参考链接
- 列出gmssl支持的国密算法TLS1.x密码套件_liuqun69的博客-CSDN博客
- 使用Clion和gmssl动态库实现服务器server和客户端client之间的SSL通信_MY CUP OF TEA的博客-CSDN博客
注意事项
GM/T 标准涵盖 2 个协议：- SSL VPN 协议 (GM/T 0024-2014)- IPSec VPN 协议 (GM/T 0022-2014)GM/T 0024-2014 SSL VPN 协议与 IETF TLS 在以下方面有所不同：- 当前版本的 TLS 是 1.3 (0x0304)，而 GM/T SSL 版本是 1.1 (0x0102)。- GM/T SSL 的握手协议与 TLS 握手不同。- 为 VPN 应用设计的 GM/T SSL 中有一个可选的不同记录协议。- GM/T SSL 有 12 个密码套件，其中一些密码不提供前向保密。GM/T 0024-2014 密码套件：```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
- 虽然gmssl的源码文件夹里面的 README.md 明确指出，其支持国密算法12种算法套件
- 但是，使用命令 gmssl ciphers -V 列举其支持的算法TLS1.x密码套件，却根本不涵盖上述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
- 添加代码如下
- 原因
- ca、服务器和客户端的证书 均为国密证书
- /* 申请SSL会话环境 */ if( nullptr==(ctx=SSL_CTX_new(TLSv1_2_method())) ) //使用SSL_CTX_new()创建会话环境，建立连接时要使用协议由TLS_client_method()来定，服务器由对应的TLS_server_method()来定。如果这一步出错，需要查看错误栈来查看原因；指定了TLSv1_2_method模式
//指定密码算法套件// gmssl ciphers -V 明确支持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 是默认的算法，且是gmssl自我实现的算法，并未得到官方认证
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 支持带有 SM2/SM3/SM4 密码套件的标准 TLS 1.2 协议以及 GM/T SSL VPN 协议和密码套件。 目前支持以下密码套件：```
ECDHE-SM2-WITH-SMS4-SM3
ECDHE-SM2-WITH-SMS4-SHA256
代码
服务端 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()是重点，SSL_CTX_set_verify()只是配置启不启用并没有执行认证，调用该函数才会真证进行证书认证// 如果验证不通过，那么程序抛出异常中止连接if(SSL_get_verify_result(ssl) == X509_V_OK){printf("证书验证通过\n");}if (cert != nullptr) {printf("数字证书信息:\n");line = X509_NAME_oneline(X509_get_subject_name(cert), nullptr, 0);printf("证书: %s\n", line);free(line);line = X509_NAME_oneline(X509_get_issuer_name(cert), nullptr, 0);printf("颁发者: %s\n", line);free(line);X509_free(cert);} elseprintf("无证书信息！\n");
}int main(int argc, char **argv) {int listen_fd = -1; /* TCP监听套接字 */int accept_fd = -1; /* 已连接TCP套接字 */struct sockaddr_in server_addr, client_addr;bzero(&server_addr, sizeof(server_addr));SSL_CTX *ctx = nullptr; /* SSL会话环境 */SSL *ssl = nullptr; /* SSL安全套接字 */socklen_t len;char buf[MAXBUF]={0}; /* 服务器接收数据buffer */if( 3!=argc ){printf("argcment wrong:ip port\n");}SSL_library_init(); /* SSL 库初始化 */SSLeay_add_ssl_algorithms();OpenSSL_add_all_algorithms(); /* 载入所有 SSL 算法 */SSL_load_error_strings(); /* 载入所有 SSL 错误消息 */
// ERR_load_BIO_strings();//TCP服务器：创建、绑定、监听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()创建会话环境，建立连接时要使用协议由TLS_server_method()来定。如果这一步出错，需要查看错误栈来查看原因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);//指定密码算法套件// gmssl ciphers -V 明确支持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}// 双向验证// SSL_VERIFY_PEER---要求对证书进行认证，没有证书也会放行// SSL_VERIFY_FAIL_IF_NO_PEER_CERT---要求客户端需要提供证书，但验证发现单独使用没有证书也会放行SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT, nullptr);// 设置信任根证书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;}/* 载入用户的数字证书， 此证书用来发送给客户端。 证书里包含有公钥 */if( 0>=SSL_CTX_use_certificate_file(ctx, "/home/chy-cpabe/CLionProjects/learn_GmSSL_server/pem/HuiguanCert.pem", SSL_FILETYPE_PEM/*SSL_FILETYPE_ASN1*/) ) /* 为SSL会话加载用户证书 */
// 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*/) ) /* 为SSL会话加载用户证书 */{ERR_print_errors_fp(stdout);break;}/* 载入用户私钥 */if( 0>=SSL_CTX_use_PrivateKey_file(ctx, "/home/chy-cpabe/CLionProjects/learn_GmSSL_server/pem/HuiguanKey.pem", SSL_FILETYPE_PEM/*SSL_FILETYPE_ASN1*/) ) /* 为SSL会话加载用户私钥 */
// 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*/) ) /* 为SSL会话加载用户私钥 */{ERR_print_errors_fp(stdout);break;}/* 检查用户私钥是否正确 */if(!SSL_CTX_check_private_key(ctx)) /* 验证私钥和证书是否相符 */{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);/* 等待客户端连上来 */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 产生一个新的 SSL */SSL_set_fd(ssl, accept_fd); /* 将连接用户的 socket 加入到 SSL *//* 建立 SSL 连接 */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);/* 开始处理每个新连接上的数据收发 */bzero(buf, MAXBUF + 1);strcpy(buf, "server->client");/* 发消息给客户端 */len = SSL_write(ssl, buf, strlen(buf));if (len <= 0) {printf("消息'%s'发送失败！错误代码是%d，错误信息是'%s'\n", buf, errno,strerror(errno));goto finish;} elseprintf("消息'%s'发送成功，共发送了%d个字节！\n", buf, len);bzero(buf, MAXBUF + 1);/* 接收客户端的消息 */len = SSL_read(ssl, buf, MAXBUF);if (len > 0)printf("接收消息成功:'%s'，共%d个字节的数据\n", buf, len);elseprintf("消息接收失败！错误代码是%d，错误信息是'%s'\n",errno, strerror(errno));/* 处理每个新连接上的数据收发结束 */finish:/* 关闭 SSL 连接 */SSL_shutdown(ssl);/* 释放 SSL */SSL_free(ssl);ssl = nullptr;/* 关闭 socket */close(accept_fd);accept_fd = -1;}while(1);/* 关闭监听的 socket */close(listen_fd);listen_fd = -1;/* 释放 CTX */SSL_CTX_free(ctx);ctx = nullptr;return 0;
}
客户端 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()是重点，SSL_CTX_set_verify()只是配置启不启用并没有执行认证，调用该函数才会真证进行证书认证// 如果验证不通过，那么程序抛出异常中止连接if(SSL_get_verify_result(ssl) == X509_V_OK){printf("证书验证通过\n");}if (cert != nullptr) {printf("数字证书信息:\n");line = X509_NAME_oneline(X509_get_subject_name(cert), nullptr, 0);printf("证书: %s\n", line);free(line);line = X509_NAME_oneline(X509_get_issuer_name(cert), nullptr, 0);printf("颁发者: %s\n", line);free(line);X509_free(cert);} elseprintf("无证书信息！\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会话环境 */SSL *ssl = nullptr; /* SSL安全套接字 */struct sockaddr_in ser_addr; /* 服务器地址 */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 库初始化，参看 ssl-server.c 代码 */SSL_library_init();SSLeay_add_ssl_algorithms();OpenSSL_add_all_algorithms();SSL_load_error_strings();
// ERR_load_BIO_strings();do{/* 申请SSL会话环境 */if( nullptr==(ctx=SSL_CTX_new(TLSv1_2_method())) ) //使用SSL_CTX_new()创建会话环境，建立连接时要使用协议由TLS_client_method()来定，服务器由对应的TLS_server_method()来定。如果这一步出错，需要查看错误栈来查看原因{ERR_print_errors_fp(stdout);break;}//指定密码算法套件// gmssl ciphers -V 明确支持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}// 双向验证// SSL_VERIFY_PEER---要求对证书进行认证，没有证书也会放行// SSL_VERIFY_FAIL_IF_NO_PEER_CERT---要求客户端需要提供证书，但验证发现单独使用没有证书也会放行SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT, nullptr);// 设置信任根证书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);}/* 载入用户的数字证书， 此证书用来发送给客户端。 证书里包含有公钥 */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);}/* 载入用户私钥 */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);}/* 检查用户私钥是否正确 */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);/* 创建一个 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");/* 初始化服务器端（对方）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]);//将网络地址转成网络二进制的数字//http://c.biancheng.net/cpp/html/362.html//另外一种写法
/* if (inet_aton(argv[1], (struct in_addr *) &ser_addr.sin_addr.s_addr) == 0) {perror(argv[1]);exit(errno);}
*/printf("address created\n");//建立连接if( -1==(connect(sock_fd, (struct sockaddr *)&ser_addr, sizeof(ser_addr))) ){printf("connect wrong\n");break;}printf("server connected\n");/* 基于 ctx 产生一个新的 SSL */ssl = SSL_new(ctx);SSL_set_fd(ssl, sock_fd);/* 建立 SSL 连接 */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);}//导出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);}/* 接收对方发过来的消息，最多接收 MAXBUF 个字节 */bzero(buffer, MAXBUF + 1);/* 接收服务器来的消息 */len = SSL_read(ssl, buffer, MAXBUF);if (len > 0)printf("接收消息成功:'%s'，共%d个字节的数据\n",buffer, len);else {printf("消息接收失败！错误代码是%d，错误信息是'%s'\n",errno, strerror(errno));goto finish;}bzero(buffer, MAXBUF + 1);strcpy(buffer, "from client->server");/* 发消息给服务器 */len = SSL_write(ssl, buffer, strlen(buffer));if (len < 0)printf("消息'%s'发送失败！错误代码是%d，错误信息是'%s'\n",buffer, errno, strerror(errno));elseprintf("消息'%s'发送成功，共发送了%d个字节！\n",buffer, len);/* 处理每个新连接上的数据收发结束 */finish:/* 关闭 SSL 连接 */SSL_shutdown(ssl);/* 释放 SSL */SSL_free(ssl);ssl = nullptr;}while(0);/* 关闭socket */close(sock_fd);sock_fd = -1;/* 释放 CTX */SSL_CTX_free(ctx);ctx = nullptr;return 0;
}
测试
