An Introduction to Code Signing Architectures and Techniques

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Code Signing provides secure and trusted distribution of software preventing tampering, corruption and forgery. Time Stamp Authority preserves the source time when the code was signed and allows software to be accepted by the OS and other client device platforms even after the certificate expires. Each component has a defined working process which is discussed in detail below. Code signing provides end-user confidence in software/code integrity and sender authenticity. It is highly important to secure the private signing key and certificate from misuse and unauthorized access. The four components together will achieve the full cycle completion of code signing process.