DES decryption tool description

Introduction

This tool provides standard DES(Data Encryption Standard) Algorithm online implementation, support:- ** 64-bit key encryption/decryption **- ** ECB electronic codebook mode **- ** real-time bidirectional encryption and decryption conversion **

Core Functions

Encryption Function: Input plaintext and key, automatically generate DES encryption result.

Decryption function: Input the ciphertext and encryption key to restore the original content.

Key Requirement: Support 8-byte (64-bit) ASCII character keys, including letters, numbers and symbols.

Usage Scenario

- Network security teaching demonstration - data transmission protection test - encryption algorithm research - system development debugging

Cautions

1. DES algorithm is considered to be of low security strength, it is recommended to be used only in the test environment 2. Please keep the encryption key properly, it will not be able to decrypt the data if it is lost 3. It is recommended to use more secure algorithms, such as AES, for large files.

Technical Parameters

- Compliant with FIPS PUB 46-3 standard - 56-bit effective key length - 64-bit packet size - 16-round Feistel structure