Method and apparatus for securing indirect function calls by using program counter encoding

摘要

A method for securing indirect function calls by using program counter encoding is provided. The method includes inserting a decoding code for an address of a library function stored in a GOT (Global Offset Table) entry into a PLT (Procedure Linkage Table) entry when an object file is built; generating an encoding key corresponding to the decoding code; and encoding the GOT entry corresponding to the library function by using the encoding key when program execution begins.