Ciphers OPENSSL_DEFAULT_STREAM_CIPHERS (string) 默认加密套件列表。 OPENSSL_CIPHER_RC2_40 (int) OPENSSL_CIPHER_RC2_128 (int) OPENSSL_CIPHER_RC2_64 (int) OPENSSL_CIPHER_DES (int) OPENSSL_CIPHER_3DES (int) OPENSSL_CIPHER_AES_128_CBC (int) OPENSSL_CIPHER_AES_192_CBC (int) OPENSSL_CIPHER_AES_256_CBC (int)