Code signing plays a critical role in modern software distribution. It allows developers to digitally sign executables and scripts, ensuring that the code has not been tampered with and confirming the publisher's identity. Without a signed application, most operating systems and browsers throw warnings, making users hesitant to proceed.

While standard code signing offers basic protection, Extended Validation (EV) Code Signing Certificates take it further by providing stronger identity verification, better reputation with platforms like Microsoft SmartScreen, and greater assurance to end users. Choosing between standard and EV code signing isn't just about cost, it's about the type of trust your software needs to build.

What Is EV Code Signing?

EV Code Signing is an advanced form of code signing that involves a rigorous verification process before issuance. Certificate authorities (CAs) thoroughly validate the identity of the organization requesting the certificate, often requiring legal documentation and a verified physical address.

One major advantage of EV code signing is that it instantly establishes a reputation with Microsoft Defender SmartScreen. This means your applications avoid those alarming “unknown publisher” warnings, making installation smoother for end users.

Additionally, EV certificates require the use of a secure hardware token (USB device) to store the private key. This hardware-based protection ensures that only authorized individuals within your organization can sign code, adding a strong layer of security.

Common Use Cases for EV Code Signing Certificates

1. Distributing Windows Desktop Applications
When you publish Windows applications to the public, users often face SmartScreen warnings if your software lacks a trustworthy digital signature. EV certificates eliminate this issue by immediately gaining Microsoft's trust.

2. Enterprise Software Vendors
Large organizations distributing software across internal or client systems need to establish trust from the start. EV code signing provides high assurance, making it ideal for enterprise-grade deployments.

3. Financial and Healthcare Software
Industries like finance and healthcare handle sensitive data and require strict compliance. EV code signing helps meet regulatory expectations while ensuring users trust the software they install.

4. Open Source Projects with High Download Volume
Open-source maintainers who distribute tools to thousands of users can use EV certificates to build credibility. A trusted signature helps prevent impersonation and tampering, especially important for widely used libraries and utilities.

5. Driver Signing (Windows Kernel-Mode Drivers)
Microsoft mandates EV certificates for signing kernel-mode drivers. If you plan to distribute drivers for Windows 10 or later, EV code signing is non-negotiable.

6. Startups Launching Public Software Products
Startups often struggle with visibility and trust in their early stages. EV code signing helps new companies appear credible by validating their identity and reducing user installation friction.

EV Code Signing vs Standard Code Signing: Key Differences

EV Code Signing involves a deeper identity verification process. Certificate authorities verify legal records, physical address, and contact information, making it harder for malicious actors to obtain an EV cert. In contrast, standard code signing requires only basic business validation or domain control, which is easier to complete.

Another major difference is how the software is treated by platforms like Microsoft SmartScreen. EV-signed applications are trusted immediately, while standard-signed ones must build a reputation over time based on user installs and feedback.

EV certificates also require a secure hardware token to sign code, ensuring a higher level of private key protection. While standard certificates allow software-based key storage, this increases the risk of key compromise.

When to Choose EV Over Standard Code Signing

Choose EV Code Signing when you plan to distribute software to a wide public audience, especially if your users are non-technical and likely to be discouraged by warnings. If you're releasing drivers, handling sensitive data, or representing a new company that needs to establish trust quickly, EV is the right choice.

However, if you're building internal tools, testing apps, or working with a limited user base who already trusts your downloads, standard code signing may be enough.

Always consider your audience, the platform you're targeting, and your long-term distribution goals when deciding between EV and standard certificates.

Call to Action

Evaluate how your software is currently being distributed. Are users seeing warnings? Do you need to protect your reputation from the start?

If trust, security, and smooth installs matter to your business, EV code signing is worth the investment. Ready to make the switch? Check out our guide on integrating EV certificates into your CI/CD pipeline to streamline the process.