SSL_CTX_SET_CIPHER_LIST(3ssl) OpenSSL SSL_CTX_SET_CIPHER_LIST(3ssl) SSL_CTX_set_cipher_list, SSL_set_cipher_list, SSL_CTX_set_ciphersuites, SSL_set_ciphersuites, OSSL_default_cipher_list, OSSL_default_ciphersuites - SSL_CIPHERs #include int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str); int SSL_set_cipher_list(SSL *ssl, const char *str); int SSL_CTX_set_ciphersuites(SSL_CTX *ctx, const char *str); int SSL_set_ciphersuites(SSL *s, const char *str); const char *OSSL_default_cipher_list(void); const char *OSSL_default_ciphersuites(void); SSL_CTX_set_cipher_list() (TLSv1.2 ) ctx str. openssl-ciphers(1). ssl ctx. TLSv1.3. SSL_CTX_set_ciphersuites() . ctx NULL. SSL_set_cipher_list() (TLSv1.2 ) ssl. SSL_CTX_set_ciphersuites() TLSv1.3 ctx. (":") TLSv1.3 . 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 TLS_SHA384_SHA384 - TLS_SHA256_SHA256 - . : "TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_GCM_SHA256" SSL_set_ciphersuites() SSL_CTX_set_ciphersuites() ssl. OSSL_default_cipher_list() TLSv1.2 ( ). OSSL_default_ciphersuites() TLSv1.3. str SSL_CTX_set_cipher_list() SSL_set_cipher_list() SSL_CTX_set_ciphersuites() SSL_set_ciphersuites() ( ). . . . . . . . ADH DH . . RSA RSA. RSA DHE DH ( SSL_CTX_set_tmp_dh_callback(3)). DSA DSA. DSA DH DH ( SSL_CTX_set_tmp_dh_callback(3)). ( RSA 512 RSA ) " " (SSL_R_NO_SHARED_CIPHER) . OSSL_default_cipher_list() OSSL_default_ciphersuites() SSL_DEFAULT_CIPHER_LIST TLS_DEFAULT_CIPHERSUITES . 3.0. SSL_CTX_set_cipher_list() SSL_set_cipher_list() 1 0 . SSL_CTX_set_ciphersuites() SSL_set_ciphersuites() 1 0 . ssl(7), SSL_get_ciphers(3), SSL_CTX_use_certificate(3), SSL_CTX_set_tmp_dh_callback(3), openssl-ciphers(1) OSSL_default_cipher_list() OSSL_default_ciphersites() 3.0. 2000-2024 OpenSSL. . Apache 2.0 ( ""). . LICENSE . 3 . . : . 3.6.2 7 2026 SSL_CTX_SET_CIPHER_LIST(3ssl)