37 lines
1.4 KiB
Rust
37 lines
1.4 KiB
Rust
use xor_cryptor::XORCryptor;
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fn decrypt(encrypted_buffer:Vec<u8>, borrowed_string: &mut String){ // How do we pass values to a function that we want to change?
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// Key for decryption
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let key = String::from("CSUCKS");
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// Editing our borrowed value
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borrowed_string.push_str("PARTY FOUL! Here is your flag: ");
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// Create decrpytion object
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let res = XORCryptor::new(&key);
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if res.is_err() {
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return; // How do we return in rust?
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}
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let xrc = res.unwrap();
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// Decrypt flag and print it out
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let decrypted_buffer = xrc.decrypt_vec(encrypted_buffer);
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borrowed_string.push_str(&String::from_utf8_lossy(&decrypted_buffer));
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println!("{}", borrowed_string);
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}
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fn main() {
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// Encrypted flag values
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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"];
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// Convert the hexadecimal strings to bytes and collect them into a vector
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let encrypted_buffer: Vec<u8> = hex_values.iter()
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.map(|&hex| u8::from_str_radix(hex, 16).unwrap())
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.collect();
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let mut party_foul = String::from("Using memory unsafe languages is a: "); // Is this variable changeable?
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decrypt(encrypted_buffer, &mut party_foul); // Is this the correct way to pass a value to a function so that it can be changed?
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}
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