Module encryption 

DES Encryption support for ZUS RPC protocol

This module provides DES-ECB encryption/decryption compatible with the C++ and Java ZUS implementations.

Encryption Details

• Algorithm: DES (Data Encryption Standard)
• Mode: ECB (Electronic Codebook)
• Padding: Zero-padding to 8-byte blocks
• Key size: 8 bytes (64 bits, with 56 effective bits)

Cross-Language Compatibility

This implementation is compatible with:

• C++: zus::DesEncrypt class in des.cpp
• Java: CryptUtil.desEncrypt() / CryptUtil.desDecrypt() in CryptUtil.java

Example

use zus_common::encryption::{DesEncryptor, encrypt_des, decrypt_des};

// Using the simple functions
let key = b"12345678";
let plaintext = b"Hello, World!";
let encrypted = encrypt_des(plaintext, key).unwrap();
let decrypted = decrypt_des(&encrypted, key).unwrap();
assert_eq!(&decrypted[..plaintext.len()], plaintext);

// Using the DesEncryptor for multiple operations
let encryptor = DesEncryptor::new(key);
let encrypted = encryptor.encrypt(plaintext).unwrap();
let decrypted = encryptor.decrypt(&encrypted).unwrap();

Structs

DesEncryptor

DES Encryptor for encrypting and decrypting data using DES-ECB mode.

Constants

DES_BLOCK_SIZE

DES block size in bytes

DES_KEY_SIZE

DES key size in bytes

Functions

decrypt_des

Decrypt data using DES-ECB mode.

encrypt_des

Encrypt data using DES-ECB mode with zero-padding.