commit 4876484bce36cb030e1ec1acee0669ef996187cf
author Fabio Utzig <utzig@apache.org> Fri May 10 19:28:24 2019 -0300
committer Fabio Utzig <utzig@utzig.org> Thu Jun 13 19:21:05 2019 -0300
tree 8507d7cb9381f875de7ad3e222175aed39cec481
parent a1e8e4334d2acb1017a3626d89ba8ed2be74611c

Add bootutil support for ed25519 validation

Signed-off-by: Fabio Utzig <utzig@apache.org>

boot/bootutil/src/image_validate.c

diff --git a/boot/bootutil/src/image_validate.c b/boot/bootutil/src/image_validate.c
index 6597a81..9cff0ac 100644
--- a/boot/bootutil/src/image_validate.c
+++ b/boot/bootutil/src/image_validate.c
@@ -123,9 +123,10 @@
  * call.  List the type of TLV we are expecting.  If we aren't
  * configured for any signature, don't define this macro.
  */
-#if (defined(MCUBOOT_SIGN_RSA)   + \
-     defined(MCUBOOT_SIGN_EC)    + \
-     defined(MCUBOOT_SIGN_EC256)) > 1
+#if (defined(MCUBOOT_SIGN_RSA)      + \
+     defined(MCUBOOT_SIGN_EC)       + \
+     defined(MCUBOOT_SIGN_EC256)    + \
+     defined(MCUBOOT_SIGN_ED25519)) > 1
 #error "Only a single signature type is supported!"
 #endif
 
@@ -147,6 +148,10 @@
 #    define EXPECTED_SIG_TLV IMAGE_TLV_ECDSA256
 #    define SIG_BUF_SIZE 128
 #    define EXPECTED_SIG_LEN(x) ((x) >= 72) /* oids + 2 * 32 bytes */
+#elif defined(MCUBOOT_SIGN_ED25519)
+#    define EXPECTED_SIG_TLV IMAGE_TLV_ED25519
+#    define SIG_BUF_SIZE 64
+#    define EXPECTED_SIG_LEN(x) ((x) == SIG_BUF_SIZE)
 #else
 #    define SIG_BUF_SIZE 32 /* no signing, sha256 digest only */
 #endif