c
parentlib/mpi: Add mpi sgl helpers (diff)
downloadlinux-22287b0b5988b603b5f0daa282c89aaf2b877313.tar.xz
linux-22287b0b5988b603b5f0daa282c89aaf2b877313.zip
crypto: akcipher - Changes to asymmetric key API
Setkey function has been split into set_priv_key and set_pub_key. Akcipher requests takes sgl for src and dst instead of void *. Users of the API i.e. two existing RSA implementation and test mgr code have been updated accordingly. Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/rsa_helper.c')
-rw-r--r--crypto/rsa_helper.c42
1 files changed, 35 insertions, 7 deletions
diff --git a/crypto/rsa_helper.c b/crypto/rsa_helper.c
index 8d96ce969b44..d226f48d0907 100644
--- a/crypto/rsa_helper.c
+++ b/crypto/rsa_helper.c
@@ -15,7 +15,8 @@
#include <linux/err.h>
#include <linux/fips.h>
#include <crypto/internal/rsa.h>
-#include "rsakey-asn1.h"
+#include "rsapubkey-asn1.h"
+#include "rsaprivkey-asn1.h"
int rsa_get_n(void *context, size_t hdrlen, unsigned char tag,
const void *value, size_t vlen)
@@ -94,8 +95,8 @@ void rsa_free_key(struct rsa_key *key)
EXPORT_SYMBOL_GPL(rsa_free_key);
/**
- * rsa_parse_key() - extracts an rsa key from BER encoded buffer
- * and stores it in the provided struct rsa_key
+ * rsa_parse_pub_key() - extracts an rsa public key from BER encoded buffer
+ * and stores it in the provided struct rsa_key
*
* @rsa_key: struct rsa_key key representation
* @key: key in BER format
@@ -103,13 +104,13 @@ EXPORT_SYMBOL_GPL(rsa_free_key);
*
* Return: 0 on success or error code in case of error
*/
-int rsa_parse_key(struct rsa_key *rsa_key, const void *key,
- unsigned int key_len)
+int rsa_parse_pub_key(struct rsa_key *rsa_key, const void *key,
+ unsigned int key_len)
{
int ret;
free_mpis(rsa_key);
- ret = asn1_ber_decoder(&rsakey_decoder, rsa_key, key, key_len);
+ ret = asn1_ber_decoder(&rsapubkey_decoder, rsa_key, key, key_len);
if (ret < 0)
goto error;
@@ -118,4 +119,31 @@ error:
free_mpis(rsa_key);
return ret;
}
-EXPORT_SYMBOL_GPL(rsa_parse_key);
+EXPORT_SYMBOL_GPL(rsa_parse_pub_key);
+
+/**
+ * rsa_parse_pub_key() - extracts an rsa private key from BER encoded buffer
+ * and stores it in the provided struct rsa_key
+ *
+ * @rsa_key: struct rsa_key key representation
+ * @key: key in BER format
+ * @key_len: length of key
+ *
+ * Return: 0 on success or error code in case of error
+ */
+int rsa_parse_priv_key(struct rsa_key *rsa_key, const void *key,
+ unsigned int key_len)
+{
+ int ret;
+
+ free_mpis(rsa_key);
+ ret = asn1_ber_decoder(&rsaprivkey_decoder, rsa_key, key, key_len);
+ if (ret < 0)
+ goto error;
+
+ return 0;
+error:
+ free_mpis(rsa_key);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(rsa_parse_priv_key);