DES/3DES Encryption/Decryption

Classic symmetric encryption tool supporting text and file processing

Algorithm

Mode

Padding

Key Size

64 bit (8 bytes)

Key

IV (Initialization Vector)

Plaintext Input Format

Ciphertext Output Format

Documentation

This tool performs local DES and 3DES encryption/decryption with multiple block modes, paddings, and text/file workflows.

Key Features

DES and TripleDES (2-key/3-key) support
CBC, ECB, CTR, CFB, and OFB modes
Multiple input/output formats
Text and file encryption/decryption

Steps

Select algorithm, mode, padding, and key format.
Enter key and IV (IV is usually required except ECB).
Input text or upload file.
Run encryption/decryption and copy output.

Notes

DES is considered weak; prefer modern algorithms like AES.
3DES has higher computational cost.
Parameters must match on both sides for compatibility.