Cunningham chain (suomeksi)

Määritelmät:

(lb, en, math) A certain kind of sequence of prime numbers, with applications in cryptography.
A ''Cunningham chain of the first kind'' of length ''n'' is a sequence of prime numbers (''p''₁, ..., ''p''_''n'') such that for all 1 ≤ ''i'' < ''n'', ''p''_''i''+1 = 2''p''_''i'' + 1.
A ''Cunningham chain of the second kind'' of length ''n'' is a sequence of prime numbers (''p''₁,...,''p''_''n'') such that for all 1 ≤ ''i'' < ''n'', ''p''_''i''+1 = 2''p''_''i'' − 1.