commit 74c3bab496fe2ba3e7ed1128b2e06871b9fb4abb
author Fabio Utzig <utzig@apache.org> Thu May 06 19:54:29 2021 -0300
committer Fabio Utzig <utzig@utzig.org> Thu May 06 21:05:47 2021 -0300
tree 7b8944161377e1bfa1ea1f4fbb9e2a8d3f1e12a9
parent b6d75e765f02b4cbb4fbcc5461ef2fd45d8e9c7f

crypto: ecdh: define NUM_ECC_BYTES for Mbed TLS

This is a define from Tinycrypt that was being used in the Mbed TLS
EC256 encrypted images implementation so properly define it.

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

boot/bootutil/include/bootutil/crypto/ecdh_p256.h

diff --git a/boot/bootutil/include/bootutil/crypto/ecdh_p256.h b/boot/bootutil/include/bootutil/crypto/ecdh_p256.h
index a37d50a..b6d16ba 100644
--- a/boot/bootutil/include/bootutil/crypto/ecdh_p256.h
+++ b/boot/bootutil/include/bootutil/crypto/ecdh_p256.h
@@ -68,6 +68,8 @@
 #endif /* MCUBOOT_USE_TINYCRYPT */
 
 #if defined(MCUBOOT_USE_MBED_TLS)
+#define NUM_ECC_BYTES 32
+
 typedef struct bootutil_ecdh_p256_context {
     mbedtls_ecp_group grp;
     mbedtls_ecp_point P;