3DES

des-5.jpg

Dublin Core

Title

3DES

Subject

Triple Data Encryption Standard

Description

The Triple Data Encryption Standard was derived (3DES) was derived from DES, when DES began to falter as a secure form of encryption and before AES was developed.

As suggested by the title, it works by running DES three times with three different 56-bit keys. Key 1 encrypts the plaintext, key 2 decrypts the ciphertext, and key 3 encrypts the decrypted cipher text. The reason this is stronger than DES alone is due to the use of three keys.

However, it's vulnerable to known plaintext attacks and meet-in-the-middle attacks for having the same algorithm repeated a few times.

Creator

National Institute of Standards and Technology

Source

https://www.comparitech.com/blog/information-security/3des-encryption/

Publisher

Comparitech

Date

1999

Contributor

Josh Lake

Relation

http://www.crypto-it.net/eng/attacks/meet-in-the-middle.html

Format

Encryption

Language

English

Type

Encryption

Still Image Item Type Metadata

Original Format

Encryption

Collection

Citation

National Institute of Standards and Technology, “3DES,” Ciphers and Encryption, accessed September 26, 2021, https://crypto.omeka.net/items/show/15.