Trapdoor One Way Function In Cryptography

Trapdoor functions are widely used in cryptography.

Trapdoor one way function in cryptography. In mathematical terms if f. This module reviews the principles and requirements of asymmetric cryptography which uses a pair of keys with one party using a public. Since this function was the first combinatorial complete one way function to be demonstrated it is known as the universal one way function. A trapdoor function is a function that is easy to compute in one direction yet believed to be difficult to compute in the opposite direction finding its inverse without special information called the trapdoor.

An example of a trapdoor one way function is factorization of a product of two large primes. Trapdoor one way functions are types of one way functions that contain a kind of back door trapdoor. In mathematical terms if f is a trapdoor function then there exists some secret information t such that given f x and t it is easy to. As in the case of ordinary one way functions it is easy to compute their values for given data but it is very difficult to compute their inverse functions.

Video created by university of colorado system for the course asymmetric cryptography and key management. While selecting and verifying two large primes and multiplying them together is easy factoring the resulting product is as far as is known very difficult. However if one has some additional secret information he can easily compute the.