OpenSSL 选项
【OpenSSL options】
有关详细信息，请参阅SSL 操作标志列表。
【See the list of SSL OP Flags for details.】
| Constant | Description |
|---|---|
SSL_OP_ALL |
Applies multiple bug workarounds within OpenSSL. See https://www.openssl.org/docs/man3.0/man3/SSL_CTX_set_options.html for detail. |
SSL_OP_ALLOW_NO_DHE_KEX |
Instructs OpenSSL to allow a non-[EC]DHE-based key exchange mode for TLS v1.3 |
SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION |
Allows legacy insecure renegotiation between OpenSSL and unpatched clients or servers. See https://www.openssl.org/docs/man3.0/man3/SSL_CTX_set_options.html. |
SSL_OP_CIPHER_SERVER_PREFERENCE |
Attempts to use the server's preferences instead of the client's when selecting a cipher. Behavior depends on protocol version. See https://www.openssl.org/docs/man3.0/man3/SSL_CTX_set_options.html. |
SSL_OP_CISCO_ANYCONNECT |
Instructs OpenSSL to use Cisco's version identifier of DTLS_BAD_VER. |
SSL_OP_COOKIE_EXCHANGE |
Instructs OpenSSL to turn on cookie exchange. |
SSL_OP_CRYPTOPRO_TLSEXT_BUG |
Instructs OpenSSL to add server-hello extension from an early version of the cryptopro draft. |
SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS |
Instructs OpenSSL to disable a SSL 3.0/TLS 1.0 vulnerability workaround added in OpenSSL 0.9.6d. |
SSL_OP_LEGACY_SERVER_CONNECT |
Allows initial connection to servers that do not support RI. |
SSL_OP_NO_COMPRESSION |
Instructs OpenSSL to disable support for SSL/TLS compression. |
SSL_OP_NO_ENCRYPT_THEN_MAC |
Instructs OpenSSL to disable encrypt-then-MAC. |
SSL_OP_NO_QUERY_MTU |
|
SSL_OP_NO_RENEGOTIATION |
Instructs OpenSSL to disable renegotiation. |
SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION |
Instructs OpenSSL to always start a new session when performing renegotiation. |
SSL_OP_NO_SSLv2 |
Instructs OpenSSL to turn off SSL v2 |
SSL_OP_NO_SSLv3 |
Instructs OpenSSL to turn off SSL v3 |
SSL_OP_NO_TICKET |
Instructs OpenSSL to disable use of RFC4507bis tickets. |
SSL_OP_NO_TLSv1 |
Instructs OpenSSL to turn off TLS v1 |
SSL_OP_NO_TLSv1_1 |
Instructs OpenSSL to turn off TLS v1.1 |
SSL_OP_NO_TLSv1_2 |
Instructs OpenSSL to turn off TLS v1.2 |
SSL_OP_NO_TLSv1_3 |
Instructs OpenSSL to turn off TLS v1.3 |
SSL_OP_PRIORITIZE_CHACHA |
Instructs OpenSSL server to prioritize ChaCha20-Poly1305
when the client does.
This option has no effect if
SSL_OP_CIPHER_SERVER_PREFERENCE
is not enabled. |
SSL_OP_TLS_ROLLBACK_BUG |
Instructs OpenSSL to disable version rollback attack detection. |