Method and System for Renaming a User ID while Keeping the Same DES-Encrypted Password Authenticator and Password History
Publication Date: 2011-Apr-22
The IP.com Prior Art Database
A method and system for providing downward compatibility is disclosed. The method and system provides the ability to develop an application on a higher level of an operating system and allow the application to execute on a lower level of the operating system.
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Method and System for Renaming a User ID while Keeping the Same DES -Encrypted
Password Authenticator and Password History
Disclosed is a method and system for providing downward compatibility.
Typically, many customers use their application development machines as test beds in order to move to a new level of the operating system that they want to develop. The day-to-day activities of application developers may include maintaining existing applications and developing new ones. These applications are developed (compiled and link-edited) on the application development machine, and the resulting load modules or executables are sent to the production machine for execution.
It is during this time frame, when the application development machine is at a higher level than the production machine when the problems arises. The application developers may use a new function to develop applications that may not be available in the lower level system. Even in cases when no new function is used, changes with some of the API's, may cause problems related to downward compatibility.
The method and system disclosed herein enables customers and software vendors to only keep the highest level of the operating system for application development and be able to develop application for lower levels. The method involves providing a TARGET option in the C/C++ compiler and adding support in the system headers. This support provides the application developer "protection", to prevent applicat...