des-0.8.1/.cargo_vcs_info.json 0000644 00000000141 00000000001 0011611 0 ustar {
"git": {
"sha1": "7de364ede310f1ea7080c99ddf1138aeb47f9a69"
},
"path_in_vcs": "des"
} des-0.8.1/CHANGELOG.md 0000644 0000000 0000000 00000002630 00726746425 0012247 0 ustar 0000000 0000000 # Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## 0.8.1 (2022-02-17)
### Fixed
- Minimal versions build ([#303])
[#303]: https://github.com/RustCrypto/block-ciphers/pull/303
## 0.8.0 (2022-02-10)
### Changed
- Bump `cipher` dependency to v0.4 ([#284])
[#284]: https://github.com/RustCrypto/block-ciphers/pull/284
## 0.7.0 (2021-04-29)
### Changed
- Bump `cipher` dependency to v0.3 ([#235])
[#235]: https://github.com/RustCrypto/block-ciphers/pull/235
## 0.6.0 (2020-10-16)
### Changed
- Replace `block-cipher`/`stream-cipher` with `cipher` crate ([#167])
[#167]: https://github.com/RustCrypto/block-ciphers/pull/167
## 0.5.0 (2020-08-07)
### Changed
- Bump `block-cipher` dependency to v0.8 ([#138])
- Bump `opaque-debug` dependency to v0.3 ([#140])
[#138]: https://github.com/RustCrypto/block-ciphers/pull/138
[#140]: https://github.com/RustCrypto/block-ciphers/pull/140
## 0.4.0 (2020-06-08)
### Changed
- Bump `block-cipher` dependency to v0.7 ([#90])
- Upgrade to Rust 2018 edition ([#90])
[#90]: https://github.com/RustCrypto/block-ciphers/pull/90
## 0.3.0 (2018-12-23)
## 0.2.0 (2018-11-14)
## 0.1.0 (2017-11-26)
## 0.0.4 (2017-01-18)
## 0.0.3 (2016-08-27)
## 0.0.2 (2016-08-10)
## 0.0.1 (2016-04-24)
des-0.8.1/Cargo.toml 0000644 00000002147 00000000001 0007617 0 ustar # THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
#
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies.
#
# If you are reading this file be aware that the original Cargo.toml
# will likely look very different (and much more reasonable).
# See Cargo.toml.orig for the original contents.
[package]
edition = "2021"
rust-version = "1.56"
name = "des"
version = "0.8.1"
authors = ["RustCrypto Developers"]
description = "DES and Triple DES (3DES, TDES) block ciphers implementation"
documentation = "https://docs.rs/des"
readme = "README.md"
keywords = ["crypto", "des", "tdes", "block-cipher"]
categories = ["cryptography", "no-std"]
license = "MIT OR Apache-2.0"
repository = "https://github.com/RustCrypto/block-ciphers"
[package.metadata.docs.rs]
all-features = true
rustdoc-args = ["--cfg", "docsrs"]
[dependencies.cipher]
version = "0.4.2"
[dev-dependencies.cipher]
version = "0.4.2"
features = ["dev"]
[features]
zeroize = ["cipher/zeroize"]
des-0.8.1/Cargo.toml.orig 0000644 0000000 0000000 00000001316 00726746425 0013325 0 ustar 0000000 0000000 [package]
name = "des"
version = "0.8.1" # Also update html_root_url in lib.rs when bumping this
description = "DES and Triple DES (3DES, TDES) block ciphers implementation"
authors = ["RustCrypto Developers"]
license = "MIT OR Apache-2.0"
edition = "2021"
rust-version = "1.56"
readme = "README.md"
documentation = "https://docs.rs/des"
repository = "https://github.com/RustCrypto/block-ciphers"
keywords = ["crypto", "des", "tdes", "block-cipher"]
categories = ["cryptography", "no-std"]
[dependencies]
cipher = "0.4.2"
[dev-dependencies]
cipher = { version = "0.4.2", features = ["dev"] }
[features]
zeroize = ["cipher/zeroize"]
[package.metadata.docs.rs]
all-features = true
rustdoc-args = ["--cfg", "docsrs"]
des-0.8.1/LICENSE-APACHE 0000644 0000000 0000000 00000025123 00726746425 0012364 0 ustar 0000000 0000000 Apache License
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des-0.8.1/README.md 0000644 0000000 0000000 00000005062 00726746425 0011717 0 ustar 0000000 0000000 # RustCrypto: Data Encryption Standard (DES) and 3DES
[![crate][crate-image]][crate-link]
[![Docs][docs-image]][docs-link]
![Apache2/MIT licensed][license-image]
![Rust Version][rustc-image]
[![Project Chat][chat-image]][chat-link]
[![Build Status][build-image]][build-link]
[![HAZMAT][hazmat-image]][hazmat-link]
Pure Rust implementation of the [DES cipher][1], including triple DES (3DES).
[Documentation][docs-link]
## ⚠️ Security Warning: [Hazmat!][hazmat-link]
This crate does not ensure ciphertexts are authentic (i.e. by using a MAC to
verify ciphertext integrity), which can lead to serious vulnerabilities
if used incorrectly!
No security audits of this crate have ever been performed, and it has not been
thoroughly assessed to ensure its operation is constant-time on common CPU
architectures.
USE AT YOUR OWN RISK!
## Minimum Supported Rust Version
Rust **1.56** or higher.
Minimum supported Rust version can be changed in the future, but it will be
done with a minor version bump.
## SemVer Policy
- All on-by-default features of this library are covered by SemVer
- MSRV is considered exempt from SemVer as noted above
## License
Licensed under either of:
* [Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0)
* [MIT license](http://opensource.org/licenses/MIT)
at your option.
### Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
dual licensed as above, without any additional terms or conditions.
[//]: # (badges)
[crate-image]: https://img.shields.io/crates/v/des.svg
[crate-link]: https://crates.io/crates/des
[docs-image]: https://docs.rs/des/badge.svg
[docs-link]: https://docs.rs/des/
[license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
[rustc-image]: https://img.shields.io/badge/rustc-1.56+-blue.svg
[hazmat-image]: https://img.shields.io/badge/crypto-hazmat%E2%9A%A0-red.svg
[hazmat-link]: https://github.com/RustCrypto/meta/blob/master/HAZMAT.md
[chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
[chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260039-block-ciphers
[build-image]: https://github.com/RustCrypto/block-ciphers/workflows/des/badge.svg?branch=master&event=push
[build-link]: https://github.com/RustCrypto/block-ciphers/actions?query=workflow%3Ades
[//]: # (general links)
[1]: https://en.wikipedia.org/wiki/Data_Encryption_Standard
des-0.8.1/benches/mod.rs 0000644 0000000 0000000 00000000742 00726746425 0013174 0 ustar 0000000 0000000 #![feature(test)]
extern crate test;
use cipher::{block_decryptor_bench, block_encryptor_bench};
use des::{Des, TdesEde3};
block_encryptor_bench!(Key: Des, des_encrypt_block, des_encrypt_blocks);
block_decryptor_bench!(Key: Des, des_decrypt_block, des_decrypt_blocks);
block_encryptor_bench!(
Key: TdesEde3,
tdes_ede3_encrypt_block,
tdes_ede3_encrypt_blocks,
);
block_decryptor_bench!(
Key: TdesEde3,
tdes_ede3_decrypt_block,
tdes_ede3_decrypt_blocks,
);
des-0.8.1/src/consts.rs 0000644 0000000 0000000 00000005647 00726746425 0013117 0 ustar 0000000 0000000 pub const SHIFTS: [u8; 16] = [1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1];
// These boxes are not the same ones that appear in the literature. Normally,
// the first and the last bits of the six input bits are used to choose the row
// and the middle four bits are used to choose the column. These sboxes are
// rearranged so that the bottom four bits choose the column and the top two
// bits choose the row. In other words, we can directly index the sbox array
// with the 6 input bits to get the correct value.
#[rustfmt::skip]
pub const SBOXES: [[u8; 64]; 8] = [
[
14, 0, 4, 15, 13, 7, 1, 4, 2, 14, 15, 2, 11, 13, 8, 1,
3, 10, 10, 6, 6, 12, 12, 11, 5, 9, 9, 5, 0, 3, 7, 8,
4, 15, 1, 12, 14, 8, 8, 2, 13, 4, 6, 9, 2, 1, 11, 7,
15, 5, 12, 11, 9, 3, 7, 14, 3, 10, 10, 0, 5, 6, 0, 13,
],
[
15, 3, 1, 13, 8, 4, 14, 7, 6, 15, 11, 2, 3, 8, 4, 14,
9, 12, 7, 0, 2, 1, 13, 10, 12, 6, 0, 9, 5, 11, 10, 5,
0, 13, 14, 8, 7, 10, 11, 1, 10, 3, 4, 15, 13, 4, 1, 2,
5, 11, 8, 6, 12, 7, 6, 12, 9, 0, 3, 5, 2, 14, 15, 9,
],
[
10, 13, 0, 7, 9, 0, 14, 9, 6, 3, 3, 4, 15, 6, 5, 10,
1, 2, 13, 8, 12, 5, 7, 14, 11, 12, 4, 11, 2, 15, 8, 1,
13, 1, 6, 10, 4, 13, 9, 0, 8, 6, 15, 9, 3, 8, 0, 7,
11, 4, 1, 15, 2, 14, 12, 3, 5, 11, 10, 5, 14, 2, 7, 12,
],
[
7, 13, 13, 8, 14, 11, 3, 5, 0, 6, 6, 15, 9, 0, 10, 3,
1, 4, 2, 7, 8, 2, 5, 12, 11, 1, 12, 10, 4, 14, 15, 9,
10, 3, 6, 15, 9, 0, 0, 6, 12, 10, 11, 1, 7, 13, 13, 8,
15, 9, 1, 4, 3, 5, 14, 11, 5, 12, 2, 7, 8, 2, 4, 14,
],
[
2, 14, 12, 11, 4, 2, 1, 12, 7, 4, 10, 7, 11, 13, 6, 1,
8, 5, 5, 0, 3, 15, 15, 10, 13, 3, 0, 9, 14, 8, 9, 6,
4, 11, 2, 8, 1, 12, 11, 7, 10, 1, 13, 14, 7, 2, 8, 13,
15, 6, 9, 15, 12, 0, 5, 9, 6, 10, 3, 4, 0, 5, 14, 3,
],
[
12, 10, 1, 15, 10, 4, 15, 2, 9, 7, 2, 12, 6, 9, 8, 5,
0, 6, 13, 1, 3, 13, 4, 14, 14, 0, 7, 11, 5, 3, 11, 8,
9, 4, 14, 3, 15, 2, 5, 12, 2, 9, 8, 5, 12, 15, 3, 10,
7, 11, 0, 14, 4, 1, 10, 7, 1, 6, 13, 0, 11, 8, 6, 13,
],
[
4, 13, 11, 0, 2, 11, 14, 7, 15, 4, 0, 9, 8, 1, 13, 10,
3, 14, 12, 3, 9, 5, 7, 12, 5, 2, 10, 15, 6, 8, 1, 6,
1, 6, 4, 11, 11, 13, 13, 8, 12, 1, 3, 4, 7, 10, 14, 7,
10, 9, 15, 5, 6, 0, 8, 15, 0, 14, 5, 2, 9, 3, 2, 12,
],
[
13, 1, 2, 15, 8, 13, 4, 8, 6, 10, 15, 3, 11, 7, 1, 4,
10, 12, 9, 5, 3, 6, 14, 11, 5, 0, 0, 14, 12, 9, 7, 2,
7, 2, 11, 1, 4, 14, 1, 7, 9, 4, 12, 10, 14, 8, 2, 13,
0, 15, 6, 12, 10, 9, 13, 0, 15, 3, 3, 5, 5, 6, 8, 11,
],
];
des-0.8.1/src/des.rs 0000644 0000000 0000000 00000016445 00726746425 0012357 0 ustar 0000000 0000000 //! Data Encryption Standard (DES) block cipher.
#![allow(clippy::unreadable_literal)]
use cipher::{consts::U8, AlgorithmName, BlockCipher, Key, KeyInit, KeySizeUser};
use core::fmt;
#[cfg(feature = "zeroize")]
use cipher::zeroize::{Zeroize, ZeroizeOnDrop};
use crate::consts::{SBOXES, SHIFTS};
/// Data Encryption Standard (DES) block cipher.
#[derive(Clone)]
pub struct Des {
pub(crate) keys: [u64; 16],
}
/// Swap bits in `a` using a delta swap
fn delta_swap(a: u64, delta: u64, mask: u64) -> u64 {
let b = (a ^ (a >> delta)) & mask;
a ^ b ^ (b << delta)
}
/// Swap bits using the PC-1 table
fn pc1(mut key: u64) -> u64 {
key = delta_swap(key, 2, 0x3333000033330000);
key = delta_swap(key, 4, 0x0f0f0f0f00000000);
key = delta_swap(key, 8, 0x009a000a00a200a8);
key = delta_swap(key, 16, 0x00006c6c0000cccc);
key = delta_swap(key, 1, 0x1045500500550550);
key = delta_swap(key, 32, 0x00000000f0f0f5fa);
key = delta_swap(key, 8, 0x00550055006a00aa);
key = delta_swap(key, 2, 0x0000333330000300);
key & 0xFFFFFFFFFFFFFF00
}
/// Swap bits using the PC-2 table
fn pc2(key: u64) -> u64 {
let key = key.rotate_left(61);
let b1 = (key & 0x0021000002000000) >> 7;
let b2 = (key & 0x0008020010080000) << 1;
let b3 = key & 0x0002200000000000;
let b4 = (key & 0x0000000000100020) << 19;
let b5 = (key.rotate_left(54) & 0x0005312400000011).wrapping_mul(0x0000000094200201)
& 0xea40100880000000;
let b6 = (key.rotate_left(7) & 0x0022110000012001).wrapping_mul(0x0001000000610006)
& 0x1185004400000000;
let b7 = (key.rotate_left(6) & 0x0000520040200002).wrapping_mul(0x00000080000000c1)
& 0x0028811000200000;
let b8 = (key & 0x01000004c0011100).wrapping_mul(0x0000000000004284) & 0x0400082244400000;
let b9 = (key.rotate_left(60) & 0x0000000000820280).wrapping_mul(0x0000000000089001)
& 0x0000000110880000;
let b10 = (key.rotate_left(49) & 0x0000000000024084).wrapping_mul(0x0000000002040005)
& 0x000000000a030000;
b1 | b2 | b3 | b4 | b5 | b6 | b7 | b8 | b9 | b10
}
/// Swap bits using the reverse FP table
fn fp(mut message: u64) -> u64 {
message = delta_swap(message, 24, 0x000000FF000000FF);
message = delta_swap(message, 24, 0x00000000FF00FF00);
message = delta_swap(message, 36, 0x000000000F0F0F0F);
message = delta_swap(message, 18, 0x0000333300003333);
delta_swap(message, 9, 0x0055005500550055)
}
/// Swap bits using the IP table
fn ip(mut message: u64) -> u64 {
message = delta_swap(message, 9, 0x0055005500550055);
message = delta_swap(message, 18, 0x0000333300003333);
message = delta_swap(message, 36, 0x000000000F0F0F0F);
message = delta_swap(message, 24, 0x00000000FF00FF00);
delta_swap(message, 24, 0x000000FF000000FF)
}
/// Swap bits using the E table
fn e(block: u64) -> u64 {
const BLOCK_LEN: usize = 32;
const RESULT_LEN: usize = 48;
let b1 = (block << (BLOCK_LEN - 1)) & 0x8000000000000000;
let b2 = (block >> 1) & 0x7C00000000000000;
let b3 = (block >> 3) & 0x03F0000000000000;
let b4 = (block >> 5) & 0x000FC00000000000;
let b5 = (block >> 7) & 0x00003F0000000000;
let b6 = (block >> 9) & 0x000000FC00000000;
let b7 = (block >> 11) & 0x00000003F0000000;
let b8 = (block >> 13) & 0x000000000FC00000;
let b9 = (block >> 15) & 0x00000000003E0000;
let b10 = (block >> (RESULT_LEN - 1)) & 0x0000000000010000;
b1 | b2 | b3 | b4 | b5 | b6 | b7 | b8 | b9 | b10
}
/// Swap bits using the P table
fn p(block: u64) -> u64 {
let block = block.rotate_left(44);
let b1 = (block & 0x0000000000200000) << 32;
let b2 = (block & 0x0000000000480000) << 13;
let b3 = (block & 0x0000088000000000) << 12;
let b4 = (block & 0x0000002020120000) << 25;
let b5 = (block & 0x0000000442000000) << 14;
let b6 = (block & 0x0000000001800000) << 37;
let b7 = (block & 0x0000000004000000) << 24;
let b8 = (block & 0x0000020280015000).wrapping_mul(0x0000020080800083) & 0x02000a6400000000;
let b9 = (block.rotate_left(29) & 0x01001400000000aa).wrapping_mul(0x0000210210008081)
& 0x0902c01200000000;
let b10 = (block & 0x0000000910040000).wrapping_mul(0x0000000c04000020) & 0x8410010000000000;
b1 | b2 | b3 | b4 | b5 | b6 | b7 | b8 | b9 | b10
}
/// Generate the 16 subkeys
pub(crate) fn gen_keys(key: u64) -> [u64; 16] {
let mut keys: [u64; 16] = [0; 16];
let key = pc1(key);
// The most significant bit is bit zero, and there are only 56 bits in
// the key after applying PC1, so we need to remove the eight least
// significant bits from the key.
let key = key >> 8;
let mut c = key >> 28;
let mut d = key & 0x0FFFFFFF;
for i in 0..16 {
c = rotate(c, SHIFTS[i]);
d = rotate(d, SHIFTS[i]);
// We need the `<< 8` because the most significant bit is bit zero,
// so we need to shift our 56 bit value 8 bits to the left.
keys[i] = pc2(((c << 28) | d) << 8);
}
keys
}
/// Performs a left rotate on a 28 bit number
fn rotate(mut val: u64, shift: u8) -> u64 {
let top_bits = val >> (28 - shift);
val <<= shift;
(val | top_bits) & 0x0FFFFFFF
}
fn round(input: u64, key: u64) -> u64 {
let l = input & (0xFFFF_FFFF << 32);
let r = input << 32;
r | ((f(r, key) ^ l) >> 32)
}
fn f(input: u64, key: u64) -> u64 {
let mut val = e(input as u64);
val ^= key;
val = apply_sboxes(val);
p(val)
}
/// Applies all eight sboxes to the input
fn apply_sboxes(input: u64) -> u64 {
let mut output: u64 = 0;
for (i, sbox) in SBOXES.iter().enumerate() {
let val = (input >> (58 - (i * 6))) & 0x3F;
output |= u64::from(sbox[val as usize]) << (60 - (i * 4));
}
output
}
impl Des {
pub(crate) fn encrypt(&self, mut data: u64) -> u64 {
data = ip(data);
for key in &self.keys {
data = round(data, *key);
}
fp((data << 32) | (data >> 32))
}
pub(crate) fn decrypt(&self, mut data: u64) -> u64 {
data = ip(data);
for key in self.keys.iter().rev() {
data = round(data, *key);
}
fp((data << 32) | (data >> 32))
}
}
impl BlockCipher for Des {}
impl KeySizeUser for Des {
type KeySize = U8;
}
impl KeyInit for Des {
#[inline]
fn new(key: &Key) -> Self {
let keys = gen_keys(u64::from_be_bytes(key.clone().into()));
Self { keys }
}
}
impl fmt::Debug for Des {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.write_str("Des { ... }")
}
}
impl AlgorithmName for Des {
fn write_alg_name(f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.write_str("Des")
}
}
#[cfg(feature = "zeroize")]
#[cfg_attr(docsrs, doc(cfg(feature = "zeroize")))]
impl Drop for Des {
fn drop(&mut self) {
self.keys.zeroize();
}
}
#[cfg(feature = "zeroize")]
#[cfg_attr(docsrs, doc(cfg(feature = "zeroize")))]
impl ZeroizeOnDrop for Des {}
cipher::impl_simple_block_encdec!(
Des, U8, cipher, block,
encrypt: {
let mut data = u64::from_be_bytes(block.clone_in().into());
data = cipher.encrypt(data);
block.get_out().copy_from_slice(&data.to_be_bytes());
}
decrypt: {
let mut data = u64::from_be_bytes(block.clone_in().into());
data = cipher.decrypt(data);
block.get_out().copy_from_slice(&data.to_be_bytes());
}
);
des-0.8.1/src/lib.rs 0000644 0000000 0000000 00000002135 00726746425 0012341 0 ustar 0000000 0000000 //! Pure Rust implementation of the [Data Encryption Standard][DES] (DES),
//! including [Triple DES] (TDES, 3DES) block ciphers.
//!
//! # ⚠️ Security Warning: Hazmat!
//!
//! This crate implements only the low-level block cipher function, and is intended
//! for use for implementing higher-level constructions *only*. It is NOT
//! intended for direct use in applications.
//!
//! USE AT YOUR OWN RISK!
//!
//! [DES]: https://en.wikipedia.org/wiki/Data_Encryption_Standard
//! [Triple DES]: https://en.wikipedia.org/wiki/Triple_DES
#![no_std]
#![doc(
html_logo_url = "https://raw.githubusercontent.com/RustCrypto/media/26acc39f/logo.svg",
html_favicon_url = "https://raw.githubusercontent.com/RustCrypto/media/26acc39f/logo.svg",
html_root_url = "https://docs.rs/des/0.8.1"
)]
#![deny(unsafe_code)]
#![cfg_attr(docsrs, feature(doc_cfg))]
#![warn(missing_docs, rust_2018_idioms)]
#![allow(clippy::clone_on_copy)] // TODO: remove on migration to const generics
pub use cipher;
mod consts;
mod des;
mod tdes;
pub use crate::des::Des;
pub use crate::tdes::{TdesEde2, TdesEde3, TdesEee2, TdesEee3};
des-0.8.1/src/tdes.rs 0000644 0000000 0000000 00000015103 00726746425 0012531 0 ustar 0000000 0000000 //! Triple DES (3DES) block ciphers.
use crate::des::{gen_keys, Des};
use cipher::{
consts::{U16, U24, U8},
AlgorithmName, BlockCipher, Key, KeyInit, KeySizeUser,
};
use core::fmt;
#[cfg(feature = "zeroize")]
use cipher::zeroize::ZeroizeOnDrop;
/// Triple DES (3DES) block cipher.
#[derive(Clone)]
pub struct TdesEde3 {
d1: Des,
d2: Des,
d3: Des,
}
impl BlockCipher for TdesEde3 {}
impl KeySizeUser for TdesEde3 {
type KeySize = U24;
}
impl KeyInit for TdesEde3 {
#[inline]
fn new(key: &Key) -> Self {
let k1 = u64::from_be_bytes(key[0..8].try_into().unwrap());
let k2 = u64::from_be_bytes(key[8..16].try_into().unwrap());
let k3 = u64::from_be_bytes(key[16..24].try_into().unwrap());
let d1 = Des { keys: gen_keys(k1) };
let d2 = Des { keys: gen_keys(k2) };
let d3 = Des { keys: gen_keys(k3) };
Self { d1, d2, d3 }
}
}
impl fmt::Debug for TdesEde3 {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.write_str("TdesEee3 { ... }")
}
}
impl AlgorithmName for TdesEde3 {
fn write_alg_name(f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.write_str("TdesEde3")
}
}
#[cfg(feature = "zeroize")]
#[cfg_attr(docsrs, doc(cfg(feature = "zeroize")))]
impl ZeroizeOnDrop for TdesEde3 {}
cipher::impl_simple_block_encdec!(
TdesEde3, U8, cipher, block,
encrypt: {
let mut data = u64::from_be_bytes(block.clone_in().into());
data = cipher.d1.encrypt(data);
data = cipher.d2.decrypt(data);
data = cipher.d3.encrypt(data);
block.get_out().copy_from_slice(&data.to_be_bytes());
}
decrypt: {
let mut data = u64::from_be_bytes(block.clone_in().into());
data = cipher.d3.decrypt(data);
data = cipher.d2.encrypt(data);
data = cipher.d1.decrypt(data);
block.get_out().copy_from_slice(&data.to_be_bytes());
}
);
/// Triple DES (3DES) block cipher.
#[derive(Clone)]
pub struct TdesEee3 {
d1: Des,
d2: Des,
d3: Des,
}
impl BlockCipher for TdesEee3 {}
impl KeySizeUser for TdesEee3 {
type KeySize = U24;
}
impl KeyInit for TdesEee3 {
#[inline]
fn new(key: &Key) -> Self {
let k1 = u64::from_be_bytes(key[0..8].try_into().unwrap());
let k2 = u64::from_be_bytes(key[8..16].try_into().unwrap());
let k3 = u64::from_be_bytes(key[16..24].try_into().unwrap());
let d1 = Des { keys: gen_keys(k1) };
let d2 = Des { keys: gen_keys(k2) };
let d3 = Des { keys: gen_keys(k3) };
Self { d1, d2, d3 }
}
}
impl fmt::Debug for TdesEee3 {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.write_str("TdesEee3 { ... }")
}
}
impl AlgorithmName for TdesEee3 {
fn write_alg_name(f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.write_str("TdesEee3")
}
}
#[cfg(feature = "zeroize")]
#[cfg_attr(docsrs, doc(cfg(feature = "zeroize")))]
impl ZeroizeOnDrop for TdesEee3 {}
cipher::impl_simple_block_encdec!(
TdesEee3, U8, cipher, block,
encrypt: {
let mut data = u64::from_be_bytes(block.clone_in().into());
data = cipher.d1.encrypt(data);
data = cipher.d2.encrypt(data);
data = cipher.d3.encrypt(data);
block.get_out().copy_from_slice(&data.to_be_bytes());
}
decrypt: {
let mut data = u64::from_be_bytes(block.clone_in().into());
data = cipher.d3.decrypt(data);
data = cipher.d2.decrypt(data);
data = cipher.d1.decrypt(data);
block.get_out().copy_from_slice(&data.to_be_bytes());
}
);
/// Triple DES (3DES) block cipher.
#[derive(Clone)]
pub struct TdesEde2 {
d1: Des,
d2: Des,
}
impl BlockCipher for TdesEde2 {}
impl KeySizeUser for TdesEde2 {
type KeySize = U16;
}
impl KeyInit for TdesEde2 {
#[inline]
fn new(key: &Key) -> Self {
let k1 = u64::from_be_bytes(key[0..8].try_into().unwrap());
let k2 = u64::from_be_bytes(key[8..16].try_into().unwrap());
let d1 = Des { keys: gen_keys(k1) };
let d2 = Des { keys: gen_keys(k2) };
Self { d1, d2 }
}
}
impl fmt::Debug for TdesEde2 {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.write_str("TdesEde2 { ... }")
}
}
impl AlgorithmName for TdesEde2 {
fn write_alg_name(f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.write_str("TdesEde2")
}
}
#[cfg(feature = "zeroize")]
#[cfg_attr(docsrs, doc(cfg(feature = "zeroize")))]
impl ZeroizeOnDrop for TdesEde2 {}
cipher::impl_simple_block_encdec!(
TdesEde2, U8, cipher, block,
encrypt: {
let mut data = u64::from_be_bytes(block.clone_in().into());
data = cipher.d1.encrypt(data);
data = cipher.d2.decrypt(data);
data = cipher.d1.encrypt(data);
block.get_out().copy_from_slice(&data.to_be_bytes());
}
decrypt: {
let mut data = u64::from_be_bytes(block.clone_in().into());
data = cipher.d1.decrypt(data);
data = cipher.d2.encrypt(data);
data = cipher.d1.decrypt(data);
block.get_out().copy_from_slice(&data.to_be_bytes());
}
);
/// Triple DES (3DES) block cipher.
#[derive(Clone)]
pub struct TdesEee2 {
d1: Des,
d2: Des,
}
impl BlockCipher for TdesEee2 {}
impl KeySizeUser for TdesEee2 {
type KeySize = U16;
}
impl KeyInit for TdesEee2 {
#[inline]
fn new(key: &Key) -> Self {
let k1 = u64::from_be_bytes(key[0..8].try_into().unwrap());
let k2 = u64::from_be_bytes(key[8..16].try_into().unwrap());
let d1 = Des { keys: gen_keys(k1) };
let d2 = Des { keys: gen_keys(k2) };
Self { d1, d2 }
}
}
impl fmt::Debug for TdesEee2 {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.write_str("TdesEee2 { ... }")
}
}
impl AlgorithmName for TdesEee2 {
fn write_alg_name(f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.write_str("TdesEee2")
}
}
#[cfg(feature = "zeroize")]
#[cfg_attr(docsrs, doc(cfg(feature = "zeroize")))]
impl ZeroizeOnDrop for TdesEee2 {}
cipher::impl_simple_block_encdec!(
TdesEee2, U8, cipher, block,
encrypt: {
let mut data = u64::from_be_bytes(block.clone_in().into());
data = cipher.d1.encrypt(data);
data = cipher.d2.encrypt(data);
data = cipher.d1.encrypt(data);
block.get_out().copy_from_slice(&data.to_be_bytes());
}
decrypt: {
let mut data = u64::from_be_bytes(block.clone_in().into());
data = cipher.d1.decrypt(data);
data = cipher.d2.decrypt(data);
data = cipher.d1.decrypt(data);
block.get_out().copy_from_slice(&data.to_be_bytes());
}
);
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