Berlekamp’s algorithm for factoring polynomials over finite fields

E165811

Berlekamp’s algorithm for factoring polynomials over finite fields is a foundational deterministic method in computational algebra that efficiently decomposes polynomials into irreducible factors over finite fields and underpins many modern algorithms in coding theory and cryptography.

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Statements (47)

Predicate Object
instanceOf algorithm in computational algebra ⓘ
algorithm over finite fields ⓘ
deterministic algorithm ⓘ
polynomial factorization algorithm ⓘ
appliesTo univariate polynomials over finite fields ⓘ
assumes finite field of characteristic p ⓘ
polynomial with coefficients in the given finite field ⓘ
category algorithms in algebraic coding theory ⓘ
algorithms in computational number theory ⓘ
complexityClass polynomial time in the degree and log of field size ⓘ
contrastWith randomized factorization algorithms such as Cantor–Zassenhaus ⓘ
enables efficient factorization of high-degree polynomials over small finite fields ⓘ
fieldOfUse coding theory ⓘ
computational algebra ⓘ
cryptography ⓘ
finite fields ⓘ
goal factor polynomials into irreducible factors over finite fields ⓘ
historicalSignificance one of the first efficient general algorithms for factoring polynomials over finite fields ⓘ
influenced Cantor–Zassenhaus algorithm ⓘ
modern polynomial factorization algorithms in computer algebra systems ⓘ
input monic polynomial over a finite field ⓘ
isDeterministic true ⓘ
mathematicalFoundation Frobenius endomorphism ⓘ
linear algebra over GF(p) ⓘ
structure of finite fields ⓘ
namedAfter Elwyn R. Berlekamp ⓘ
output product of irreducible polynomials over the same finite field ⓘ
property deterministic in contrast to many later randomized algorithms ⓘ
relatedTo Berlekamp–Massey algorithm ⓘ
Cantor–Zassenhaus algorithm ⓘ
Zassenhaus algorithm for factoring over the integers ⓘ
step compute nullspace of Berlekamp matrix ⓘ
construct Berlekamp matrix ⓘ
derive nontrivial factors via polynomial gcds ⓘ
typicalImplementation Gaussian elimination to find nullspace of Berlekamp matrix ⓘ
usedIn construction and analysis of error-correcting codes ⓘ
cryptanalytic attacks involving polynomial factorization over finite fields ⓘ
decoding of BCH codes ⓘ
decoding of Reed–Solomon codes ⓘ
implementation of finite-field arithmetic in computer algebra systems ⓘ
usesConcept Berlekamp subalgebra ⓘ
greatest common divisor of polynomials ⓘ
kernel of the Frobenius map minus identity ⓘ
linear algebra over finite fields ⓘ
nullspace of a matrix over a finite field ⓘ
worksOver GF(p) ⓘ
GF(p^m) ⓘ

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Referenced by (7)

Full triples — surface form annotated when it differs from this entity's canonical label.

Elwyn R. Berlekamp → notableWork → Berlekamp’s algorithm for factoring polynomials over finite fields ⓘ
Elwyn R. Berlekamp → knownFor → Berlekamp’s algorithm for factoring polynomials over finite fields ⓘ
Elwyn R. Berlekamp → notableFor → Berlekamp’s algorithm for factoring polynomials over finite fields ⓘ
subject linked to: Elwyn
Berlekamp’s algorithm for factoring polynomials over finite fields → usesConcept → Berlekamp subalgebra ⓘ
linked to: Berlekamp’s algorithm for factoring polynomials over finite fields
Berlekamp–Massey algorithm → relatedTo → Berlekamp algorithm ⓘ
linked to: Berlekamp’s algorithm for factoring polynomials over finite fields
Cantor–Zassenhaus algorithm → relatedTo → Berlekamp's algorithm ⓘ
linked to: Berlekamp’s algorithm for factoring polynomials over finite fields
Zassenhaus algorithm for factoring polynomials over the rationals → relatedTo → Berlekamp algorithm ⓘ
linked to: Berlekamp’s algorithm for factoring polynomials over finite fields