CSID Class

Windows Security API Reference

CSID Class

The CSID class represents a Security Identifier (SID) within the Windows operating system. SIDs are used to uniquely identify accounts, security groups, and the access control lists (ACLs) of securable objects.

Summary

This class provides methods for creating, manipulating, and comparing Security Identifiers.

Note: Security Identifiers are fundamental to Windows security. Understanding their structure and usage is crucial for developing secure applications.

Public Methods

Method Description
CSID() Constructor. Creates a new, empty CSID object.
CSID(const std::string& sidString) Constructor. Creates a CSID object from a string representation of a SID.
CSID(const CSID& other) Copy constructor. Creates a CSID object by copying another CSID object.
bool IsValid() const Checks if the current SID is valid. Returns true if valid, false otherwise.
std::string ToString() const Returns the string representation of the SID.
bool operator==(const CSID& other) const Equality operator. Compares two CSID objects for equality.
bool operator!=(const CSID& other) const Inequality operator. Compares two CSID objects for inequality.
bool operator<(const CSID& other) const Less than operator. Compares two CSID objects for ordering.
void Set(const std::string& sidString) Sets the SID from a string representation.
void Clear() Clears the current SID, making it an empty or invalid SID.

Example Usage

This example demonstrates how to create a CSID object from a string and check its validity.


#include <iostream>
#include "csid.h" // Assuming CSID class is in csid.h

int main() {
    CSID wellKnownSid("S-1-5-32-544"); // Built-in Administrators group SID

    if (wellKnownSid.IsValid()) {
        std::cout << "SID: " << wellKnownSid.ToString() << std::endl;
        std::cout << "Is valid: Yes" << std::endl;
    } else {
        std::cout << "SID is invalid." << std::endl;
    }

    CSID invalidSid("S-Invalid-SID");
    if (!invalidSid.IsValid()) {
        std::cout << "Invalid SID check passed." << std::endl;
    }

    return 0;
}

Remarks

The CSID class simplifies the process of working with SIDs in C++ applications. It abstracts away the low-level Win32 API calls for SID manipulation, providing a more object-oriented interface.

Common use cases include:

See Also