minor fixes + random password generation was implemented

regress/zip_write_encrypt_aes256_file_fuzzer.cc

@@ -12,7 +12,7 @@ extern "C"
 
 /**
 This fuzzing target takes input data, creates a ZIP archive, load it to a buffer, adds a file to it 
-with AES-128 encryption and a specified password, and then closes and removes the archive. 
+with AES-256 encryption and a specified password, and then closes and removes the archive. 
 
 The purpose of this fuzzer is to test security of ZIP archive handling and encryption in the libzip 
 by subjecting it to various inputs, including potentially malicious or malformed data of different file types.
@@ -27,8 +27,8 @@ int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
     zip_file_t* f;
 
     std::string path = random_string(20) + "_aes256"+ ".zip";
-    const char *password = "secretpassword";
-    const char * file    = "file";   
+    const char *password = random_string(20).c_str();
+    const char * file    = random_string(20).c_str();   
     int error = 0;
     struct zip *archive = zip_open(path.c_str(), ZIP_CREATE, &error);
 
@@ -46,9 +46,8 @@ int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
         printf("failed to add file to archive: %s\n",zip_strerror(archive));
         return -1;
     }
-    zip_file_set_encryption(archive, index, ZIP_EM_AES_128, password);
+    zip_file_set_encryption(archive, index, ZIP_EM_AES_256, password);
     zip_close(archive);
-    //fclose
     std::remove(path.c_str()); 
 
     return 0;

regress/zip_write_encrypt_pkware_file_fuzzer.cc

@@ -27,8 +27,8 @@ int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
     zip_file_t* f;
 
     std::string path = random_string(20) + "_pkware"+ ".zip";
-    const char *password = "secretpassword";
-    const char * file    = "file";   
+    const char *password = random_string(20).c_str();
+    const char * file    = random_string(20).c_str();
     int error = 0;
     struct zip *archive = zip_open(path.c_str(), ZIP_CREATE, &error);