feat: 更新base64位源码地址

Log:

Bug:

Openssl/hash/base64/main.cpp

+#include <iostream>
+#include <cstring>
+#include <openssl/bio.h>
+#include <openssl/evp.h>
+#include <openssl/buffer.h>
+
+std::string base64_encode(const unsigned char* input, int length) {
+    BIO* bio = BIO_new(BIO_f_base64());
+    BIO_set_flags(bio, BIO_FLAGS_BASE64_NO_NL);
+
+    BIO* bmem = BIO_new(BIO_s_mem());
+    bio = BIO_push(bio, bmem);
+
+    BIO_write(bio, input, length);
+    BIO_flush(bio);
+
+    BUF_MEM* bptr;
+    BIO_get_mem_ptr(bio, &bptr);
+
+    std::string result(bptr->data, bptr->length);
+
+    BIO_free_all(bio);
+
+    return result;
+}
+
+std::string base64_decode(const char* input) {
+    BIO* bio = BIO_new(BIO_f_base64());
+    BIO_set_flags(bio, BIO_FLAGS_BASE64_NO_NL);
+
+    BIO* bmem = BIO_new_mem_buf(input, -1);
+    bio = BIO_push(bio, bmem);
+
+    char buffer[1024];
+    int length = BIO_read(bio, buffer, sizeof(buffer));
+
+    BIO_free_all(bio);
+
+    return std::string(buffer, length);
+}
+
+int main() {
+    const char* originalText = "Hello, Base64!";
+    int originalLength = std::strlen(originalText);
+
+    // Base64 编码
+    std::string encodedText = base64_encode(reinterpret_cast<const unsigned char*>(originalText), originalLength);
+    std::cout << "Base64 Encoded: " << encodedText << std::endl;
+
+    // Base64 解码
+    std::string decodedText = base64_decode(encodedText.c_str());
+    std::cout << "Base64 Decoded: " << decodedText << std::endl;
+
+    return 0;
+}