Pseudo Random Number Generator

A pseudo random number generator is an algorithm that produces a sequence of numbers that approximates the properties of random numbers. While these generators are efficient and useful for many software applications, they are deterministic, meaning that if the initial seed is known, the entire sequence can be predicted.

In the context of cryptographic key generation, relying solely on a pseudo random number generator without a high-entropy seed is a major security flaw. Attackers can simulate the generator to predict private keys if they can guess or determine the seed.

Therefore, secure systems must combine these generators with strong, unpredictable entropy sources to ensure that the output is truly random. Understanding the limitations of these generators is crucial for developers when building secure wallets or protocols.

Misuse of these algorithms is a frequent source of vulnerabilities in poorly designed financial applications.