System and method for providing secure communication between computer systems

A system for providing secure communication between computing systems, comprising:

• means for applying a first numerical operation to a request code by a first system for generating a first request value, the request code being associated with a system task;
• means for concatenating an authentication code to the first request value for generating a first concatenated value;
• means for applying a second numerical operation to the first concatenated value for generating a first encoded value;
• and
• means for providing an instruction code to a second system, the instruction code including the first encoded value and the request code wherein the second system conditionally performs the system task in accordance with the request code.

A communication system for facilitating secure communication between systems, comprising:

• an authentication code;
• a request code being associated with a system task;
• a first request value generated by applying a first numerical operation to the request code, the first numerical operation being defined by an administrator;
• a first concatenated value generated by concatenating the first request value to the authentication code;
• a first encoded value generated by applying a second numerical operation to the first concatenated value, the second hash value being defined by the administrator;
• and
• an instruction code containing the first encoded value and the request code.