OpenSSL LNK2019 错误

如何解决OpenSSL LNK2019 错误

我正在尝试将 OpenSSL 与我在 Visual Studio 2019 中的 C++ 项目链接。我收到以下错误：

Error   LNK2019 unresolved external symbol _EVP_EncryptUpdate referenced in function _main  Crypter2    C:\Users\jcava\source\repos\Crypter2\Crypter2\encryption.obj    1   
Error   LNK2019 unresolved external symbol _ERR_print_errors_fp referenced in function _handleErrors    Crypter2    C:\Users\jcava\source\repos\Crypter2\Crypter2\encryption.obj    1   
Error   LNK2019 unresolved external symbol _EVP_aes_128_cbc referenced in function _main    Crypter2    C:\Users\jcava\source\repos\Crypter2\Crypter2\encryption.obj    1   
Error   LNK2019 unresolved external symbol _EVP_CIPHER_CTX_new referenced in function _main Crypter2    C:\Users\jcava\source\repos\Crypter2\Crypter2\encryption.obj    1   
Error   LNK2019 unresolved external symbol _EVP_CIPHER_CTX_reset referenced in function _main   Crypter2    C:\Users\jcava\source\repos\Crypter2\Crypter2\encryption.obj    1   
Error   LNK2019 unresolved external symbol _EVP_Decryptinit_ex referenced in function _main Crypter2    C:\Users\jcava\source\repos\Crypter2\Crypter2\encryption.obj    1   
Error   LNK2019 unresolved external symbol _EVP_DecryptUpdate referenced in function _main  Crypter2    C:\Users\jcava\source\repos\Crypter2\Crypter2\encryption.obj    1   
Error   LNK2019 unresolved external symbol _EVP_EncryptFinal_ex referenced in function _main    Crypter2    C:\Users\jcava\source\repos\Crypter2\Crypter2\encryption.obj    1   
Error   LNK2019 unresolved external symbol _EVP_Encryptinit_ex referenced in function _main Crypter2    C:\Users\jcava\source\repos\Crypter2\Crypter2\encryption.obj    1   

在VC++目录下我在include下添加：

"C:\Program Files (x86)\OpenSSL\include";

我在库目录下添加：

"C:\Program Files (x86)\OpenSSL\lib";

在链接器常规下我在附加库目录下添加：

"C:\Program Files (x86)\OpenSSL\lib";

我的完整源代码是：

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <openssl/conf.h>
#include <openssl/evp.h>
#include <openssl/err.h>
#include <openssl/aes.h>
#include <winsock2.h>
#include <windows.h>
#pragma comment(lib,"ws2_32.lib")
#pragma comment(lib,"crypt32.lib")
#pragma comment(lib,"user32.lib")
#pragma comment(lib,"advapi32.lib")


void handleErrors(void){
  ERR_print_errors_fp(stderr);
  abort();
}

int main(){
  //read in the exe file and convert its bytes to a string
  FILE *inFile;
  inFile = fopen("Quasar.exe","rb");
  if (inFile == NULL){
    perror("Failed to read in file\n");
  }

  printf("File read in complete!\n");

  if(fseek(inFile,SEEK_END) == -1){
    perror("Offset error\n");
  };
    unsigned long lSize = ftell(inFile);
  if (lSize == -1){
    perror("Size error\n");
  }
    rewind(inFile);

  unsigned char *unencryptedText = (unsigned char*) malloc (sizeof(unsigned char)*lSize);
  if (unencryptedText != NULL) {
      fread(unencryptedText,1,lSize,inFile);
  }
  else {
      printf("File error");
      exit(0);
  }
  fclose(inFile);

  unsigned char *encryptedText = (unsigned char*) malloc (3 *(sizeof(unsigned char)*lSize));

  //encrypt these bytes with open ssl
  printf("Encrypting...\n");
  int outlen,tmplen;
  unsigned char key[] = {0,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
  unsigned char iv[] = {1,8};
  EVP_CIPHER_CTX* ctx = EVP_CIPHER_CTX_new();

  EVP_CIPHER_CTX_init(ctx);
  EVP_Encryptinit_ex(ctx,EVP_aes_128_cbc(),NULL,key,iv);

  if(EVP_EncryptUpdate(ctx,encryptedText,&outlen,unencryptedText,lSize *sizeof(char)) == 0){
    ERR_print_errors_fp(stderr);
    return 0;
  }
      
  if(EVP_EncryptFinal_ex(ctx,encryptedText + outlen,&tmplen) == 0){
    ERR_print_errors_fp (stderr);
    return 0;
  }
  outlen += tmplen;
  EVP_CIPHER_CTX_cleanup(ctx);
  printf("Encrypt Success!\n");

  char absPath[500];
    strcpy (absPath,"encrypted.dat");
    FILE *outFile = fopen(absPath,"wb");
    if (encryptedText != NULL) {
        fwrite(encryptedText,outFile);
    }
    else {
        perror("File is null");
    }
    fclose (outFile);


//decrypt the files
unsigned char *decryptedText = (unsigned char*) malloc (sizeof(unsigned char)*lSize);
EVP_Decryptinit_ex(ctx,iv);

if(EVP_DecryptUpdate(ctx,decryptedText,lSize) == 0){
  ERR_print_errors_fp (stderr);
  return 0;
}

EVP_CIPHER_CTX_cleanup(ctx);
printf("Decrypt Success!\n");


return 0;
}

我在这里做错了什么？提前致谢！！