What Is Code Signing?

Code signing (English: Code signing ) is a measure to digitally sign an executable file or script to confirm the software author and ensure that the software has not been modified or damaged after signing. This measure uses cryptographic hashing to verify authenticity and integrity.

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The basis of code signing is the PKI security system.

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1. Code signing certificates eliminate "unknown publishers" that pop up in Internet Explorer and Windows operating systems.

2. The complete timestamp service includes freely timestamping your code to ensure that signatures do not expire. No more than 50 signatures per month. Certificate replacement can be done at any time.

3. Quick feedback in a short time.

4. Unconditional refund within 7 days from the date of certificate review.

5. There is usually a risk guarantee.

6. Comprehensive online service phone and email technical support.

7. Free certificate installation status check.

Many code signing implementations provide methods to sign code using a system involving a set of keys, similar to

In the context of consumer devices, such as game consoles, unsigned code usually refers to software that is not accepted and executed by an application that typically must have an encryption key. Most console games must be signed with a private key designed by the console manufacturer, or the game won't load on the console. There are usually several ways to get unsigned code executed, including

With the growth of the Internet of Things (IoT), connected devices are becoming a new requirement for code signing. As more and more sensors and devices are connected to the tight network ecosystem, the certificate issuing mechanism has been extended to machine identification other than human identification. Like code signing, this technology uses digital certification to ensure the physical authenticity and integrity of the code, and to verify and upgrade the code at any time during the product life cycle. This is creating a new dimension for code signing: increased security awareness and the need to keep private signing keys in a dedicated protected environment, creating a source of trust for the entire system. Given the popularity of malware and advanced persistent threats (APTs), many software vendors, online service providers, corporate IT organizations, and manufacturers of high-tech IoT devices are under pressure to increase the security of their high-tech manufacturing and code signing processes.