Add SSL_OP_NO_ENCRYPT_THEN_MAC

[openssl.git] / doc / ssl / SSL_CTX_set_options.pod

diff --git a/doc/ssl/SSL_CTX_set_options.pod b/doc/ssl/SSL_CTX_set_options.pod
index 635b470e12453c1c7f8ed74a76374fb349e26d6d..63609f3a3192b71ee89ba6bd546a602bbcda3fa2 100644 (file)
--- a/doc/ssl/SSL_CTX_set_options.pod
+++ b/doc/ssl/SSL_CTX_set_options.pod
@@ -189,6 +189,14 @@ Allow legacy insecure renegotiation between OpenSSL and unpatched servers
 B<only>: this option is currently set by default. See the
 B<SECURE RENEGOTIATION> section for more details.
 
+=item SSL_OP_NO_ENCRYPT_THEN_MAC
+
+Normally clients and servers will transparently attempt to negotiate the
+RFC7366 Encrypt-then-MAC option on TLS and DTLS connection.
+
+If this option is set, Encrypt-then-MAC is disabled. Clients will not
+propose, and servers will not accept the extension.
+
 =back
 
 =head1 SECURE RENEGOTIATION