參考鏈接

列出gmssl支持的國密算法TLS1.x密碼套件_liuqun69的博客-CSDN博客
使用Clion和gmssl動態庫實現服務器server和客戶端client之間的SSL通信_MY CUP OF TEA的博客-CSDN博客

注意事項

GM/T 標準涵蓋 2 個協議：- SSL VPN 協議 (GM/T 0024-2014)- IPSec VPN 協議 (GM/T 0022-2014)GM/T 0024-2014 SSL VPN 協議與 IETF TLS 在以下方面有所不同：- 當前版本的 TLS 是 1.3 (0x0304)，而 GM/T SSL 版本是 1.1 (0x0102)。- GM/T SSL 的握手協議與 TLS 握手不同。- 為 VPN 應用設計的 GM/T SSL 中有一個可選的不同記錄協議。- GM/T SSL 有 12 個密碼套件，其中一些密碼不提供前向保密。GM/T 0024-2014 密碼套件：```1. {0xe0,0x01} GMTLS_SM2DHE_SM2SIGN_WITH_SM1_SM32. {0xe0,0x03} GMTLS_SM2ENC_WITH_SM1_SM33. {0xe0,0x05} GMTLS_SM9DHE_SM9SIGN_WITH_SM1_SM34. {0xe0,0x07} GMTLS_SM9ENC_WITH_SM1_SM35. {0xe0,0x09} GMTLS_RSA_WITH_SM1_SM36. {0xe0,0x0a} GMTLS_RSA_WITH_SM1_SHA17. {0xe0,0x11} GMTLS_SM2DHE_SM2SIGN_WITH_SMS4_SM38. {0xe0,0x13} GMTLS_SM2ENC_WITH_SMS4_SM39. {0xe0,0x15} GMTLS_SM9DHE_SM9SIGN_WITH_SMS4_SM3
10. {0xe0,0x17} GMTLS_SM9ENC_WITH_SMS4_SM3
11. {0xe0,0x19} GMTLS_RSA_WITH_SMS4_SM3
12. {0xe0,0x1a} GMTLS_RSA_WITH_SMS4_SHA1

?雖然gmssl的源碼文件夾里面的 README.md 明確指出，其支持國密算法12種算法套件
但是，使用命令?gmssl ciphers -V 列舉其支持的算法TLS1.x密碼套件，卻根本不涵蓋上述7和8

chy-cpabe@ubuntu:~/ssl_server_client/ca$ gmssl ciphers -V0xC0,0x2C - ECDHE-ECDSA-AES256-GCM-SHA384  TLSv1.2    Kx=ECDH     Au=ECDSA  Enc=AESGCM(256)             Mac=AEAD0xC0,0x30 - ECDHE-RSA-AES256-GCM-SHA384    TLSv1.2    Kx=ECDH     Au=RSA    Enc=AESGCM(256)             Mac=AEAD0x00,0x9F - DHE-RSA-AES256-GCM-SHA384      TLSv1.2    Kx=DH       Au=RSA    Enc=AESGCM(256)             Mac=AEAD0xCC,0xA9 - ECDHE-ECDSA-CHACHA20-POLY1305  TLSv1.2    Kx=ECDH     Au=ECDSA  Enc=CHACHA20/POLY1305(256)  Mac=AEAD0xCC,0xA8 - ECDHE-RSA-CHACHA20-POLY1305    TLSv1.2    Kx=ECDH     Au=RSA    Enc=CHACHA20/POLY1305(256)  Mac=AEAD0xCC,0xAA - DHE-RSA-CHACHA20-POLY1305      TLSv1.2    Kx=DH       Au=RSA    Enc=CHACHA20/POLY1305(256)  Mac=AEAD0xC0,0x2B - ECDHE-ECDSA-AES128-GCM-SHA256  TLSv1.2    Kx=ECDH     Au=ECDSA  Enc=AESGCM(128)             Mac=AEAD0xC0,0x2F - ECDHE-RSA-AES128-GCM-SHA256    TLSv1.2    Kx=ECDH     Au=RSA    Enc=AESGCM(128)             Mac=AEAD0x00,0x9E - DHE-RSA-AES128-GCM-SHA256      TLSv1.2    Kx=DH       Au=RSA    Enc=AESGCM(128)             Mac=AEAD0xE1,0x07 - ECDHE-SM2-WITH-SMS4-GCM-SM3    TLSv1.2    Kx=ECDH     Au=SM2    Enc=SMS4GCM(128)            Mac=AEAD0xC0,0x24 - ECDHE-ECDSA-AES256-SHA384      TLSv1.2    Kx=ECDH     Au=ECDSA  Enc=AES(256)                Mac=SHA3840xC0,0x28 - ECDHE-RSA-AES256-SHA384        TLSv1.2    Kx=ECDH     Au=RSA    Enc=AES(256)                Mac=SHA3840x00,0x6B - DHE-RSA-AES256-SHA256          TLSv1.2    Kx=DH       Au=RSA    Enc=AES(256)                Mac=SHA2560xC0,0x23 - ECDHE-ECDSA-AES128-SHA256      TLSv1.2    Kx=ECDH     Au=ECDSA  Enc=AES(128)                Mac=SHA2560xC0,0x27 - ECDHE-RSA-AES128-SHA256        TLSv1.2    Kx=ECDH     Au=RSA    Enc=AES(128)                Mac=SHA2560x00,0x67 - DHE-RSA-AES128-SHA256          TLSv1.2    Kx=DH       Au=RSA    Enc=AES(128)                Mac=SHA2560xE1,0x02 - ECDHE-SM2-WITH-SMS4-SM3        TLSv1.2    Kx=ECDH     Au=SM2    Enc=SMS4(128)               Mac=SM3 0xC0,0x0A - ECDHE-ECDSA-AES256-SHA         SSLv3      Kx=ECDH     Au=ECDSA  Enc=AES(256)                Mac=SHA10xC0,0x14 - ECDHE-RSA-AES256-SHA           SSLv3      Kx=ECDH     Au=RSA    Enc=AES(256)                Mac=SHA10x00,0x39 - DHE-RSA-AES256-SHA             SSLv3      Kx=DH       Au=RSA    Enc=AES(256)                Mac=SHA10xC0,0x09 - ECDHE-ECDSA-AES128-SHA         SSLv3      Kx=ECDH     Au=ECDSA  Enc=AES(128)                Mac=SHA10xC0,0x13 - ECDHE-RSA-AES128-SHA           SSLv3      Kx=ECDH     Au=RSA    Enc=AES(128)                Mac=SHA10x00,0x33 - DHE-RSA-AES128-SHA             SSLv3      Kx=DH       Au=RSA    Enc=AES(128)                Mac=SHA10x00,0xAD - RSA-PSK-AES256-GCM-SHA384      TLSv1.2    Kx=RSAPSK   Au=RSA    Enc=AESGCM(256)             Mac=AEAD0x00,0xAB - DHE-PSK-AES256-GCM-SHA384      TLSv1.2    Kx=DHEPSK   Au=PSK    Enc=AESGCM(256)             Mac=AEAD0xCC,0xAE - RSA-PSK-CHACHA20-POLY1305      TLSv1.2    Kx=RSAPSK   Au=RSA    Enc=CHACHA20/POLY1305(256)  Mac=AEAD0xCC,0xAD - DHE-PSK-CHACHA20-POLY1305      TLSv1.2    Kx=DHEPSK   Au=PSK    Enc=CHACHA20/POLY1305(256)  Mac=AEAD0xCC,0xAC - ECDHE-PSK-CHACHA20-POLY1305    TLSv1.2    Kx=ECDHEPSK Au=PSK    Enc=CHACHA20/POLY1305(256)  Mac=AEAD0x00,0x9D - AES256-GCM-SHA384              TLSv1.2    Kx=RSA      Au=RSA    Enc=AESGCM(256)             Mac=AEAD0x00,0xA9 - PSK-AES256-GCM-SHA384          TLSv1.2    Kx=PSK      Au=PSK    Enc=AESGCM(256)             Mac=AEAD0xCC,0xAB - PSK-CHACHA20-POLY1305          TLSv1.2    Kx=PSK      Au=PSK    Enc=CHACHA20/POLY1305(256)  Mac=AEAD0x00,0xAC - RSA-PSK-AES128-GCM-SHA256      TLSv1.2    Kx=RSAPSK   Au=RSA    Enc=AESGCM(128)             Mac=AEAD0x00,0xAA - DHE-PSK-AES128-GCM-SHA256      TLSv1.2    Kx=DHEPSK   Au=PSK    Enc=AESGCM(128)             Mac=AEAD0x00,0x9C - AES128-GCM-SHA256              TLSv1.2    Kx=RSA      Au=RSA    Enc=AESGCM(128)             Mac=AEAD0x00,0xA8 - PSK-AES128-GCM-SHA256          TLSv1.2    Kx=PSK      Au=PSK    Enc=AESGCM(128)             Mac=AEAD0x00,0x3D - AES256-SHA256                  TLSv1.2    Kx=RSA      Au=RSA    Enc=AES(256)                Mac=SHA2560x00,0x3C - AES128-SHA256                  TLSv1.2    Kx=RSA      Au=RSA    Enc=AES(128)                Mac=SHA2560xC0,0x38 - ECDHE-PSK-AES256-CBC-SHA384    TLSv1      Kx=ECDHEPSK Au=PSK    Enc=AES(256)                Mac=SHA3840xC0,0x36 - ECDHE-PSK-AES256-CBC-SHA       SSLv3      Kx=ECDHEPSK Au=PSK    Enc=AES(256)                Mac=SHA10xC0,0x21 - SRP-RSA-AES-256-CBC-SHA        SSLv3      Kx=SRP      Au=RSA    Enc=AES(256)                Mac=SHA10xC0,0x20 - SRP-AES-256-CBC-SHA            SSLv3      Kx=SRP      Au=SRP    Enc=AES(256)                Mac=SHA10x00,0xB7 - RSA-PSK-AES256-CBC-SHA384      TLSv1      Kx=RSAPSK   Au=RSA    Enc=AES(256)                Mac=SHA3840x00,0xB3 - DHE-PSK-AES256-CBC-SHA384      TLSv1      Kx=DHEPSK   Au=PSK    Enc=AES(256)                Mac=SHA3840x00,0x95 - RSA-PSK-AES256-CBC-SHA         SSLv3      Kx=RSAPSK   Au=RSA    Enc=AES(256)                Mac=SHA10x00,0x91 - DHE-PSK-AES256-CBC-SHA         SSLv3      Kx=DHEPSK   Au=PSK    Enc=AES(256)                Mac=SHA10x00,0x35 - AES256-SHA                     SSLv3      Kx=RSA      Au=RSA    Enc=AES(256)                Mac=SHA10x00,0xAF - PSK-AES256-CBC-SHA384          TLSv1      Kx=PSK      Au=PSK    Enc=AES(256)                Mac=SHA3840x00,0x8D - PSK-AES256-CBC-SHA             SSLv3      Kx=PSK      Au=PSK    Enc=AES(256)                Mac=SHA10xC0,0x37 - ECDHE-PSK-AES128-CBC-SHA256    TLSv1      Kx=ECDHEPSK Au=PSK    Enc=AES(128)                Mac=SHA2560xC0,0x35 - ECDHE-PSK-AES128-CBC-SHA       SSLv3      Kx=ECDHEPSK Au=PSK    Enc=AES(128)                Mac=SHA10xC0,0x1E - SRP-RSA-AES-128-CBC-SHA        SSLv3      Kx=SRP      Au=RSA    Enc=AES(128)                Mac=SHA10xC0,0x1D - SRP-AES-128-CBC-SHA            SSLv3      Kx=SRP      Au=SRP    Enc=AES(128)                Mac=SHA10x00,0xB6 - RSA-PSK-AES128-CBC-SHA256      TLSv1      Kx=RSAPSK   Au=RSA    Enc=AES(128)                Mac=SHA2560x00,0xB2 - DHE-PSK-AES128-CBC-SHA256      TLSv1      Kx=DHEPSK   Au=PSK    Enc=AES(128)                Mac=SHA2560x00,0x94 - RSA-PSK-AES128-CBC-SHA         SSLv3      Kx=RSAPSK   Au=RSA    Enc=AES(128)                Mac=SHA10x00,0x90 - DHE-PSK-AES128-CBC-SHA         SSLv3      Kx=DHEPSK   Au=PSK    Enc=AES(128)                Mac=SHA10xF1,0x20 - ECDHE-PSK-WITH-SMS4-CBC-SM3    TLSv1      Kx=ECDHEPSK Au=PSK    Enc=SMS4(128)               Mac=SM3 0xE0,0x17 - SM9-WITH-SMS4-SM3              GMTLSv1.1  Kx=SM9      Au=SM9    Enc=SMS4(128)               Mac=SM3 0xE0,0x15 - SM9DHE-WITH-SMS4-SM3           GMTLSv1.1  Kx=SM9DHE   Au=SM9    Enc=SMS4(128)               Mac=SM3 0xE0,0x13 - SM2-WITH-SMS4-SM3              GMTLSv1.1  Kx=SM2      Au=SM2    Enc=SMS4(128)               Mac=SM3 0xE0,0x11 - SM2DHE-WITH-SMS4-SM3           GMTLSv1.1  Kx=SM2DHE   Au=SM2    Enc=SMS4(128)               Mac=SM3 0x00,0x2F - AES128-SHA                     SSLv3      Kx=RSA      Au=RSA    Enc=AES(128)                Mac=SHA10xE0,0x1A - RSA-WITH-SMS4-SHA1             GMTLSv1.1  Kx=RSA      Au=RSA    Enc=SMS4(128)               Mac=SHA10xE0,0x19 - RSA-WITH-SMS4-SM3              GMTLSv1.1  Kx=RSA      Au=RSA    Enc=SMS4(128)               Mac=SM3 0x00,0xAE - PSK-AES128-CBC-SHA256          TLSv1      Kx=PSK      Au=PSK    Enc=AES(128)                Mac=SHA2560x00,0x8C - PSK-AES128-CBC-SHA             SSLv3      Kx=PSK      Au=PSK    Enc=AES(128)                Mac=SHA10xF1,0x01 - PSK-WITH-SMS4-CBC-SM3          SSLv3      Kx=PSK      Au=PSK    Enc=SMS4(128)               Mac=SM3

添加代碼如下
原因
- ca、服務器和客戶端的證書均為國密證書
- ? ? ? ? /* 申請SSL會話環境 */ ? ? ? ? if( nullptr==(ctx=SSL_CTX_new(TLSv1_2_method())) ) ? ?//使用SSL_CTX_new()創建會話環境，建立連接時要使用協議由TLS_client_method()來定，服務器由對應的TLS_server_method()來定。如果這一步出錯，需要查看錯誤棧來查看原因；指定了TLSv1_2_method模式

        //指定密碼算法套件// gmssl ciphers -V 明確支持SSL_CTX_set_cipher_list(ctx,"ECDHE-SM2-WITH-SMS4-GCM-SM3");// SM2-XXX
//        SSL_CTX_set_cipher_list(ctx,"GMTLS_SM2DHE_SM2SIGN_WITH_SMS4_SM3"); //{0xe0,0x11}
//        SSL_CTX_set_cipher_list(ctx,"GMTLS_SM2ENC_WITH_SMS4_SM3"); //{0xe0,0x13}

?ECDHE-SM2-WITH-SMS4-SM3 是默認的算法，且是gmssl自我實現的算法，并未得到官方認證

GmSSL supports the standard TLS 1.2 protocol with SM2/SM3/SM4 ciphersuites and the GM/T SSL VPN protocol and ciphersuites. Currently the following ciphersuites are supported:```
ECDHE-SM2-WITH-SMS4-SM3
ECDHE-SM2-WITH-SMS4-SHA256

GmSSL 支持帶有 SM2/SM3/SM4 密碼套件的標準 TLS 1.2 協議以及 GM/T SSL VPN 協議和密碼套件。 目前支持以下密碼套件：```
ECDHE-SM2-WITH-SMS4-SM3
ECDHE-SM2-WITH-SMS4-SHA256

?代碼

服務端 server

#include <cstdio>
#include <cstdlib>
#include <cerrno>
#include <cstring>
#include <netinet/in.h>
#include <sys/socket.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <openssl/ssl.h>
#include <openssl/err.h>#define MAXBUF 1500void ShowCerts(SSL * ssl)
{X509 *cert;char *line;cert = SSL_get_peer_certificate(ssl);// SSL_get_verify_result()是重點，SSL_CTX_set_verify()只是配置啟不啟用并沒有執行認證，調用該函數才會真證進行證書認證// 如果驗證不通過，那么程序拋出異常中止連接if(SSL_get_verify_result(ssl) == X509_V_OK){printf("證書驗證通過\n");}if (cert != nullptr) {printf("數字證書信息:\n");line = X509_NAME_oneline(X509_get_subject_name(cert), nullptr, 0);printf("證書: %s\n", line);free(line);line = X509_NAME_oneline(X509_get_issuer_name(cert), nullptr, 0);printf("頒發者: %s\n", line);free(line);X509_free(cert);} elseprintf("無證書信息！\n");
}int main(int argc, char **argv) {int listen_fd = -1; /* TCP監聽套接字 */int accept_fd = -1; /* 已連接TCP套接字 */struct sockaddr_in server_addr, client_addr;bzero(&server_addr, sizeof(server_addr));SSL_CTX *ctx = nullptr; /* SSL會話環境 */SSL *ssl = nullptr; /* SSL安全套接字 */socklen_t len;char buf[MAXBUF]={0};  /* 服務器接收數據buffer */if( 3!=argc ){printf("argcment wrong:ip port\n");}SSL_library_init(); /* SSL 庫初始化 */SSLeay_add_ssl_algorithms();OpenSSL_add_all_algorithms();  /* 載入所有 SSL 算法 */SSL_load_error_strings(); /* 載入所有 SSL 錯誤消息 */
//    ERR_load_BIO_strings();//TCP服務器：創建、綁定、監聽if ((listen_fd = socket(PF_INET, SOCK_STREAM, 0)) == -1) {perror("socket create wrong\n");exit(1);} elseprintf("socket created\n");server_addr.sin_family = PF_INET;server_addr.sin_port = htons(atoi(argv[2]));server_addr.sin_addr.s_addr = inet_addr(argv[1]);;if (bind(listen_fd, (struct sockaddr *) &server_addr, sizeof(struct sockaddr))== -1) {perror("bind wrong\n");exit(1);} elseprintf("binded success\n");int lisnum = 2;do{//使用SSL_CTX_new()創建會話環境，建立連接時要使用協議由TLS_server_method()來定。如果這一步出錯，需要查看錯誤棧來查看原因if(nullptr == (ctx = SSL_CTX_new( TLSv1_2_method())))		//using sm3, TLSv1_2_method{ERR_print_errors_fp(stdout);break;}
//        SSL_CTX_set_security_level(ctx,0);//指定密碼算法套件// gmssl ciphers -V 明確支持SSL_CTX_set_cipher_list(ctx,"ECDHE-SM2-WITH-SMS4-GCM-SM3");// SM2-XXX
//        SSL_CTX_set_cipher_list(ctx,"GMTLS_SM2DHE_SM2SIGN_WITH_SMS4_SM3"); //{0xe0,0x11}
//        SSL_CTX_set_cipher_list(ctx,"GMTLS_SM2ENC_WITH_SMS4_SM3"); //{0xe0,0x13}// 雙向驗證// SSL_VERIFY_PEER---要求對證書進行認證，沒有證書也會放行// SSL_VERIFY_FAIL_IF_NO_PEER_CERT---要求客戶端需要提供證書，但驗證發現單獨使用沒有證書也會放行SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT, nullptr);// 設置信任根證書if(SSL_CTX_load_verify_locations(ctx, "/home/chy-cpabe/CLionProjects/learn_GmSSL_server/pem/CaCert.pem", nullptr) != 1)
//        if(SSL_CTX_load_verify_locations(ctx, "/home/chy-cpabe/ssl_server_client.openssl_bak/ca/ca.crt", nullptr) != 1){printf("SSL_CTX_load_verify_locations error\n");ERR_print_errors_fp(stdout);break;}/* 載入用戶的數字證書， 此證書用來發送給客戶端。 證書里包含有公鑰 */if( 0>=SSL_CTX_use_certificate_file(ctx, "/home/chy-cpabe/CLionProjects/learn_GmSSL_server/pem/HuiguanCert.pem", SSL_FILETYPE_PEM/*SSL_FILETYPE_ASN1*/) ) /* 為SSL會話加載用戶證書 */
//        if( 0>=SSL_CTX_use_certificate_file(ctx, "/home/chy-cpabe/ssl_server_client.openssl_bak/server/pem/server.crt", SSL_FILETYPE_PEM/*SSL_FILETYPE_ASN1*/) ) /* 為SSL會話加載用戶證書 */{ERR_print_errors_fp(stdout);break;}/* 載入用戶私鑰 */if( 0>=SSL_CTX_use_PrivateKey_file(ctx, "/home/chy-cpabe/CLionProjects/learn_GmSSL_server/pem/HuiguanKey.pem", SSL_FILETYPE_PEM/*SSL_FILETYPE_ASN1*/) ) /* 為SSL會話加載用戶私鑰 */
//        if( 0>=SSL_CTX_use_PrivateKey_file(ctx, "/home/chy-cpabe/ssl_server_client.openssl_bak/server/pem/server_rsa_private.pem.unsecure", SSL_FILETYPE_PEM/*SSL_FILETYPE_ASN1*/) ) /* 為SSL會話加載用戶私鑰 */{ERR_print_errors_fp(stdout);break;}/* 檢查用戶私鑰是否正確 */if(!SSL_CTX_check_private_key(ctx))                                 										 /* 驗證私鑰和證書是否相符 */{ERR_print_errors_fp(stdout);break;}if (listen(listen_fd, lisnum) == -1) {perror("listen wrong\n");exit(1);} elseprintf("begin listen\n");len = sizeof(struct sockaddr);/* 等待客戶端連上來 */if ((accept_fd = accept(listen_fd, (struct sockaddr *) &client_addr, &len))== -1) {perror("accept wrong\n");exit(errno);} else{printf("server: got connection from %s, port %d, socket %d\n",inet_ntoa(client_addr.sin_addr), ntohs(client_addr.sin_port),accept_fd);}ssl = SSL_new(ctx); /* 基于 ctx 產生一個新的 SSL */SSL_set_fd(ssl, accept_fd); /* 將連接用戶的 socket 加入到 SSL *//* 建立 SSL 連接 */if (SSL_accept(ssl) == -1) {perror("accept wrong\n");SSL_shutdown(ssl);SSL_free(ssl);ssl= nullptr;close(accept_fd);accept_fd=-1;break;}ShowCerts(ssl);/* 開始處理每個新連接上的數據收發 */bzero(buf, MAXBUF + 1);strcpy(buf, "server->client");/* 發消息給客戶端 */len = SSL_write(ssl, buf, strlen(buf));if (len <= 0) {printf("消息'%s'發送失敗！錯誤代碼是%d，錯誤信息是'%s'\n", buf, errno,strerror(errno));goto finish;} elseprintf("消息'%s'發送成功，共發送了%d個字節！\n", buf, len);bzero(buf, MAXBUF + 1);/* 接收客戶端的消息 */len = SSL_read(ssl, buf, MAXBUF);if (len > 0)printf("接收消息成功:'%s'，共%d個字節的數據\n", buf, len);elseprintf("消息接收失敗！錯誤代碼是%d，錯誤信息是'%s'\n",errno, strerror(errno));/* 處理每個新連接上的數據收發結束 */finish:/* 關閉 SSL 連接 */SSL_shutdown(ssl);/* 釋放 SSL */SSL_free(ssl);ssl = nullptr;/* 關閉 socket */close(accept_fd);accept_fd = -1;}while(1);/* 關閉監聽的 socket */close(listen_fd);listen_fd = -1;/* 釋放 CTX */SSL_CTX_free(ctx);ctx = nullptr;return 0;
}

客戶端 client

#include <cstdio>
#include <cstring>
#include <cerrno>
#include <sys/socket.h>
#include <cstdlib>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <openssl/ssl.h>
#include <openssl/err.h>#define MAXBUF 1024void ShowCerts(SSL * ssl)
{X509 *cert;char *line;cert = SSL_get_peer_certificate(ssl);// SSL_get_verify_result()是重點，SSL_CTX_set_verify()只是配置啟不啟用并沒有執行認證，調用該函數才會真證進行證書認證// 如果驗證不通過，那么程序拋出異常中止連接if(SSL_get_verify_result(ssl) == X509_V_OK){printf("證書驗證通過\n");}if (cert != nullptr) {printf("數字證書信息:\n");line = X509_NAME_oneline(X509_get_subject_name(cert), nullptr, 0);printf("證書: %s\n", line);free(line);line = X509_NAME_oneline(X509_get_issuer_name(cert), nullptr, 0);printf("頒發者: %s\n", line);free(line);X509_free(cert);} elseprintf("無證書信息！\n");
}static void PrintData(char *p, char *buf,int len,char *filename)
{char *name=p;printf("%s[%d]:\n",p,len);for (p=buf; p && p++-buf<len;)printf("%02x%c",(unsigned char)p[-1],(!((p-buf)%16) || p-buf==len)?'\n':' ');
//	if (filename) FileWrite(name,buf,len,filename);
}int main(int argc, char **argv)
{int sock_fd = -1;            /* TCP套接字    */int len = 0;                 /* SSL會話環境 */SSL *ssl = nullptr;          /* SSL安全套接字 */struct sockaddr_in ser_addr; /* 服務器地址 */bzero(&ser_addr, sizeof(ser_addr));SSL_CTX *ctx = nullptr;char buffer[MAXBUF + 1];if( argc != 3 ){printf("argcment wrong:ip port content\n");exit(0);}/* SSL 庫初始化，參看 ssl-server.c 代碼 */SSL_library_init();SSLeay_add_ssl_algorithms();OpenSSL_add_all_algorithms();SSL_load_error_strings();
//    ERR_load_BIO_strings();do{/* 申請SSL會話環境 */if( nullptr==(ctx=SSL_CTX_new(TLSv1_2_method())) )    //使用SSL_CTX_new()創建會話環境，建立連接時要使用協議由TLS_client_method()來定，服務器由對應的TLS_server_method()來定。如果這一步出錯，需要查看錯誤棧來查看原因{ERR_print_errors_fp(stdout);break;}//指定密碼算法套件// gmssl ciphers -V 明確支持SSL_CTX_set_cipher_list(ctx,"ECDHE-SM2-WITH-SMS4-GCM-SM3");// SM2-XXX
//        SSL_CTX_set_cipher_list(ctx,"GMTLS_SM2DHE_SM2SIGN_WITH_SMS4_SM3"); //{0xe0,0x11}
//        SSL_CTX_set_cipher_list(ctx,"GMTLS_SM2ENC_WITH_SMS4_SM3"); //{0xe0,0x13}// 雙向驗證// SSL_VERIFY_PEER---要求對證書進行認證，沒有證書也會放行// SSL_VERIFY_FAIL_IF_NO_PEER_CERT---要求客戶端需要提供證書，但驗證發現單獨使用沒有證書也會放行SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT, nullptr);// 設置信任根證書if (SSL_CTX_load_verify_locations(ctx, "/home/chy-cpabe/CLionProjects/learn_GmSSL_server/pem/CaCert.pem",nullptr)<=0)
//        if(SSL_CTX_load_verify_locations(ctx, "/home/chy-cpabe/ssl_server_client.openssl_bak/ca/ca.crt", nullptr) != 1){ERR_print_errors_fp(stdout);exit(1);}/* 載入用戶的數字證書， 此證書用來發送給客戶端。 證書里包含有公鑰 */if (SSL_CTX_use_certificate_file(ctx, "/home/chy-cpabe/CLionProjects/ssl_client/src/pem/TerminalCert.pem", SSL_FILETYPE_PEM) <= 0)
//        if (SSL_CTX_use_certificate_file(ctx, "/home/chy-cpabe/ssl_server_client.openssl_bak/client/pem/client.crt", SSL_FILETYPE_PEM) <= 0){ERR_print_errors_fp(stdout);exit(1);}/* 載入用戶私鑰 */if (SSL_CTX_use_PrivateKey_file(ctx, "/home/chy-cpabe/CLionProjects/ssl_client/src/pem/TerminalKey.pem", SSL_FILETYPE_PEM) <= 0)
//        if (SSL_CTX_use_PrivateKey_file(ctx, "/home/chy-cpabe/ssl_server_client.openssl_bak/client/pem/client_rsa_private.pem.unsecure", SSL_FILETYPE_PEM) <= 0){ERR_print_errors_fp(stdout);exit(1);}/* 檢查用戶私鑰是否正確 */if (!SSL_CTX_check_private_key(ctx)) {ERR_print_errors_fp(stdout);exit(1);}//https://www.openssl.org/docs/man1.0.2/man3/SSL_CTX_set_mode.htmlSSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY);/* 創建一個 socket 用于 tcp 通信 */if(-1==(sock_fd=socket(AF_INET, SOCK_STREAM, 0)) ){printf("creat socket wrong\n");break;}printf("socket created\n");/* 初始化服務器端（對方）的地址和端口信息 */ser_addr.sin_family = AF_INET;ser_addr.sin_port = htons(atoi(argv[2]));ser_addr.sin_addr.s_addr = inet_addr(argv[1]);//將網絡地址轉成網絡二進制的數字//http://c.biancheng.net/cpp/html/362.html//另外一種寫法
/*		if (inet_aton(argv[1], (struct in_addr *) &ser_addr.sin_addr.s_addr) == 0) {perror(argv[1]);exit(errno);}
*/printf("address created\n");//建立連接if( -1==(connect(sock_fd, (struct sockaddr *)&ser_addr, sizeof(ser_addr))) ){printf("connect wrong\n");break;}printf("server connected\n");/* 基于 ctx 產生一個新的 SSL */ssl = SSL_new(ctx);SSL_set_fd(ssl, sock_fd);/* 建立 SSL 連接 */if (SSL_connect(ssl) == -1)ERR_print_errors_fp(stderr);else {printf("The relevant information is as follows:\n");printf("-->ssl version %s\n",SSL_get_version(ssl));printf("-->ssleay version %s\n",SSLeay_version(0));printf("-->Connected with %s encryption\n", SSL_get_cipher(ssl));ShowCerts(ssl);}//導出key和saltunsigned char buf[16];int err = -1;err = SSL_export_keying_material(ssl, buf, 16, nullptr,0, nullptr, 0, 1);if(err != 1){printf("err=%d\n",err);}else{PrintData("SSL_export_keying_material", (char*)buf, 16, nullptr);}/* 接收對方發過來的消息，最多接收 MAXBUF 個字節 */bzero(buffer, MAXBUF + 1);/* 接收服務器來的消息 */len = SSL_read(ssl, buffer, MAXBUF);if (len > 0)printf("接收消息成功:'%s'，共%d個字節的數據\n",buffer, len);else {printf("消息接收失敗！錯誤代碼是%d，錯誤信息是'%s'\n",errno, strerror(errno));goto finish;}bzero(buffer, MAXBUF + 1);strcpy(buffer, "from client->server");/* 發消息給服務器 */len = SSL_write(ssl, buffer, strlen(buffer));if (len < 0)printf("消息'%s'發送失敗！錯誤代碼是%d，錯誤信息是'%s'\n",buffer, errno, strerror(errno));elseprintf("消息'%s'發送成功，共發送了%d個字節！\n",buffer, len);/* 處理每個新連接上的數據收發結束 */finish:/* 關閉 SSL 連接 */SSL_shutdown(ssl);/* 釋放 SSL */SSL_free(ssl);ssl = nullptr;}while(0);/* 關閉socket */close(sock_fd);sock_fd = -1;/* 釋放 CTX */SSL_CTX_free(ctx);ctx = nullptr;return 0;
}