After completing the program coding/compilation, developers of commercial software or applications can protect their software from unauthorized tampering or repackaging by utilizing a trusted third-party digital certification method through a Public Key Infrastructure (PKI) mechanism to sign the intended software release. When customers download the application software or execute the program over the internet, they can ensure its integrity without any modifications. The digital signature will authenticate the software's source and integrity.

With over 20 years of practical experience in the PKI field, CHANGING integrates and introduces a code signing system that safeguards the rights of creators. When releasing software products, there is no longer a need to bear the risks and pressures of potential third-party tampering. The signed code, backed by a signing certificate, eliminates the possibility of malicious reproduction and impersonation. By leveraging a Hardware Security Module (HSM) and Code Sign certificates, the system ensures program integrity, correctness, and authenticity within a secure environment. This, in turn, enhances the company's image, strengthens the brand trust relationship with users, and mitigates the potential impact and losses of future disasters.