When you add or configure an HTTPS listener for a guaranteed-performance Server Load Balancer (SLB) instance, you can select from a variety of TLS security policies and apply one according to your requirements.

You can select a TLS security policy when you set advanced configurations of SSL Certificates for an HTTPS listener. For more information, see Add an HTTPS listener.
Configure the listener

A TLS security policy contains supported TLS protocol versions and cipher suites.

TLS security policy

Security policy Feature Supported TLS version Supported cipher suite
tls_cipher_policy_1_0 Optimal compatibility and with basic security TLSv1.0, TLSv1.1, and TLSv1.2 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, and DES-CBC3-SHA
tls_cipher_policy_1_1 Compatible and with standard security TLSv1.1 and TLSv1.2 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, and DES-CBC3-SHA
tls_cipher_policy_1_2 Compatible and with advanced security TLSv1.2 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, and DES-CBC3-SHA
tls_cipher_policy_1_2_strict Supports only perfect forward secrecy (PFS) cipher suites and offers premium security. TLSv1.2 ECDHE-RSA-AES128-GCM-SHA256, ECDHE-RSA-AES256-GCM-SHA384, ECDHE-RSA-AES128-SHA256, ECDHE-RSA-AES256-SHA384, ECDHE-RSA-AES128-SHA, and ECDHE-RSA-AES256-SHA
tls_cipher_policy_1_2_strict_with_1_3
Note Currently, TLS1.3 is supported in the following regions:
  • UK (London)
  • China (Qingdao)
  • China (Hohhot)
  • China (Chengdu)
  • Japan (Tokyo)
  • India (Mumbai)
  • Australia (Sydney)
  • Malaysia (Kuala Lumpur)
  • US (Silicon Valley)
  • US (Virginia)
  • Germany (Frankfurt)
  • UAE (Dubai)
Supports only perfect forward secrecy (PFS) cipher suites and offers premium security. TLS1.2 and TLS1.3 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, and ECDHE-RSA-AES256-SHA

Algorithm support of different TLS security policies

Security policy 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 - 1.2/1.1/1.0 1.2/1.1 1.2 1.2 1.2 and 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 - - - -