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Finite Groups

Bypsuzzi

In this post we provide the definition of finite groups and we show a few examples meaningful for cryptography and blockchain Def. Finite Groups Def. A group is a set together with an operation combining two elements of , which satisfies the following properties: Closeness: The group operation is closed: Associativity: , Identity: there is…

Permutations and Combinations

Permutations and Combinations

Bypsuzzi

Permutations are for lists, order matters.Combinations are for groups, order does not matter. Better Explained Permutations A Permutation is an ordering of elements from a group of objects. Permutations of a set Say we have n elements and we want to arrange all of them with a specific order. To count the number of possible…