Reformat Code

src/lib/crypt.rs

@@ -1,14 +1,14 @@
-use rand::Rng;
+use crate::lib::hash::{sha_checksum, PassKey};
+use cfb_mode::stream_cipher::{NewStreamCipher, StreamCipher};
 use cfb_mode::Cfb;
 use des::Des;
-use cfb_mode::stream_cipher::{NewStreamCipher, StreamCipher};
+use rand::Rng;
 use rayon::prelude::*;
-use crate::lib::hash::{PassKey, sha_checksum};
 
 type DesCfb = Cfb<Des>;
 
 pub struct EncryptionKeys {
-    current: u64
+    current: u64,
 }
 
 impl Iterator for EncryptionKeys {
@@ -27,9 +27,7 @@ impl Iterator for EncryptionKeys {
 
 impl EncryptionKeys {
     pub fn new() -> Self {
-        Self {
-            current: 0
-        }
+        Self { current: 0 }
     }
 }
 
@@ -54,7 +52,11 @@ pub fn decrypt_data(data: &[u8], key: &[u8]) -> Vec<u8> {
 }
 
 /// Decrypts data using a dictionary
-pub fn decrypt_with_dictionary(data: &[u8], dict: Vec<PassKey>, checksum: &[u8]) -> Option<Vec<u8>> {
+pub fn decrypt_with_dictionary(
+    data: &[u8],
+    dict: Vec<PassKey>,
+    checksum: &[u8],
+) -> Option<Vec<u8>> {
     let pass = dict.par_iter().find_first(|(_pw, key)| {
         let decrypted_data = decrypt_data(&data, key);
         let decr_check = sha_checksum(&decrypted_data);
@@ -75,17 +77,19 @@ pub fn decrypt_with_dictionary(data: &[u8], dict: Vec<PassKey>, checksum: &[u8])
 
 /// Decrypts data by generating all possible keys
 pub fn decrypt_brute_brute_force(data: &[u8], checksum: &[u8]) -> Option<Vec<u8>> {
-    let encryption_key = (0u64..std::u64::MAX).into_par_iter().find_first(|num: &u64| {
-        let key: &[u8] = &num.to_le_bytes();
-        let decrypted_data = decrypt_data(&data, key);
-        let decr_check = sha_checksum(&decrypted_data);
+    let encryption_key = (0u64..std::u64::MAX)
+        .into_par_iter()
+        .find_first(|num: &u64| {
+            let key: &[u8] = &num.to_le_bytes();
+            let decrypted_data = decrypt_data(&data, key);
+            let decr_check = sha_checksum(&decrypted_data);
 
-        if decr_check == checksum {
-            true
-        } else {
-            false
-        }
-    });
+            if decr_check == checksum {
+                true
+            } else {
+                false
+            }
+        });
     if let Some(num) = encryption_key {
         let key: &[u8] = &num.to_le_bytes();
         println!("Key found: {:?}", key);
@@ -93,4 +97,4 @@ pub fn decrypt_brute_brute_force(data: &[u8], checksum: &[u8]) -> Option<Vec<u8>
     } else {
         None
     }
-}
+}

src/lib/hash.rs

@@ -1,5 +1,5 @@
-use sha2::{Sha256, Digest};
 use rayon::prelude::*;
+use sha2::{Digest, Sha256};
 
 pub type PassKey = (String, Vec<u8>);
 
@@ -14,10 +14,13 @@ pub fn create_key(pw: String) -> Vec<u8> {
 
 /// Maps a list of passwords to keys and returns a vector of pairs
 pub fn map_to_keys(passwords: Vec<&String>) -> Vec<PassKey> {
-    return passwords.par_iter().map(|pw| {
-        let pw_str = (*pw).clone();
-        (pw_str.clone(), create_key(pw_str))
-    }).collect();
+    return passwords
+        .par_iter()
+        .map(|pw| {
+            let pw_str = (*pw).clone();
+            (pw_str.clone(), create_key(pw_str))
+        })
+        .collect();
 }
 
 /// Creates a sha256 hashsum from the input data

src/main.rs

@@ -1,13 +1,16 @@
 pub mod lib;
-use structopt::StructOpt;
-use std::fs::File;
-use std::io::{Read, Write};
-use crate::lib::crypt::{encrypt_data, decrypt_data, decrypt_with_dictionary, decrypt_brute_brute_force};
-use rpassword;
-use rpassword::{read_password_from_tty};
+
+use crate::lib::crypt::{
+    decrypt_brute_brute_force, decrypt_data, decrypt_with_dictionary, encrypt_data,
+};
 use crate::lib::hash::{create_key, map_to_keys, sha_checksum, PassKey};
-use rayon::prelude::*;
 use itertools::Itertools;
+use rayon::prelude::*;
+use rpassword;
+use rpassword::read_password_from_tty;
+use std::fs::File;
+use std::io::{Read, Write};
+use structopt::StructOpt;
 
 #[derive(StructOpt, Clone)]
 #[structopt(name = "destools", version = "1.0", author = "Julius R.")]
@@ -18,7 +21,6 @@ struct Opts {
 
 #[derive(StructOpt, Clone)]
 enum SubCommand {
-
     /// Encrypt a file with des
     #[structopt(name = "encrypt")]
     Encrypt(Encrypt),
@@ -29,7 +31,7 @@ enum SubCommand {
 
     /// Create a dictionary rainbow-table from a txt file
     #[structopt(name = "create-dictionary")]
-    CreateDictionary(CreateDictionary)
+    CreateDictionary(CreateDictionary),
 }
 
 #[derive(StructOpt, Clone)]
@@ -65,7 +67,7 @@ struct Decrypt {
     /// The file needs to be in a csv format with calculated password hashes.
     /// The hashes can be calculated with the create-dictionary subcommand from a txt file.
     #[structopt(short = "d", long = "dictionary")]
-    dictionary: Option<String>
+    dictionary: Option<String>,
 }
 
 #[derive(StructOpt, Clone)]
@@ -122,13 +124,16 @@ fn decrypt(_opts: &Opts, args: &Decrypt) {
             let dictionary = read_file(dict);
             let lines = dictionary.lines().collect::<Vec<&str>>();
 
-            let pw_table: Vec<PassKey> = lines.par_iter().map(|line| {
-                let parts: Vec<&str> = line.split(",").collect::<Vec<&str>>();
-                let pw = parts[0].parse().unwrap();
-                let key_str: String = parts[1].parse().unwrap();
-                let key = base64::decode(&key_str).unwrap();
-                (pw, key)
-            }).collect();
+            let pw_table: Vec<PassKey> = lines
+                .par_iter()
+                .map(|line| {
+                    let parts: Vec<&str> = line.split(",").collect::<Vec<&str>>();
+                    let pw = parts[0].parse().unwrap();
+                    let key_str: String = parts[1].parse().unwrap();
+                    let key = base64::decode(&key_str).unwrap();
+                    (pw, key)
+                })
+                .collect();
 
             println!("Starting multithreaded decryption...");
             if let Some(dec_data) = decrypt_with_dictionary(&data, pw_table, &data_checksum) {
@@ -156,14 +161,15 @@ fn decrypt(_opts: &Opts, args: &Decrypt) {
 
 /// Creates a dictionary from an input file and writes it to the output file
 fn create_dictionary(_opts: &Opts, args: &CreateDictionary) {
-    let input  = (*args.input).parse().unwrap();
+    let input = (*args.input).parse().unwrap();
     let contents = read_file(input);
     let lines = contents.lines().collect::<Vec<&str>>();
     println!("Parsing {} passwords...", lines.len());
 
-    let pws: Vec<String> = lines.par_iter().map(| s | -> String {
-        s.parse().unwrap()
-    }).collect();
+    let pws: Vec<String> = lines
+        .par_iter()
+        .map(|s| -> String { s.parse().unwrap() })
+        .collect();
     println!("Removing duplicates...");
     let passwords = pws.iter().unique().collect_vec();
     println!("Mapping passwords to keys...");
@@ -190,7 +196,7 @@ fn read_file_binary(filename: String) -> Vec<u8> {
 /// Reads a file to the end and returns the contents as a string
 fn read_file(filename: String) -> String {
     let mut fin = File::open(filename).unwrap();
-    let mut contents= String::new();
+    let mut contents = String::new();
     fin.read_to_string(&mut contents).unwrap();
     return contents;
 }
@@ -199,4 +205,4 @@ fn read_file(filename: String) -> String {
 fn write_file(filename: String, data: &[u8]) {
     let mut fout = File::create(filename).unwrap();
     fout.write(data).unwrap();
-}
+}