[WEBINAR] Bulletproof: How Today's Business Leaders Stay on Top

Pseudo Random Number Generator (PRNG)

Definition - What does Pseudo Random Number Generator (PRNG) mean?

A pseudo random number generator (PRNG) refers to an algorithm that uses mathematical formulas to produce sequences of random numbers. PRNGs generate a sequence of numbers approximating the properties of random numbers. This is determined by a small group of initial values. PRNGs are fundamental to the use of cryptographic mechanisms and key generation as they ensure message uniqueness.

This term is also known as deterministic random number generator.

Techopedia explains Pseudo Random Number Generator (PRNG)

Widely used PRNG algorithms include: linear congruential generators, lagged Fibonacci generators, linear feedback shift registers, Blum Blum Shub, Fortuna and Mersenne Twister.

A pseudo random number generator starts from an arbitrary starting state using a seed state. Many numbers are generated in a short time and can also be reproduced later, if the starting point in the sequence is known. Hence, the numbers are deterministic and efficient.

PRNGs used in cryptographic purposes are called cryptographically secure PRNGs (CSPRNGs). This includes stream ciphers and block ciphers. The essential requirement for a CSPRNG is that it should pass all statistical tests restricted to polynomial time in the size of the seed.

Share this:

Connect with us

Email Newsletter

Join thousands of others with our weekly newsletter

The 4th Era of IT Infrastructure: Superconverged Systems
The 4th Era of IT Infrastructure: Superconverged Systems:
Learn the benefits and limitations of the 3 generations of IT infrastructure – siloed, converged and hyperconverged – and discover how the 4th...
Approaches and Benefits of Network Virtualization
Approaches and Benefits of Network Virtualization:
Businesses today aspire to achieve a software-defined datacenter (SDDC) to enhance business agility and reduce operational complexity. However, the...
Free E-Book: Public Cloud Guide
Free E-Book: Public Cloud Guide:
This white paper is for leaders of Operations, Engineering, or Infrastructure teams who are creating or executing an IT roadmap.
Free Tool: Virtual Health Monitor
Free Tool: Virtual Health Monitor:
Virtual Health Monitor is a free virtualization monitoring and reporting tool for VMware, Hyper-V, RHEV, and XenServer environments.
Free 30 Day Trial – Turbonomic
Free 30 Day Trial – Turbonomic:
Turbonomic delivers an autonomic platform where virtual and cloud environments self-manage in real-time to assure application performance.