DES & Triple DES (3DES) Tool
Encrypt and decrypt text using legacy DES and Triple DES (3DES / DES-EDE3) for legacy enterprise compatibility.
1 How to Use the DES & Triple DES (3DES) Tool
Select algorithm: Triple DES (3DES) or Single DES.
Enter your secret key (24 characters for 3DES, 8 characters for DES) and plain text.
Click 'Encrypt' to generate ciphertext, or paste ciphertext to 'Decrypt'.
Copy the resulting hex or Base64 string.
2 Technical Specifications
| Specification | Details & Capabilities |
|---|---|
| Standard | NIST FIPS 46-3 (Triple Data Encryption Algorithm) |
| Key Length | 56 bits (DES), 168 bits (3DES / 3-key mode) |
| Block Size | 64 bits |
| Status | Legacy standard (use AES for new applications) |
Trust and Privacy
100% Client-Side Privacy Guarantee
All calculations run directly in your local browser memory. Zero data is ever transmitted, logged, or stored on remote servers.
4 Frequently Asked Questions
Q. Is Single DES still secure?
No. DES has a tiny 56-bit key that can be brute-forced in hours using modern hardware. Triple DES is stronger but slow, which is why AES replaced both.
Q. Where is 3DES still found?
Older banking terminals, ATM payment networks, and legacy mainframe systems often still support Triple DES for backwards compatibility.