X-Git-Url: https://www.bearssl.org/gitweb//home/git/?p=BearSSL;a=blobdiff_plain;f=src%2Fssl%2Fssl_client_full.c;h=7480de89b806c652dfb14c6283f2fe43a86ae5fb;hp=64f93274669e6001f1addcc2286656fd5faa069d;hb=b42bd5972f935ffc32019acac6f8a07ae08ae9c2;hpb=9e71c0673a9f46f82e43125919619f296698292e;ds=sidebyside

diff --git a/src/ssl/ssl_client_full.c b/src/ssl/ssl_client_full.c
index 64f9327..7480de8 100644
--- a/src/ssl/ssl_client_full.c
+++ b/src/ssl/ssl_client_full.c
@@ -36,17 +36,20 @@ br_ssl_client_init_full(br_ssl_client_context *cc,
 	 * Rationale for suite order, from most important to least
 	 * important rule:
 	 *
-	 * -- Don't use 3DES if AES is available.
+	 * -- Don't use 3DES if AES or ChaCha20 is available.
 	 * -- Try to have Forward Secrecy (ECDHE suite) if possible.
 	 * -- When not using Forward Secrecy, ECDH key exchange is
 	 *    better than RSA key exchange (slightly more expensive on the
 	 *    client, but much cheaper on the server, and it implies smaller
 	 *    messages).
+	 * -- ChaCha20+Poly1305 is better than AES/GCM (faster, smaller code).
 	 * -- GCM is better than CBC.
 	 * -- AES-128 is preferred over AES-256 (AES-128 is already
 	 *    strong enough, and AES-256 is 40% more expensive).
 	 */
 	static const uint16_t suites[] = {
+		BR_TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,
+		BR_TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,
 		BR_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
 		BR_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
 		BR_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
@@ -181,6 +184,10 @@ br_ssl_client_init_full(br_ssl_client_context *cc,
 	br_ssl_engine_set_des_cbc(&cc->eng,
 		&br_des_ct_cbcenc_vtable,
 		&br_des_ct_cbcdec_vtable);
+	br_ssl_engine_set_chacha20(&cc->eng,
+		&br_chacha20_ct_run);
+	br_ssl_engine_set_poly1305(&cc->eng,
+		&br_poly1305_ctmul_run);
 
 	/*
 	 * Set the SSL record engines (CBC, GCM).
@@ -191,4 +198,7 @@ br_ssl_client_init_full(br_ssl_client_context *cc,
 	br_ssl_engine_set_gcm(&cc->eng,
 		&br_sslrec_in_gcm_vtable,
 		&br_sslrec_out_gcm_vtable);
+	br_ssl_engine_set_chapol(&cc->eng,
+		&br_sslrec_in_chapol_vtable,
+		&br_sslrec_out_chapol_vtable);
 }