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authorSalvatore Benedetto <salvatore.benedetto@intel.com>2016-06-22 17:49:15 +0100
committerHerbert Xu <herbert@gondor.apana.org.au>2016-06-23 18:29:57 +0800
commit3c4b23901a0c766879dff680cd6bdab47bcdbbd2 (patch)
tree3bcc903dce759f69193f4b9fa638f1383d7323d3 /include
parent802c7f1c84e4b5a6ac78635878041023fc5831b1 (diff)
download96b-common-3c4b23901a0c766879dff680cd6bdab47bcdbbd2.tar.gz
crypto: ecdh - Add ECDH software support
* Implement ECDH under kpp API * Provide ECC software support for curve P-192 and P-256. * Add kpp test for ECDH with data generated by OpenSSL Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include')
-rw-r--r--include/crypto/ecdh.h30
-rw-r--r--include/crypto/kpp.h1
2 files changed, 31 insertions, 0 deletions
diff --git a/include/crypto/ecdh.h b/include/crypto/ecdh.h
new file mode 100644
index 000000000000..84bad548d194
--- /dev/null
+++ b/include/crypto/ecdh.h
@@ -0,0 +1,30 @@
+/*
+ * ECDH params to be used with kpp API
+ *
+ * Copyright (c) 2016, Intel Corporation
+ * Authors: Salvatore Benedetto <salvatore.benedetto@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ */
+#ifndef _CRYPTO_ECDH_
+#define _CRYPTO_ECDH_
+
+/* Curves IDs */
+#define ECC_CURVE_NIST_P192 0x0001
+#define ECC_CURVE_NIST_P256 0x0002
+
+struct ecdh {
+ unsigned short curve_id;
+ char *key;
+ unsigned short key_size;
+};
+
+int crypto_ecdh_key_len(const struct ecdh *params);
+int crypto_ecdh_encode_key(char *buf, unsigned int len, const struct ecdh *p);
+int crypto_ecdh_decode_key(const char *buf, unsigned int len, struct ecdh *p);
+
+#endif
diff --git a/include/crypto/kpp.h b/include/crypto/kpp.h
index 937ac122354a..30791f75c180 100644
--- a/include/crypto/kpp.h
+++ b/include/crypto/kpp.h
@@ -243,6 +243,7 @@ static inline void kpp_request_set_output(struct kpp_request *req,
enum {
CRYPTO_KPP_SECRET_TYPE_UNKNOWN,
CRYPTO_KPP_SECRET_TYPE_DH,
+ CRYPTO_KPP_SECRET_TYPE_ECDH,
};
/**