conan openssl:

https://conan.io/center/openssl

ubuntu需要安装：

shell
 sudo apt-get install libvulkan-dev

示例代码：

c
#include <openssl/md5.h>
std::string md5sum(const std::string& str) {
    std::string md5;
    MD5_CTX ctx;
    MD5_Init(&ctx);
    MD5_Update(&ctx, str.c_str(), str.size());
    unsigned char digest[MD5_DIGEST_LENGTH];
    MD5_Final(digest, &ctx);
    char hex[35];
    memset(hex, 0, sizeof(hex));
    for (int i = 0; i < MD5_DIGEST_LENGTH; ++i) {
        sprintf(hex + i * 2, "%02x", digest[i]);
    }
    md5 = std::string(hex);
    return md5;
}