misc/rust_fixme_2

2026-07-02 00:34:12 +09:00
parent ded7401a4a
commit 997036d28a
3 changed files with 113 additions and 0 deletions
@@ -0,0 +1,70 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
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+dependencies = [
+ "crossbeam-epoch",
+ "crossbeam-utils",
+]
+
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+ "crossbeam-utils",
+]
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+ "either",
+ "rayon-core",
+]
+
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+dependencies = [
+ "crossbeam-deque",
+ "crossbeam-utils",
+]
+
+[[package]]
+name = "rust_proj"
+version = "0.1.0"
+dependencies = [
+ "xor_cryptor",
+]
+
+[[package]]
+name = "xor_cryptor"
+version = "1.2.3"
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+dependencies = [
+ "rayon",
+]
@@ -0,0 +1,7 @@
+[package]
+name = "rust_proj"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+xor_cryptor = "1.2.3"
@@ -0,0 +1,36 @@
+use xor_cryptor::XORCryptor;
+
+fn decrypt(encrypted_buffer:Vec<u8>, borrowed_string: &mut String){ // How do we pass values to a function that we want to change?
+
+    // Key for decryption
+    let key = String::from("CSUCKS");
+
+    // Editing our borrowed value
+    borrowed_string.push_str("PARTY FOUL! Here is your flag: ");
+
+    // Create decrpytion object
+    let res = XORCryptor::new(&key);
+    if res.is_err() {
+        return; // How do we return in rust?
+    }
+    let xrc = res.unwrap();
+
+    // Decrypt flag and print it out
+    let decrypted_buffer = xrc.decrypt_vec(encrypted_buffer);
+    borrowed_string.push_str(&String::from_utf8_lossy(&decrypted_buffer));
+    println!("{}", borrowed_string);
+}
+
+
+fn main() {
+    // Encrypted flag values
+    let hex_values = ["41", "30", "20", "63", "4a", "45", "54", "76", "01", "1c", "7e", "59", "63", "e1", "61", "25", "0d", "c4", "60", "f2", "12", "a0", "18", "03", "51", "03", "36", "05", "0e", "f9", "42", "5b"];
+
+    // Convert the hexadecimal strings to bytes and collect them into a vector
+    let encrypted_buffer: Vec<u8> = hex_values.iter()
+        .map(|&hex| u8::from_str_radix(hex, 16).unwrap())
+        .collect();
+
+    let mut party_foul = String::from("Using memory unsafe languages is a: "); // Is this variable changeable?
+    decrypt(encrypted_buffer, &mut party_foul); // Is this the correct way to pass a value to a function so that it can be changed?
+}