Do not log blake3 hash to stdout, fixes #136

lib/src/lib.rs

@@ -45,7 +45,9 @@ pub extern fn blake3_PW(pw: *const c_char) -> *mut c_char{
     let data = passwd.as_bytes();
     // Hash an input all at once.
     let hash1 = blake3::hash(data).to_hex();
-    println!("\nBlake3 Hash: {}", hash1);
+    // This is sensitive metadata, do not log it to stdout
+    //println!("\nBlake3 Hash: {}", hash1);
+    println!("\nBlake3 Hash calculated");
 
     //let sttring = CString::new(hash1).unwrap();
     let e_str = CString::new(format!("{}", hash1)).unwrap();