这些算法按一定优先级排列,如果不作任何指定,将选用DES-CBC3-SHA.用SSL_CTX_set_cipher_list可以指定自己希望用的算法(实际上只是 提高其优先级,是否能使用还要看对方是否支持). 我们在程序中选用了RC4做加密,MD5做消息摘要(先进行MD5运算,后进行RC4加密).即 SSL_CTX_set_cipher_list(ctx,"RC4-MD5"); 在消...
ctx = SSL_CTX_new (TLSv1_server_method()); CHK_NULL(ctx); SSL_CTX_set_verify(ctx,SSL_VERIFY_PEER,NULL);/*验证与否*/ SSL_CTX_load_verify_locations(ctx,CACERT,NULL);/*若验证,则放置CA证书*/ if (SSL_CTX_use_certificate_file(ctx, CERTF, SSL_FILETYPE_PEM) <= 0) { ERR_print_er...
这些算法按一定优先级排列,如果不作任何指定,将选用DES-CBC3-SHA.用SSL_CTX_set_cipher_list可以指定自己希望用的算法(实际上只是 提高其优先级,是否能使用还要看对方是否支持). 我们在程序中选用了RC4做加密,MD5做消息摘要(先进行MD5运算,后进行RC4加密).即 SSL_CTX_set_cipher_list(ctx,"RC4-MD5"); 在消...
SSL_CTX_set_cipher_list(ctx, "RC4-MD5"); //处理握手多次 SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY); /*以下是正常的TCP socket建立过程 ... */ SOCKET sock; printf("Begin tcp socket...\n"); sock = socket(AF_INET, SOCK_STREAM, 0); if (sock == INVALID_SOCKET) { printf("SOCK...
-cipher:用于为证书或密钥加密,默认不加密。该选项需要整体替换为-des3、-aes128、-aes192、-aes256等,也可以同时指定加密模式,如-aes-128-cbc, aes 算法的更多模式见此链接。 -pass:指定密码。需要按照固定的格式,例如,-pass stdin表示从标准输入中获取密码,-pass file:pathname表示从文件中获取密码,-pass pas...
SSL_CTX_set_ssl_version() is intended to adapt an SSL_CTX to a new (presumably, fixed-version) SSL_METHOD, filtering down the cipher list to ciphers that are supported by the new method. However, there is no TLS 1.3-specific method, so for any fixed-version method, no TLS 1.3 cipher...
可以看到ssl具体握手过程: image.png 源码分析 打开s_client.c,进入s_client_main函数: image.png 从890~2975行,初始化环境,并根据./openssl s_client传入的参数 设置握手信息。 1903行,SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback); ...
SSL handshake has read 0 bytes and written 0 bytes Verification: OK --- New, (NONE), Cipher is (NONE) Secure Renegotiation IS NOT supported Compression: NONE Expansion: NONE No ALPN negotiated Early data was not sent SSL-Session: Protocol : TLSv1.3 Cipher : 0000 Session-ID: Session-ID-...
voidwolfSSL_EVP_CIPHER_CTX_set_flags(WOLFSSL_EVP_CIPHER_CTX * ctx, int flags) Setter function for WOLFSSL_EVP_CIPHER_CTX structure. voidwolfSSL_EVP_CIPHER_CTX_clear_flags(WOLFSSL_EVP_CIPHER_CTX * ctx, int flags) Clearing function for WOLFSSL_EVP_CIPHER_CTX structure. ...
[root@itops-tco-227 smarts-ncm]# openssl s_client -connect localhost:8880 -cipher "HIGH" CONNECTED(00000003) ... verify error:num=18:self signed certificate verify return:1 depth=... verify return:1 11286:error:14094410:SSL routines:SSL3_READ_BYTES:sslv3 alert handshake failure:s3_pkt.c...