The complete VMPC family of cryptographic algorithms is described in detail in this section. The original FSE'04 conference paper on VMPC "VMPC One-Way Function and Stream Cipher" can be downloaded here:

VMPC one-way function

The foundation of the VMPC technology. Probably the simplest one-way function known in the world to date.
Currently under a research project for proving the function's one-wayness. If successful, it would provide breakthrough results for cryptography and theoretical computer science.


VMPC Stream Cipher with Key Scheduling Algorithm

The core of encryption technology employed in the VMPC Security 2 application. A very efficient and secure stream cipher with a dedicated key scheduling algorithm. Built as an extension of the VMPC one-way function.


VMPC-MAC authenticated encryption scheme

An efficient message authentication algorithm designed exclusively for the VMPC Stream Cipher. Employed in the VMPC Security 2 application.


VMPC-KSA3 Key Scheduling Algorithm

A unique algorithm allowing to derive an additional layer of cryptographic security from the Key Scheduling Algorithm. Data encrypted using this algorithm remain secure even if the underlying cipher is broken.


Research on VMPC algorithms

Current research results on the VMPC algorithms.


Inverting challenge for the VMPC function

A challenge aimed at encouraging scientific communities to investigate the problem of inverting the VMPC function.