Diff: wolfssl/wolfcrypt/ed25519.h

Revision:

13:f67a6c6013ca

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wolfssl/wolfcrypt/ed25519.h	Tue Aug 22 10:48:22 2017 +0000
@@ -0,0 +1,132 @@
+/* ed25519.h
+ *
+ * Copyright (C) 2006-2016 wolfSSL Inc.
+ *
+ * This file is part of wolfSSL.
+ *
+ * wolfSSL 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.
+ *
+ * wolfSSL is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
+ */
+
+
+#ifndef WOLF_CRYPT_ED25519_H
+#define WOLF_CRYPT_ED25519_H
+
+#include <wolfssl/wolfcrypt/types.h>
+
+#ifdef HAVE_ED25519
+
+#include <wolfssl/wolfcrypt/fe_operations.h>
+#include <wolfssl/wolfcrypt/ge_operations.h>
+#include <wolfssl/wolfcrypt/random.h>
+#include <wolfssl/wolfcrypt/sha512.h>
+
+#ifdef WOLFSSL_ASYNC_CRYPT
+    #include <wolfssl/wolfcrypt/async.h>
+#endif
+
+#ifdef __cplusplus
+    extern "C" {
+#endif
+
+
+/* info about EdDSA curve specifically ed25519, defined as an elliptic curve
+   over GF(p) */
+/*
+    32,                key size
+    "ED25519",         curve name
+    "2^255-19",        prime number
+    "SHA512",          hash function
+    "-121665/121666",  value of d
+*/
+
+#define ED25519_KEY_SIZE     32 /* private key only */
+#define ED25519_SIG_SIZE     64
+
+#define ED25519_PUB_KEY_SIZE 32 /* compressed */
+/* both private and public key */
+#define ED25519_PRV_KEY_SIZE (ED25519_PUB_KEY_SIZE+ED25519_KEY_SIZE)
+
+
+#ifndef WC_ED25519KEY_TYPE_DEFINED
+    typedef struct ed25519_key ed25519_key;
+    #define WC_ED25519KEY_TYPE_DEFINED
+#endif
+
+/* An ED25519 Key */
+struct ed25519_key {
+    byte    p[ED25519_PUB_KEY_SIZE]; /* compressed public key */
+    byte    k[ED25519_PRV_KEY_SIZE]; /* private key : 32 secret -- 32 public */
+#ifdef FREESCALE_LTC_ECC
+    /* uncompressed point coordinates */
+    byte pointX[ED25519_KEY_SIZE]; /* recovered X coordinate */
+    byte pointY[ED25519_KEY_SIZE]; /* Y coordinate is the public key with The most significant bit of the final octet always zero. */
+#endif
+#ifdef WOLFSSL_ASYNC_CRYPT
+    WC_ASYNC_DEV asyncDev;
+#endif
+};
+
+
+WOLFSSL_API
+int wc_ed25519_make_key(WC_RNG* rng, int keysize, ed25519_key* key);
+WOLFSSL_API
+int wc_ed25519_sign_msg(const byte* in, word32 inlen, byte* out,
+                        word32 *outlen, ed25519_key* key);
+WOLFSSL_API
+int wc_ed25519_verify_msg(const byte* sig, word32 siglen, const byte* msg,
+                          word32 msglen, int* stat, ed25519_key* key);
+WOLFSSL_API
+int wc_ed25519_init(ed25519_key* key);
+WOLFSSL_API
+void wc_ed25519_free(ed25519_key* key);
+WOLFSSL_API
+int wc_ed25519_import_public(const byte* in, word32 inLen, ed25519_key* key);
+WOLFSSL_API
+int wc_ed25519_import_private_only(const byte* priv, word32 privSz,
+                                                              ed25519_key* key);
+WOLFSSL_API
+int wc_ed25519_import_private_key(const byte* priv, word32 privSz,
+                               const byte* pub, word32 pubSz, ed25519_key* key);
+WOLFSSL_API
+int wc_ed25519_export_public(ed25519_key*, byte* out, word32* outLen);
+WOLFSSL_API
+int wc_ed25519_export_private_only(ed25519_key* key, byte* out, word32* outLen);
+WOLFSSL_API
+int wc_ed25519_export_private(ed25519_key* key, byte* out, word32* outLen);
+WOLFSSL_API
+int wc_ed25519_export_key(ed25519_key* key,
+                          byte* priv, word32 *privSz,
+                          byte* pub, word32 *pubSz);
+
+int wc_ed25519_check_key(ed25519_key* key);
+
+/* size helper */
+WOLFSSL_API
+int wc_ed25519_size(ed25519_key* key);
+WOLFSSL_API
+int wc_ed25519_priv_size(ed25519_key* key);
+WOLFSSL_API
+int wc_ed25519_pub_size(ed25519_key* key);
+WOLFSSL_API
+int wc_ed25519_sig_size(ed25519_key* key);
+
+#ifdef __cplusplus
+    }    /* extern "C" */
+#endif
+
+#endif /* HAVE_ED25519 */
+#endif /* WOLF_CRYPT_ED25519_H */
+
+