Triple DES (3DES)

Triple DES applies the DES algorithm three times with two or three independent keys, providing effective key lengths of 112 or 168 bits. It was the standard encryption for MIFARE DESFire EV1 and early contactless payment cards. While significantly stronger than single DES, it has been superseded by AES due to performance and block size limitations.

3DES (Triple DES) | 168-bit clave | Simétrico

Vulnerabilidades conocidas

Legacy algorithm. NIST deprecated 3DES for all new applications in 2023 (NIST SP 800-131A Rev. 2). Vulnerable to Sweet32 birthday attack on the 64-bit block size after processing ~32 GB of data. Roughly 3x slower than AES-128 in hardware.