DES / 3DES Decrypt

This value is never sent to a server. Everything runs locally in your browser.

Algorithm

Ciphertext

Ciphertext encoding

Key input mode

Key

Mode

Padding PKCS7 (fixed)

IV (Initialization Vector)

What is this?

DES (Data Encryption Standard) is an older symmetric block cipher with a 56-bit key that's now vulnerable to brute-force attacks and isn't recommended for new systems. 3DES (Triple DES) applies DES three times to extend the effective key length and served as a transitional option for a while, but it too is being phased out in favor of AES. This tool exists for inspecting data that legacy systems already encrypted with DES/3DES.