错误:聚合“HMAC_CTX ctx”类型不完整，无法定义
错误:聚合“HMAC_CTX ctx”类型不完整，无法定义
提问于 2020-08-04 22:47:47
在编译我的应用程序时，我试图了解出了什么问题，并得到了以下错误：
security.cpp: In member function ‘void Crypt::load()’:
security.cpp:16:21: warning: ‘void OPENSSL_config(const char*)’ is deprecated [-Wdeprecated-declarations]
OPENSSL_config(NULL);
^
In file included from /usr/local/include/openssl/e_os2.h:13:0,
from /usr/local/include/openssl/bio.h:13,
from /usr/local/include/openssl/conf.h:13,
from security.h:5,
from security.cpp:1:
/usr/local/include/openssl/conf.h:91:25: note: declared here
DEPRECATEDIN_1_1_0(void OPENSSL_config(const char *config_name))
^
security.cpp: In member function ‘void Integrity::get_hmac(uint8_t*, int, uint8_t*, uint64_t)’:
security.cpp:112:11: error: aggregate ‘HMAC_CTX ctx’ has incomplete type and cannot be defined
HMAC_CTX ctx;
^~~
security.cpp:115:2: error: ‘HMAC_CTX_init’ was not declared in this scope
HMAC_CTX_init(&ctx);
^~~~~~~~~~~~~
security.cpp:115:2: note: suggested alternative: ‘HMAC_CTX_new’
HMAC_CTX_init(&ctx);
^~~~~~~~~~~~~
HMAC_CTX_new
security.cpp:119:2: error: ‘HMAC_CTX_cleanup’ was not declared in this scope
HMAC_CTX_cleanup(&ctx);
^~~~~~~~~~~~~~~~
security.cpp:119:2: note: suggested alternative: ‘HMAC_CTX_get_md’
HMAC_CTX_cleanup(&ctx);
^~~~~~~~~~~~~~~~
HMAC_CTX_get_md
Makefile:25: recipe for target 'security.o' failed
make: *** [security.o] Error 1我的cpp文件的一些代码部分：
security.cpp：
Crypt g_crypt;
Integrity g_integrity;
Crypt::Crypt() {
key = (uint8_t *)"01234567890123456789012345678901";
iv = (uint8_t *)"01234567890123456";
load();
}
void Crypt::load() {
ERR_load_crypto_strings();
OpenSSL_add_all_algorithms();
OPENSSL_config(NULL);
}
......
......
......
......
void Integrity::get_hmac(uint8_t *data, int data_len, uint8_t *hmac, uint64_t k_nas_int) {
HMAC_CTX ctx;
int res_len;
HMAC_CTX_init(&ctx);
HMAC_Init_ex(&ctx, key, strlen((const char*)key), EVP_sha1(), NULL);
HMAC_Update(&ctx, data, data_len);
HMAC_Final(&ctx, hmac, (unsigned int*)&res_len);
HMAC_CTX_cleanup(&ctx);
}安全。H：
#ifndef SECURITY_H
#define SECURITY_H
/* (C) OPENSSL_config */
#include </usr/local/include/openssl/conf.h>
/* (C) EVP_* */
#include </usr/local/include/openssl/evp.h>
/* (C) ERR_* */
#include </usr/local/include/openssl/err.h>
/* (C) HMAC_* */
#include </usr/local/include/openssl/hmac.h>
#include "packet.h"
#include "utils.h"
#define HMAC_ON 1
#define ENC_ON 1
const int HMAC_LEN = 20;
class Crypt {
private:
uint8_t *key;
uint8_t *iv;
void load();
int enc_data(uint8_t*, int, uint8_t*, uint64_t);
int dec_data(uint8_t*, int, uint8_t*, uint64_t);
void handle_crypt_error();
public:
Crypt();
void enc(Packet&, uint64_t);
void dec(Packet&, uint64_t);
~Crypt();
};
class Integrity {
private:
uint8_t *key;
public:
Integrity();
void add_hmac(Packet&, uint64_t);
void get_hmac(uint8_t*, int, uint8_t*, uint64_t);
void rem_hmac(Packet&, uint8_t*);
bool hmac_check(Packet&, uint64_t);
bool cmp_hmacs(uint8_t*, uint8_t*);
void print_hmac(uint8_t*);
~Integrity();
};
extern Crypt g_crypt;
extern Integrity g_integrity;
void encrypt_add_hmac(Packet &pkt);
void decrypt_remove_hmac(Packet &pkt);现在，我已经看到了OpenSSL version>1.1.0的一些变化，就像建议的SHA256 HMAC使用OpenSSL 1.1不编译一样，但是当我这样做时，我得到了一个矮小错误，尽管我做了一个
洗净
然后
制作
顺便说一句，我的Makefile (停止的地方)看起来像这样
G++ = g++ -std=c++0x -std=c++11 -std=gnu++0x -ggdb -O3 -fpermissive -Wno-narrowing
security.o: packet.h security.cpp security.h utils.h
$(G++) -c -o security.o security.cpp -lcrypto我很感激任何建议的解决办法，因为我被塞在里面两天了。
回答 1
Stack Overflow用户
回答已采纳
发布于 2020-08-04 23:09:58
在最近版本的OpenSSL中(我认为从1.1.0开始)，以前公开声明的许多结构现在已经成为私有的，并且只作为不完整的类型出现在公共头文件中。因此，您不能在代码中直接使用它们(只能使用指针)。
因此，生成HMAC的方式略有改变。将res_len声明为unsigned int以消除这种丑陋的角色也更有意义：
void Integrity::get_hmac(uint8_t *data, int data_len, uint8_t *hmac, uint64_t k_nas_int) {
HMAC_CTX *ctx;
unsigned int res_len;
ctx = HMAC_CTX_new();
HMAC_Init_ex(ctx, key, strlen((const char*)key), EVP_sha1(), NULL);
HMAC_Update(ctx, data, data_len);
HMAC_Final(ctx, hmac, &res_len);
HMAC_CTX_free(ctx);
}文档这里。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/63256081
复制相关文章
相似问题
腾讯云开发者
