Decrypt Triple DES

Decrypt Triple DES (3DES) ciphertext to plaintext with a passphrase. Triple DES applies the DES cipher three times with a longer effective key and appears in older payment and enterprise systems; this tool targets CryptoJS OpenSSL-compatible salted 3DES blobs.

Algorithm

Base64 ciphertext plus passphrase feed CryptoJS TripleDES.decrypt, which reverses the salted encryption wrapper and returns UTF-8 text when the key matches. The sibling encrypt tool produces compatible input. Round-tripping confirms both ends share the same secret.

When to use it

• Read legacy 3DES payloads still embedded in configs or training datasets
• Verify encrypt→decrypt cycles during migration away from 3DES
• Demonstrate why modern systems prefer AES over triple-DES

Limitations

3DES is deprecated for new designs (NIST discourages it); prefer AES. Performance is slower than AES for large messages. Passphrase-derived keys inherit passphrase weakness. Non-CryptoJS raw 3DES modes (different padding/IV schemes) will not match.

Example

Encrypting Secret message with Triple DES and passphrase passphrase, then decrypting the Base64 result with this tool, restores Secret message. An incorrect passphrase does not.

This skill is available over A2A JSON-RPC and REST. When you already know the skill id and export, call execute directly—no discovery step required.

REST example

curl -sS -X POST https://toolplaza.app/api/helpers/execute \
  -H 'Content-Type: application/json' \
  -d '{"skillId":"cipher__from-triple-des-to-message","export":"decryptTripleDes","args":["Hello"]}'

A2A JSON-RPC example

Send POST https://toolplaza.app/api/a2a with:

{
  "jsonrpc": "2.0",
  "id": "1",
  "method": "message/send",
  "params": {
    "message": {
      "messageId": "uuid",
      "role": "user",
      "parts": [
        {
          "kind": "text",
          "text": "ignored"
        }
      ]
    },
    "metadata": {
      "toolplaza": {
        "skillId": "cipher__from-triple-des-to-message",
        "export": "decryptTripleDes",
        "args": [
          "Hello"
        ]
      }
    }
  }
}

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