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-rw-r--r--src/common/tortls.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/common/tortls.c b/src/common/tortls.c
index bbbf6a5ef..8f3f6a713 100644
--- a/src/common/tortls.c
+++ b/src/common/tortls.c
@@ -1277,6 +1277,10 @@ tor_tls_context_new(crypto_pk_t *identity, unsigned int key_lifetime,
goto error;
SSL_CTX_set_options(result->ctx, SSL_OP_NO_SSLv2);
+ /* Prefer the server's ordering of ciphers: the client's ordering has
+ * historically been chosen for fingerprinting resistance. */
+ SSL_CTX_set_options(result->ctx, SSL_OP_CIPHER_SERVER_PREFERENCE);
+
/* Disable TLS1.1 and TLS1.2 if they exist. We need to do this to
* workaround a bug present in all OpenSSL 1.0.1 versions (as of 1
* June 2012), wherein renegotiating while using one of these TLS