Source: wikibot/quadratic-residuosity-problem
= Quadratic residuosity problem
{wiki=Quadratic_residuosity_problem}
The Quadratic Residuosity Problem (QRP) is a fundamental problem in number theory and has important implications in cryptography, particularly in the context of certain cryptographic protocols and security mechanisms. \#\#\# Definition The Quadratic Residuosity Problem can be defined as follows: Let \\( p \\) be a prime number, and let \\( a \\) be an integer such that \\( 1 \\leq a \< p \\).