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88 lines
2.8 KiB
Markdown
88 lines
2.8 KiB
Markdown
2 years ago
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---
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icon: edit
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date: 2022-10-25
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category:
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- Rust
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headerDepth: 5
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---
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# Rust 文件加解密
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```Cargo.toml```
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```toml
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[dependencies]
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aes = "0.7.5"
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block-modes = "0.8.1"
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hex-literal = "0.2.1"
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rand = "0.8.4"
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bytebuffer = "0.2.1"
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base64 = "0.13.0"
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```
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main.rs
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```rust
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use aes::Aes256;
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use block_modes::{BlockMode, Cbc};
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use block_modes::block_padding::Pkcs7;
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use rand::seq::SliceRandom;
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use std::fs;
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type AesCbc = Cbc<Aes256, Pkcs7>;
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use std::fs::File;
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use std::io::prelude::*;
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const BASE_STR: &str = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
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const KEY:&str = "01234567012345670123456701234567";
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fn gen_ascii_chars(size: usize) -> String {
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let mut rng = &mut rand::thread_rng();
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String::from_utf8(
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BASE_STR.as_bytes()
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.choose_multiple(&mut rng, size)
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.cloned()
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.collect()
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).unwrap()
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}
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fn encrypt(key: &str, data: &[u8]) -> String {
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let iv_str = gen_ascii_chars(16);
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let iv = iv_str.as_bytes();
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let cipher = AesCbc::new_from_slices(key.as_bytes(), iv).unwrap();
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let ciphertext = cipher.encrypt_vec(data);
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let mut buffer = bytebuffer::ByteBuffer::from_bytes(iv);
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buffer.write_bytes(&ciphertext);
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base64::encode(buffer.to_bytes())
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}
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fn decrypt(key: &str, data: &str) -> String {
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let bytes = base64::decode(data).unwrap();
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let cipher = AesCbc::new_from_slices(key.as_bytes(), &bytes[0..16]).unwrap();
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String::from_utf8_lossy(cipher.decrypt_vec(&bytes[16..]).unwrap().as_slice()).to_string()
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}
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fn decryptToByte(key: &str, data: &str) -> Vec<u8> {
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let bytes = base64::decode(data).unwrap();
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let cipher = AesCbc::new_from_slices(key.as_bytes(), &bytes[0..16]).unwrap();
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cipher.decrypt_vec(&bytes[16..]).unwrap()
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}
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fn encodefile(path:&str,encodePath:&str){
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//let plaintext = "hello worldsssss";
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let plaintext = fs::read(path).unwrap();
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let classstr = String::from_utf8_lossy(plaintext.as_slice()).to_string();
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let enc = encrypt(KEY, plaintext.as_slice());
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// println!("{}", enc);
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let dec = decrypt(KEY, &enc);
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assert_eq!(classstr, dec);
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// println!("{}", dec);
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let mut file = File::create(encodePath).unwrap();
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file.write(enc.as_bytes()).unwrap();
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}
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fn decodefile(path:&str,decodePath:&str){
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let plaintext = fs::read(path).unwrap();
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let classstr = String::from_utf8_lossy(plaintext.as_slice()).to_string();
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// let dec = decrypt(key, &classstr);
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let decodeBytes = decryptToByte(KEY,&classstr);
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let mut file = File::create(decodePath).unwrap();
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file.write(decodeBytes.as_slice()).unwrap();
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}
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fn main() {
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encodefile("C:\\Users\\61778\\Desktop\\HelloWorld.class","C:\\Users\\61778\\Desktop\\test1\\HelloWorldDE.class");
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decodefile("C:\\Users\\61778\\Desktop\\test1\\HelloWorldDE.class","C:\\Users\\61778\\Desktop\\test1\\HelloWorld.class");
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}
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```
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