Add ecdh_read_params().
diff --git a/library/ecdh.c b/library/ecdh.c
index 32f044a..462e015 100644
--- a/library/ecdh.c
+++ b/library/ecdh.c
@@ -104,16 +104,16 @@
}
/*
- * Setup and write the ServerKeyExhange parameters
+ * Setup and write the ServerKeyExhange parameters (RFC 4492)
* struct {
* ECParameters curve_params;
* ECPoint public;
* } ServerECDHParams;
*/
-int ecdh_make_server_params( ecdh_context *ctx, size_t *olen,
- unsigned char *buf, size_t blen,
- int (*f_rng)(void *, unsigned char *, size_t),
- void *p_rng )
+int ecdh_make_params( ecdh_context *ctx, size_t *olen,
+ unsigned char *buf, size_t blen,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng )
{
int ret;
size_t grp_len, pt_len;
@@ -137,6 +137,27 @@
return 0;
}
+/*
+ * Read the ServerKeyExhange parameters (RFC 4492)
+ * struct {
+ * ECParameters curve_params;
+ * ECPoint public;
+ * } ServerECDHParams;
+ */
+int ecdh_read_params( ecdh_context *ctx,
+ const unsigned char **buf, const unsigned char *end )
+{
+ int ret;
+
+ if( ( ret = ecp_tls_read_group( &ctx->grp, buf, end - *buf ) ) != 0 )
+ return( ret );
+
+ if( ( ret = ecp_tls_read_point( &ctx->grp, &ctx->Qp, buf, end - *buf ) )
+ != 0 )
+ return( ret );
+
+ return 0;
+}
#if defined(POLARSSL_SELF_TEST)