What does low level encryption mean?

Answer 1

Operating systems provide services for application programs, such as MP3 music players, that run under them. Windows, for example, provides a very common set of operating system services that provide access to files on hard disks such as "open a file", "close a file", "get next record", and so on. "low level programming" refers to a type of program that does its own "low level servicing"; in the case of "low level encryption" the programs exist to encrypt data, either resident data (data on file) or access to data streams, such as input from a keyboard. One would imagine that the only legitimate reason for writing "low level encryption" programs would be to reduce exposure from other programs possibly lurking within an operating system. these programs methods effectively bypass the operating system. the complexity and security risks involved in coding programs of that class make them relatively very rare, written for very particular reasons, and very spooky. Modern Operating Systems make serious (and i believe effective) efforts to prohibit "general low level access". The BIOS of a computer (Basic Input Output System) is the classic example of "low level programming" (aka, programming to the metal).