HarmonyOS 鸿蒙Next c++里面如何对 char*=“string” 进行MD5加密

使用 OpenSSL 库中的 MD5 函数对给定的字符串进行加密，并将加密后的结果以十六进制字符串的形式返回。

#include <iostream>
#include <openssl/md5.h>
std::string md5(const char* input) {
unsigned char digest[MD5_DIGEST_LENGTH];
MD5_CTX ctx;
MD5_Init(&ctx);
MD5_Update(&ctx, input, strlen(input));
MD5_Final(digest, &ctx);
<span class="hljs-keyword">char</span> md5string[<span class="hljs-number">33</span>];
<span class="hljs-keyword">for</span>(<span class="hljs-keyword">int</span> i = <span class="hljs-number">0</span>; i &lt; MD5_DIGEST_LENGTH; i++)
    <span class="hljs-built_in">sprintf</span>(&amp;md5string[i*<span class="hljs-number">2</span>], <span class="hljs-string">"%02x"</span>, (<span class="hljs-keyword">unsigned</span> <span class="hljs-keyword">int</span>)digest[i]);

<span class="hljs-keyword">return</span> <span class="hljs-built_in">std</span>::<span class="hljs-built_in">string</span>(md5string);
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使用加密函数：

int main() {
char* str = “string”;
std::string encryptedStr = md5(str);
std::cout << “加密后的字符串：” << encryptedStr << std::endl;
return 0;
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