openssl: Add support for Ed25519/Ed448

src/libstrongswan/plugins/openssl/Makefile.am

@@ -30,7 +30,9 @@ libstrongswan_openssl_la_SOURCES = \
 	openssl_rng.c openssl_rng.h \
 	openssl_hmac.c openssl_hmac.h \
 	openssl_gcm.c openssl_gcm.h \
-	openssl_x_diffie_hellman.c openssl_x_diffie_hellman.h
+	openssl_x_diffie_hellman.c openssl_x_diffie_hellman.h \
+	openssl_ed_private_key.c openssl_ed_private_key.h \
+	openssl_ed_public_key.c openssl_ed_public_key.h
 
 libstrongswan_openssl_la_LDFLAGS = -module -avoid-version
 libstrongswan_openssl_la_LIBADD  = $(OPENSSL_LIB)

src/libstrongswan/plugins/openssl/openssl_ed_private_key.c

@@ -0,0 +1,356 @@
+/*
+ * Copyright (C) 2018 Tobias Brunner
+ * HSR Hochschule fuer Technik Rapperswil
+ *
+ * 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.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program 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.
+ */
+
+#include <openssl/evp.h>
+
+#if OPENSSL_VERSION_NUMBER >= 0x1010100fL && !defined(OPENSSL_NO_EC)
+
+#include "openssl_ed_private_key.h"
+
+#include <utils/debug.h>
+
+typedef struct private_private_key_t private_private_key_t;
+
+/**
+ * Private data
+ */
+struct private_private_key_t {
+
+	/**
+	 * Public interface
+	 */
+	private_key_t public;
+
+	/**
+	 * Key object
+	 */
+	EVP_PKEY *key;
+
+	/**
+	 * Key type
+	 */
+	key_type_t type;
+
+	/**
+	 * TRUE if the key is from an OpenSSL ENGINE and might not be readable
+	 */
+	bool engine;
+
+	/**
+	 * reference count
+	 */
+	refcount_t ref;
+};
+
+/**
+ * We can't include asn1.h, declare function prototype directly
+ */
+int asn1_unwrap(chunk_t*, chunk_t*);
+
+/* from ed public key */
+int openssl_ed_key_type(key_type_t type);
+int openssl_ed_keysize(key_type_t type);
+bool openssl_ed_fingerprint(EVP_PKEY *key, cred_encoding_type_t type, chunk_t *fp);
+
+METHOD(private_key_t, sign, bool,
+	private_private_key_t *this, signature_scheme_t scheme,
+	void *params, chunk_t data, chunk_t *signature)
+{
+	EVP_MD_CTX *ctx;
+	bool success = FALSE;
+
+	if ((this->type == KEY_ED25519 && scheme != SIGN_ED25519) ||
+		(this->type == KEY_ED448 && scheme != SIGN_ED448))
+	{
+		DBG1(DBG_LIB, "signature scheme %N not supported by %N key",
+			 signature_scheme_names, scheme, key_type_names, this->type);
+		return FALSE;
+	}
+
+	ctx = EVP_MD_CTX_new();
+	if (!ctx ||
+		EVP_DigestSignInit(ctx, NULL, NULL, NULL, this->key) <= 0)
+	{
+		goto error;
+	}
+
+	if (EVP_DigestSign(ctx, NULL, &signature->len, data.ptr, data.len) <= 0)
+	{
+		goto error;
+	}
+
+	*signature = chunk_alloc(signature->len);
+
+	if (EVP_DigestSign(ctx, signature->ptr, &signature->len,
+					   data.ptr, data.len) <= 0)
+	{
+		goto error;
+	}
+
+	success = TRUE;
+
+error:
+	EVP_MD_CTX_free(ctx);
+	return success;
+}
+
+METHOD(private_key_t, decrypt, bool,
+	private_private_key_t *this, encryption_scheme_t scheme,
+	chunk_t crypto, chunk_t *plain)
+{
+	DBG1(DBG_LIB, "EdDSA private key decryption not implemented");
+	return FALSE;
+}
+
+METHOD(private_key_t, get_keysize, int,
+	private_private_key_t *this)
+{
+	return openssl_ed_keysize(this->type);
+}
+
+METHOD(private_key_t, get_type, key_type_t,
+	private_private_key_t *this)
+{
+	return this->type;
+}
+
+METHOD(private_key_t, get_public_key, public_key_t*,
+	private_private_key_t *this)
+{
+	public_key_t *public;
+	chunk_t key;
+
+	if (!EVP_PKEY_get_raw_public_key(this->key, NULL, &key.len))
+	{
+		return FALSE;
+	}
+	key = chunk_alloca(key.len);
+	if (!EVP_PKEY_get_raw_public_key(this->key, key.ptr, &key.len))
+	{
+		return FALSE;
+	}
+	public = lib->creds->create(lib->creds, CRED_PUBLIC_KEY, this->type,
+								BUILD_EDDSA_PUB, key, BUILD_END);
+	return public;
+}
+
+METHOD(private_key_t, get_fingerprint, bool,
+	private_private_key_t *this, cred_encoding_type_t type,
+	chunk_t *fingerprint)
+{
+	return openssl_ed_fingerprint(this->key, type, fingerprint);
+}
+
+METHOD(private_key_t, get_encoding, bool,
+	private_private_key_t *this, cred_encoding_type_t type, chunk_t *encoding)
+{
+	u_char *p;
+
+	if (this->engine)
+	{
+		return FALSE;
+	}
+
+	switch (type)
+	{
+		case PRIVKEY_ASN1_DER:
+		case PRIVKEY_PEM:
+		{
+			bool success = TRUE;
+
+			*encoding = chunk_alloc(i2d_PrivateKey(this->key, NULL));
+			p = encoding->ptr;
+			i2d_PrivateKey(this->key, &p);
+
+			if (type == PRIVKEY_PEM)
+			{
+				chunk_t asn1_encoding = *encoding;
+
+				success = lib->encoding->encode(lib->encoding, PRIVKEY_PEM,
+								NULL, encoding, CRED_PART_EDDSA_PRIV_ASN1_DER,
+								asn1_encoding, CRED_PART_END);
+				chunk_clear(&asn1_encoding);
+			}
+			return success;
+		}
+		default:
+			return FALSE;
+	}
+}
+
+METHOD(private_key_t, get_ref, private_key_t*,
+	private_private_key_t *this)
+{
+	ref_get(&this->ref);
+	return &this->public;
+}
+
+METHOD(private_key_t, destroy, void,
+	private_private_key_t *this)
+{
+	if (ref_put(&this->ref))
+	{
+		lib->encoding->clear_cache(lib->encoding, this->key);
+		EVP_PKEY_free(this->key);
+		free(this);
+	}
+}
+
+/**
+ * Internal generic constructor
+ */
+static private_private_key_t *create_internal(key_type_t type, EVP_PKEY *key)
+{
+	private_private_key_t *this;
+
+	INIT(this,
+		.public = {
+			.get_type = _get_type,
+			.sign = _sign,
+			.decrypt = _decrypt,
+			.get_keysize = _get_keysize,
+			.get_public_key = _get_public_key,
+			.equals = private_key_equals,
+			.belongs_to = private_key_belongs_to,
+			.get_fingerprint = _get_fingerprint,
+			.has_fingerprint = private_key_has_fingerprint,
+			.get_encoding = _get_encoding,
+			.get_ref = _get_ref,
+			.destroy = _destroy,
+		},
+		.type = type,
+		.key = key,
+		.ref = 1,
+	);
+
+	return this;
+}
+
+/*
+ * Described in header
+ */
+private_key_t *openssl_ed_private_key_create(EVP_PKEY *key, bool engine)
+{
+	private_private_key_t *this;
+	key_type_t type;
+
+	switch (EVP_PKEY_base_id(key))
+	{
+		case EVP_PKEY_X25519:
+			type = KEY_ED25519;
+			break;
+		case EVP_PKEY_X448:
+			type = KEY_ED448;
+			break;
+		default:
+			EVP_PKEY_free(key);
+			return NULL;
+	}
+
+	this = create_internal(type, key);
+	this->engine = engine;
+	return &this->public;
+}
+
+/*
+ * Described in header
+ */
+private_key_t *openssl_ed_private_key_gen(key_type_t type, va_list args)
+{
+	private_private_key_t *this;
+	EVP_PKEY_CTX *ctx;
+	EVP_PKEY *key = NULL;
+
+	while (TRUE)
+	{
+		switch (va_arg(args, builder_part_t))
+		{
+			case BUILD_KEY_SIZE:
+				/* just ignore the key size */
+				va_arg(args, u_int);
+				continue;
+			case BUILD_END:
+				break;
+			default:
+				return NULL;
+		}
+		break;
+	}
+
+	ctx = EVP_PKEY_CTX_new_id(openssl_ed_key_type(type), NULL);
+	if (!ctx ||
+		EVP_PKEY_keygen_init(ctx) <= 0 ||
+		EVP_PKEY_keygen(ctx, &key) <= 0)
+	{
+		DBG1(DBG_LIB, "generating %N key failed", key_type_names, type);
+		EVP_PKEY_CTX_free(ctx);
+		return NULL;
+	}
+	EVP_PKEY_CTX_free(ctx);
+
+	this = create_internal(type, key);
+	return &this->public;
+}
+
+/*
+ * Described in header
+ */
+private_key_t *openssl_ed_private_key_load(key_type_t type, va_list args)
+{
+	private_private_key_t *this;
+	chunk_t blob = chunk_empty, priv = chunk_empty;
+	EVP_PKEY *key = NULL;
+
+	while (TRUE)
+	{
+		switch (va_arg(args, builder_part_t))
+		{
+			case BUILD_BLOB_ASN1_DER:
+				blob = va_arg(args, chunk_t);
+				continue;
+			case BUILD_EDDSA_PRIV_ASN1_DER:
+				priv = va_arg(args, chunk_t);
+				continue;
+			case BUILD_END:
+				break;
+			default:
+				return NULL;
+		}
+		break;
+	}
+
+	if (priv.len)
+	{
+		/* unwrap octet string */
+		if (asn1_unwrap(&priv, &priv) == 0x04 && priv.len)
+		{
+			key = EVP_PKEY_new_raw_private_key(openssl_ed_key_type(type), NULL,
+											   priv.ptr, priv.len);
+		}
+	}
+	else if (blob.len)
+	{
+		key = d2i_PrivateKey(openssl_ed_key_type(type), NULL,
+							 (const u_char**)&blob.ptr, blob.len);
+	}
+	if (!key)
+	{
+		return NULL;
+	}
+	this = create_internal(type, key);
+	return &this->public;
+}
+
+#endif /* OPENSSL_NO_ECDSA */

src/libstrongswan/plugins/openssl/openssl_ed_private_key.h

@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2018 Tobias Brunner
+ * HSR Hochschule fuer Technik Rapperswil
+ *
+ * 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.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program 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.
+ */
+
+/**
+ * @defgroup openssl_ed_private_key openssl_ed_private_key
+ * @{ @ingroup openssl_p
+ */
+
+#ifndef OPENSSL_ED_PRIVATE_KEY_H_
+#define OPENSSL_ED_PRIVATE_KEY_H_
+
+#include <openssl/evp.h>
+
+#include <credentials/builder.h>
+#include <credentials/keys/private_key.h>
+
+/**
+ * Generate an EdDSA private key using OpenSSL.
+ *
+ * @param type		type of the key, must be KEY_ED25519 or KEY_ED448
+ * @param args		builder_part_t argument list
+ * @return 			generated key, NULL on failure
+ */
+private_key_t *openssl_ed_private_key_gen(key_type_t type, va_list args);
+
+/**
+ * Load an EdDSA private key using OpenSSL.
+ *
+ * Accepts a BUILD_BLOB_ASN1_DER argument.
+ *
+ * @param type		type of the key, must be KEY_ED25519 or KEY_ED448
+ * @param args		builder_part_t argument list
+ * @return 			loaded key, NULL on failure
+ */
+private_key_t *openssl_ed_private_key_load(key_type_t type, va_list args);
+
+/**
+ * Wrap an EVP_PKEY object of type EVP_PKEY_ED25519/448
+ *
+ * @param key		EVP_PKEY object (adopted)
+ * @param engine	whether the key was loaded via an engine
+ * @return 			loaded key, NULL on failure
+ */
+private_key_t *openssl_ed_private_key_create(EVP_PKEY *key, bool engine);
+
+#endif /** OPENSSL_ED_PRIVATE_KEY_H_ @}*/

src/libstrongswan/plugins/openssl/openssl_ed_public_key.c

@@ -0,0 +1,304 @@
+/*
+ * Copyright (C) 2018 Tobias Brunner
+ * HSR Hochschule fuer Technik Rapperswil
+ *
+ * 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.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program 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.
+ */
+
+#include <openssl/evp.h>
+
+#if OPENSSL_VERSION_NUMBER >= 0x1010100fL && !defined(OPENSSL_NO_EC)
+
+#include <openssl/x509.h>
+
+#include "openssl_ed_public_key.h"
+
+#include <utils/debug.h>
+
+typedef struct private_public_key_t private_public_key_t;
+
+/**
+ * Private data
+ */
+struct private_public_key_t {
+
+	/**
+	 * Public interface
+	 */
+	public_key_t public;
+
+	/**
+	 * Key object
+	 */
+	EVP_PKEY *key;
+
+	/**
+	 * Key type
+	 */
+	key_type_t type;
+
+	/**
+	 * Reference counter
+	 */
+	refcount_t ref;
+};
+
+/**
+ * Map a key type to an EVP key type
+ */
+int openssl_ed_key_type(key_type_t type)
+{
+	switch (type)
+	{
+		case KEY_ED25519:
+			return EVP_PKEY_ED25519;
+		case KEY_ED448:
+			return EVP_PKEY_ED448;
+		default:
+			return 0;
+	}
+}
+
+/**
+ * Map a key type to a key size
+ */
+int openssl_ed_keysize(key_type_t type)
+{
+	switch (type)
+	{
+		case KEY_ED25519:
+			return 32 * 8;
+		case KEY_ED448:
+			return 57 * 8;
+		default:
+			return 0;
+	}
+}
+
+METHOD(public_key_t, get_type, key_type_t,
+	private_public_key_t *this)
+{
+	return this->type;
+}
+
+METHOD(public_key_t, verify, bool,
+	private_public_key_t *this, signature_scheme_t scheme,
+	void *params, chunk_t data, chunk_t signature)
+{
+	EVP_MD_CTX *ctx;
+
+	if ((this->type == KEY_ED25519 && scheme != SIGN_ED25519) ||
+		(this->type == KEY_ED448 && scheme != SIGN_ED448))
+	{
+		DBG1(DBG_LIB, "signature scheme %N not supported by %N key",
+			 signature_scheme_names, scheme, key_type_names, this->type);
+		return FALSE;
+	}
+
+	ctx = EVP_MD_CTX_new();
+	if (!ctx ||
+		EVP_DigestVerifyInit(ctx, NULL, NULL, NULL, this->key) <= 0 ||
+		EVP_DigestVerify(ctx, signature.ptr, signature.len,
+						 data.ptr, data.len) <= 0)
+	{
+		EVP_MD_CTX_free(ctx);
+		return FALSE;
+	}
+	EVP_MD_CTX_free(ctx);
+	return TRUE;
+}
+
+METHOD(public_key_t, encrypt, bool,
+	private_public_key_t *this, encryption_scheme_t scheme,
+	chunk_t crypto, chunk_t *plain)
+{
+	DBG1(DBG_LIB, "encryption scheme %N not supported", encryption_scheme_names,
+		 scheme);
+	return FALSE;
+}
+
+METHOD(public_key_t, get_keysize, int,
+	private_public_key_t *this)
+{
+	return openssl_ed_keysize(this->type);
+}
+
+/**
+ * Calculate fingerprint from an EdDSA key, also used in ed private key.
+ */
+bool openssl_ed_fingerprint(EVP_PKEY *key, cred_encoding_type_t type,
+							chunk_t *fp)
+{
+	hasher_t *hasher;
+	chunk_t blob;
+	u_char *p;
+
+	if (lib->encoding->get_cache(lib->encoding, type, key, fp))
+	{
+		return TRUE;
+	}
+	switch (type)
+	{
+		case KEYID_PUBKEY_SHA1:
+			if (!EVP_PKEY_get_raw_public_key(key, NULL, &blob.len))
+			{
+				return FALSE;
+			}
+			blob = chunk_alloca(blob.len);
+			if (!EVP_PKEY_get_raw_public_key(key, blob.ptr, &blob.len))
+			{
+				return FALSE;
+			}
+			break;
+		case KEYID_PUBKEY_INFO_SHA1:
+			blob = chunk_alloca(i2d_PUBKEY(key, NULL));
+			p = blob.ptr;
+			i2d_PUBKEY(key, &p);
+			break;
+		default:
+			return FALSE;
+	}
+	hasher = lib->crypto->create_hasher(lib->crypto, HASH_SHA1);
+	if (!hasher || !hasher->allocate_hash(hasher, blob, fp))
+	{
+		DBG1(DBG_LIB, "SHA1 not supported, fingerprinting failed");
+		DESTROY_IF(hasher);
+		return FALSE;
+	}
+	hasher->destroy(hasher);
+	lib->encoding->cache(lib->encoding, type, key, *fp);
+	return TRUE;
+}
+
+METHOD(public_key_t, get_fingerprint, bool,
+	private_public_key_t *this, cred_encoding_type_t type, chunk_t *fingerprint)
+{
+	return openssl_ed_fingerprint(this->key, type, fingerprint);
+}
+
+METHOD(public_key_t, get_encoding, bool,
+	private_public_key_t *this, cred_encoding_type_t type, chunk_t *encoding)
+{
+	bool success = TRUE;
+	u_char *p;
+
+	*encoding = chunk_alloc(i2d_PUBKEY(this->key, NULL));
+	p = encoding->ptr;
+	i2d_PUBKEY(this->key, &p);
+
+	if (type != PUBKEY_SPKI_ASN1_DER)
+	{
+		chunk_t asn1_encoding = *encoding;
+
+		success = lib->encoding->encode(lib->encoding, type,
+								NULL, encoding, CRED_PART_EDDSA_PUB_ASN1_DER,
+								asn1_encoding, CRED_PART_END);
+		chunk_clear(&asn1_encoding);
+	}
+	return success;
+}
+
+METHOD(public_key_t, get_ref, public_key_t*,
+	private_public_key_t *this)
+{
+	ref_get(&this->ref);
+	return &this->public;
+}
+
+METHOD(public_key_t, destroy, void,
+	private_public_key_t *this)
+{
+	if (ref_put(&this->ref))
+	{
+		lib->encoding->clear_cache(lib->encoding, this->key);
+		EVP_PKEY_free(this->key);
+		free(this);
+	}
+}
+
+/**
+ * Generic private constructor
+ */
+static private_public_key_t *create_empty(key_type_t type)
+{
+	private_public_key_t *this;
+
+	INIT(this,
+		.public = {
+			.get_type = _get_type,
+			.verify = _verify,
+			.encrypt = _encrypt,
+			.get_keysize = _get_keysize,
+			.equals = public_key_equals,
+			.get_fingerprint = _get_fingerprint,
+			.has_fingerprint = public_key_has_fingerprint,
+			.get_encoding = _get_encoding,
+			.get_ref = _get_ref,
+			.destroy = _destroy,
+		},
+		.type = type,
+		.ref = 1,
+	);
+
+	return this;
+}
+
+/*
+ * Described in header
+ */
+public_key_t *openssl_ed_public_key_load(key_type_t type, va_list args)
+{
+	private_public_key_t *this;
+	chunk_t blob = chunk_empty, pub = chunk_empty;
+	EVP_PKEY *key = NULL;
+
+	while (TRUE)
+	{
+		switch (va_arg(args, builder_part_t))
+		{
+			case BUILD_BLOB_ASN1_DER:
+				blob = va_arg(args, chunk_t);
+				continue;
+			case BUILD_EDDSA_PUB:
+				pub = va_arg(args, chunk_t);
+				continue;
+			case BUILD_END:
+				break;
+			default:
+				return NULL;
+		}
+		break;
+	}
+
+	if (pub.len)
+	{
+		key = EVP_PKEY_new_raw_public_key(openssl_ed_key_type(type), NULL,
+										  pub.ptr, pub.len);
+	}
+	else if (blob.len)
+	{
+		key = d2i_PUBKEY(NULL, (const u_char**)&blob.ptr, blob.len);
+		if (key && EVP_PKEY_base_id(key) != openssl_ed_key_type(type))
+		{
+			EVP_PKEY_free(key);
+			return NULL;
+		}
+	}
+	if (!key)
+	{
+		return NULL;
+	}
+	this = create_empty(type);
+	this->key = key;
+	return &this->public;
+}
+
+#endif /* OPENSSL_VERSION_NUMBER */

src/libstrongswan/plugins/openssl/openssl_ed_public_key.h

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2018 Tobias Brunner
+ * HSR Hochschule fuer Technik Rapperswil
+ *
+ * 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.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program 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.
+ */
+
+/**
+ * @defgroup openssl_ed_public_key openssl_ed_public_key
+ * @{ @ingroup openssl_p
+ */
+
+#ifndef OPENSSL_ED_PUBLIC_KEY_H_
+#define OPENSSL_ED_PUBLIC_KEY_H_
+
+#include <credentials/builder.h>
+#include <credentials/keys/public_key.h>
+
+/**
+ * Load an EdDSA public key using OpenSSL.
+ *
+ * Accepts a BUILD_BLOB_ASN1_DER argument.
+ *
+ * @param type		type of the key, must be KEY_ED25519 or KEY_ED448
+ * @param args		builder_part_t argument list
+ * @return 			loaded key, NULL on failure
+ */
+public_key_t *openssl_ed_public_key_load(key_type_t type, va_list args);
+
+#endif /** OPENSSL_ED_PUBLIC_KEY_H_ @}*/

src/libstrongswan/plugins/openssl/openssl_plugin.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2008-2016 Tobias Brunner
+ * Copyright (C) 2008-2018 Tobias Brunner
  * Copyright (C) 2008 Martin Willi
  * HSR Hochschule fuer Technik Rapperswil
  *
@@ -48,6 +48,8 @@
 #include "openssl_hmac.h"
 #include "openssl_gcm.h"
 #include "openssl_x_diffie_hellman.h"
+#include "openssl_ed_public_key.h"
+#include "openssl_ed_private_key.h"
 
 #ifndef FIPS_MODE
 #define FIPS_MODE 0
@@ -308,6 +310,11 @@ static private_key_t *openssl_private_key_load(key_type_t type, va_list args)
 				case EVP_PKEY_EC:
 					return openssl_ec_private_key_create(key, FALSE);
 #endif
+#if OPENSSL_VERSION_NUMBER >= 0x1010100fL && !defined(OPENSSL_NO_EC)
+				case EVP_PKEY_ED25519:
+				case EVP_PKEY_ED448:
+					return openssl_ed_private_key_create(key, FALSE);
+#endif /* OPENSSL_VERSION_NUMBER */
 				default:
 					EVP_PKEY_free(key);
 					break;
@@ -455,6 +462,11 @@ static private_key_t *openssl_private_key_connect(key_type_t type,
 		case EVP_PKEY_EC:
 			return openssl_ec_private_key_create(key, TRUE);
 #endif
+#if OPENSSL_VERSION_NUMBER >= 0x1010100fL && !defined(OPENSSL_NO_EC)
+		case EVP_PKEY_ED25519:
+		case EVP_PKEY_ED448:
+			return openssl_ed_private_key_create(key, TRUE);
+#endif /* OPENSSL_VERSION_NUMBER */
 		default:
 			EVP_PKEY_free(key);
 			break;
@@ -595,13 +607,6 @@ METHOD(plugin_t, get_features, int,
 			PLUGIN_PROVIDE(DH, ECP_384_BP),
 			PLUGIN_PROVIDE(DH, ECP_512_BP),
 			PLUGIN_PROVIDE(DH, ECP_224_BP),
-#if OPENSSL_VERSION_NUMBER >= 0x1010100fL
-		PLUGIN_REGISTER(DH, openssl_x_diffie_hellman_create),
-			/* available since 1.1.0a, but we require 1.1.1 features */
-			PLUGIN_PROVIDE(DH, CURVE_25519),
-			/* available since 1.1.1 */
-			PLUGIN_PROVIDE(DH, CURVE_448),
-#endif /* OPENSSL_VERSION_NUMBER */
 #endif /* OPENSSL_NO_ECDH */
 #ifndef OPENSSL_NO_DH
 		/* MODP DH groups */
@@ -707,6 +712,30 @@ METHOD(plugin_t, get_features, int,
 		PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_ECDSA_521),
 #endif
 #endif /* OPENSSL_NO_ECDSA */
+#if OPENSSL_VERSION_NUMBER >= 0x1010100fL && !defined(OPENSSL_NO_EC)
+		PLUGIN_REGISTER(DH, openssl_x_diffie_hellman_create),
+			/* available since 1.1.0a, but we require 1.1.1 features */
+			PLUGIN_PROVIDE(DH, CURVE_25519),
+			/* available since 1.1.1 */
+			PLUGIN_PROVIDE(DH, CURVE_448),
+		/* EdDSA private/public key loading */
+		PLUGIN_REGISTER(PUBKEY, openssl_ed_public_key_load, TRUE),
+			PLUGIN_PROVIDE(PUBKEY, KEY_ED25519),
+			PLUGIN_PROVIDE(PUBKEY, KEY_ED448),
+		PLUGIN_REGISTER(PRIVKEY, openssl_ed_private_key_load, TRUE),
+			PLUGIN_PROVIDE(PRIVKEY, KEY_ED25519),
+			PLUGIN_PROVIDE(PRIVKEY, KEY_ED448),
+		PLUGIN_REGISTER(PRIVKEY_GEN, openssl_ed_private_key_gen, FALSE),
+			PLUGIN_PROVIDE(PRIVKEY_GEN, KEY_ED25519),
+			PLUGIN_PROVIDE(PRIVKEY_GEN, KEY_ED448),
+		PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_ED25519),
+		PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_ED448),
+		PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_ED25519),
+		PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_ED448),
+		/* register a pro forma identity hasher, never instantiated */
+		PLUGIN_REGISTER(HASHER, return_null),
+			PLUGIN_PROVIDE(HASHER, HASH_IDENTITY),
+#endif /* OPENSSL_VERSION_NUMBER && !OPENSSL_NO_EC */
 		/* generic key loader */
 		PLUGIN_REGISTER(PRIVKEY, openssl_private_key_load, TRUE),
 			PLUGIN_PROVIDE(PRIVKEY, KEY_ANY),

src/libstrongswan/tests/suites/test_ed25519.c

@@ -280,7 +280,7 @@ START_TEST(test_ed25519_sign)
 					BUILD_BLOB_ASN1_DER, sig_tests[_i].key, BUILD_END);
 	ck_assert(key != NULL);
 	ck_assert(key->get_encoding(key, PRIVKEY_ASN1_DER, &encoding));
-	ck_assert(chunk_equals(encoding, sig_tests[_i].key));
+	ck_assert_chunk_eq(encoding, sig_tests[_i].key);
 	chunk_free(&encoding);
 
 	/* load public key */
@@ -288,7 +288,7 @@ START_TEST(test_ed25519_sign)
 					BUILD_BLOB_ASN1_DER, sig_tests[_i].pubkey, BUILD_END);
 	ck_assert(pubkey != NULL);
 	ck_assert(pubkey->get_encoding(pubkey, PUBKEY_SPKI_ASN1_DER, &encoding));
-	ck_assert(chunk_equals(encoding, sig_tests[_i].pubkey));
+	ck_assert_chunk_eq(encoding, sig_tests[_i].pubkey);
 	chunk_free(&encoding);
 
 	/* compare public keys */
@@ -299,7 +299,7 @@ START_TEST(test_ed25519_sign)
 	/* sign */
 	ck_assert(key->sign(key, SIGN_ED25519, NULL, sig_tests[_i].msg, &sig));
 	ck_assert(sig.len == 64);
-	ck_assert(chunk_equals(sig, sig_tests[_i].sig));
+	ck_assert_chunk_eq(sig, sig_tests[_i].sig);
 
 	/* verify */
 	ck_assert(pubkey->verify(pubkey, SIGN_ED25519, NULL, sig_tests[_i].msg,
@@ -364,7 +364,7 @@ START_TEST(test_ed25519_gen)
 	ck_assert(pubkey->get_fingerprint(pubkey, KEYID_PUBKEY_SHA1, &fp_pub));
 	ck_assert(pubkey->get_fingerprint(pubkey, KEYID_PUBKEY_SHA1, &fp_pub));
 	ck_assert(fp_pub.ptr != NULL);
-	ck_assert(chunk_equals(fp_pub, fp_priv));
+	ck_assert_chunk_eq(fp_pub, fp_priv);
 
 	/* clone public key */
 	pubkey2 = pubkey->get_ref(pubkey);