Quadratic residues

GPTKB entity

Statements (27)
Predicate Object
gptkbp:instanceOf gptkb:mathematical_concept
gptkbp:application Random number generation
Hash functions
Pseudorandom generators
Public-key cryptosystems
gptkbp:definedIn Integers congruent to a perfect square modulo n
https://www.w3.org/2000/01/rdf-schema#label Quadratic residues
gptkbp:opposedBy Quadratic nonresidues
gptkbp:property 0 is always a quadratic residue modulo n
1 is always a quadratic residue modulo n
For an odd prime p, there are (p-1)/2 quadratic residues modulo p
If x is a quadratic residue modulo n, then there exists y such that y^2 ≡ x (mod n)
gptkbp:relatedTo gptkb:Modular_arithmetic
gptkb:Multiplicative_group_modulo_n
gptkb:Number_theory
gptkb:Euler's_criterion
gptkb:Tonelli–Shanks_algorithm
Finite fields
gptkbp:studiedBy gptkb:Carl_Friedrich_Gauss
gptkbp:symbol gptkb:Legendre_symbol
Jacobi symbol
gptkbp:usedIn gptkb:Quadratic_reciprocity
gptkb:Algebraic_number_theory
Cryptography
Primality testing
gptkbp:bfsParent gptkb:Quadratic_reciprocity
gptkbp:bfsLayer 6