diff options
author | Bodo Möller <bodo@openssl.org> | 2002-06-14 12:21:11 +0000 |
---|---|---|
committer | Bodo Möller <bodo@openssl.org> | 2002-06-14 12:21:11 +0000 |
commit | c21506ba024adb6d5655a92d61c1d3824e5dedcf (patch) | |
tree | 96e66d9bbbab85cf0a0a317d051156e26df0386d /doc | |
parent | 00f1628eaccac9be1f3941d20f387fa9a7063b30 (diff) |
New option SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS for disabling CBC
vulnerability workaround (included in SSL_OP_ALL).
PR: #90
Diffstat (limited to 'doc')
-rw-r--r-- | doc/ssl/SSL_CTX_set_options.pod | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/doc/ssl/SSL_CTX_set_options.pod b/doc/ssl/SSL_CTX_set_options.pod index c10055c6e7..3b918178fd 100644 --- a/doc/ssl/SSL_CTX_set_options.pod +++ b/doc/ssl/SSL_CTX_set_options.pod @@ -100,14 +100,22 @@ doing a re-connect, always takes the first cipher in the cipher list. ... +=item SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS + +Disables a countermeasure against a SSL 3.0/TLS 1.0 protocol +vulnerability affecting CBC ciphers, which cannot be handled by some +broken SSL implementations. This option has no effect for connections +using other ciphers. + =item SSL_OP_ALL All of the above bug workarounds. =back -It is safe and recommended to use B<SSL_OP_ALL> to enable the bug workaround -options. +It is usually safe to use B<SSL_OP_ALL> to enable the bug workaround +options if compatibility with somewhat broken implementations is +desired. The following B<modifying> options are available: @@ -219,4 +227,9 @@ B<SSL_OP_TLS_ROLLBACK_BUG> has been added in OpenSSL 0.9.6 and was automatically enabled with B<SSL_OP_ALL>. As of 0.9.7, it is no longer included in B<SSL_OP_ALL> and must be explicitly set. +B<SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS> has been added in OpenSSL 0.9.6e. +Versions up to OpenSSL 0.9.6c do not include the countermeasure that +can be disabled with this option (in OpenSSL 0.9.6d, it was always +enabled). + =cut |