New function mbedtls_ecp_write_public_key
Directly export the public part of a key pair without having to go through
intermediate objects (using mbedtls_ecp_point_write_binary would require a
group object and a point object).
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/library/ecp.c b/library/ecp.c
index 43f7d69..12924bf 100644
--- a/library/ecp.c
+++ b/library/ecp.c
@@ -3333,6 +3333,18 @@
return ret;
}
+/*
+ * Write a public key.
+ */
+int mbedtls_ecp_write_public_key(mbedtls_ecp_keypair *key,
+ int format, size_t *olen,
+ unsigned char *buf, size_t buflen)
+{
+ return mbedtls_ecp_point_write_binary(&key->grp, &key->Q,
+ format, olen, buf, buflen);
+}
+
+
#if defined(MBEDTLS_ECP_C)
/*
* Check a public-private key pair