性能保障型负载均衡实例在创建和配置HTTPS监听时，支持选择TLS安全策略。

选择TLS安全策略

您可以在添加或者配置HTTPS监听时，修改SSL证书高级配置，选择TLS安全策略，具体操作，请参见添加HTTPS监听。配置监听

TLS安全策略

TLS安全策略包含HTTPS可选的TLS协议版本和配套的加密算法套件。TLS协议版本越高，HTTPS通信的安全性越高，但是相较于低版本TLS协议，高版本TLS协议对浏览器的兼容性较差。

安全策略 支持TLS版本 支持加密算法套件
tls_cipher_policy_1_0 TLSv1.0、TLSv1.1和TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256、ECDHE-ECDSA-AES256-GCM-SHA384、ECDHE-ECDSA-AES128-SHA256、ECDHE-ECDSA-AES256-SHA384、ECDHE-RSA-AES128-GCM-SHA256、ECDHE-RSA-AES256-GCM-SHA384、ECDHE-RSA-AES128-SHA256、ECDHE-RSA-AES256-SHA384、AES128-GCM-SHA256、AES256-GCM-SHA384、AES128-SHA256、AES256-SHA256、ECDHE-ECDSA-AES128-SHA、ECDHE-ECDSA-AES256-SHA、ECDHE-RSA-AES128-SHA、ECDHE-RSA-AES256-SHA、AES128-SHA、AES256-SHA、DES-CBC3-SHA
tls_cipher_policy_1_1 TLSv1.1和TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256、ECDHE-ECDSA-AES256-GCM-SHA384、ECDHE-ECDSA-AES128-SHA256、ECDHE-ECDSA-AES256-SHA384、ECDHE-RSA-AES128-GCM-SHA256、ECDHE-RSA-AES256-GCM-SHA384、ECDHE-RSA-AES128-SHA256、ECDHE-RSA-AES256-SHA384、AES128-GCM-SHA256、AES256-GCM-SHA384、AES128-SHA256、AES256-SHA256、ECDHE-ECDSA-AES128-SHA、ECDHE-ECDSA-AES256-SHA、ECDHE-RSA-AES128-SHA、ECDHE-RSA-AES256-SHA、AES128-SHA、AES256-SHA、DES-CBC3-SHA
tls_cipher_policy_1_2 TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256、ECDHE-ECDSA-AES256-GCM-SHA384、ECDHE-ECDSA-AES128-SHA256、ECDHE-ECDSA-AES256-SHA384、ECDHE-RSA-AES128-GCM-SHA256、ECDHE-RSA-AES256-GCM-SHA384、ECDHE-RSA-AES128-SHA256、ECDHE-RSA-AES256-SHA384、AES128-GCM-SHA256、AES256-GCM-SHA384、AES128-SHA256,AES256-SHA256、ECDHE-ECDSA-AES128-SHA、ECDHE-ECDSA-AES256-SHA、ECDHE-RSA-AES128-SHA、ECDHE-RSA-AES256-SHA、AES128-SHA、AES256-SHA、DES-CBC3-SHA
tls_cipher_policy_1_2_strict TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256、ECDHE-ECDSA-AES256-GCM-SHA384、ECDHE-ECDSA-AES128-SHA256、ECDHE-ECDSA-AES256-SHA384、ECDHE-RSA-AES128-GCM-SHA256、ECDHE-RSA-AES256-GCM-SHA384、ECDHE-RSA-AES128-SHA256、ECDHE-RSA-AES256-SHA384、ECDHE-ECDSA-AES128-SHA、ECDHE-ECDSA-AES256-SHA、ECDHE-RSA-AES128-SHA、ECDHE-RSA-AES256-SHA
tls_cipher_policy_1_2_strict_with_1_3 TLSv1.2及TLSv1.3 TLS_AES_128_GCM_SHA256、TLS_AES_256_GCM_SHA384、TLS_CHACHA20_POLY1305_SHA256、TLS_AES_128_CCM_SHA256、TLS_AES_128_CCM_8_SHA256、ECDHE-ECDSA-AES128-GCM-SHA256、ECDHE-ECDSA-AES256-GCM-SHA384、ECDHE-ECDSA-AES128-SHA256、ECDHE-ECDSA-AES256-SHA384、ECDHE-RSA-AES128-GCM-SHA256、ECDHE-RSA-AES256-GCM-SHA384、ECDHE-RSA-AES128-SHA256、ECDHE-RSA-AES256-SHA384、ECDHE-ECDSA-AES128-SHA、ECDHE-ECDSA-AES256-SHA、ECDHE-RSA-AES128-SHA、ECDHE-RSA-AES256-SHA

关于以上安全策略

TLS安全策略支持的加密算法套件

安全策略 tls_cipher_policy_1_0 tls_cipher_policy_1_1 tls_cipher_policy_1_2 tls_cipher_policy_1_2_strict tls_cipher_policy_1_2_strict_with_1_3
TLS 1.2、1.1及1.0 1.1及1.2 1.2 1.2 1.2及1.3
CIPHER ECDHE-RSA-AES128-GCM-SHA256 ✔ ✔ ✔ ✔ ✔
ECDHE-RSA-AES256-GCM-SHA384 ✔ ✔ ✔ ✔ ✔
ECDHE-RSA-AES128-SHA256 ✔ ✔ ✔ ✔ ✔
ECDHE-RSA-AES256-SHA384 ✔ ✔ ✔ ✔ ✔
AES128-GCM-SHA256 ✔ ✔ ✔ - -
AES256-GCM-SHA384 ✔ ✔ ✔ - -
AES128-SHA256 ✔ ✔ ✔ - -
AES256-SHA256 ✔ ✔ ✔ - -
ECDHE-RSA-AES128-SHA ✔ ✔ ✔ ✔ ✔
ECDHE-RSA-AES256-SHA ✔ ✔ ✔ ✔ ✔
AES128-SHA ✔ ✔ ✔ - -
AES256-SHA ✔ ✔ ✔ - -
DES-CBC3-SHA ✔ ✔ ✔ - -
TLS_AES_128_GCM_SHA256 - - - - ✔
TLS_AES_256_GCM_SHA384 - - - - ✔
TLS_CHACHA20_POLY1305_SHA256 - - - - ✔
TLS_AES_128_CCM_SHA256 - - - - ✔
TLS_AES_128_CCM_8_SHA256 - - - - ✔
ECDHE-ECDSA-AES128-GCM-SHA256 - - - - ✔
ECDHE-ECDSA-AES256-GCM-SHA384 - - - - ✔
ECDHE-ECDSA-AES128-SHA256 - - - - ✔
ECDHE-ECDSA-AES256-SHA384 - - - - ✔
ECDHE-ECDSA-AES128-SHA - - - - ✔
ECDHE-ECDSA-AES256-SHA - - - - ✔
说明 上表中的✔表示支持，-表示不支持。