What is difference between Black box testing and White box testing?

: In case of White box testing it is mandatory to know internals of software applications, such as structure, program functions, and implementation of how data flows between components. The tests covers white box testing are unit testing and integration testing. These tests are performed by developers, and it is mandatory to know programming and implementation knowledge, the test is based on design document provided by design team. Various testing techniques used in White box testing are Statement Coverage, Branch coverage, decision coverage, path coverage.
Black box testing does not need any understanding about internal structure of application, the tests coveres black box testing are system and acceptance testing, testing is based on requirement document received from product team. Various testing techniques used in Black box testing are Equivalence partitioning, Boundary value analysis, Decision table testing, and Error Guessing.