Abstract: An efficient method for protecting entry addresses in computer programs allows direct jumps to permissible entry addresses. The permissible entry addresses are identified with a correlation of data which are not provided within the same individual instruction. By organizing the program code, the compiler or linker ensures that only legal entry addresses satisfy this correlation.
Type:
Grant
Filed:
April 9, 2001
Date of Patent:
May 2, 2006
Assignee:
Infineon Technologies AG
Inventors:
Christian May, Jürgen Freiwald, Olaf Brixel