Add Mynewt ed25519 support

Signed-off-by: Fabio Utzig <[email protected]>

Author: utzig

boot/bootutil/pkg.yml

@@ -47,3 +47,7 @@ pkg.deps.BOOTUTIL_USE_MBED_TLS:
 pkg.deps.BOOTUTIL_USE_TINYCRYPT:
     - "@mcuboot/ext/tinycrypt/lib"
     - "@mcuboot/ext/mbedtls"
+
+pkg.deps.BOOTUTIL_SIGN_ED25519:
+    - "@apache-mynewt-core/crypto/mbedtls"
+    - "@mcuboot/ext/fiat"

boot/mynewt/mcuboot_config/include/mcuboot_config/mcuboot_config.h

@@ -43,6 +43,9 @@
 #define MCUBOOT_SIGN_RSA 1
 #define MCUBOOT_SIGN_RSA_LEN MYNEWT_VAL(BOOTUTIL_SIGN_RSA_LEN)
 #endif
+#if MYNEWT_VAL(BOOTUTIL_SIGN_ED25519)
+#define MCUBOOT_SIGN_ED25519 1
+#endif
 #if MYNEWT_VAL(BOOTUTIL_SIGN_EC)
 #define MCUBOOT_SIGN_EC 1
 #endif

boot/mynewt/mcuboot_config/syscfg.yml

@@ -34,6 +34,9 @@ syscfg.defs:
     BOOTUTIL_SIGN_EC256:
         description: 'Images are signed using ECDSA NIST P-256.'
         value: 0
+    BOOTUTIL_SIGN_ED25519:
+        description: 'Images are signed using ED25519.'
+        value: 0
     BOOTUTIL_ENCRYPT_RSA:
         description: 'Support for encrypted images using RSA-2048-OAEP.'
         value: 0

ext/fiat/pkg.yml

@@ -0,0 +1,24 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+pkg.name: ext/fiat
+pkg.description: "MCUboot's bundled fiat-crypto"
+pkg.author: "Apache Mynewt <[email protected]>"
+pkg.homepage: "http://mynewt.apache.org/"
+pkg.keywords: