ndes_basic_quick_examples/
ndes_basic_quick_examples.rs

1// Copyright 2025 PARK Youngho.
2//
3// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
4// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
5// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your option.
6// This file may not be copied, modified, or distributed
7// except according to those terms.
8
9#![allow(missing_docs)]
10#![allow(unused_must_use)]
11#![allow(dead_code)]
12
13
14pub fn main()
15{
16    ndes_quick_start_main();
17    ndes_basic_operation_main();
18}
19
20fn ndes_quick_start_main()
21{
22    ndes_quick_start_instantiation_with_keys();
23}
24
25fn ndes_quick_start_instantiation_with_keys()
26{
27    println!("des_quick_start_instantiation_with_keys()");
28    // use cryptocol::symmetric::{ BigCryptor64, SmallCryptor };
29    println!("-------------------------------");
30}
31
32
33fn ndes_basic_operation_main()
34{
35    ndes_new_with_keys();
36    ndes_new_with_keys_u64();
37}
38
39fn ndes_new_with_keys()
40{
41    println!("ndes_new_with_keys()");
42    use cryptocol::symmetric::{ BigCryptor64, DES, SmallCryptor };
43
44    let keys: [Box<dyn SmallCryptor<u64, 8>>; 3]
45            = [ Box::new(DES::encryptor_with_key_u64(0x1234567890ABCDEF_u64)),
46                Box::new(DES::decryptor_with_key_u64(0x_FEDCBA0987654321_u64)),
47                Box::new(DES::encryptor_with_key_u64(0x1234567890ABCDEF_u64)) ];
48    let mut tdes = BigCryptor64::new_with_small_cryptor_array(keys);
49    let plaintext = 0x1234567890ABCDEF_u64;
50    let ciphertext = tdes.encrypt_u64(plaintext);
51
52    println!("Plaintext:\t\t{:#016X}", plaintext);
53    println!("Ciphertext:\t\t{:#016X}", ciphertext);
54    assert_eq!(ciphertext, 0x272A2AC7B4E66748_u64);
55
56    let cipher_cipher_text = tdes.decrypt_u64(ciphertext);
57    println!("Cipher-ciphertext:\t{:#016X}", cipher_cipher_text);
58    assert_eq!(cipher_cipher_text, 0x1234567890ABCDEF_u64);
59    assert_eq!(cipher_cipher_text, plaintext);  // So, you can't use the default key!!!
60    println!("-------------------------------");
61}
62
63fn ndes_new_with_keys_u64()
64{
65    println!("ndes_new_with_keys_u64()");
66    use std::fmt::Write as _;
67    use cryptocol::symmetric::{ BigCryptor64, DES, ECB_PKCS7 };
68
69    let mut tdes = BigCryptor64::new_with_small_cryptor_array(
70        [Box::new(DES::encryptor_with_key_u64(0x_1234567890ABCDEF_u64)),
71                Box::new(DES::decryptor_with_key_u64(0x_FEDCBA0987654321_u64)),
72                Box::new(DES::encryptor_with_key_u64(0x_1234567890ABCDEF_u64))]
73    );
74
75    let message = "I am OK.";
76    println!("M =\t{}", message);
77    let mut cipher = [0_u8; 16];
78    tdes.encrypt_str_into_array(&message, &mut cipher);
79    print!("C =\t");
80    for c in cipher.clone()
81        { print!("{:02X} ", c); }
82    println!();
83    let mut txt = String::new();
84    for c in cipher.clone()
85        { write!(txt, "{:02X} ", c); }
86    assert_eq!(txt, "88 89 99 44 30 72 CA 2F 22 4F 7C E0 55 FA 28 C3 ");
87    println!();
88
89    let mut recovered = vec![0; 16];
90    let len = tdes.decrypt_array_into_vec(&cipher, &mut recovered);
91    print!("Ba =\t");
92    for b in recovered.clone()
93        { print!("{:02X} ", b); }
94    println!();
95    let mut txt = String::new();
96    for c in recovered.clone()
97        { write!(txt, "{:02X} ", c); }
98    assert_eq!(txt, "49 20 61 6D 20 4F 4B 2E ");
99
100    let mut converted = String::new();
101    unsafe { converted.as_mut_vec() }.append(&mut recovered);
102    converted.truncate(len as usize);
103    
104    println!("Bb =\t{}", converted);
105    assert_eq!(converted, "I am OK.");
106    assert_eq!(converted, message);
107    println!("-------------------------------");
108}
ndes_basic_quick_examples/ndes_basic_quick_examples.rs

ndes_basic_quick_examples/
ndes_basic_quick_examples.rs
