ngx_http_ssl_module.c



SSL_OP_CIPHER_SERVER_PREFERENCE 

ngx_event_openssl.c 中 ngx_ssl_ciphers  函数 



ssl_lib.c

ssl_create_cipher_list

ssl_cipher_apply_rule(

cipher_id 

alg_mkey

alg_auth

alg_enc

alg_mac

min_tls

algo_strength

rule = CIPHER_ORD/CIPHER_ADD

strength_bits

head_p

tail_p

)



打开套件调试

CIPHER_DEBUG