security
The ID of the security policy. System security policies and custom security policies are supported. System security policies valid values: tls_cipher_policy_1_0 (default), tls_cipher_policy_1_1, tls_cipher_policy_1_2, tls_cipher_policy_1_2_strict, and tls_cipher_policy_1_2_strict_with_1_3. Custom security policies can be created by resource alicloud.nlb.SecurityPolicy.